Spectrophotometric evidence for a metal-bearing, carbonaceous, and pristine interstellar comet 3I/ATLASOPEN ACCESS
Josep M. Trigo-Rodríguez, Maria Gritsevich, Jürgen Blum submitted article PDF (OPEN ACCESS) “3I/ATLAS is only the second confirmed cometary object known to enter the Solar System from interstellar space. Cosmogonic considerations suggest that this body…
3I/ATLAS: In Search of the Witnesses to Its VoyageOPEN ACCESS
X. Pérez-Couto, S. Torres, E. Villaver, A. J. Mustill, M. Manteiga Submitted to ApJL, draft version September 10, 2025 PDF (OPEN ACCESS) “3I/ATLAS is the third interstellar object discovered to date, following 1I/’Oumuamua and 2I/Borisov….
Extreme Negative Polarisation of New Interstellar Comet 3I/ATLASOPEN ACCESS
Zuri Gray, Stefano Bagnulo, Galin Borisov, Yuna G. Kwon, Alberto Cellino, Ludmilla Kolokolova, Rosemary C. Dorsey, Grigori Fedorets, Mikael Granvik, Eric MacLennan, Olga Muñoz, Philippe Bendjoya, Maxime Devogèle, Simone Ieva, Antti Penttilä, Karri Muinonen submitted…
Simultaneous visible spectrophotometry of interstellar object 3I/ATLAS with Seimei/TriCCSOPEN ACCESS
Jin Beniyama accepted for publication in PASJ Letter. This is a pre-copyedited, author-produced version of an article accepted for publication in “Publications of the Astronomical Society of Japan” following peer review. PDF (OPEN ACCESS) “3I/ATLAS,…
Water Production Rates of the Interstellar Object 3I/ATLASOPEN ACCESS
Zexi Xing, Shawn Oset, John Noonan, Dennis Bodewits Submitted to ApJL, updated draft version: 8 September 2025 PDF (OPEN ACCESS) Original abstract text: “We report the first detection of water activity in the third confirmed…
Spectral Characteristics of Interstellar Object 3I/ATLAS from SOAR ObservationsOPEN ACCESS
Thomas H. Puzia, Rohan Rahatgaonkar, Juan Pablo Carvajal, Prasanta K. Nayak, Baltasar Luco revised and resubmitted to ApJL, draft version August 6, 2025 PDF (OPEN ACCESS) “Interstellar objects (ISOs) provide unique insights into the building…
Hubble Space Telescope Observations of the Interstellar Interloper 3I/ATLASOPEN ACCESS
David Jewitt, Man-To Hui, Max Mutchler, Yoonyoung Kim, Jessica Agarwal August 4, 2025 PDF (OPEN ACCESS) “We present high angular resolution observations of the third known interstellar interloper, 3I/ATLAS, from the Hubble Space Telescope. The…
Pre-discovery TESS Observations of Interstellar Object 3I/ATLASOPEN ACCESS
Jorge Martinez-Palomera, Amy Tuson, Christina Hedges, Jessie Dotson, Thomas Barclay, Brian Powell Submitted to AAS (Aug 1, 2025), draft version: August 5, 2025 PDF (OPEN ACCESS) Update (27 November 2025): LINK (The Astrophysical Journal Letters,…
Temporal Evolution of the Third Interstellar Comet 3I/ATLAS: Spin, Color, Spectra and Dust ActivityOPEN ACCESS
T. Santana-Ros, O. Ivanova, S. Mykhailova, N. Erasmus, K. Kamiński, D. Oszkiewicz, T. Kwiatkowski, M. Husárik, T.S. Ngwane, A. Penttilä Astronomy & Astrophysics, Letter to the Editor, manuscript, August 4, 2025 PDF (OPEN ACCESS) “We…
Intercepting 3I/ATLAS at Closest Approach to Jupiter with the Juno spacecraftOPEN ACCESS
Abraham Loeb, Adam Hibberd, Adam Crowl Draft version July 30, 2025 PDF (OPEN ACCESS) The interstellar object 3I/ATLAS is expected to arrive at a distance of 53.56(±0.45) million km (0.358 ± 0.003 au) from Jupiter…
Precovery Observations of 3I/ATLAS from TESS Suggests Possible Distant ActivityOPEN ACCESS
Adina D. Feinstein, John W. Noonan, Darryl Z. Seligman submitted to AAS Journals, draft version: July 30, 2025Data behind the figures can be found here PDF (OPEN ACCESS) “3I/ATLAS is the third macroscopic interstellar object…
The Feasibility of a Spacecraft Flyby with the Third Interstellar Object 3I/ATLAS from Earth or MarsOPEN ACCESS
Atsuhiro Yaginuma, Tessa Frincke, Darryl Z. Seligman, Kathleen Mandt, Daniella N. DellaGiustina, Eloy Peña-Asensio, Aster G. Taylor, Michael C. Nolan Submitted to AAS Journals, draft version July 22, 2025 PDF (OPEN ACCESS) “We investigate the…
