Silicon Isotopic Composition of Mainstream Presolar SiC Grains Revisited: The Impact of Nuclear Reaction Rate UncertaintiesOPEN ACCESS
Hung Kwan Fok, Marco Pignatari, Benoît Côté, and Reto Trappitsch The Astrophysical Journal Letters, Volume 977, Number 1 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Presolar grains are stardust particles that condensed in the ejecta or in…
Presolar Grains As Probes of Supernova NucleosynthesisOPEN ACCESS
Nan Liu, Maria Lugaro, Jan Leitner, Bradley S. Meyer, Maria Schönbächler Accepted by Space Science Reviews PDF (OPEN ACCESS) Update (12 November 2024), Space Science Reviews, Volume 220, article number 88:LINK (OPEN ACCESS)PDF (OPEN ACCESS)…
Micro- and nanoscale studies of insoluble organic matter and C-rich presolar grains in Murchison and Sutter’s Mill in preparation for Bennu sample analysisOPEN ACCESS
A. N. Nguyen, S. J. Clemett, K. Thomas-Keprta, C. M. O’D. Alexander, D. P. Glavin, J. P. Dworkin, H. C. Connolly Jr, D. S. Lauretta MAPS, Version of Record online: 30 August 2024 LINK (OPEN…
Isotope studies of presolar silicon carbide grains from supernovae: new constraints for hydrogen-ingestion supernova modelsOPEN ACCESS
Peter Hoppe, Jan Leitner, Marco Pignatari, and Sachiko Amari Monthly Notices of the Royal Astronomical Society, stae1523Published: 19 June 2024 LINK (OPEN ACCESS) “We report isotope data for C, N, Al, Si, and S of…
Explosive Nucleosynthesis in Core-collapse Type II Supernovae: Insights from New C, N, Si, and Al–Mg Isotopic Compositions of Presolar GrainsOPEN ACCESS
Nan Liu, Conel M. O’D. Alexander, Bradley S. Meyer, Larry R. Nittler, Jianhua Wang, and Rhonda M. Stroud The Astrophysical Journal Letters, Volume 961, Number 1 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “We report C, N,…
Abundant presolar grains and primordial organics preserved in carbon-rich exogenous clasts in asteroid RyuguOPEN ACCESS
Ann. N. Nguyen, Prajkta Mane, Lindsay P. Keller, Laurette Piani, Yoshinari Abe, Jérôme Aléon, Conel M. O’D. Alexander, Sachiko Amari, Yuri Amelin, Ken-ichi Bajo, Martin Bizzarro, Audrey Bouvier, Richard W. Carlson, Marc Chaussidon, Byeon-Gak Choi,Nicolas…
An in situ study of presolar grains and the fine-grained matrices of the Meteorite Hills 00526 and Queen Alexandra Range 97008 unequilibrated ordinary chondrites
Laura B. Seifert, Pierre Haenecour, Tarunika Ramprasad, Thomas J. Zega MAPSVersion of Record online: 09 July 2023 LINK “Here we report in situ structural and chemical analyses of four presolar grains and the matrices of…
An in situ investigation of the preservation and alteration of presolar silicates in the Miller Range 07687 chondrite
Laura B. Seifert, Pierre Haenecour, Tarunika Ramprasad, Adrian J. Brearley, Thomas J. Zega MAPSVersion of Record online: 23 February 2023 LINK “Dust grains that formed around ancient stars and in stellar explosions seeded the early…
Abundance of Presolar Grains in the C3.00-Ungrouped Chondrite Chwichiya 002
Smith L. R.* Haenecour P. Barnes J. Domanik K. Neuman M. Wang K. 54th Lunar and Planetary Science Conference 2023 abstract [#2425] Chwichiya 002 is a C3.00-ungrouped chondrite with presolar grain abundances similar to the ones in the most primitive carbonaceous chondrites.
New Constraints for Supernova Models from Presolar Silicon Carbide X Grains with Very High 26Al/27Al RatiosOPEN ACCESS
Peter Hoppe, Jan Leitner, Marco Pignatari, and Sachiko Amari The Astrophysical Journal Letters, Volume 943, Number 2 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “We report C, N, Mg-Al, Si, and S isotope data of six 1–3μm-sized…
Tracing the history of an unusual compound presolar grain from progenitor star to asteroid parent body hostOPEN ACCESS
Sheryl A. Singerling, Larry R. Nittler, Jens Barosch, Elena Dobrica, Adrian J. Brearley, Rhonda M. Stroud Accepted for publication in Geochimica et Cosmochimica Acta on January 17, 2023 PDF (OPEN ACCESS) “We conducted a TEM…
Nucleation experiments on a titanium-carbon system imply nonclassical formation of presolar grainsOPEN ACCESS
Yuki Kimura, Kyoko K. Tanaka, Yuko Inatomi, Coskun Aktas, and Jürgen Blum Science Advances13 Jan 2023Vol 9, Issue 2 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Just as the shapes of snowflakes provide us with information on the temperature and humidity of…
On the Nucleosynthetic Origin of Presolar Silicon Carbide X-Grains
by Waheed Akram, Oliver Hallmann, Bernd Pfeiffer and Karl-Ludwig Kratz Universe, Volume 8, Issue 12Published: 28 November 2022 LINK (OPEN ACCESS)PDF (DOWNLOAD) “In this paper we present an extension of our nucleosynthesis parameter study within…
