activity
20232026
most citedLow NH/HO ratio in comet C/2020 F3 (NEOWISE) at 0.7 au from the Sun

9 citations · 15 across the 12 of their papers we have counts for

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12 papers · 1 filter

astro-ph.EP2026

Water D/H in 3I/ATLAS as a Probe of Formation Conditions in Another Planetary System

Luis E. Salazar Manzano, Teresa Paneque-Carreño, Martin A. Cordiner +17

Water reservoirs in the Solar System exhibit a deuterium enrichment that links back to the physical environment at the time of stellar birth. Gas-phase and ice-grain deuterium enri…

astro-ph.EP2026

Monitoring Volatile Evolution in Disrupting Comet D/2021 A1 (Leonard) with NOEMA and APEX

Timothy N. Proudkii, Nathan X. Roth, Jérémie Boissier +8

We report a pre-perihelion survey of volatile emissions from comet D/2021 A1 (Leonard) with the Northern Extended Millimeter Array (NOEMA; UT 2021 Nov. 5, 21, and Dec. 1) and the A…

astro-ph.EP2026

Isotopic Evidence for a Cold and Distant Origin of the Interstellar Object 3I/ATLAS

Martin Cordiner, Nathan X. Roth, Marco Micheli +16

Interstellar objects provide the only directly observable samples of icy planetesimals formed around other stars, and can therefore provide insight into the diversity of physical a…

astro-ph.EP2026

Coma Physics of an Interstellar Object: JWST Spatial-Spectral Mapping of 3I/ATLAS

Nathan X. Roth, Martin A. Cordiner, Stefanie N. Milam +17

We report a survey of molecular emission from cometary volatiles using the James Webb Space Telescope (JWST) toward interstellar object 3I/ATLAS carried out on UT 2025 December 22…

astro-ph.EP2026

An Enriched Methane D/H Ratio in the Interstellar Object 3I/ATLAS

Nathan X. Roth, Martin Cordiner, Stefanie Milam +15

Interstellar objects are interlopers from other planetary systems, and their volatile compositions provide a glimpse into planet formation around their host star. We present near-i…

astro-ph.EP2026

A Multi-Wavelength Study of Comet C/2022 E3 (ZTF): Complementary ALMA and JWST Investigations of Water and Methanol in Cometary Comae

K. D. Foster, M. A. Cordiner, Nathan X. Roth +7

Long-period comets, which are often considered to be representative of material in the protoplanetary disk that formed the Solar System, are ideal to investigate the question of ch…