A photometric and dynamic study of comet C/2013 A1 (Siding Spring) from observations at a heliocentric distance of ~4.1 AU
- Authors: Andrienko Y.S.1, Golovin A.V.2, Ivanova A.V.2, Reshetnik V.N.1,2, Kolesnik S.N.1, Borisenko S.A.2
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Affiliations:
- Aff1
- Main Astronomical Observatory
- Issue: Vol 50, No 2 (2016)
- Pages: 102-112
- Section: Article
- URL: https://journal-vniispk.ru/0038-0946/article/view/170412
- DOI: https://doi.org/10.1134/S0038094616020015
- ID: 170412
Cite item
Abstract
An analysis is presented for the photometric data on comet C/2013 A1 (Siding Spring) from observations at a large heliocentric distance (~4.1 AU). Comet C/2013 A1 (Siding Spring) displays intense activity despite the relatively large heliocentric distance. The morphology of the comet’s coma is analyzed. The following parameters are measured: the color indices V-R, the normalized spectral gradient of the reflectivity of the comet’s dust S', and the dust production rate Afρ. A numerical simulation is performed for the evolution of the comet’s orbit after a close encounter with Mars. The most probable values are obtained for the Keplerian orbital elements of the comet over a hundred-year period. The comet’s orbit remains nearly parabolic after passing the orbits of all the Solar System planets.
Keywords
About the authors
Yu. S. Andrienko
Aff1
Author for correspondence.
Email: andrienko.j@univ.kiev.ua
Ukraine, Kyiv
A. V. Golovin
Main Astronomical Observatory
Email: andrienko.j@univ.kiev.ua
Ukraine, Kyiv
A. V. Ivanova
Main Astronomical Observatory
Email: andrienko.j@univ.kiev.ua
Ukraine, Kyiv
V. N. Reshetnik
Aff1; Main Astronomical Observatory
Email: andrienko.j@univ.kiev.ua
Ukraine, Kyiv; Kyiv
S. N. Kolesnik
Aff1
Email: andrienko.j@univ.kiev.ua
Ukraine, Kyiv
S. A. Borisenko
Main Astronomical Observatory
Email: andrienko.j@univ.kiev.ua
Ukraine, Kyiv
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