Diverse Assemblage of Presolar and Solar System Materials in Anhydrous Interplanetary Dust Particles: Coordinated NanoSIMS and TEM AnalysesOPEN ACCESS
A.N. Nguyen, K. Nakamura-Messenger, L.P. Keller, S. Messenger Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 9 September 2022 LINK (OPEN ACCESS) “A coordinated TEM and NanoSIMS isotopic imaging study of microtome sections of…
Isotopic ratios for C, N, Si, Al, and Ti in C-rich presolar grains from massive stars
Jordan Schofield, Marco Pignatari, Richard J Stancliffe, Peter Hoppe Monthly Notices of the Royal Astronomical Society, stac2498Published: 08 September 2022 LINK “Certain types of silicon carbide (SiC) grains, e.g. SiC-X grains, and low density (LD)…
Presolar O- and C-anomalous grains in unequilibrated ordinary chondrite matricesOPEN ACCESS
Jens Barosch, Larry R. Nittler, Jianhua Wang, Elena Dobrică, Adrian J. Brearley, Dominik C. Hezel, Conel M. O’D. Alexander Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 29 August 2022 LINK PDF (OPEN ACCESS)…
Presolar Stardust in Asteroid RyuguOPEN ACCESS
Jens Barosch, Larry R. Nittler, Jianhua Wang, Conel M. O’D. Alexander, Bradley T. De Gregorio, Cécile Engrand, Yoko Kebukawa, Kazuhide Nagashima, Rhonda M. Stroud, Hikaru Yabuta et all The Astrophysical Journal Letters, Volume 935, Number…
Dust from supernovae and their progenitors in the solar nebula
Peter Hoppe, Jan Leitner, János Kodolányi, Stephan Borrmann & Anthony P. Jones Nature AstronomyReview ArticlePublished: 01 August 2022 LINK “Pristine stardust grains from the interstellar gas and dust cloud from which our Solar System formed…
Slow Neutron-Capture Process: Low-Mass Asymptotic Giant Branch Stars and Presolar Silicon Carbide GrainsOPEN ACCESS
Nan Liu, Sergio Cristallo, Diego Vescovi Universe 2022, 8(7), 362Review, Published: 30 June 2022 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Presolar grains are microscopic dust grains that formed in the stellar winds or explosions of ancient…
Nanodiamond of Meteorites: Concentrations and Isolation Kinetics of Possible Initial Xenon Components
A. V. Fisenko & L. F. Semjonova Geochemistry International, Volume 60, pages 530–536Published: 06 June 2022 LINK “The uncertainty in the isotope compositions of the initial (primary) xenon components responsible for its measured composition in…
TEM analyses of in situ presolar grains from unequilibrated ordinary chondrite LL3.0 SemarkonaOPEN ACCESS
Sheryl A. Singerling, Larry R. Nittler, Jens Barosch, Elena Dobrica, Adrian J. Brearley, Rhonda M. Stroud Accepted for publication in Geochimica et Cosmochimica Acta on May 5, 2022 PDF (OPEN ACCESS) Update (11 May 2022):…
Coordinated chemical and microstructural analyses of presolar silicate grains from AGB/RGB stars and supernovae in the CO3.0 chondrite Dominion Range 08006
Laura B. Seifert, Pierre Haenecour, Thomas J. Zega MAPSVersion of Record online: 11 April 2022 LINK “We report the structural and chemical analyses of six presolar silicate grains identified in situ in the CO3.0 carbonaceous…
Hydrogen Burning of 29Si and Its Impact on Presolar Stardust Grains from Classical NovaeOPEN ACCESS
Lori Downen, Christian Iliadis, Art Champagne, Thomas Clegg, Alain Coc, and Jordi José The Astrophysical Journal, Volume 928, Number 2 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Presolar stardust grains found in primitive meteorites are believed to…
Comparison between Core-collapse Supernova Nucleosynthesis and Meteoric Stardust Grains: Investigating Magnesium, Aluminium, and ChromiumOPEN ACCESS
Jacqueline den Hartogh, Maria K. Petö, Thomas Lawson, Andre Sieverding, Hannah Brinkman, Marco Pignatari, and Maria Lugaro The Astrophysical Journal, Volume 927, Number 2Published: 2022 March 17 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Isotope variations of…
Presolar grain dynamics: creating nucleosynthetic variations through a combination of drag and viscous evolutionOPEN ACCESS
Mark A. Hutchison, Jean-David Bodénan, Lucio Mayer, Maria Schönbächler accepted for publication in MNRAS PDF (OPEN ACCESS) Update (21 March 2022): LINK “Meteoritic studies of solar system objects show evidence of nucleosynthetic heterogeneities that are…
Carbonaceous Presolar Grains in Asteroid Ryugu
Nittler L R. Barosch J. De Gregorio B. T. Stroud R. M. Yabuta H. et al. PDF LPSC 2022 abstract [#1423] “Dust made of carbon / Older than Sun, found in / Ryugu samples..”