Spectroscopic Characterization of Interstellar Object 3I/ATLAS: Water Ice in the ComaOPEN ACCESS
Bin Yang, Karen J. Meech, Michael Connelley, Jacqueline V. Keane submitted to ApJL PDF (OPEN ACCESS) “We present optical and near-infrared spectroscopy of the interstellar object 3I/ATLAS, obtained with Gemini-S/GMOS and NASA IRTF/SpeX on 2025…
SF-DOE Vera C. Rubin Observatory Observations of Interstellar Comet 3I/ATLAS (C/2025 N1)OPEN ACCESS
Colin Orion Chandler, Pedro H. Bernardinelli, Mario Jurić, Devanshi Singh, Henry H. Hsieh, Ian Sullivan, R. Lynne Jones,Jacob A. Kurlander, Dmitrii Vavilov, Siegfried Eggl, Matthew Holman, Federica Spoto, Megan E. Schwamb, Eric J. Christensen, Wilson…
Assessing interstellar comet 3I/ATLAS with the 10.4 m Gran Telescopio Canarias and the Two-meter Twin TelescopeOPEN ACCESS
R. de la Fuente Marcos, J. Licandro, M. R. Alarcon, M Serra-Ricart, J. de Leon, C. de la Fuente Marcos, G. Lombardi, A. Tejero, A. Cabrera-Lavers, S. Guerra Arencibia, I. Ruiz Cejudo Submitted to A&A…
Near-Discovery Observations of Interstellar Comet 3I/ATLAS with the NASA Infrared Telescope FacilityOPEN ACCESS
Theodore Kareta (Villanova U.), Chansey Champagne (NAU), Lucas McClure (NAU), Joshua Emery (NAU), Benjamin N.L. Sharkey (UMD), James M. Bauer (UMD), Michael Connelly (UH/IRTF), John Rayner (UH/IRTF), Cristina Thomas (NAU), Vishnu Reddy (UAz), Megan Firgard…
Palomar and Apache Point Spectrophotometry of Interstellar Comet 3I/ATLASOPEN ACCESS
Matthew Belyakov, Christoffer Fremling, Matthew J. Graham, Bryce T. Bolin, Mukremin Kilic, Gracyn Jewett, Carey M. Lisse, Carl Ingebretsen, M. Ryleigh Davis, Ian Wong Submitted to RNAAS, draft version July 17, 2025 PDF (OPEN ACCESS)…
The Kinematic Age of 3I/ATLAS and its Implications for Early Planet FormationOPEN ACCESS
Aster G. Taylor, Darryl Z. Seligman Submitted to ApJL, draft version July 14, 2025 PDF (OPEN ACCESS) Update (28 August 2025): The Astrophysical Journal Letters, Volume 990, Number 1 PDF (OPEN ACCESS) “The recent discovery…
X-SHOOTER Spectrum of Comet C/2025 N1: Insights into a Distant Interstellar VisitorOPEN ACCESS
A. Alvarez-Candal, J. L. Rizos, L. M. Lara, P. Santos-Sanz, P. J. Gutierrez, J. L. Ortiz, N. Morales, J. de León Astronomy & Astrophysics manuscript, submitted as Letter to the Editor PDF (OPEN ACCESS) “Comets…
From a Different Star: 3I/ATLAS in the context of the Ōtautahi-Oxford interstellar object population modelOPEN ACCESS
Matthew J. Hopkins, Rosemary C. Dorsey, John C. Forbes, Michele T. Bannister, Chris J. Lintott, Brayden Leicester Submitted to ApJ Letters, Draft version July 9, 2025 PDF (OPEN ACCESS) Update (1 September 2025): The Astrophysical…
Discovery and Preliminary Characterization of a Third Interstellar Object: 3I/ATLASOPEN ACCESS
Darryl Z. Seligman, Marco Micheli, Davide Farnocchia, Larry Denneau,John W. Noonan, Henry H. Hsieh, Toni Santana-Ros, John Tonry, Katie Auchettl, Luca Conversi, Maxime Devogèle, Laura Faggioli, Adina D. Feinstein, Marco Fenucci, Marin Ferrais, Tessa Frincke,…
Snapshot of a new interstellar comet: 3I/ATLAS has a red and featureless spectrumOPEN ACCESS
Cyrielle Opitom, Colin Snodgrass, Emmanuel Jehin, Michele T. Bannister, Erica Bufanda, Sophie E. Deam, Rosemary Dorsey, Marin Ferrais, Said Hmiddouch, Matthew M. Knight, Rosita Kokotanekova, Brayden Leicester, Michaël Marsset, Brian Murphy, Vincent Okoth, Ryan Ridden-Harper,…
Interstellar comet 3I/ATLAS: discovery and physical descriptionOPEN ACCESS
Bryce T. Bolin, Matthew Belyakov, Christoffer Fremling, Matthew J. Graham, Candace L. Gray, Carl Ingebretsen, Gracyn Jewett, Mukremin Kilic, Carey M. Lisse, Diana Roderick, Ahmed. M. Abdelaziz, Laura-May Abron, Michael W. Coughlin, Eslam Elhosseiny, Cheng-Han…
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