Article (Scientific journals)
The perihelion activity of comet 67P/Churyumov-Gerasimenko as seen by robotic telescopes
Snodgrass, C.; Opitom, C.; de Val-Borro, M. et al.
2016In Monthly Notices of the Royal Astronomical Society, 462, p. 138-S145
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Keywords :
Comets: individual: 67P/Churyumov-Gerasimenko
Abstract :
[en] 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 activitywas 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 twoweeks after perihelion. The total brightness (dust) largely followed the predictions from Snodgrass et al., 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. © 2017 The Authors.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Snodgrass, C.;  School of Physical Sciences, The Open University, Walton Hall, Milton Keynes, United Kingdom
Opitom, C.;  Institut d'Astrophysique et de Géophysique, Université de Liège, Allée du 6 Aôut 17, Liège, Belgium
de Val-Borro, M.;  Department of Astrophysical Sciences, Princeton University, Princeton, NJ, United States, NASA Goddard Space Flight Center, Astrochemistry Laboratory, Code 691.0, Greenbelt, MD, United States
Jehin, Emmanuel  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Origines Cosmologiques et Astrophysiques (OrCa)
Manfroid, Jean  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)
Lister, T.;  Las Cumbres Observatory Global Telescope Network, 6740 Cortona Drive Ste. 102, Goleta, CA, United States
Marchant, J.;  Astrophysics Research Institute, Liverpool John Moores University, Liverpool, United Kingdom
Jones, G. H.;  Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey, United Kingdom, The Centre for Planetary Sciences at UCL/Birkbeck, Gower Street, London, United Kingdom
Fitzsimmons, A.;  Astrophysics Research Centre, School of Mathematics and Physics, Queen's University Belfast, BT7 1NN, United Kingdom
Steele, I. A.;  Astrophysics Research Institute, Liverpool John Moores University, Liverpool, United Kingdom
Smith, R. J.;  Astrophysics Research Institute, Liverpool John Moores University, Liverpool, United Kingdom
Jermak, H.;  Astrophysics Research Institute, Liverpool John Moores University, Liverpool, United Kingdom, Physics Department, Lancaster University, Lancaster, United Kingdom
Granzer, T.;  Leibniz-Institut für Astrophysik Potsdam, An der Sternwarte 16, Potsdam, Germany
Meech, K. J.;  Institute for Astronomy, 2680 Woodlawn Drive, Honolulu, HI, United States
Rousselot, P.;  University of Franche-Comté, Observatoire des Sciences de l'Univers THETA, Institut UTINAM - UMR CNRS 6213, BP 1615, Besançon Cedex, France
Levasseur-Regourd, A.-C.;  LATMOS-IPSL
UPMC (Sorbonne Univ.), B. C.;  4 place Jussieu, Paris, France
More authors (7 more) Less
Language :
English
Title :
The perihelion activity of comet 67P/Churyumov-Gerasimenko as seen by robotic telescopes
Publication date :
2016
Journal title :
Monthly Notices of the Royal Astronomical Society
ISSN :
0035-8711
eISSN :
1365-2966
Publisher :
Oxford University Press
Volume :
462
Pages :
S138-S145
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
SFTC - Science and Technology Facilities Council [GB]
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
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