Mineralogy, Petrography, and Presolar Components of the Chwichiya 002 Ungrouped Chondrite
Smith R. L. Haenecour P. Barnes J. J. Dominik K. Neuman M. et al. PDF LPSC 2022 abstract [#2873] “We constrained the mineralogy, petrography, and elemental composition of Chwichiya 002 in preparation for a NanoSIMS…
Microstructural and Chemical Investigations of Presolar Silicates from Diverse Stellar EnvironmentsOPEN ACCESS
Manish N. Sanghani, Luc Lajaunie, Kuljeet Kaur Marhas, William D. A. Rickard, Silver Sung-Yun Hsiao, Zan Peeters, Hsien Shang, Der-Chuen Lee, José. J. Calvino, and Martin Bizzarro The Astrophysical Journal, Volume 925, Number 2 LINK…
Evaluation of the classification of presolar silicon carbide grains using consensus clustering with resampling methods: an assessment of the confidence of grain assignments
Grethe Hystad, Asmaa Boujibar, Nan Liu, Larry R Nittler, Robert M Hazen Monthly Notices of the Royal Astronomical Society, stab3478Published: 03 December 2021 LINK “We report the use of several cluster analysis techniques to evaluate…
Oxygen and Aluminum-Magnesium Isotopic Systematics of Presolar Nanospinel Grains from CI Chondrite OrgueilOPEN ACCESS
Nan Liu, Nicolas Dauphas, Sergio Cristallo, Sara Palmerini, Maurizio Busso Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 26 November 2021 LINK PDF (OPEN ACCESS) “Presolar oxide grains have been previously divided into several…
Presolar Grain Isotopic Ratios as Constraints to Nuclear and Stellar Parameters of Asymptotic Giant Branch Star Nucleosynthesis
Sara Palmerini, Maurizio Busso, Diego Vescovi, Eugenia Naselli, Angelo Pidatella, Riccardo Mucciola, Sergio Cristallo, David Mascali, Alberto Mengoni, Stefano Simonucci et al The Astrophysical Journal, Volume 921, Number 1 LINK “Recent models for evolved low-mass…
New Multielement Isotopic Compositions of Presolar SiC Grains: Implications for Their Stellar Origins
Nan Liu, Jens Barosch, Larry R. Nittler, Conel M. O’D. Alexander, Jianhua Wang, Sergio Cristallo, Maurizio Busso, and Sara Palmerini The Astrophysical Journal Letters, Volume 920, Number 1 LINK “We report NanoSIMS Si and Mg–Al…
Molecular Dynamics Approach for Predicting Release Temperatures of Noble Gases in Presolar Nanodiamonds
Alireza Aghajamali, Andrey A. Shiryaev, and Nigel A. Marks The Astrophysical Journal, Volume 916, Number 2Published: 2 August 2021 LINK “Presolar meteoritic nanodiamond grains carry an array of isotopically distinct noble gas components and provide…
Survival of presolar p-nuclide carriers in the nebula revealed by stepwise leaching of Allende refractory inclusionsOPEN ACCESS
Bruce L. A. Charlier, François L. H. Tissot, Hauke Vollstaedt, Nicolas Dauphas, Colin J. N. Wilson, Ren T. Marquez Science Advances 09 Jul 2021:Vol. 7, no. 28, eabf6222 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The 87Rb-87Sr…
TEM Analyses of Unusual Presolar Silicon Carbide: Insights into the Range of Circumstellar Dust Condensation ConditionsOPEN ACCESS
S. A. Singerling, N. Liu, L. R. Nittler, C. M. O’D. Alexander, and R. M. Stroud The Astrophysical Journal, Volume 913, Number 2Published: 27 May 2021 LINK Update (31 May 2021): PDF (OPEN ACCESS)63 pages,…
Isotope Systematics of Presolar Silicate Grains: New Insights from Magnesium and Silicon
Peter Hoppe, Jan Leitner, János Kodolányi, and Christian Vollmer The Astrophysical Journal, Volume 913, Number 1 LINK “We report on Mg and Si isotope data of 86 presolar silicate grains identified through NanoSIMS oxygen ion…
Molybdenum Isotope Dichotomy in Meteorites Caused by s-Process Variability
Thomas Stephan and Andrew M. Davis The Astrophysical Journal, Volume 909, Number 1Published: 1 March 2021 LINK “Molybdenum isotopes measured in most individual presolar silicon carbide grains are dominated by s-process contributions from the helium…
Presolar Grain Abundance Variation in the Miller Range 090019 CO3.1 Chondrite
Nguyen A. N., Mane P., Ross D. K., Simon J. I. 52nd Lunar and Planetary Science Conference (2021), Abstract #2709 PDF “We determine a presolar O-rich grain abundance of 99ppm in MIL 090019 CO3.1. One…
The Presolar Grain Database for Silicon Carbide — Grain Type Assignments
Stephan T., Bose M., Boujibar A., Davis A. M., Gyngard F. et al. 52nd Lunar and Planetary Science Conference (2021), Abstract #2358 PDF “The updated Presolar Grain Database now contains data for 19,976 SiC grains….
Isotopic Constraints on the Building Blocks of the Solar System
Bermingham K. R., Meyer B. S., Frizzell K., Mezger K. M. 52nd Lunar and Planetary Science Conference (2021), Abstract #2107 PDF “Isotopic variations in meteorites coupled with new nucleosynthesis models are used to constrain the…
A Presolar Silicon Carbide Grain of Type C with Extremely Low 12C/13C Ratio
P. Hoppe, Schofield J., Pignatari M., Amari S. 52nd Lunar and Planetary Science Conference (2021), Abstract #1055 PDF “We report on a presolar SiC grain of Type C with an extremely low 12C/13C ratio of…
Initial 244Pu/238U Ratios and Search for Presolar SiC in CAIs Inferred from Noble Gas and Trace Element Abundances in CAIs from CV3 Chondrites
D. Nakashima, Friedrich J. M., Ott U. 52nd Lunar and Planetary Science Conference (2021), Abstract #1944 PDF “The Pu/U ratio estimated from noble gas and REE abundances in the five CV3 CAIs is consistent with…
Presolar stardust in highly pristine CM chondrites Asuka 12169 and Asuka 12236OPEN ACCESS
Larry R. Nittler, Conel M. O’D. Alexander, Andrea Patzer, Maximilien J. Verdier‐Paoletti Meteoritics & Planetary ScienceVersion of Record online: 18 January 2021 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “We report a NanoSIMS search for presolar grains…
Sputtering of Presolar Grains via Galactic Cosmic Rays in the Interstellar Medium
Akshat Garg, Kuljeet K. Marhas, and Vikram Goyal The Astrophysical Journal, Volume 905, Number 1Published: 2020 December 15 LINK “The sputtering rate of presolar silicon carbide grains due to galactic cosmic rays has been computed…
Cluster analysis of presolar silicon carbide grains: evaluation of their classification and astrophysical implicationsOPEN ACCESS
Asmaa Boujibar, Samantha Howell, Shuang Zhang, Grethe Hystad, Anirudh Prabhu, Nan Liu, Thomas Stephan, Shweta Narkar, Ahmed Eleish, Shaunna M. Morrison, Robert M. Hazen, Larry R. Nittler accepted at ApJL PDF (OPEN ACCESS) “Cluster analysis…
Presolar Stardust in Highly Pristine CM Chondrites Asuka 12169 and Asuka 12236OPEN ACCESS
Larry R. Nittler, Conel M. O’D. Alexander, Andrea Patzer, Maximilien J. Verdier-Paoletti Accepted for publication in Meteoritics and Planetary Science PDF (OPEN ACCESS) “We report a NanoSIMS search for presolar grains in the CM chondrites…
Origin of Large Meteoritic SiC Stardust Grains in Metal-rich AGB Stars
Maria Lugaro, Borbála Cseh, Blanka Világos, Amanda I. Karakas, Paolo Ventura, Flavia Dell’Agli, Reto Trappitsch, Melanie Hampel, Valentina D’Orazi, Claudio B. Pereira, Giuseppe Tagliente, Gyula M. Szabó, Marco Pignatari, Umberto Battino, Ashley Tattersall, Mattias Ek,…
Search for Nova Presolar Grains: γ-Ray Spectroscopy of 34Ar and its Relevance for the Astrophysical 33Cl(p,γ) Reaction
A. R. L. Kennington, G. Lotay, D. T. Doherty, D. Seweryniak, C. Andreoiu, K. Auranen, M. P. Carpenter, W. N. Catford, C. M. Deibel, K. Hadyńska-Klęk, S. Hallam, D. E. M. Hoff, T. Huang, R. V. F. Janssens, S. Jazrawi, J. José, F. G. Kondev, T….
