activity
20072025
most citedTerrestrial deuterium-to-hydrogen ratio in water in hyperactive comets

102 citations · 307 across the 11 of their papers we have counts for

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17 papers · 1 filter

astro-ph.EP2025

Isotopic composition of cometary water and the origin of Earth's oceans

Dariusz C. Lis, Martin Cordiner, Nicolas Biver +4

Studies of the water content and isotopic composition of water-rich asteroids and comets are of key interest for understanding the late accretion stage of the Solar System cometary…

astro-ph.EP2023★ 24 cited

Gas Sources from the Coma and Nucleus of Comet 46P/Wirtanen Observed Using ALMA

M. A. Cordiner, N. X. Roth, S. N. Milam +10

Gas-phase molecules in cometary atmospheres (comae) originate primarily from (1) outgassing by the nucleus, (2) sublimation of icy grains in the near-nucleus coma, and (3) coma (ph…

astro-ph.EP2022★ 9 cited

Water Ortho-to-Para ratio in the coma of comet 67P/Churyumov-Gerasimenko

Y. -C. Cheng, D. Bockelée-Morvan, M. Roos-Serote +9

Abundance ratios of the nuclear-spin isomers of HO and NH have been measured in about two dozen comets, with a mean value corresponding to a nuclear-spin temperature of $\s…

astro-ph.EP2021★ 1 cited

Spatial Distribution of Ultraviolet Emission from Cometary Activity at 67P/Churyumov-Gerasimenko

John W. Noonan, Dominique Bockelée-Morvan, Paul D. Feldman +16

The Alice ultraviolet spectrograph on board the \textit{Rosetta} orbiter provided the first near-nucleus ultraviolet observations of a cometary coma from arrival at comet 67P/Chury…

astro-ph.EP2021★ 8 cited

Analysis of Hybrid Gas-Dust Outbursts Observed at 67P/Churyumov-Gerasimenko

John W. Noonan, Giovanna Rinaldi, Paul D. Feldman +14

Cometary outbursts offer a valuable window into the composition of comet nuclei with their forceful ejection of dust and volatiles in explosive events, revealing the interior compo…

astro-ph.EP2021

Characterization of Thermal Infrared Dust Emission and Refinements to the Nucleus Properties of Centaur 29P/Schwassmann-Wachmann 1

Charles A. Schambeau, Yanga R. Fernandez, Nalin H. Samarasinha +4

We present analyses of Spitzer observations of 29P/Schwassmann-Wachmann 1 using 16 m IRS "blue" peak-up (PU) and 24 m and 70 m MIPS images obtained on UT 2003 November 23…