A Herschel Study of D/H in Water in the Jupiter-family Comet 45P/Honda-Mrkos-Pajdušáková and Prospects for D/H Measurements with CCAT

Lis, D. C.; Biver, N.; Bockelée-Morvan, D.; Hartogh, P.; Bergin, E. A.; Blake, G. A.; Crovisier, J.; de Val-Borro, M.; Jehin, Emmanuel; Küppers, M.; Manfroid, Jean; Moreno, R.; Rengel, M.; Szutowicz, S.

doi:10.1088/2041-8205/774/1/L3

Reference : A Herschel Study of D/H in Water in the Jupiter-family Comet 45P/Honda-Mrkos-Pajdušák...


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
	To cite this reference:	http://hdl.handle.net/2268/156969

Title :	A Herschel Study of D/H in Water in the Jupiter-family Comet 45P/Honda-Mrkos-Pajdušáková and Prospects for D/H Measurements with CCAT
Language :	English
Author, co-author :	Lis, D. C. [California Institute of Technology, Pasadena, CA 91125, USA ; Visiting professor, LERMA, École Normale Supérieure, Paris, France.;]
	Biver, N. [LESIA, Observatoire de Paris, CNRS, UPMC, Université Paris-Diderot, Meudon, France]
	Bockelée-Morvan, D. [LESIA, Observatoire de Paris, CNRS, UPMC, Université Paris-Diderot, Meudon, France]
	Hartogh, P. [Max-Planck-Institute für Sonnensystemforschung, Katlenburg-Lindau, Germany]
	Bergin, E. A. [Astronomy Department, University of Michigan, Ann Arbor, MI, USA]
	Blake, G. A. [California Institute of Technology, Pasadena, CA 91125, USA]
	Crovisier, J. [LESIA, Observatoire de Paris, CNRS, UPMC, Université Paris-Diderot, Meudon, France]
	de Val-Borro, M. [Max-Planck-Institute für Sonnensystemforschung, Katlenburg-Lindau, Germany; Department of Astrophysical Sciences, Princeton University, Princeton, NJ, USA;]
	Jehin, Emmanuel [Université de Liège - ULiège > > >]
	Küppers, M. [European Space Astronomy Center, Madrid, Spain]
	Manfroid, Jean [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO) >]
	Moreno, R. [LESIA, Observatoire de Paris, CNRS, UPMC, Université Paris-Diderot, Meudon, France]
	Rengel, M. [Max-Planck-Institute für Sonnensystemforschung, Katlenburg-Lindau, Germany]
	Szutowicz, S. [Space Research Centre, Polish Academy of Sciences, Warsaw, Poland )]
Publication date :	1-Sep-2013
Journal title :	Astrophysical Journal. Letters
Volume :	774
Pages :	L3
Peer reviewed :	Yes (verified by ORBi)
Audience :	International
ISSN :	2041-8205
e-ISSN :	2041-8213
Keywords :	[en] comets: general ; comets: individual: 45P/Honda-Mrkos-Pajdušáková ; molecular processes ; submillimeter: planetary systems
Abstract :	[en] We present Herschel observations of water isotopologues in the atmosphere of the Jupiter-family comet 45P/Honda-Mrkos-Pajdušáková. No HDO emission is detected, with a 3σ upper limit of 2.0 × 10[SUP]–4[/SUP] for the D/H ratio. This value is consistent with the earlier Herschel measurement in the Jupiter-family comet 103P/Hartley 2. The canonical value of 3 × 10[SUP]–4[/SUP] measured pre-Herschel in a sample of Oort-cloud comets can be excluded at a 4.5σ level. The observations presented here further confirm that a diversity of D/H ratios exists in the comet population and emphasize the need for additional measurements with future ground-based facilities, such as CCAT, in the post-Herschel era.
Target :	Professionals
Permalink :	http://hdl.handle.net/2268/156969
DOI :	10.1088/2041-8205/774/1/L3
Other URL :	http://adsabs.harvard.edu/abs/2013ApJ...774L...3L
	http://de.arxiv.org/abs/1307.6869

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