NanoSIMS isotopic investigation of xenolithic carbonaceous clasts from the Kapoeta howarditeOPEN ACCESS
Nan Liu, Ryan C. Ogliore, Lionel G. Vacher Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 2 June 2020 PDF (OPEN ACCESS) Kapoeta images LINK “We report on the investigation of the inventories of…
Meteoritic Nanodiamonds: Alternative Composition of Xenon Components
A. V. Fisenko & L. F. Semjonova Solar System Research, Volume 54, pages 253–262 (2020) LINK “For the first time, abundances of the main xenon components (Xe-P3, Xe-P3(fr), Xe-P6 and Xe-pr instead Xe-HL) in the…
Advances in Cosmochemistry Enabled by Antarctic MeteoritesOPEN ACCESS
Meenakshi Wadhwa, Timothy J. McCoy, and Devin L. Schrader Annual Review of Earth and Planetary Sciences Vol. 48:233-258 (Volume publication date May 2020)First published as a Review in Advance on January 8, 2020 LINK (OPEN…
Mass-independent fractionation of titanium isotopes and its cosmochemical implications
François Robert, Romain Tartèse, Guillaume Lombardi, Peter Reinhardt, Mathieu Roskosz, Béatrice Doisneau, Zhengbin Deng & Marc Chaussidon Nature Astronomy (2020) LINK “Isotopes of heavy elements are produced in various amounts by nuclear processes in stars….
New Estimation of Presolar Grain Abundances in the Paris Meteorite
M. J. Verdier-Paoletti, L. R. Nittler, J. Wang 51st Lunar and Planetary Science Conference (2020), Abstract #2523 PDF (OPEN ACCESS) “C-rich and O-rich stardust grains have been extensively studied over the last decades [1]. Their…
Evidence of presolar SiC in the Allende Curious Marie calcium–aluminium-rich inclusionOPEN ACCESS
O. Pravdivtseva, F. L. H. Tissot, N. Dauphas & S. Amari Nature Astronomy , 1–8 LINK PDF (OPEN ACCESS) “Calcium–aluminium-rich inclusions (CAIs) are one of the first solids to have condensed in the solar nebula,…
Lifetimes of interstellar dust from cosmic ray exposure ages of presolar silicon carbideOPEN ACCESS
Philipp R. Heck, Jennika Greer, Levke Kööp, Reto Trappitsch, Frank Gyngard, Henner Busemann, Colin Maden, Janaína N. Ávila, Andrew M. Davis, and Rainer Wieler PNAS, first published January 13, 2020 LINK (OPEN ACCESS) PDF (OPEN…
Isotopic Signatures of Supernova Nucleosynthesis in Presolar Silicon Carbide Grains of Type AB with Supersolar 14N/15N Ratios
Peter Hoppe, Richard J. Stancliffe, Marco Pignatari, and Sachiko Amari The Astrophysical Journal, Volume 887, Number 1 LINK “We report high-resolution C, N, Al, Si, and S isotope data of 38 presolar SiC grains of…
The presolar grain inventory of fine‐grained chondrule rims in the Mighei‐type (CM) chondritesOPEN ACCESS
Jan Leitner, Knut Metzler, Christian Vollmer, Christine Floss, Pierre Haenecour, János Kodolányi, Dennis Harries, Peter Hoppe Meteoritics & Planetary Science LINK (OPEN ACCESS) PDF (OPEN ACCESS) “We investigated the inventory of presolar silicate, oxide, and…
An in situ investigation on the origins and processing of circumstellar oxide and silicate grains in carbonaceous chondrites
Thomas J. Zega, Pierre Haenecour, Christine Floss Meteoritics & Planetary Science LINK “We report on the isotopic, chemical, and structural properties of four O‐rich presolar grains identified in situ in the Adelaide ungrouped C2, LaPaZ…
Formation of Interstellar C60 from Silicon Carbide Circumstellar Grains
J. J. Bernal, P. Haenecour, J. Howe, T. J. Zega, S. Amari, and L. M. Ziurys The Astrophysical Journal Letters, Volume 883, Number 2 LINK “We have conducted laboratory experiments with analog crystalline silicon carbide…
Presolar Grains in Primitive Ungrouped Carbonaceous Chondrite Northwest Africa 5958OPEN ACCESS
Larry R. Nittler, Rhonda M. Stroud, Conel M. O’D. Alexander, Kaitlin Howell Accepted in Meteoritics and Planetary Science PDF (OPEN ACCESS) LINK “We report a correlated NanoSIMS-transmission electron microscopy study of the ungrouped carbonaceous chondrite…
Effects of aqueous alteration on primordial noble gases and presolar SiC in the carbonaceous chondrite Tagish Lake
M. E. I. Riebe, H. Busemann, C. M. O’D. Alexander, L. R. Nittler, C. D. K. Herd, C. Maden, J. Wang, R. Wieler Meteoritics & Planetary Science First Published: 4 September 2019 LINK “Effects of…
Origins of meteoritic nanodiamonds investigated by coordinated atom‐probe tomography and transmission electron microscopy studies
Josiah B. Lewis, Christine Floss, Dieter Isheim, Tyrone L. Daulton, David N. Seidman, Ryan Ogliore Meteoritics & Planetary Science First Published: 11 August 2019 LINK “To constrain the origins of meteoritic nanodiamonds, the abundance ratios…
Presolar Silicon Carbide Grains of Types Y and Z: Their Molybdenum Isotopic Compositions and Stellar OriginsOPEN ACCESS
Nan Liu, Thomas Stephan, Sergio Cristallo, Roberto Gallino, Patrick Boehnke, Larry R. Nittler, Conel M. O.’D. Alexander, Andrew M. Davis, Reto Trappitsch, Michael J. Pellin, Iris Dillmann The Astrophysical Journal (Accepted) PDF (OPEN ACCESS) Update…
