Spectrophotometry of the Khonsu region on the comet 67P/Churyumov-Gerasimenko using OSIRIS instrument images
J. D. P. Deshapriya
1
M. A. Barucci
1
S. Fornasier
1
C. Feller
1
P. H. Hasselmann
1
H. Sierks
2
M. R. El-Maarry
3
M. Pajola
4
C. Barbieri
5
Philippe L. Lamy
6
R. Rodrigo
7, 8
Detlef Koschny
9
H. Rickman
10, 11
Jessica Agarwal
2
Michael F. A'Hearn
12
Jean-Loup Bertaux
13
I. Bertini
5
S. Boudreault
2
G. Cremonese
14
V. Da deppo
15
B. J. R. Davidsson
16
S. Debei
17
J. Deller
2
M. De cecco
18
M. Fulle
19
A. Gicquel
2
Olivier Groussin
6
P. J. Gutierrez
20
C. Güttler
2
M. Hofmann
2
S. F. Hviid
21
W. Ip
22
L. Jorda
6
H.U. Keller
23
J. Knollenberg
21
R. Kramm
2
Ekkehard Kührt
21
M. Küppers
24
L. Lara
20
M. Lazzarin
5
J.J. Lopez Moreno
20
F. Marzari
5
S. Mottola
21
G. Naletto
25, 26, 15
N. Oklay
2
D. Perna
1
A. Pommerol
3
N. Thomas
3
C. Tubiana
2
Jean-Baptiste Vincent
2
H. Rickman 10, 11
Author
Jessica Agarwal 2
Author
Michael F. A'Hearn 12
Author
Jean-Loup Bertaux 13
Mail :
Author
C. Tubiana 2
Author
Jean-Baptiste Vincent 2
Author
1
LESIA - Laboratoire d'études spatiales et d'instrumentation en astrophysique (5, place Jules Janssen 92190 MEUDON - France)
- CNRS - Centre National de la Recherche Scientifique : UMR8109 (France)
- UPD7 - Université Paris Diderot - Paris 7 (5 rue Thomas-Mann - 75205 Paris cedex 13 - France)
- Observatoire de Paris (61 Av de l'Observatoire 75014 PARIS - France)
- PSL - PSL Research University (France)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- UPMC - Université Pierre et Marie Curie - Paris 6 (4 place Jussieu - 75005 Paris - France)
2
MPS - Max-Planck-Institut für Sonnensystemforschung (Göttingen, Allemagne - Germany)
- Max-Planck-Gesellschaft (Jägerstrasse, 10-11, D-10117 Berlin - Germany)
3
Physikalisches Institut [Bern] (Sidlerstr. 5, 3012 Bern - Switzerland)
- Universität Bern [Bern] (Hochschulstrasse 4 - CH-3012 Bern - Switzerland)
4
ARC - NASA Ames Research Center (Moffett Field, California 94035 - United States)
5
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)
6
LAM - Laboratoire d'Astrophysique de Marseille (Pôle de l'Étoile Site de Château-Gombert 38, rue Frédéric Joliot-Curie 13388 Marseille cedex 13 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7326 (France)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- AMU - Aix Marseille Université : UMR7326 (Aix-Marseille Université Jardins du Pharo 58 Boulevard Charles Livon 13284 Marseille cedex 7 - France)
- CNES - Centre National d'Études Spatiales [Toulouse] : UMR7326 (18 avenue Edouard Belin 31401 Toulouse - France)
7
CAB - Centro de Astrobiologia [Madrid] (28850 Torrejón de Ardoz, Madrid - Spain)
- CSIC - Consejo Superior de Investigaciones Científicas [Spain] (Serrano 117, 28006 Madrid - Spain)
- INTA - Instituto Nacional de Técnica Aeroespacial ( Torrejón de Ardoz, Madrid - Spain)
8
ISSI - International Space Science Institute [Bern] (Hallerstrasse 6 3012 Bern - Switzerland)
9
ESTEC - European Space Research and Technology Centre (Keplerlaan 1, 2201 Noordwijk - Netherlands)
- ESA - European Space Agency (France)
10
CBK - Space Research Centre of Polish Academy of Sciences (Bartycka 18A, 00-716 Warsaw, Poland - Poland)
- PAN - Polska Akademia Nauk (Poland)
11
Department of Physics and Astronomy [Uppsala] (751 05 Uppsala - Sweden)
- Uppsala University (Box 256, SE-751 05 Uppsala - Sweden)
12
Department of Astronomy [College Park] (United States)
- University of Maryland [College Park] (College Park, MD 20742 - United States)
- University of Maryland System (United States)
13
IMPEC - LATMOS (France)
- LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales (11 boulevard d'Alembert
Quartier des Garennes
78280 - Guyancourt - France)
- UVSQ - Université de Versailles Saint-Quentin-en-Yvelines : UMR8190 (55 avenue de Paris - 78035 Versailles cedex - France)
- UPMC - Université Pierre et Marie Curie - Paris 6 : UMR8190 (4 place Jussieu - 75005 Paris - France)
- INSU - CNRS - Institut national des sciences de l'Univers : UMR8190 (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR8190 (France)
14
OAPD - INAF - Osservatorio Astronomico di Padova (Vicolo dell'Osservatorio, 5, 35122 Padova - Italy)
- INAF - Istituto Nazionale di Astrofisica (Viale del Parco Mellini 84, 00136 Roma - Italy)
