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Open AccessArticle

Optical Outburst of the Blazar S4 0954+658 in Early 2015

1
Department of Astrophysics, St. Petersburg State University, Universitetsky Prospekt, 28, Peterhof, St. Petersburg 198504, Russia
2
Institute for Astrophysical Research, Boston University, 725 Commonwealth Ave., Boston, MA 02215, USA
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Department of Physics, Institute for Plasma Physics, University of Crete, Heraklion GR-71003, Greece
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Crimean Astrophysical Observatory, P/O Nauchny, Crimea 298409, Russia
5
Harvard-Smithsonian CfA, Cambridge, MA 02138, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Emilio Elizalde
Galaxies 2016, 4(3), 24; https://doi.org/10.3390/galaxies4030024
Received: 12 July 2016 / Revised: 29 August 2016 / Accepted: 30 August 2016 / Published: 3 September 2016
(This article belongs to the Special Issue Blazars through Sharp Multi-wavelength Eyes)
We analyze the behavior of the BL Lac object S4 0954+658 during an unprecedented bright optical flare in early 2015. The optical flare was accompanied by a powerful γ -ray flare and the detection of very-high-energy γ -ray emission. We analyze total and polarized intensity images obtained with the VLBA at 43 GHz and discover a new bright polarized superluminal knot, which was ejected from the VLBI-core during the peak of the flare. View Full-Text
Keywords: blazars; jets; polarization blazars; jets; polarization
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MDPI and ACS Style

Morozova, D.; Larionov, V.; Jorstad, S.; Marscher, A.; Troitskaya, Y.; Troitskiy, I.; Blinov, D.; Borman, G.; Gurwell, M. Optical Outburst of the Blazar S4 0954+658 in Early 2015. Galaxies 2016, 4, 24.

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