A new population of dust from stellar explosions among meteoritic stardust
Jan Leitner & Peter Hoppe Nature Astronomy, 1–5 LINK “Primitive Solar System materials host small amounts of refractory dust grains predating the formation of the Sun and its planetary system. These ‘presolar’ grains condensed in…
Molybdenum Isotopes in Presolar Silicon Carbide Grains: Details of s-process Nucleosynthesis in Parent Stars and Implications for r- and p-processes
Thomas Stephan, Reto Trappitsch, Peter Hoppe, Andrew M. Davis, Michael J. Pellin, and Olivia S. Pardo The Astrophysical Journal, Volume 877, Number 2 LINK “We have analyzed molybdenum isotopes, together with strontium and barium isotopes,…
Laboratory evidence for co-condensed oxygen- and carbon-rich meteoritic stardust from nova outbursts
Pierre Haenecour, Jane Y. Howe, Thomas J. Zega, Sachiko Amari, Katharina Lodders, Jordi José, Kazutoshi Kaji, Takeshi Sunaoshi & Atsushi Muto Nature Astronomy, 1–5 LINK “Although their parent stars no longer exist, the isotopic and…
First Detection of Presolar Grains in Paris, the Most Preserved CM Chondrite
M. J. Verdier-Paoletti, L. R. Nittler, J. Wang 50th Lunar and Planetary Science Conference (2019), Abstract #2948 PDF abstract
Condensation of SiC Stardust in CO Nova OutburstsOPEN ACCESS
Maitrayee Bose, Sumner Starrfield Accepted in the Astrophysical Journal PDF (OPEN ACCESS) Update (27 February 2019): LINK “This study on presolar grains compares high-precision isotopic compositions of individual SiC grains with low 12C/13C ratios, low…
New Insights into the Galactic Chemical Evolution of Magnesium and Silicon Isotopes from Studies of Silicate Stardust
Peter Hoppe, Jan Leitner, János Kodolányi The Astrophysical Journal, Volume 869, Number 1 LINK “We report high-resolution (<100 nm) Mg and Si isotope data of 12 presolar silicate grains (230–440 nm) from red giant and/or…
Structural Investigation of Silicon Carbide X Grains: Constraints on Condensation in Supernova Ejecta
János Kodolány, Christian Vollmer, Peter Hoppe, and Maren Müller The Astrophysical Journal Volume 868, Number 1 LINK “We analyzed seven presolar SiC grains of supernova origin (average diameter: 1–2 μm) with transmission electron microscopy. Five…
High-temperature Dust Condensation around an AGB Star: Evidence from a Highly Pristine Presolar CorundumOPEN ACCESS
Aki Takigawa, Rhonda M. Stroud, Larry R. Nittler, Conel M. O’D Alexander, Akira Miyake A. Takigawa et al 2018 ApJL 862 L13 PDF (OPEN ACCESS) “Corundum (α–Al2O3) and amorphous or metastable Al2O3 are common components…
Neon isotopes in individual presolar low‐density graphite grains from the Orgueil meteorite
Philipp R. Heck, Manavi Jadhav, Matthias M. M. Meier, Teruyuki Maruoka, Sachiko Amari, Ernst K. Zinner, Henner Busemann, Colin Maden, Frank Gyngard, Heinrich Baur, Rainer Wieler Meteorit Planet Sci. . doi:10.1111/maps.13129 LINK “We present He…
Extremely 54Cr- and 50Ti-rich presolar oxide grains in a primitive meteorite: Formation in rare types of supernovae and implications for the astrophysical context of solar system birthOPEN ACCESS
Larry R. Nittler, Conel M. O’D. Alexander, Nan Liu, Jianhua Wang Accepted for publication in The Astrophysical Journal Letters PDF (OPEN ACCESS) “We report the identification of 19 presolar oxide grains from the orgu CI…
High Abundances of Presolar Grains and 15N-rich Organic Matter in CO3.0 Chondrite Dominion Range 08006OPEN ACCESS
Larry R. Nittler, Conel M. O’D. Alexander, Jemma Davidson, My E. I. Riebe, Rhonda M. Stroud, Jianhua Wang accepted for publication in Geochimica Cosmochimica Acta PDF (OPEN ACCESS) Update (10 Feb 2018): LINK “NanoSIMS C-,…
Late formation of silicon carbide in type II supernovaeOPEN ACCESS
Nan Liu, Larry R. Nittler, Conel M. O’D. Alexander and Jianhua Wang Science Advances 17 Jan 2018: Vol. 4, no. 1, eaao1054 DOI: 10.1126/sciadv.aao1054 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “We have found that individual…
Transition Elements in Supernova Presolar Grains: Condensation versus Implantation
Kuljeet K. Marhas and Piyush Sharda The Astrophysical Journal, Volume 853, Number 1 LINK “We compute the concentrations of five transition elements (Cr, Fe, Co, Ni, and Zn) via condensation and implantation in supernova presolar…
A study of presolar material in hydrated lithic clasts from metal-rich carbonaceous chondrites
Leitner, J., Hoppe, P. and Zipfel, J. Meteoritics & Planetary Science. doi: 10.1111/maps.12994 LINK “We report on the investigation of presolar grain inventories of hydrated lithic clasts in three metal-rich carbonaceous chondrites from the CR…
Coordinated EDX and micro-Raman analysis of presolar silicon carbide: A novel, nondestructive method to identify rare subgroup SiC
Replaced (7 August 2020) by: Coordinated EDX and micro‐Raman analysis of presolar silicon carbide: A novel, nondestructive method to identify rare subgroup SiC Nan Liu, Andrew Steele, Larry R. Nittler, Rhonda M. Stroud, Bradley T….
