Constraining oxygen isotope exchange kinetics between organic compounds and water using electrospray ionization Orbitrap mass spectrometry, and implications for the oxygen isotopic compositions of meteoritic organics

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Surjyendu Bhattacharjee, John M. Eiler Geochimica et Cosmochimica ActaAvailable online 5 August 2025 LINK “Oxygen isotopic composition of organic compounds is an important tracer of processes and environmental conditions, with applications ranging from prebiotic organic…

Pre-discovery TESS Observations of Interstellar Object 3I/ATLASOPEN ACCESS 

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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,…

Error dependencies in the space-based CNEOS fireball databaseOPEN ACCESS 

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Eloy Peña-Asensio, Hector Socas-Navarro, Darryl Z. Seligman Astronomy & Astrophysics manuscript no. aa54224-25 (August 5, 2025) PDF (OPEN ACCESS) “We evaluate the reliability of CNEOS-derived ephemerides of fireball events given the absence of the underlying…

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