131 citations · 569 across the 18 of their papers we have counts for
15 papers · 1 filter
Coma Volatile Composition and Thermal Physics in Comet C/2022 E3 (ZTF) Measured Near Closest Approach to Earth with NASA-IRTF
Nathan X. Roth, Michael A. DiSanti, Boncho P. Bonev +9
The 2023 perihelion passage of comet C/2022 E3 (ZTF) afforded an opportunity to measure the abundances and spatial distributions of coma volatiles in an Oort cloud comet at high sp…
Chemical composition of comets C/2021 A1 (Leonard) and C/2022 E3 (ZTF) from radio spectroscopy and the abundance of HCOOH and HNCO in comets
N. Biver, D. Bockelee-Morvan, B. Handzlik +14
We present the results of a molecular survey of long period comets C/2021 A1 (Leonard) and C/2022 E3 (ZTF). Comet C/2021 A1 was observed with the IRAM 30-m radio telescope in Novem…
Chemistry of comet atmospheres
Nicolas Biver, Neil Dello Russo, Cyrielle Opitom +1
The composition of cometary ices provides key information on the thermal and chemical properties of the outer parts of the protoplanetary disk where they formed 4.6 Gy ago. This ch…
Operating Spacecraft Around Comets: Evaluation of the Near-Nucleus Environment
C. M. Lisse, M. R. Combi, T. L. Farnham +9
We present a study of the current state of knowledge concerning spacecraft operations and potential hazards while operating near a comet nucleus. Starting from simple calculations…
Rapidly Varying Anisotropic Methanol (CHOH) Production in the Inner Coma of Comet 46P/Wirtanen as Revealed by the ALMA Atacama Compact Array
Nathan X. Roth, Stefanie N. Milam, Martin A. Cordiner +13
We report the detection of CHOH emission in comet 46P/Wirtanen on UT 2018 December 8 and 9 using the Atacama Compact Array (ACA), part of the Atacama Large Millimeter/Submillim…
The Peculiar Volatile Composition of CO-Dominated Comet C/2016 R2 (PanSTARRS)
Adam McKay, Michael DiSanti, Michael Kelley +14
Comet C/2016 R2 (PanSTARRS) has a peculiar volatile composition, with CO being the dominant volatile as opposed to HO and one of the largest N/CO ratios ever observed in a…
A Search for Water Vapor Plumes on Europa using SOFIA
William Sparks, M. Richter, C. deWitt +8
We present mid-infrared SOFIA/EXES spectroscopy of Europa, seeking direct evidence of the presence of water vapor arising from plumes venting from the surface of Europa. We place q…
The extraordinary composition of the "blue comet" C/2016 R2 (PanSTARRS)
N. Biver, D. Bockelée-Morvan, G. Paubert +9
We present a multi-wavelength study of comet C/2016 R2 (PanSTARRS). This comet was observed on 23-24 January 2018 with the IRAM 30m telescope, and in January to March 2018 with the…
Far-ultraviolet Spectroscopy of Recent Comets with the Cosmic Origins Spectrograph on the Hubble Space Telescope
Paul D. Feldman, Harold A. Weaver, Michael F. A'Hearn +2
Since its launch in 1990, the Hubble Space Telescope (HST) has served as a platform with unique capabilities for remote observations of comets in the far-ultraviolet region of the…
Evolution of HO Production in Comet C/2012 S1 (ISON) as Inferred from Forbidden Oxygen and OH Emission
Adam J. McKay, Anita L. Cochran, Michael A. DiSanti +5
We present HO production rates for comet C/2012 S1 (ISON) derived from observations of [OI] and OH emission during its inbound leg, covering a heliocentric distance range of 1.…
The CO2 Abundance in Comets C/2012 K1 (PanSTARRS), C/2012 K5 (LINEAR), and 290P/Jager as Measured with Spitzer
Adam J. McKay, Michael S. P. Kelley, Anita L. Cochran +4
We present analysis of observations of CO2 and OI emission in three comets to measure the CO2 abundance and evaluate the possibility of employing observations of OI emission in com…
Evolution of HO, CO, and CO Production in Comet C/2009 P1 Garradd During the 2011-2012 Apparition
Adam J. McKay, Anita L. Cochran, Michael A. DiSanti +6
We present analysis of high spectral resolution NIR spectra of CO and HO in comet C/2009 P1 (Garradd) taken during its 2011-2012 apparition with the CSHELL instrument on NASA's…
Complex organic molecules in comets C/2012 F6 (Lemmon) and C/2013 R1 (Lovejoy): detection of ethylene glycol and formamide
N. Biver, D. Bockelée-Morvan, V. Debout +9
A spectral survey in the 1 mm wavelength range was undertaken in the long-period comets C/2012 F6 (Lemmon) and C/2013 R1 (Lovejoy) using the 30 m telescope of the Institut de radio…
Ammonia and other parent molecules in comet 10P/Tempel 2 from Herschel/HIFI and ground-based radio observations
N. Biver, J. Crovisier, D. Bockelée-Morvan +13
The Jupiter-family comet 10P/Tempel 2 was observed during its 2010 return with the Herschel Space Observatory. We present here the observation of the (J, K) = (1, 0)-(0, 0) transit…
The Carbon Monoxide Abundance in Comet 103P/Hartley during the EPOXI Flyby
H. A. Weaver, P. D. Feldman, M. F. A'Hearn +2
We report the detection of several emission bands in the CO Fourth Positive Group from comet 103P/Hartley during ultraviolet spectroscopic observations from the Hubble Space Telesc…