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Galaxies 2016, 4(4), 61; doi:10.3390/galaxies4040061

Investigating the Puzzling Synchrotron Behaviour of Mrk 421

1
INAF, Osservatorio Astrofisico di Torino, via Osservatorio 20, I-10025 Pino Torinese, Italy
2
Instituto de Astrofisica de Canarias (IAC). E-38205 La Laguna, Tenerife, Spain
3
Departamento de Astrofisica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, Spain
4
Steward Observatory, University of Arizona, Tucson, AZ 85721, USA
5
Astronomical Institute, St. Petersburg State University, St. Peterburg 198504, Russia
6
Pulkovo Observatory, St.-Petersburg 196140, Russia
*
Author to whom correspondence should be addressed.
Academic Editors: Jose L. Gómez, Alan P. Marscher and Svetlana G. Jorstad
Received: 9 September 2016 / Revised: 6 October 2016 / Accepted: 15 October 2016 / Published: 4 November 2016
(This article belongs to the Special Issue Blazars through Sharp Multi-wavelength Eyes)
View Full-Text   |   Download PDF [2059 KB, uploaded 4 November 2016]   |  

Abstract

We investigate the multiwavelength behaviour of the high-energy peaked BL Lac object (HBL) Mrk 421 at redshift z = 0 . 031 in the period 2007–2015. We use optical photometric, spectroscopic, and polarimetric data and near-infrared data obtained by 35 observatories participating in the GLAST-AGILE Support Program (GASP) of the Whole Earth Blazar Telescope (WEBT), as well as by the Steward Observatory Support of the Fermi Mission. We also employ high-energy data from the Swift (UV and X-rays) satellite to study correlations among emission in different bands. View Full-Text
Keywords: galaxies: active; BL Lacertae objects: general; BL Lacertae objects: individual: Mrk 421; galaxies: jets galaxies: active; BL Lacertae objects: general; BL Lacertae objects: individual: Mrk 421; galaxies: jets
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Carnerero, M.I.; Raiteri, C.M.; Villata, M.; Acosta Pulido, J.A.; Smith, P.S.; Larionov, V.M.; the WEBT Collaboration. Investigating the Puzzling Synchrotron Behaviour of Mrk 421. Galaxies 2016, 4, 61.

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