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Determination of the rotational period of the comet 29P/Schwassmann-Wachmann-1 using dynamics of the dust structures (jets) in the coma

Published online by Cambridge University Press:  05 March 2015

Aleksandra Ivanova ,
Viktor Afanasiev ,
Pavlo Korsun ,
Aleksandr Baransky ,
Maksim Andreev  and
Vasyliy Ponomarenko
Aleksandra Ivanova
Affiliation:
MAO of NASU, email: sandra@mao.kiev.ua
Viktor Afanasiev
Affiliation:
SAO of RAS
Pavlo Korsun
Affiliation:
MAO of NASU, email: sandra@mao.kiev.ua
Aleksandr Baransky
Affiliation:
Astronomical observatory Kyiv Shevchenko National University
Maksim Andreev
Affiliation:
International Center for Astronomical, Medical and Ecological Research NASU
Vasyliy Ponomarenko
Affiliation:
Astronomical observatory Kyiv Shevchenko National University
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Abstract

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We present analysis of the photometric data of the distant comet 29P/Schwassmann-Wachmann-1, obtained at the 6-m BTA telescope (SAO RAS, Russia) and at the 2-meter telescope Zeiss-2000 (ICAMER, KB). The comet shows significant jets activity at large heliocentric distances, beyond the zone of water ice sublimation. Various digital filters were applied to increase the contrast of the jets and separate them. The rotation period of the nucleus was derived using cross-correlation method. The value of the rotation period is 12.1 ± 1.2 days for observations made in 2008 and 11.7 ± 1.5 days for observations made in 2009.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Highlights H16: Highlights of Astronomy , August 2012 , pp. 176
Copyright
Copyright © International Astronomical Union 2015