Correlated silicon and titanium isotopic compositions of presolar sic grains from the Murchison CM2 chondrite
Frank Gyngard, Sachiko Amari, Ernst Zinner, Kuljeet Kaur Marhas Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 23 September 2017 LINK “We report correlated Si, and Ti isotopic compositions and elemental concentrations of…
Bonanza: An extremely large dust grain from a supernova
Frank Gyngard, Manavi Jadhav, Larry R. Nittler, Rhonda M. Stroud, Ernst Zinner Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 7 September 2017 LINK “We report the morphology, microstructure, and isotopic composition of…
The stardust abundance in the local interstellar cloud at the birth of the Solar System
Peter Hoppe, Jan Leitner & János Kodolányi Nature Astronomy (2017) doi:10.1038/s41550-017-0215-0 Published online: 14 August 2017 LINK “Primitive Solar System materials, such as certain types of meteorites, interplanetary dust particles and cometary matter, contain small…
J-type carbon stars: A dominant source of 14N-rich presolar SiC grains of type ABOPEN ACCESS
Nan Liu, Thomas Stephan, Patrick Boehnke, Larry R. Nittler, Conel M. O’D. Alexander, Jianhua Wang, Andrew M. Davis, Reto Trappitsch, Michael J. Pellin The Astrophysical Journal Letters PDF (OPEN ACCESS) updated: 22 July 2017 LINK…
Microanalytical Investigation of Fine-Grained Matrix Material in Elephant Moraine 92042: Effects of Parent Body Processing on Primitive Components
Koch I. Floss C. * 80th Annual Meeting of the Meteoritical Society 2017 [#6013] abstract (PDF) “Aqueous alteration has affected presolar silicate abundances in the CR chondrite EET 92042 and has resulted in elemental changes…
The neutron capture process in the He shell in core-collapse supernovae: Presolar silicon carbide grains as a diagnostic tool for nuclear astrophysics
Marco Pignatari, Peter Hoppe, Reto Trappitsch, Chris Fryer, F.X. Timmes, Falk Herwig, Raphael Hirschi Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 8 June 2017 LINK “Carbon-rich presolar grains are found in primitive…
Do meteoritic silicon carbide grains originate from asymptotic giant branch stars of super-solar metallicity?
Maria Lugaro, Amanda I. Karakas, Mária Pető, Emese Plachy Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 8 June 2017 LINK “We compare literature data for the isotopic ratios of Zr, Sr, and…
Presolar Silicates in the Matrix and Fine-grained Rims Around Chondrules in Primitive CO3.0 Chondrites: Evidence for Pre-Accretionary Aqueous Alteration of the Rims in the Solar Nebula
Pierre Haenecour, Christine Floss, Thomas J. Zega, Thomas K. Croat, Alian Wang, Bradley L. Jolliff, Paul Carpenter Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 8 June 2017 LINK “To investigate the origin…
Simultaneous iron and nickel isotopic analyses of presolar silicon carbide grains
Reto Trappitsch, Thomas Stephan, Michael R. Savina, Andrew M. Davis, Michael J. Pellin, Detlef Rost, Frank Gyngard, Roberto Gallino, Sara Bisterzo, Sergio Cristallo, Nicolas Dauphas Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online…
Iron and nickel isotope compositions of presolar silicon carbide grains from supernovae
János Kodolányi, Thomas Stephan, Reto Trappitsch, Peter Hoppe, Marco Pignatari, Andrew M. Davis, Michael J. Pellin Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 29 May 2017 LINK “We report the carbon, silicon,…
Rare Earth Element abundances in presolar SiC
T.R. Ireland, J.N. Ávila, M. Lugaro, S. Cristallo, P. Holden, P. Lanc, L. Nittler, C.M.O’D. Alexander, F. Gyngard, S. Amari Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 29 May 2017 LINK “Individual…
Stellar origin of 15N-rich presolar SiC grains of type AB: supernovae with explosive hydrogen burningOPEN ACCESS
Nan Liu, Larry R. Nittler, Marco Pignatari, Conel M. O’D. Alexander, Jianhua Wang The Astrophysical Journal Letters PDF (OPEN ACCESS) “We report C, N, and Si isotopic data for 59 highly 13C-enriched presolar submicron- to…
Osmium isotopic homogeneity in the CK carbonaceous chondrites
Steven Goderis, Alan D. Brandon, Bernhard Mayer, Munir Humayun Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 18 May 2017 LINK “Variable proportions of isotopically diverse presolar components are known to account for…
Correlated Nanoscale Characterization of a Unique Complex Oxygen-rich Stardust Grain: Implications for Circumstellar Dust Formation
J. Leitner, P. Hoppe, C. Floss, F. Hillion, T. Henkel Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 11 May 2017 LINK “We report the light to intermediate-mass element abundances as well as…
Titanium isotopic compositions of rare presolar SiC grain types from the Murchison meteorite
Ann N. Nguyen, Larry R. Nittler, Conel M.O’D. Alexander, Peter Hoppe Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 27 February 2017 LINK “We report the Ti isotopic compositions of 8 mainstream, 22…
