Reference : Ultraviolet observations of the hydrogen coma of comet C/2013 A1 (Siding Spring) by M...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/190825
Ultraviolet observations of the hydrogen coma of comet C/2013 A1 (Siding Spring) by MAVEN/IUVS
English
Crismani, M. M. J. [Laboratory for Atmospheric and Space Sciences University of Colorado Boulder Boulder, Colorado USA]
Schneider, N. M. [Laboratory for Atmospheric and Space Sciences University of Colorado Boulder Boulder, Colorado USA]
Deighan, J. I. [Laboratory for Atmospheric and Space Sciences University of Colorado Boulder Boulder, Colorado USA]
Stewart, A. I. F. [Laboratory for Atmospheric and Space Sciences University of Colorado Boulder Boulder, Colorado USA]
Combi, M. [Department of Atmospheric, Oceanic, and Space Sciences University of Michigan Ann Arbor, Michigan USA]
Chaffin, M. S. [Laboratory for Atmospheric and Space Sciences University of Colorado Boulder Boulder, Colorado USA]
Fougere, N. [Department of Atmospheric, Oceanic, and Space Sciences University of Michigan Ann Arbor, Michigan USA]
Jain, S. K. [Laboratory for Atmospheric and Space Sciences University of Colorado Boulder Boulder, Colorado USA]
Stiepen, Arnaud mailto [Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) >]
Yelle, R. V. [Lunar and Planetary Laboratory University of Arizona Tucson, Arizona USA]
Mcclintock, W. E. [Laboratory for Atmospheric and Space Sciences University of Colorado Boulder Boulder, Colorado USA]
Clarke, J. T. [Center for Space Physics Boston University Boston, Massachusetts USA]
Holsclaw, G. M. [Laboratory for Atmospheric and Space Sciences University of Colorado Boulder Boulder, Colorado USA]
Montmessin, F. [LATMOS/IPSL Guyancourt France]
Jakosky, B. M. [Laboratory for Atmospheric and Space Sciences University of Colorado Boulder Boulder, Colorado USA]
2015
Geophysical Research Letters
Blackwell Publishing Ltd
Yes (verified by ORBi)
International
0094-8276
1944-8007
[en] Comet Siding Spring ; Mars upper atmosphere ; Forecasting ; Molecules ; Orbits ; Reservoirs (water) ; Detectability ; Fluences ; Mars atmosphere ; Volatile evolution ; Water production rate ; Upper atmosphere
[en] We used the Imaging Ultraviolet Spectrograph (IUVS) aboard the Mars Atmosphere and Volatile EvolutioN (MAVEN) orbiting spacecraft to construct images of the hydrogen coma of comet C/2013 A1 (Siding Spring) days before its close encounter with Mars. We obtain a water production rate of 1.1 ± 0.5 × 1028 molecules/s and determine the total impacting fluence of atoms and molecules corresponding to the photodissociation of water and its daughter species to be 2.4 ± 1.2 × 104 kg. We use these observations to confirm predictions that the mass of delivered hydrogen is comparable to the existing reservoir above 150 km. Furthermore, we reconcile disparity between observations and predictions about the detectability of the hydrogen perturbation and thermospheric response. © 2015. American Geophysical Union. All Rights Reserved.
http://hdl.handle.net/2268/190825
10.1002/2015GL065290

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