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Report number arXiv:1711.10120
Title Exploring the Variability of the Flat Spectrum Radio Source 1633+382. I. Phenomenology of the Light Curves
Related titleExploring the Variability of the Flat Spectrum Radio Source 1633+382. I. Phenomenology of the Light Curves
Author(s) Algaba, Juan-Carlos ; Lee, Sang-Sung (KASI, DaeJeon ; Gangneung-Wonju Natl. U.) ; Kim, Dae-Won (Gangneung-Wonju Natl. U.) ; Rani, Bindu ; Hodgson, Jeffrey ; Kino, Motoki (KASI, DaeJeon ; Natl. Astron. Observ. of Japan) ; Trippe, Sascha (Unlisted, KR) ; Park, Jong-Ho ; Zhao, Guang-Yao ; Byun, Do-Young Show all 18 authors
Publication 2018-01-03
Imprint 2017-11-27
Number of pages 16
Note 16 pages, 15 figures, and 5 tables. Accepted for publication in ApJ. Small typo in the abstract corrected
In: Astrophys. J.
DOI 10.3847/1538-4357/aa9e50
10.3847/1538-4357/aa9e50
Subject category astro-ph.GA ; Astrophysics and Astronomy ; astro-ph.HE ; Astrophysics and Astronomy
Abstract We present multi-frequency simultaneous VLBI radio observations of the flat spectrum radio quasar 1633+382 (4C 38.41) as part of the interferometric monitoring of gamma-ray bright active galactic nuclei (iMOGABA) program combined with additional observations in radio, optical, X-rays and γrays carried out between the period 2012 March - 2015 August. The monitoring of this source reveals a significant long-lived increase in its activity since approximately two years in the radio bands, which correlates with a similar increase on all other bands from sub-millimeter to γrays. A significant correlation is also found between radio fluxes and simultaneous spectral indices during this period. The study of the discrete correlation function (DCF) indicates time lags smaller than the 40 days uncertainties among both radio bands and also high-energy bands, and a time lag of 70 days, with γrays leading radio. We interpret that the high-energy and radio fluxes are arising from different emitting regions, located at 1±12 and 40±13 pc from the central engine respectively.
Copyright/License arXiv nonexclusive-distrib. 1.0



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 Record created 2018-01-13, last modified 2021-05-03


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