Correlated XANES, TEM, and NanoSIMS of Presolar Graphite Grains
Evan E. Groopman, Larry R. Nittler Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 20 February 2017 LINK “We report correlated XANES, TEM, and NanoSIMS measurements of twelve presolar graphite grains extracted from…
NanoSIMS Isotope Studies of Rare Types of Presolar Silicon Carbide Grains from the Murchison Meteorite: Implications for Supernova Models and the Role of 14C
Peter Hoppe, Marco Pignatari, János Kodolányi, Elmar Gröner, Sachiko Amari Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 9 February 2017 LINK “We have conducted a NanoSIMS ion imaging survey of about 1800…
Abundances and Compositions of Presolar Grains in CR2 Chondrite EET 92042
I. Koch, C. Floss 48th Lunar and Planetary Science Conference (2017), Abstract #2984 LINK
Presolar Grains in Micrometeorites: Evidence for the Injection of Supernova Dust into the Solar Nebula
P. Haenecour, C. Floss, R. Ogliore, A. Wang, T. Yada 48th Lunar and Planetary Science Conference (2017), Abstract #1080 LINK
Search for Primitive Matter in the Solar System
G. Libourel, P. Michel, M. Delbo, C. Ganino, A. Recio-Blanco, P. de Laverny, M. E. Zolensky, A. R. Krot 48th Lunar and Planetary Science Conference (2017), Abstract #2280 LINK
From Presolar to Solar Silicates: Resolving the Ancestry of Silicates in Primitive Solids
K. L. Villalon, C. Floss, T. Stephan, R. Trappitsch, I. Koch, L. Kӧӧp, A. M. Davis 48th Lunar and Planetary Science Conference (2017), Abstract #3029 PDF
Origin of meteoritic stardust unveiled by a revised proton-capture rate of 17O
M. Lugaro, A. I. Karakas, C. G. Bruno, M. Aliotta, L. R. Nittler, D. Bemmerer, A. Best, A. Boeltzig, C. Broggini, A. Caciolli, F. Cavanna, G. F. Ciani, P. Corvisiero, T. Davinson, R. Depalo, A….
Diffusion of Oxygen Isotopes in Thermally Evolving Planetesimals and Size Ranges of Presolar Silicate GrainsOPEN ACCESS
S. Wakita, T. Nozawa, Y. Hasegawa accepted for publication in ApJ PDF (OPEN ACCESS) Update (13 February 2017): LINK “Presolar grains are small particles found in meteorites through their isotopic compositions which are considerably different…
Diffusion of Helium in SiC and Implications for Retention of Cosmogenic He
D.J. Cherniak, E.B. Watson, R. Trappisch, J.B. Thomas, D. Chaussende Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 11 August 2016 LINK “Diffusion of helium has been characterized in silicon carbide of cubic…
The First Discovery of Presolar Graphite Grains from the Highly Reducing Qingzhen (EH3) Meteorite
Yuchen Xu, Yangting Lin, Jianchao Zhang, and Jialong Hao The Astrophysical Journal, Volume 825, Number 2 Published 2016 July 7 LINK “Presolar graphite grains have been extensively studied, but are limited in carbonaceous chondrites, particularly…
Coordinated Analysis of Two Graphite Grains from the CO3.0 LAP 031117 Meteorite: First Identification of a CO Nova Graphite and a Presolar Iron Sulfide SubgrainOPEN ACCESS
Pierre Haenecour, Christine Floss, Jordi Jose, Sachiko Amari, Katharina Lodders, Manavi Jadhav, Alian Wang, Frank Gyngard Accepted for publication in The Astrophysical Journal PDF (open access) abstract “Presolar grains constitute remnants of stars that existed…
Production and Recoil Loss of Cosmogenic Nuclides in Presolar Grains
Reto Trappitsch and Ingo Leya Published 2016 May 16 The Astrophysical Journal, Volume 823, Number 1 LINK “Presolar grains are small particles that condensed in the vicinity of dying stars. Some of these grains survived…
Revisiting the lifetime estimate of large presolar grains in the interstellar medium
Hiroyuki Hirashita, Takaya Nozawa, Ryosuke S. Asano, Typhoon Lee Planetary and Space Science In Press, Accepted Manuscript, Available online 22 February 2016 doi:10.1016/j.pss.2016.02.006 updated (Feb. 24) PDF (OPEN ACCESS) LINK “Some very large View the…
Mineralogy of Presolar Silicate and Oxide Grains of Diverse Stellar Origins
Ann N. Nguyen, Lindsay P. Keller, and Scott Messenger Astrophysical Journal, Volume 818, Number 1 LINK “We report the chemical and structural analysis of nine presolar silicate grains and one presolar oxide grain from the…
Meteorite Hills (MET) 00526: An Unequilibrated Ordinary Chondrite with High Presolar Grain Abundances
C. Floss, P. Haenecour 47th Lunar and Planetary Science Conference (2016), Abstract #1030 PDF
Xenon and iodine reveal multiple distinct exotic xenon components in Efremovka “nanodiamonds”
J.D. Gilmour, G. Holland, A.B. Verchovsky, A.V. Fisenko, S.A. Crowther, G. Turner Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 31 December 2015 doi:10.1016/j.gca.2015.12.028 LINK
Ancient stardust in fine-grained chondrule dust rims from carbonaceous chondrites
