Journal articles
Detection of exposed H2O ice on the nucleus of comet 67P/Churyumov-Gerasimenko as observed by Rosetta OSIRIS and VIRTIS instruments
M. Antonella Barucci
1
G. Filacchione
2
Sonia Fornasier
1
A. Raponi
2
J. D.P. Deshapriya
1
F. Tosi
2
C. Feller
1
M. Ciarniello
2
Holger Sierks
3
F. Capaccioni
2
A. Pommerol
4
Matteo Massironi
5
Nilda Oklay
3
F. Merlin
1
Jean-Baptiste Vincent
3
M. Fulchignoni
1
A. Guilbert-Lepoutre
6
D. Perna
1
M.T. Capria
2
P. H. Hasselmann
1
B. Rousseau
1
Cesare Barbieri
7
D. Bockelée-Morvan
1
Philippe L. Lamy
8
C. de Sanctis
2
Rafael Rodrigo
9
S. Erard
2
Detlef Koschny
10
C. Leyrat
1
H. Rickman
11, 12
P. Drossart
1
Horst U. Keller
13
Michael F. A'Hearn
14
G. Arnold
15
Jean-Loup Bertaux
16
Ivano Bertini
17
P. Cerroni
2
Gabriele Cremonese
17
Vania da Deppo
18
Björn J. R. Davidsson
19
Mohamed R. El-Maarry
4
S. Fonti
20
M. Fulle
21
O. Groussin
8
C. Güttler
3
S. F. Hviid
15
W. Ip
22
L. Jorda
8
D. Kappel
15
J. Knollenberg
15
J.-R. Kramm
3
Ekkehard Kührt
15
M. Küppers
23
L. Lara
24
Monica Lazzarin
17
J. J. Lopez Moreno
24
F. Mancarella
20
F. Marzari
7
S. Mottola
15
Giampiero Naletto
18
Maurizio Pajola
25
E. Palomba
2
E. Quirico
26
B. Schmitt
26
Nicholas Thomas
4
Cécilia Tubiana
3
C. de Sanctis 2
Author
Rafael Rodrigo 9
Author
S. Erard 2
Mail :
Author IdHAL : stephane-erard ORCID : https://orcid.org/0000-0002-9099-8366
Detlef Koschny 10
Author
Michael F. A'Hearn 14
Author
G. Arnold 15
Author
Jean-Loup Bertaux 16
Mail :
Author
Ivano Bertini 17
Author
P. Cerroni 2
Author
Gabriele Cremonese 17
Author
Vania da Deppo 18
Author
Björn J. R. Davidsson 19
Author
Nicholas Thomas 4
Author
Cécilia Tubiana 3
Author
1
LESIA - Laboratoire d'études spatiales et d'instrumentation en astrophysique (5, place Jules Janssen 92190 MEUDON - France)
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2
IAPS - Istituto di Astrofisica e Planetologia Spaziali - INAF (Via del Fosso del Cavaliere, 100 00133 Rome - Italy)
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3
MPS - Max-Planck-Institut für Sonnensystemforschung (Göttingen, Allemagne - Germany)
- Max-Planck-Gesellschaft (Jägerstrasse, 10-11, D-10117 Berlin - Germany)
4
Physikalisches Institut [Bern] (Sidlerstr. 5, 3012 Bern - Switzerland)
- Universität Bern [Bern] (Hochschulstrasse 4 - CH-3012 Bern - Switzerland)
5
Dipartimento di Geoscienze [Padova] (Via G. Gradenigo 6,
35131 Padova - Italy)
- Universita degli Studi di Padova (Via 8 Febbraio 2, 35122 Padova - Italy)
6
UTINAM - Univers, Transport, Interfaces, Nanostructures, Atmosphère et environnement, Molécules (UMR 6213) (16, route de Gray 25030 BESANCON CEDEX France - France)
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7
Dipartimento di Fisica e Astronomia "Galileo Galilei" (via Marzolo 8, I-35131 Padova - Italy)
- Universita degli Studi di Padova (Via 8 Febbraio 2, 35122 Padova - Italy)
8
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- CNRS - Centre National de la Recherche Scientifique : UMR7326 (France)
9
ISSI - International Space Science Institute [Bern] (Hallerstrasse 6 3012 Bern - Switzerland)
10
ESTEC - European Space Research and Technology Centre (Keplerlaan 1, 2201 Noordwijk - Netherlands)
- ESA - European Space Agency (France)
11
CBK - Space Research Centre of Polish Academy of Sciences (Bartycka 18A, 00-716 Warsaw, Poland - Poland)
- PAN - Polska Akademia Nauk (Poland)
12
Department of Physics and Astronomy [Uppsala] (751 05 Uppsala - Sweden)
- Uppsala University (Box 256, SE-751 05 Uppsala - Sweden)
13
IGEP - Institut für Geophysik und Extraterrestrische Physik [Braunschweig] (Mendelssohnstr. 3, D-38106 Braunschweig - Germany)
- Technische Universität Braunschweig [Braunschweig] (38092 Braunschweig - Germany)
14
Department of Astronomy [College Park] (United States)
- University of Maryland [College Park] (College Park, MD 20742 - United States)
- University of Maryland System (United States)
15
DLR Institut für Planetenforschung (Berlin - Germany)
- DLR - Deutsches Zentrum für Luft- und Raumfahrt [Berlin] (Rutherfordstraße 2 12489 Berlin - Germany)
16
IMPEC - LATMOS (France)
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17
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- INAF - Istituto Nazionale di Astrofisica (Viale del Parco Mellini 84, 00136 Roma - Italy)
18
DEI - Department of Information Engineering [Padova] (Via Gradenigo, 6/b,
35131 Padova - Italy)
