Interpretation of VIRTIS/Rosetta surface spectra of comet 67P from laboratory reflectance measurements of cometary analogues, including iron sulfides
Batiste Rousseau
(1, 2)
,
Stéphane Erard
(1, 2)
,
P. Beck
(3)
,
Éric Quirico
(3)
,
Bernard Schmitt
(3)
,
O. Brissaud
(3)
,
Fabrizio Capaccioni
(4)
,
Gianrico Filacchione
(4)
,
Dominique Bockelée-Morvan
(1, 2)
,
Cédric Leyrat
(1, 2)
,
Mauro Ciarniello
(4)
,
Andrea Raponi
(4)
,
David Kappel
(5)
,
Gabriele Arnold
(5)
,
Lyuba V. Moroz
(5)
1
LESIA -
Laboratoire d'études spatiales et d'instrumentation en astrophysique
2 Pôle Planétologie du LESIA
3 IPAG - Institut de Planétologie et d'Astrophysique de Grenoble
4 IAPS - Istituto di Astrofisica e Planetologia Spaziali, INAF
5 Institute of Planetary Research, Deutsches Zentrum für Luft- und Raumfahrt (DLR)
2 Pôle Planétologie du LESIA
3 IPAG - Institut de Planétologie et d'Astrophysique de Grenoble
4 IAPS - Istituto di Astrofisica e Planetologia Spaziali, INAF
5 Institute of Planetary Research, Deutsches Zentrum für Luft- und Raumfahrt (DLR)
P. Beck
- Fonction : Auteur
- PersonId : 756943
- ORCID : 0000-0002-6532-5602
- IdRef : 110404424
Éric Quirico
- Fonction : Auteur
- PersonId : 760482
- ORCID : 0000-0003-2768-0694
- IdRef : 118962604
Résumé
This work provides clues about the interpretation of the surface spectrum of 67P as acquired by VIRTIS/Rosetta imaging-spectrometer. Fine powders (<0.4µm) of coal, iron sulphide and silicates have been produced and measured in reflectance. Grain sizes effects, mixing modalities and various compositions have been tested in order to reproduce the VIRTIS spectrum.