Jan Leitner, Christian Vollmer, Christine Floss, Jutta Zipfel, Peter Hoppe Earth and Planetary Science Letters In Press, Corrected Proof, Available online 3 December 2015 doi:10.1016/j.epsl.2015.11.028 LINK “Carbonaceous chondrites are fragments from primitive parent asteroids, which…
Probing the Physical Conditions of Supernova Ejecta with the Measured Sizes of Presolar Al2O3 Grains
Takaya Nozawa, Shigeru Wakita, Yasuhiro Hasegawa, and Takashi Kozasa The Astrophysical Journal Letters Number 2, 2015 October 1 (L15-L39) 2015 ApJ811 L39 Published 2015 September 30 LINK “A few particles of presolar Al2O3 grains with…
s-Process Os isotope enrichment in ureilites by planetary processing
S. Goderis, A.D. Brandon, B. Mayer, M. Humayun Earth and Planetary Science Letters Volume 431, 1 December 2015, Pages 110–118 doi:10.1016/j.epsl.2015.09.021 LINK “Ubiquitous nucleosynthetic isotope anomalies relative to the terrestrial isotopic composition in Mo, Ru,…
R Coronae Borealis Stars Are Viable Factories of Pre-solar Grains
Amanda I. Karakas, Ashley J. Ruiter, and Melanie Hampel The Astrophysical Journal Volume 809, Number 2 ApJ 809 184. doi:10.1088/0004-637X/809/2/184 LINK
Inferred Initial 26Al/27Al Ratios in Presolar Stardust Grains from Supernovae are Higher than Previously Estimated
Evan Groopman, Ernst Zinner, Sachiko Amari, Frank Gyngard, Peter Hoppe, Manavi Jadhav, Yangting Lin, Yuchen Xu, Kuljeet Marhas, and Larry R. Nittler The Astrophysical Journal Volume 809 Number 1 Evan Groopman et al. 2015 ApJ…
Survival of refractory presolar grain analogs during Stardust-like impact into Al foils: Implications for Wild 2 presolar grain abundances and study of the cometary fine fraction
Croat, T. K., Floss, C., Haas, B. A., Burchell, M. J. and Kearsley, A. T. Meteoritics & Planetary Science. doi: 10.1111/maps.12474 LINK
New Constraints on the Abundances of Silicate and Oxide Stardust from Supernovae in the Acfer 094 Meteorite
Peter Hoppe, Jan Leitner, and János Kodolányi ApJ 808 L9. doi:10.1088/2041-8205/808/1/L9 LINK
Iron isotopic measurements in presolar silicate and oxide grains from the Acfer 094 ungrouped carbonaceous chondrite
Wei Jia Ong and Christine Floss Meteoritics & Planetary Science doi: 10.1111/maps.12475 LINK
Intrinsic W nucleosynthetic isotope variations in carbonaceous chondrites: Implications for W nucleosynthesis and nebular vs. parent body processing of presolar materials
Christoph Burkhardt, Maria Schönbächler Icarus In Press, Accepted Manuscript, Available online 20 June 2015 LINK
Cosmogenic Production Rates in Presolar SiC Grains
Trappitsch R. * Leya I. 78th Annual Meeting of the Meteoritical Society (2015), abstract #5068 abstract (PDF)
The Presolar Grain Inventory of CM Chondrites
Leitner J. * Hoppe P. Metzler K. Haenecour P. Floss C. Vollmer C. 78th Annual Meeting of the Meteoritical Society (2015), abstract #5178 abstract (PDF)
Photoluminescence of silicon-vacancy defects in nanodiamonds of different chondrites
Shiryaev, A. A., Fisenko, A. V., Semjonova, L. F., Khomich, A. A. and Vlasov, I. I. (2015) Meteoritics & Planetary Science. doi: 10.1111/maps.12450 LINK Photoluminescence spectra show that silicon impurity is present in lattice of…
Sulfur in presolar silicon carbide grains from asymptotic giant branch stars
Hoppe, P., Lodders, K. and Fujiya, W. (2015) Meteoritics & Planetary Science. doi: 10.1111/maps.12449 LINK
Photoluminescence of silicon-vacancy defects in nanodiamonds of different chondrites
A. A. Shiryaev, A. V. Fisenko, L. F. Semjonova, A. A. Khomich, I. I. Vlasov Meteoritics and Planetary Science PDF (full text) LINK
Evidence for nucleosynthetic enrichment of the protosolar molecular cloud core by multiple supernova events
Martin Schiller, Chad Paton, Martin Bizzarro Geochimica et Cosmochimica Acta Available online 13 November 2014 LINK
Presolar materials and isotope anomalies in the unique carbonaceous chondrite Miller Range 07687
J. Davidson, L. R. Nittler, and C. M. O’D. Alexander. Goldschmidt 2014, Abstract #503 LINK
Petrography, stable isotope compositions, microRaman spectroscopy, and presolar components of Roberts Massif 04133: A reduced CV3 carbonaceous chondrite
Davidson, J., Schrader, D. L., Alexander, C. M. O’D., Lauretta, D. S., Busemann, H., Franchi, I. A., Greenwood, R. C., Connolly, H. C., Domanik, K. J. and Verchovsky, A. Meteoritics & Planetary Science. doi: 10.1111/maps.12377…
A Transmission Electron Microscopy Study of Presolar Spinel
A Transmission Electron Microscopy Study of Presolar Spinel Zega TJ, Nittler LR, Gyngard F, Alexander CMO’D, Stroud RM and Ernst K. Zinner EK Geochimica et Cosmochimica Acta Volume 124, 1 January 2014, Pages 152–169 DOI:…
Stardust in meteorites
Stardust in meteorites Andrew M. Davis PNAS 2011 108 (48) 19142-19146; published ahead of print November 21, 2011, doi:10.1073/pnas.1013483108 PDF LINK LINK (abstract) Primitive meteorites, interplanetary dust particles, and comets contain dust grains that formed…
