Behaviour of the Blazar CTA 102 during Two Giant Outbursts

Valeri M. Larionov; Svetlana G. Jorstad; Alan P. Marscher; Paul S. Smith; Sergey Savchenko; Daria Morozova; Tatiana Grishina; Evgenia Kopatskaya; Liudmila Larionova; Elena Larionova; Anna Mokrushina; Ivan Troitsky; Yulia Troitskaya; George Borman

doi:10.3390/galaxies5040091

Galaxies (Nov 2017)

Behaviour of the Blazar CTA 102 during Two Giant Outbursts

Valeri M. Larionov,
Svetlana G. Jorstad,
Alan P. Marscher,
Paul S. Smith,
Sergey Savchenko,
Daria Morozova,
Tatiana Grishina,
Evgenia Kopatskaya,
Liudmila Larionova,
Elena Larionova,
Anna Mokrushina,
Ivan Troitsky,
Yulia Troitskaya,
George Borman

Affiliations

Valeri M. Larionov: Astronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, Russia
Svetlana G. Jorstad: Astronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, Russia
Alan P. Marscher: Institute for Astrophysical Research, Boston University, Boston, MA 02215, USA
Paul S. Smith: Steward Observatory, University of Arizona, Tucson, AZ 85721, USA
Sergey Savchenko: Astronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, Russia
Daria Morozova: Astronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, Russia
Tatiana Grishina: Astronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, Russia
Evgenia Kopatskaya: Astronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, Russia
Liudmila Larionova: Astronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, Russia
Elena Larionova: Astronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, Russia
Anna Mokrushina: Astronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, Russia
Ivan Troitsky: Astronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, Russia
Yulia Troitskaya: Astronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, Russia
George Borman: Crimean Astrophysical Observatory, Nauchny, Crimea 298409, Russia

DOI: https://doi.org/10.3390/galaxies5040091
Journal volume & issue: Vol. 5, no. 4
p. 91

Abstract

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Blazar CTA 102 underwent exceptional optical and high-energy outbursts in 2012 and 2016–2017. We analyze its behaviour during these events, focusing on polarimetry as a tool that allows us to trace changes in the physical conditions and geometric configuration of the emission source close to the central black hole. We also use Fermi γ -ray data in conjunction with optical photometry in an effort to localize the origin of the outbursts.

Published in Galaxies

ISSN: 2075-4434 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Astronomy
Website: http://www.mdpi.com/journal/galaxies

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