Multi-epoch X-ray observations of the narrow-line Seyfert 1 galaxy SDSS J160508.87+323921.4 with XMM-Newton

被引:0
|
作者
YanLi Ai
WeiMin Yuan
HongYan Zhou
JianGuo Wang
机构
[1] Chinese Academy of Sciences,National Astronomical Observatories/Yunnan Observatory
[2] Chinese Academy of Sciences,Key Laboratory for the Structure and Evolution of Celestial Objects
[3] Graduate University of the Chinese Academy of Sciences,Center for Astrophysics
[4] University of Science and Technology of China,Joint Institute of Galaxies and Cosmology
[5] SHAO and USTC,undefined
来源
Science China Physics, Mechanics and Astronomy | 2010年 / 53卷
关键词
galaxies: active; Seyfert; X-rays; individual;
D O I
暂无
中图分类号
学科分类号
摘要
We present results of multi-epoch XMM-Newton observations separated by several years of the narrow-line Seyfert 1 (NLS1) galaxy, SDSS J160508.87+323921.4. The NLS1 showed X-ray flux variations on timescales of years as well as low amplitude variations on timescales as short as hours, while the X-ray spectral shape remained essentially unchanged. The spectrum shows a significant soft X-ray excess. The model of reflection from an ionized disc, that is dominant in the whole XMM-Newton bandpass, provides the best description of the observed spectra for all the observations, though alternatives such as Compton scattering (T ∼ 0.25 keV) cannot be ruled out in a statistical sense. For the disc reflection model, the observed variations may originate either from the change in the reflection fraction, or from the variability of the intrinsic X-ray luminosity.
引用
收藏
页码:207 / 211
页数:4
相关论文
共 50 条
  • [31] An XMM-Newton study of six narrow-line Seyfert 1 galaxies at z=0.35-0.92
    Yu, Zhibo
    Jiang, Jiachen
    Bambi, Cosimo
    Gallo, Luigi C.
    Grupe, Dirk
    Fabian, Andrew C.
    Reynolds, Christopher S.
    Brandt, William N.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2023, 522 (04) : 5456 - 5468
  • [32] Lognormal X-ray flux variations in an extreme narrow-line Seyfert 1 galaxy
    Gaskell, CM
    ASTROPHYSICAL JOURNAL, 2004, 612 (01): : L21 - L24
  • [33] UV and X-ray variability of the narrow-line Seyfert 1 galaxy Ark 564
    Ezhikode, Savithri H.
    Dewangan, Gulab C.
    Misra, Ranjeev
    Tripathi, Shruti
    Philip, Ninan Sajeeth
    Kembhavi, Ajit K.
    RESEARCH IN ASTRONOMY AND ASTROPHYSICS, 2016, 16 (07)
  • [34] Multi-epoch X-ray observations of the Seyfert 1.2 galaxy Mrk 79: bulk motion of the illuminating X-ray source
    Gallo, L. C.
    Miniutti, G.
    Miller, J. M.
    Brenneman, L. W.
    Fabian, A. C.
    Guainazzi, M.
    Reynolds, C. S.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2011, 411 (01) : 607 - 619
  • [35] UV and X-ray variability of the narrow-line Seyfert 1 galaxy Ark 564
    Savithri H.Ezhikode
    Gulab C.Dewangan
    Ranjeev Misra
    Shruti Tripathi
    Ninan Sajeeth Philip
    Ajit K.Kembhavi
    ResearchinAstronomyandAstrophysics, 2016, 16 (07) : 72 - 79
  • [36] An X-ray view of Mrk 705 - A borderline narrow-line Seyfert 1 galaxy
    Gallo, LC
    Balestra, I
    Costantini, E
    Boller, T
    Burwitz, V
    Ferrero, E
    Mathur, S
    ASTRONOMY & ASTROPHYSICS, 2005, 442 (03) : 909 - 915
  • [37] A long XMM-Newton observation of an extreme narrow-line Seyfert 1: PG 1244+026
    Jin, Chichuan
    Done, Chris
    Middleton, Matthew
    Ward, Martin
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2013, 436 (04) : 3173 - 3185
  • [38] XMM-NEWTON OBSERVATIONS OF THREE LOW X-RAY LUMINOSITY GALAXY CLUSTERS
    Bruch, Seth
    Donahue, Megan
    Voit, G. Mark
    Sun, Ming
    Conselice, Christopher J.
    ASTROPHYSICAL JOURNAL, 2010, 724 (01): : 608 - 617
  • [39] X-ray and optical variability of Seyfert 1 galaxies as observed with XMM-Newton
    Smith, R.
    Vaughan, S.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2007, 375 (04) : 1479 - 1487
  • [40] The warm absorber and X-ray variability of the Seyfert 1 galaxy NGC 3516 as seen by the XMM-Newton RGS
    Mehdipour, M.
    Branduardi-Raymont, G.
    Page, M. J.
    ASTRONOMY & ASTROPHYSICS, 2010, 514