Report number
| arXiv:1711.10120 |
Title
| Exploring the Variability of the Flat Spectrum Radio Source 1633+382. I. Phenomenology of the Light Curves |
Related title | Exploring 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 ; Gurwell, Mark (Harvard-Smithsonian Ctr. Astrophys.) ; Kang, Sin-Cheol ; Kim, Jae-Young ; Kim, Jeong-Sook (Taejon, Inst. Space Sci.) ; Kim, Soon-Wook (Taejon, Inst. Space Sci.) ; Lott, Benoit (CENBG, Gradignan) ; Miyazaki, Atsushi (CERN) ; Wajima, Kiyoaki (KASI, DaeJeon) 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 γ−rays 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 γ−rays. 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 γ−rays 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 |