Journal articles
The perihelion activity of comet 67P/Churyumov-Gerasimenko as seen by robotic telescopes
Colin Snodgrass
1
Cyrielle Opitom
2
Miguel de Val-Borro
3, 4
Emmanuel Jehin
2
Jean Manfroid
2
Tim Lister
5
Jon Marchant
6
Geraint H. Jones
7, 8
Alan Fitzsimmons
9
Iain A. Steele
6
Robert J. Smith
6
Helen Jermak
10, 6
Thomas Granzer
11
Karen J. Meech
12
Philippe Rousselot
13
Anny Chantal Levasseur-Regourd
14
Colin Snodgrass 1
Author
Cyrielle Opitom 2
Author
Miguel de Val-Borro 3, 4
Author
Emmanuel Jehin 2
Author
Alan Fitzsimmons 9
Author
Iain A. Steele 6
Author
Robert J. Smith 6
Author
Helen Jermak 10, 6
Author
Thomas Granzer 11
Author
Karen J. Meech 12
Author
Philippe Rousselot 13
Author
Anny Chantal Levasseur-Regourd 14
Author
1
School of Physical Sciences [Milton Keynes] (Faculty of Science, Technology, Engineering and Mathematics, The Open University, Walton Hall, Milton Keynes, MK7 6AA - United Kingdom)
- Faculty of Science, Technology, Engineering and Mathematics [Milton Keynes] (The Open university, Milton Keynes MK7 6AA, United Kingdom - United Kingdom)
- OU - The Open University [Milton Keynes] (Walton Hall, Kents Hill, Milton Keynes MK7 6AA - United Kingdom)
2
Institut d'Astrophysique et de Géophysique [Liège] (17 Allée du 6 Août, B-4000 Liège - Belgium)
- Université de Liège (Place du 20-Août, 7 4000 Liège - Belgium)
3
Department of Astrophysical Sciences [Princeton] (4 Ivy Lane, Princeton University, Princeton, NJ 08544 - United States)
- Princeton University (Princeton, NJ 08544 USA - United States)
4
Astrochemistry Laboratory [Greenbelt] (United States)
- GSFC - NASA Goddard Space Flight Center (Greenbelt, MD 20771 - United States)
5
LCO - Las Cumbres Observatory (Goleta, CA 93117, USA - United States)
6
ARI - Astrophysics Research Institute [Liverpool] (146 Brownlow Hill, Liverpool L3 5RF
- United Kingdom)
- LJMU - Liverpool John Moores University (Liverpool, L3 2AJ - United Kingdom)
7
MSSL - Mullard Space Science Laboratory (Holmbury Hill Rd, Dorking RH5 6NT - United Kingdom)
- UCL - University College of London [London] (Gower Street, London WC1E 6BT - United Kingdom)
8
CPS - Centre for Planetary Sciences [UCL/Birkbeck] (Birkbeck, University of London
Malet Street, Bloomsbury
London WC1E 7HX - United Kingdom)
- UCL - University College of London [London] (Gower Street, London WC1E 6BT - United Kingdom)
9
ARC - Astrophysics Research Centre [Belfast] (School of Mathematics and Physics, QUB, Belfast, County Antrim BT7 INN - Ireland)
- QUB - Queen's University [Belfast] (University Road, Belfast, BT7 1NN, Northern Ireland, UK - Ireland)
10
Department of Physics [Lancaster] (Lancaster, UK LA1 4YB - United Kingdom)
- Lancaster University (Lancaster University, Bailrigg, Lancaster, LA1 4YW - United Kingdom)
11
AIP - Leibniz-Institut für Astrophysik Potsdam (An der Sternwarte 16, 14482 Potsdam - Germany)
12
Institute for Astronomy [Honolulu] (2680 Woodlawn Dr., Honolulu, HI 96822, USA - United States)
- UHM - University of Hawai‘i [Mānoa] (1890 East-West Rd, Honolulu, HI 96822 University of Hawaii at Manoa - United States)
13
UTINAM - Univers, Transport, Interfaces, Nanostructures, Atmosphère et environnement, Molécules (UMR 6213) (16, route de Gray 25030 BESANCON CEDEX France - France)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR6213 (France)
- UFC - Université de Franche-Comté (1 rue Goudimel 25030 Besançon cedex - France)
14
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)
Abstract : Around the time of its perihelion passage the observability of 67P/Churyumov-Gerasimenko from Earth was limited to very short windows each morning from any given site, due to the low solar elongation of the comet. The peak in the comet's activity was therefore difficult to observe with conventionally scheduled telescopes, but was possible where service/queue scheduled mode was possible, and with robotic telescopes. We describe the robotic observations that allowed us to measure the total activity of the comet around perihelion, via photometry (dust) and spectroscopy (gas), and compare these results with the measurements at this time by Rosetta's instruments. The peak of activity occurred approximately two weeks after perihelion. The total brightness (dust) largely followed the predictions from Snodgrass et al. (2013), with no significant change in total activity levels from previous apparitions. The CN gas production rate matched previous orbits near perihelion, but appeared to be relatively low later in the year.
Keywords :
67P/Churyumov-Gerasimenko
Comets
Document type :
Journal articles
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https://hal-insu.archives-ouvertes.fr/insu-01367573
Contributor : Catherine Cardon <>
Submitted on : Thursday, June 22, 2017 - 11:20:13 AM
Last modification on : Saturday, December 12, 2020 - 12:10:05 PM
Long-term archiving on: : Saturday, December 16, 2017 - 1:27:14 AM
Contributor : Catherine Cardon <>
Submitted on : Thursday, June 22, 2017 - 11:20:13 AM
Last modification on : Saturday, December 12, 2020 - 12:10:05 PM
Long-term archiving on: : Saturday, December 16, 2017 - 1:27:14 AM
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Snodgrass_S138.pdf
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- HAL Id : insu-01367573, version 1
- DOI : 10.1093/mnras/stw2300
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Citation
Colin Snodgrass, Cyrielle Opitom, Miguel de Val-Borro, Emmanuel Jehin, Jean Manfroid, et al.. The perihelion activity of comet 67P/Churyumov-Gerasimenko as seen by robotic telescopes. Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2016, 462 (Suppl. 1), pp.S138-S145. ⟨10.1093/mnras/stw2300⟩. ⟨insu-01367573⟩
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