15
IFN - CNR Institute for Photonics and Nanotechnologies (Italy)
- CNR - Consiglio Nazionale delle Ricerche [Roma] (Piazzale Aldo Moro,7 - 00185, Roma - Italy)
16
JPL - Jet Propulsion Laboratory (4800 Oak Grove Drive, Pasadena, CA 91109-8099, USA - United States)
- NASA (www.nasa.gov - United States)
- CALTECH - California Institute of Technology (1200 East California Blvd, Pasadena, California 91125 - United States)
17
Department of Industrial Engineering [Padova] (Dipartimento di Ingegneria Industriale, Via Gradenigo, 6/a, 35131 Padova - Italy)
- Universita degli Studi di Padova (Via 8 Febbraio 2, 35122 Padova - Italy)
18
UNITN - Università degli Studi di Trento (via Calepina, 14 - I-38122 Trento - Italy)
19
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)
20
IAA - Instituto de Astrofísica de Andalucía (Granada E-18008 - Spain)
- CSIC - Consejo Superior de Investigaciones Científicas [Spain] (Serrano 117, 28006 Madrid - Spain)
21
DLR Institut für Planetenforschung (Berlin - Germany)
- DLR - Deutsches Zentrum für Luft- und Raumfahrt [Berlin] (Rutherfordstraße 2 12489 Berlin - Germany)
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
IGEP - Institut für Geophysik und Extraterrestrische Physik [Braunschweig] (Mendelssohnstr. 3, D-38106 Braunschweig - Germany)
- Technische Universität Braunschweig [Braunschweig] (38092 Braunschweig - Germany)
24
Operations Department (ESAC) (PO Box 78, 28691 Villanueva de la Canada, Madrid - Spain)
- ESAC - European Space Astronomy Centre (Camino bajo del Castillo, s/n, Urbanización Villafranca del Castillo,, Villanueva de la Cañada, E-28692 Madrid
- Spain)
- ESA - European Space Agency (France)
25
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)
26
CISAS - Centro di Ateneo di Studi e Attività Spaziali “Giuseppe Colombo” (Via Venezia 15, 35131 Padova, Italie - Italy)
- Universita degli Studi di Padova (Via 8 Febbraio 2, 35122 Padova - Italy)
Abstract : Our work focuses on the spectrophotometric analysis of selected terrain and bright patches in the Khonsu region on the comet 67P/Churyumov-Gerasimenko. Despite the variety of geological features, their spectrophotometric properties appear to indicate a similar composition. It is noticeable that the smooth areas in Khonsu possess similar spectrophotometric behaviour to some other regions of the comet. We observed bright patches on Khonsu with an estimation of > 40% of normal albedo and suggest that they are associated to H2O ice. One of the studied bright patches has been observed to exist on the surface for more than 5 months without a major decay of its size, implying the existence of potential subsurface icy layers. Its location may be correlated with a cometary outburst during the perihelion passage of the comet in August 2015, and we interpret it to have triggered the surface modifications necessary to unearth the stratified icy layers beneath the surface. A boulder analysis on Khonsu leads to a power-law index of -3.1 +0.2/-0.3 suggesting a boulder formation, shaped by varying geological processes for different morphological units.
Document type :
Journal articles
Complete list of metadatas
https://hal-insu.archives-ouvertes.fr/insu-01376715
Contributor : Catherine Cardon <>
Submitted on : Wednesday, October 5, 2016 - 2:56:29 PM
Last modification on : Friday, March 27, 2020 - 3:32:41 AM
Contributor : Catherine Cardon <>
Submitted on : Wednesday, October 5, 2016 - 2:56:29 PM
Last modification on : Friday, March 27, 2020 - 3:32:41 AM
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Identifiers
- HAL Id : insu-01376715, version 1
- BIBCODE : 2016MNRAS.462S.274D
- DOI : 10.1093/mnras/stw2530
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INSU | CNRS | LESIA | OBSPM | UPMC | OSU-INSTITUT-PYTHEAS | UVSQ | LAM | LATMOS | UNIV-AMU | PSL | UNIV-PARIS-SACLAY | SORBONNE-UNIVERSITE | UNIV-PARIS7 | USPC | SU-SCIENCES
Citation
J. D. P. Deshapriya, M. A. Barucci, S. Fornasier, C. Feller, P. H. Hasselmann, et al.. Spectrophotometry of the Khonsu region on the comet 67P/Churyumov-Gerasimenko using OSIRIS instrument images. Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2016, 462 (Suppl. 1), pp.S274-S286. ⟨10.1093/mnras/stw2530⟩. ⟨insu-01376715⟩
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