The Rotation Period of Comet 29P/Schwassmann-Wachmann 1 Determined from the Dust Structures (Jets) in the Coma

Autor:	A. V. Ivanova, Viktor Afanasiev, M. V. Andreev, V. A. Ponomarenko, Pavlo Korsun, A. R. Baranskii
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	Earth and Planetary Astrophysics (astro-ph.EP) Rotation period Physics Telescope Space and Planetary Science Observatory law FOS: Physical sciences Astronomy and Astrophysics Astrophysics Water ice law.invention Astrophysics - Earth and Planetary Astrophysics
Popis:	The results of the photometric observations of comet 29P/Schwassmann-Wachmann 1 are analyzed. The comet demonstrates substantial activity at heliocentric distances larger than 5 AU, outside the water ice sublimation zone. The CCD images of the comet were obtained in wideband R filters at the 6m telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences (SAO RAS) and at the 2m telescope of the Peak Terskol Observatory. The processing of the images with special digital filters allowed the active structures (jets) to be distinguished in the dust coma of the comet. With the cross correlation method, the rotation period of the cometary nucleus was determined as 12.1 and 11.7 days for the observations taken in December 2008, and February 2009, respectively. The probable causes of the difference in the estimates of the rotation period of the cometary nucleus obtained by differen authors are discussed. 7 pages, 5 figures
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f504b8d7af0fe7ad97bf3dbafd81399 http://arxiv.org/abs/2012.09007 Zobrazit plný text záznamu