Characterization of OSIRIS NAC filters for the interpretation of multispectral data of comet 67P/Churyumov-Gerasimenko
Nilda Oklay
(1)
,
Jean-Baptiste Vincent
(1)
,
Holger Sierks
(1)
,
Sébastien Besse
(2)
,
Maurizio Pajola
(3)
,
Ivano Bertini
(3)
,
Hans Rickman
(4, 5)
,
Fiorangela La Forgia
(6)
,
Antonella M. Barucci
(7)
,
Sonia Fornasier
(7)
,
Cesare Barbieri
(3, 6)
,
Detlef Koschny
(2)
,
Philippe Lamy
(8)
,
Rafael Rodrigo
(9, 10)
,
Jessica Agarwal
(1)
,
Michael F. A'Hearn
(11)
,
Jean-Loup Bertaux
(12)
,
Gabriele Cremonese
(13)
,
Vania da Deppo
(14)
,
Björn Davidsson
(4)
,
Stefano Debei
(15)
,
Mariolino de Cecco
(16)
,
Marco Fulle
(17)
,
Olivier Groussin
(8)
,
Pedro J. Gutiérrez
(18)
,
Carsten Güttler
(1)
,
Stubbe F. Hviid
(19)
,
Wing-Huen Ip
(20)
,
Laurent Jorda
(8)
,
Horst U. Keller
(21)
,
Jörg Knollenberg
(19)
,
J.-Rainer Kramm
(1)
,
Ekkehard Kührt
(19)
,
Michael Küppers
(22)
,
Luisa M. Lara
(18)
,
Monica Lazzarin
(6)
,
Josè J. Lopez Moreno
(18)
,
Francesco Marzari
(6)
,
Harald Michalik
(23)
,
Giampiero Naletto
(14, 3, 24)
,
Nicholas Thomas
(25)
,
Cécilia Tubiana
(1)
1
MPS -
Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research
2 RSSD - Research and Scientific Support Department, ESTEC
3 CISAS - Centro di Ateneo di Studi e Attività Spaziali “Giuseppe Colombo”
4 Department of Physics and Astronomy [Uppsala]
5 CBK - Space Research Centre of Polish Academy of Sciences
6 Dipartimento di Fisica e Astronomia "Galileo Galilei"
7 LESIA - Laboratoire d'études spatiales et d'instrumentation en astrophysique
8 LAM - Laboratoire d'Astrophysique de Marseille
9 CAB - Centro de Astrobiologia [Madrid]
10 ISSI - International Space Science Institute [Bern]
11 Department of Astronomy [College Park]
12 PLANETO - LATMOS
13 OAPD - INAF - Osservatorio Astronomico di Padova
14 IFN - CNR Institute for Photonics and Nanotechnologies
15 Department of Industrial Engineering [Padova]
16 UNITN - Università degli Studi di Trento = University of Trento
17 OAT - INAF - Osservatorio Astronomico di Trieste
18 IAA - Instituto de Astrofísica de Andalucía
19 DLR Institut für Planetenforschung
20 Institute of Space Science [Taiwan]
21 IGEP - Institut für Geophysik und Extraterrestrische Physik [Braunschweig]
22 ESAC - European Space Astronomy Centre
23 Institut für Datentechnik und Kommunikationsnetze
24 DEI - Department of Information Engineering [Padova]
25 Physikalisches Institut [Bern]
2 RSSD - Research and Scientific Support Department, ESTEC
3 CISAS - Centro di Ateneo di Studi e Attività Spaziali “Giuseppe Colombo”
4 Department of Physics and Astronomy [Uppsala]
5 CBK - Space Research Centre of Polish Academy of Sciences
6 Dipartimento di Fisica e Astronomia "Galileo Galilei"
7 LESIA - Laboratoire d'études spatiales et d'instrumentation en astrophysique
8 LAM - Laboratoire d'Astrophysique de Marseille
9 CAB - Centro de Astrobiologia [Madrid]
10 ISSI - International Space Science Institute [Bern]
11 Department of Astronomy [College Park]
12 PLANETO - LATMOS
13 OAPD - INAF - Osservatorio Astronomico di Padova
14 IFN - CNR Institute for Photonics and Nanotechnologies
15 Department of Industrial Engineering [Padova]
16 UNITN - Università degli Studi di Trento = University of Trento
17 OAT - INAF - Osservatorio Astronomico di Trieste
18 IAA - Instituto de Astrofísica de Andalucía
19 DLR Institut für Planetenforschung
20 Institute of Space Science [Taiwan]
21 IGEP - Institut für Geophysik und Extraterrestrische Physik [Braunschweig]
22 ESAC - European Space Astronomy Centre
23 Institut für Datentechnik und Kommunikationsnetze
24 DEI - Department of Information Engineering [Padova]
25 Physikalisches Institut [Bern]
Nilda Oklay
- Fonction : Auteur
- PersonId : 976656
Jean-Baptiste Vincent
- Fonction : Auteur
- PersonId : 992874
Maurizio Pajola
- Fonction : Auteur
- PersonId : 767226
- ORCID : 0000-0002-3144-1277
Cesare Barbieri
- Fonction : Auteur
- PersonId : 757032
- ORCID : 0000-0002-6257-9076
Vania da Deppo
- Fonction : Auteur
- PersonId : 763247
- ORCID : 0000-0001-6273-8738
Wing-Huen Ip
- Fonction : Auteur
- PersonId : 770404
- ORCID : 0000-0001-5368-386X
Laurent Jorda
- Fonction : Auteur
- PersonId : 746464
- IdHAL : laurent-jorda
- ORCID : 0000-0001-8735-3308
- IdRef : 180975161
Michael Küppers
- Fonction : Auteur
- PersonId : 757030
- ORCID : 0000-0002-5666-8582
Résumé
We interpret multicolor data from OSIRIS NAC for the remote-sensing exploration of comet 67P/Churyumov-Gerasimenko. We determine the most meaningful definition of color maps for the characterization of surface variegation with filters available on OSIRIS NAC. We analyzed laboratory spectra of selected minerals and olivine-pyroxene mixtures seen through OSIRIS NAC filters, with spectral methods existing in the literature: reflectance ratios, minimum band wavelength, spectral slopes, band tilt, band curvature, and visible tilt. We emphasize the importance of reflectance ratios and particularly the relation of visible tilt vs. band tilt. This technique provides a reliable diagnostic of the presence of silicates. Color maps constructed by red-green-blue colors defined with the green, orange, red, IR, and Fe2O3 filters let us define regions that may significantly differ in composition.
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