- Universita degli Studi di Padova (Via 8 Febbraio 2, 35122 Padova - Italy)
19
JPL - Jet Propulsion Laboratory (4800 Oak Grove Drive, Pasadena, CA 91109-8099, USA - United States)
- CALTECH - California Institute of Technology (1200 East California Blvd, Pasadena, California 91125 - United States)
- NASA (www.nasa.gov - United States)
20
Department of Physics [Lecce] (Via Arnesano, 73100 Lecce - Italy)
- Università del Salento [Lecce] (Piazza Tancredi 7, 73100 Lecce LE - Italy)
21
OAT - INAF - Osservatorio Astronomico di Trieste (Via G.B. Tiepolo 11 34143 TRIESTE, Italy - Italy)
- INAF - Istituto Nazionale di Astrofisica (Viale del Parco Mellini 84, 00136 Roma - Italy)
22
Institute of Space Science [Taiwan] (Taoyuan City 32001, Taiwan - Taiwan)
- NCU - National Central University [Taiwan] (300, Zhongda Road, Zhongli District, Taoyuan City, Taïwan 320 - Taiwan)
23
Operations Department (ESAC) (PO Box 78, 28691 Villanueva de la Canada, Madrid - Spain)
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24
IAA - Instituto de Astrofísica de Andalucía (Granada E-18008 - Spain)
- CSIC - Consejo Superior de Investigaciones Científicas [Spain] (Serrano 117, 28006 Madrid - Spain)
25
ARC - NASA Ames Research Center (Moffett Field, California 94035 - United States)
26
IPAG - Institut de Planétologie et d'Astrophysique de Grenoble (414, Rue de la Piscine BP 53 38041 Grenoble Cedex 9 - France)
- OSUG - Observatoire des Sciences de l'Univers de Grenoble (414 Rue de la piscine - BP 53 38041 GRENOBLE CEDEX 9 - France)
- USMB [Université de Savoie] [Université de Chambéry] - Université Savoie Mont Blanc (27, rue Marcoz - 73000 Chambéry - France)
- Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology (46 avenue Félix Viallet 38031 Grenoble Cedex 1 - France)
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Abstract : Since the orbital insertion of the Rosetta spacecraft, comet 67P/Churyumov-Gerasimenko (67P/C-G) has been mapped by OSIRIS camera and VIRTIS spectro-imager, producing a huge quantity of images and spectra of the comet’s nucleus.
The aim of this work is to search for the presence of H2O on the nucleus which, in general, appears very dark and rich in dehydrated organic material. After selecting images of the bright spots which could be good candidates to search for H2O ice, taken at high resolution by OSIRIS, we check for spectral cubes of the selected coordinates to identify these spots observed by VIRTIS. Methods. The selected OSIRIS images were processed with the OSIRIS standard pipeline and corrected for the illumination condi- tions for each pixel using the Lommel-Seeliger disk law. The spots with higher I/F were selected and then analysed spectrophotomet- rically and compared with the surrounding area. We selected 13 spots as good targets to be analysed by VIRTIS to search for the 2 μm absorption band of water ice in the VIRTIS spectral cubes.
Results. Out of the 13 selected bright spots, eight of them present positive H2O ice detection on the VIRTIS data. A spectral analysis was performed and the approximate temperature of each spot was computed. The H2O ice content was confirmed by modeling the spectra with mixing (areal and intimate) of H2O ice and dark terrain, using Hapke’s radiative transfer modeling. We also present a detailed analysis of the detected spots.
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https://hal-insu.archives-ouvertes.fr/insu-01371174
Contributor : Catherine Cardon <>
Submitted on : Saturday, September 24, 2016 - 2:53:59 PM
Last modification on : Monday, May 18, 2020 - 2:33:21 PM
Contributor : Catherine Cardon <>
Submitted on : Saturday, September 24, 2016 - 2:53:59 PM
Last modification on : Monday, May 18, 2020 - 2:33:21 PM
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Identifiers
- HAL Id : insu-01371174, version 1
- ARXIV : 1609.00551
- BIBCODE : 2016A&A...595A.102B
- DOI : 10.1051/0004-6361/201628764
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Citation
M. Antonella Barucci, G. Filacchione, Sonia Fornasier, A. Raponi, J. D.P. Deshapriya, et al.. Detection of exposed H2O ice on the nucleus of comet 67P/Churyumov-Gerasimenko as observed by Rosetta OSIRIS and VIRTIS instruments. Astronomy and Astrophysics - A&A, EDP Sciences, 2016, 595, A102 (13 p.). ⟨10.1051/0004-6361/201628764⟩. ⟨insu-01371174⟩
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