XMM-NEWTON OBSERVATIONS OF THE SEYFERT 2 GALAXY NGC 7590: THE NATURE OF X-RAY ABSORPTION

被引：10
|
作者：
Shu, X. W. [1 ]
Liu, T. [1 ]
Wang, J. X. [1 ]
机构：
[1] Univ Sci & Technol China, CAS Key Lab Res Galaxies & Cosmol, Dept Astron, Hefei 230026, Anhui, Peoples R China
来源：
ASTROPHYSICAL JOURNAL | 2010年 / 722卷 / 01期
关键词：
galaxies: active; galaxies: individual (NGC 7590); galaxies: nuclei; X-rays: galaxies; ACTIVE GALACTIC NUCLEI; BROAD-LINE REGIONS; CHANDRA OBSERVATIONS; EMISSION-LINE; NO ABSORPTION; OBSCURATION; SAMPLE; OBJECTS; AGN;
D O I：
10.1088/0004-637X/722/1/96
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present the analysis of three XMM-Newton observations of the Seyfert 2 galaxy NGC 7590. The source was found to have no X-ray absorption in the low spatial resolution ASCA data. The XMM-Newton observations provide a factor of similar to 10 better spatial resolution than previous ASCA data. We find that the X-ray emission of NGC 7590 is dominated by an off-nuclear ultra-luminous X-ray source and an extended emission from the host galaxy. The nuclear X-ray emission is rather weak compared with the host galaxy. Based on its very low X-ray luminosity as well as the small ratio between the 2-10 keV and the [OIII] fluxes, we interpret NGC 7590 as Compton-thick rather than being an "unobscured" Seyfert 2 galaxy. Future higher resolution observations such as Chandra are crucial to shed light on the nature of the NGC 7590 nucleus.
引用
收藏
页码：96 / 101
页数：6
相关论文
共 50 条
  • [1] The X-ray nature of the nucleus in Seyfert 2 galaxy NGC 7590
    Shu, Xin-Wen
    Wang, Jun-Xian
    Liu, Teng
    Zheng, Wei
    RESEARCH IN ASTRONOMY AND ASTROPHYSICS, 2012, 12 (09) : 1247 - 1254
  • [2] The X-ray nature of the nucleus in Seyfert 2 galaxy NGC 7590
    Xin-Wen Shu1
    2 Department of Physics and Astronomy
    Research in Astronomy and Astrophysics, 2012, 12 (09) : 1247 - 1254
  • [3] XMM-Newton observations of the Seyfert 1 galaxy NGC 3227
    Gondoin, P. (pgondoin@rssd.esa.int), 1600, EDP Sciences (397):
  • [4] XMM-Newton observations of the Seyfert 1 galaxy NGC 3227
    Gondoin, P
    NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2004, 132 : 181 - 184
  • [5] XMM-Newton observations of the Seyfert 1 galaxy NGC 3227
    Gondoin, P
    Orr, A
    Lumb, D
    Siddiqui, H
    ASTRONOMY & ASTROPHYSICS, 2003, 397 (03): : 883 - 890
  • [6] Multiwavelength studies of the Seyfert 1 galaxy NGC 7469 II. X-ray and UV observations with XMM-Newton
    Blustin, A.J. (ajb@mssl.ucl.ac.uk), 1600, EDP Sciences (403):
  • [7] Multiwavelength studies of the seyfert 1 galaxy NGC 7469 II. X-ray and UV observations with XMM-Newton
    Blustin, AJ
    Branduardi-Raymont, G
    Behar, E
    Kaastra, JS
    Kriss, GA
    Page, MJ
    Kahn, SM
    Sako, M
    Steenbrugge, KC
    ASTRONOMY & ASTROPHYSICS, 2003, 403 (02) : 481 - 492
  • [8] XMM-Newton observations of the diffuse X-ray emission in the starburst galaxy NGC 253
    Bauer, M.
    Pietsch, W.
    Trinchieri, G.
    Breitschwerdt, D.
    Ehle, M.
    Freyberg, M. J.
    Read, A. M.
    ASTRONOMY & ASTROPHYSICS, 2008, 489 (03) : 1029 - U28
  • [9] On the nature of the X-ray absorption in the Seyfert 2 galaxy NGC 4507
    Comastri, A
    Vignali, C
    Cappi, M
    Matt, G
    Audano, R
    Awaki, H
    Ueno, S
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1998, 295 (02) : 443 - 450
  • [10] 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
12345