Variability time scales in the gamma-ray blazars using structure function analysis

被引：0
作者：
Nandikotkur, G [1 ]
Sreekumar, P [1 ]
Carter-Lewis, DA [1 ]
机构：
[1] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA
来源：
PROCEEDINGS OF THE FOURTH COMPTON SYMPOSIUM, PTS 1 AND 2: PT 1: THE COMPTON OBSERVATORY IN REVIEW; PT 2: PAPERS AND PRESENTATIONS | 1997年 / 410期
关键词：
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
About 50 active galactic nuclei (AGN) have been detected by the Energetic Gamma Ray Experiment Telescope (EGRET) on board the Compton Gamma Ray Observatory since its launch in 1991. A majority of them are Rat spectrum quasars and a few of them are BL Lacertae (BL Lac) objects. Some of the current models predict different time scales for variability in various regions of the electro-magnetic spectrum. Using structure function analysis, we are examining the variability time-scales in a few of the sources in the gamma-ray region. The existence of a maximum time-scale of correlation is being investigated in each source, The possible existence of multiple time-scales in single sources is also being explored. We present the preliminary results of an analysis of data on 3C279 in the 100 MeV-10000 MeV region.
引用
收藏
页码：1361 / 1365
页数：5
相关论文
共 50 条
  • [31] SYSTEMATIC STUDY OF GAMMA-RAY-BRIGHT BLAZARS WITH OPTICAL POLARIZATION AND GAMMA-RAY VARIABILITY
    Itoh, Ryosuke
    Nalewajko, Krzysztof
    Fukazawa, Yasushi
    Uemura, Makoto
    Tanaka, Yasuyuki T.
    Kawabata, Koji S.
    Madejski, Greg M.
    Schinzel, Frank. K.
    Kanda, Yuka
    Shiki, Kensei
    Akitaya, Hiroshi
    Kawabata, Miho
    Moritani, Yuki
    Nakaoka, Tatsuya
    Ohsugi, Takashi
    Sasada, Mahito
    Takaki, Katsutoshi
    Takata, Koji
    Ui, Takahiro
    Yamanaka, Masayuki
    Yoshida, Michitoshi
    ASTROPHYSICAL JOURNAL, 2016, 833 (01)
  • [32] Coordinated multiwavelength observations and spectral variability modeling of gamma-ray blazars
    Böttcher, M
    PROCEEDINGS OF THE 5TH INTEGRAL WORKSHOP ON THE INTEGRAL UNIVERSE, 2004, 552 : 543 - 550
  • [33] STUDY OF OPTICAL AND GAMMA-RAY LONG-TERM VARIABILITY IN BLAZARS
    Bhatta, Gopal
    ACTA PHYSICA POLONICA B PROCEEDINGS SUPPLEMENT, 2022, 15 (03)
  • [34] Gamma-ray variability and correlation properties of blazars observed with Fermi LAT
    Larsson, S.
    INTERNATIONAL WORKSHOP ON BEAMED AND UNBEAMED GAMMA-RAYS FROM GALAXIES, 2012, 355
  • [35] Search for rapid optical variability in three gamma-ray loud blazars
    Poggiani, R.
    ASTROPHYSICS AND SPACE SCIENCE, 2006, 306 (1-2) : 17 - 22
  • [36] Search for Rapid Optical Variability in Three Gamma-Ray Loud Blazars
    R. Poggiani
    Astrophysics and Space Science, 2006, 306 : 17 - 22
  • [37] VARIABILITY OF GAMMA-RAY EMISSION FROM BLAZARS ON BLACK HOLE TIMESCALES
    Vovk, Ie
    Neronov, A.
    ASTROPHYSICAL JOURNAL, 2013, 767 (02)
  • [38] Time correlation between the radio and gamma-ray activity in blazars and the production site of the gamma-ray emission
    Max-Moerbeck, W.
    Hovatta, T.
    Richards, J. L.
    King, O. G.
    Pearson, T. J.
    Readhead, A. C. S.
    Reeves, R.
    Shepherd, M. C.
    Stevenson, M. A.
    Angelakis, E.
    Fuhrmann, L.
    Grainge, K. J. B.
    Pavlidou, V.
    Romani, R. W.
    Zensus, J. A.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2014, 445 (01) : 428 - 436
  • [39] The radio and gamma-ray luminosities of blazars
    Zhang, L
    Cheng, KS
    Fan, JH
    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 2001, 53 (02) : 207 - 213
  • [40] Spectral modelling of gamma-ray blazars
    Bottcher, M
    Mause, H
    Schlickeiser, R
    PROCEEDINGS OF THE FOURTH COMPTON SYMPOSIUM, PTS 1 AND 2: PT 1: THE COMPTON OBSERVATORY IN REVIEW; PT 2: PAPERS AND PRESENTATIONS, 1997, (410): : 1473 - 1477
12345