Article (Scientific journals)
The Herschel-SPIRE submillimetre spectrum of Mars
Swinyard, B. M.; Hartogh, P.; Sidher, S. et al.
2010In Astronomy and Astrophysics, 518, p. 151
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Keywords :
instrumentation: spectrographs; space vehicles: instruments; planets and satellites: atmospheres; planets and satellites: individual: Mars; planets and satellites: composition
Abstract :
[en] We have obtained the first continuous disk averaged spectrum of Mars from 450 to 1550 Ghz using the Herschel-SPIRE Fourier-transform spectrometer. The spectrum was obtained at a constant resolution of 1.4 GHz across the whole band. The flux from the planet is such that the instrument was operated in “bright source” mode to prevent saturation of the detectors. This was the first successful use of this mode and in this work we describe the method used for observing Mars together with a detailed discussion of the data reduction techniques required to calibrate the spectrum. We discuss the calibration accuracy obtained and describe the first comparison with surface and atmospheric models. In addition to a direct photometric measurement of the planet the spectrum contains the characteristic transitions of [SUP]12[/SUP]CO from J 5-4 to J 13-12 as well as numerous H[SUB]2[/SUB]O transitions. Together these allow the comparison to global atmospheric models allowing the mean mixing ratios of water and [SUP]12[/SUP]CO to be investigated. We find that it is possible to match the observed depth of the absorption features in the spectrum with a fixed water mixing ratio of 1×10[SUP]-4[/SUP] and a [SUP]12[/SUP]CO mixing ratio of 9×10[SUP]-4[/SUP]. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Swinyard, B. M.;  STFC Rutherford Appleton Laboratory, Harwell Innovation Campus, Didcot, OX11 0QX, UK
Hartogh, P.;  Max Planck Institute for Solar System Research, Katlenburg-Lindau 37191, Germany
Sidher, S.;  STFC Rutherford Appleton Laboratory, Harwell Innovation Campus, Didcot, OX11 0QX, UK
Fulton, T.;  Bluesky Spectroscopy, Lethbridge, Canada
Lellouch, Emmanuel;  LESIA, Observatoire de Paris, France
Jarchow, C.;  Max Planck Institute for Solar System Research, Katlenburg-Lindau 37191, Germany
Griffin, M. J.;  School of Physics and Astronomy, Cardiff University, Cardiff, UK
Moreno, R.;  LESIA, Observatoire de Paris, France
Sagawa, H.;  Max Planck Institute for Solar System Research, Katlenburg-Lindau 37191, Germany
Portyankina, G.;  Physikalisches Institut, University of Bern, Switzerland
Blecka, M.;  Space Research Centre, Polish Academy of Sciences, Warsaw, Poland
Banaszkiewicz, M.;  Space Research Centre, Polish Academy of Sciences, Warsaw, Poland
Bockelee-Morvan, D.;  LESIA, Observatoire de Paris, France
Crovisier, J.;  LESIA, Observatoire de Paris, France
Encrenaz, T.;  LERMA, Observatoire de Paris, France
Kueppers, M.;  European Space Astronomy Centre, European Space Agency, Madrid, Spain
Lara, L.;  Instituto de Astrofisica de Andalucia, Granada, Spain
Lis, D.;  California Institute of Technology, Pasadena, USA
Medvedev, A.;  Max Planck Institute for Solar System Research, Katlenburg-Lindau 37191, Germany
Rengel, M.;  Max Planck Institute for Solar System Research, Katlenburg-Lindau 37191, Germany
Szutowicz, S.;  Space Research Centre, Polish Academy of Sciences, Warsaw, Poland
Vandenbussche, B.;  Instituut for Sterrenkunde, Katholieke Universiteit Leuven, Belgium
Bensch, F.;  Argelander Institute for Astronomy, University of Bonn, Germany
Bergin, E.;  Astronomy Department, University of Michigan, USA
Billebaud, F.;  Université de Bordeaux, Laboratoire d'Astrophysique de Bordeaux, France
Biver, N.;  LESIA, Observatoire de Paris, France
Blake, G.;  California Institute of Technology, Pasadena, USA
Blommaert, J.;  Instituut for Sterrenkunde, Katholieke Universiteit Leuven, Belgium
de Val-Borro, M.;  Max Planck Institute for Solar System Research, Katlenburg-Lindau 37191, Germany
Cernicharo, J.;  Laboratory of Molecular Astrophysics, CAB-CSIC. INTA, Madrid, Spain
Cavalie, T.;  Max Planck Institute for Solar System Research, Katlenburg-Lindau 37191, Germany
Courtin, R.;  LESIA, Observatoire de Paris, France
Davis, G.;  Joint Astronomy Center, Hilo, USA
Decin, L.;  Instituut for Sterrenkunde, Katholieke Universiteit Leuven, Belgium
Encrenaz, P.;  LERMA, Observatoire de Paris, France
de Graauw, T.;  Joint ALMA Observatory, Chile
Jehin, Emmanuel  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image
Kidger, M.;  European Space Astronomy Centre, European Space Agency, Madrid, Spain
Leeks, S.;  STFC Rutherford Appleton Laboratory, Harwell Innovation Campus, Didcot, OX11 0QX, UK
Orton, G.;  Jet Propulsion Laboratory, California Institute of Technology, Pasadena, USA
Naylor, D.;  Department of Physics and Astronomy, University of Lethbridge, Canada
Schieder, R.;  1st Physics Institute, University of Cologne, Germany
Stam, D.;  SRON, Netherlands Institute for Space Research, Netherlands
Thomas, N.;  Physikalisches Institut, University of Bern, Switzerland
Verdugo, E.;  European Space Astronomy Centre, European Space Agency, Madrid, Spain
Waelkens, C.;  Instituut for Sterrenkunde, Katholieke Universiteit Leuven, Belgium
Walker, H.;  STFC Rutherford Appleton Laboratory, Harwell Innovation Campus, Didcot, OX11 0QX, UK
More authors (37 more) Less
Language :
English
Title :
The Herschel-SPIRE submillimetre spectrum of Mars
Publication date :
01 July 2010
Journal title :
Astronomy and Astrophysics
ISSN :
0004-6361
eISSN :
1432-0746
Publisher :
EDP Sciences, Les Ulis, France
Volume :
518
Pages :
L151
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
http://de.arxiv.org/abs/1005.4579
Available on ORBi :
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