The variability mechanism of Seyfert galaxy NGC 4151

被引：4
|
作者：
Fan, JH [1 ]
Su, CY
Lin, RG
机构：
[1] Guangzhou Univ, Ctr Astrophys, Guangzhou 510405, Peoples R China
[2] Chinese Acad Sci, Natl Astron Observ, Beijing, Peoples R China
[3] Guangdong Ind Univ, Dept Phys, Guangzhou 510643, Peoples R China
来源：
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN | 2002年 / 54卷 / 02期
关键词：
accretion; accretion disks; galaxies : individual (NGC 415 1); galaxies : Seyfert; instabilities;
D O I：
10.1093/pasj/54.2.175
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Based on compilation by Fan and Su (1998, AAA 70.158.417), the variability property is discussed for the Seyfert galaxy NGC 415 1 using the structure function, V(tau)(1/2) similar to tau(k). The derived k is 0.35 +/- 0.03, suggesting that the disk-instability favors the star-burst model as an explanation for the mechanism of the variability in this source.
引用
收藏
页码：175 / 178
页数：4
相关论文
共 50 条
  • [41] The radio emission of the Seyfert galaxy NGC 7319
    Aoki, K
    Kosugi, G
    Wilson, AS
    Yoshida, M
    ASTROPHYSICAL JOURNAL, 1999, 521 (02): : 565 - 571
  • [42] Line asymmetry in the Seyfert galaxy NGC 3783
    Ramírez, JM
    Bautista, M
    Kallman, T
    ASTROPHYSICAL JOURNAL, 2005, 627 (01): : 166 - 176
  • [43] Excited molecular hydrogen around the Seyfert nuclei of NGC 3227 and 4151
    Fernandez, BR
    Holloway, AJ
    Meaburn, J
    Pedlar, A
    Mundell, CG
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1999, 305 (02) : 319 - 324
  • [44] Physical conditions in the Seyfert galaxy NGC 2992
    Allen, MG
    Dopita, MA
    Tsvetanov, ZI
    Sutherland, RS
    ASTROPHYSICAL JOURNAL, 1999, 511 (02): : 686 - 708
  • [45] Outflow densities and ionization mechanisms in the NLRs of the prototypical Seyfert galaxies NGC 1068 and NGC 4151
    Holden, Luke R.
    Tadhunter, Clive N.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2023, 524 (01) : 886 - 905
  • [46] Metallicity in the merger Seyfert galaxy NGC 6240
    Contini, M.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2012, 426 (01) : 719 - 731
  • [47] SOFT VARIABILITY AND REFLECTION FEATURES IN THE X-RAY-SPECTRUM OF THE SEYFERT-GALAXY NGC-5506
    BOND, IA
    MATSUOKA, M
    YAMAUCHI, M
    ASTROPHYSICAL JOURNAL, 1993, 405 (01): : 179 - 185
  • [48] Gas dynamics in the barred Seyfert galaxy NGC 4151 - I. H I streaming shocks and inflow along the bar
    Mundell, CG
    Shone, DL
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1999, 304 (03) : 475 - 480
  • [49] Night-to-night variability of the emission lines in the spectrum of the Seyfert galaxy NGC 3227 nucleus
    Metik, L. P.
    Pronik, I. I.
    Sharipova, L. M.
    ASTROPHYSICS, 2006, 49 (04) : 427 - 436
  • [50] Studying the long-time variability of the Seyfert 2 galaxy NGC 4388 with INTEGRAL and Swift
    Fedorova, E. V.
    Beckmann, V.
    Neronov, A.
    Soldi, S.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2011, 417 (02) : 1140 - 1147
12345