Streaming motions toward the supermassive black hole in NGC 1097

被引:106
作者
Fathi, K
Storchi-Bergmann, T
Riffel, RA
Winge, C
Axon, DJ
Robinson, A
Capetti, A
Marconi, A
机构
[1] Rochester Inst Technol, Dept Phys, Rochester, NY 14623 USA
[2] Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil
[3] Gemini Observ, La Serena, Chile
[4] Osserv Astron Torino, INAF, I-10025 Pino Torinese, Italy
[5] Osserv Astrofis Arcetri, INAF, I-50125 Florence, Italy
基金
美国国家科学基金会;
关键词
galaxies : active; galaxies : kinematics and dynamics; galaxies : nuclei;
D O I
10.1086/503832
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We have used GMOS-IFU and high-resolution HST-ACS observations to map, in unprecedented detail, the gas velocity field and structure within the 0.7 kpc circumnuclear ring of the SBb LINER/Seyfert 1 galaxy NGC 1097. We find clear evidence of radial streaming motions associated with spiral structures leading to the unresolved (< 3.5 pc) nucleus, which we interpret as part of the fueling chain by which gas is transported to the nuclear starburst and supermassive black hole.
引用
收藏
页码:L25 / L28
页数:4
相关论文
共 24 条
[1]  
Combes F., 1996, Astronomical Society of the Pacific Conference Series, V91, P286
[2]   The host galaxies of narrow-line Seyfert 1 galaxies: Evidence for bar-driven fueling [J].
Crenshaw, DM ;
Kraemer, SB ;
Gabel, JR .
ASTRONOMICAL JOURNAL, 2003, 126 (04) :1690-1698
[3]   Gas and stellar dynamics in NGC 1068: probing the galactic gravitational potential [J].
Emsellem, E ;
Fathi, K ;
Wozniak, H ;
Ferruit, P ;
Mundell, CG ;
Schinnerer, E .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2006, 365 (02) :367-384
[4]   A two-arm gaseous spiral in the inner 200 pc of the early-type galaxy NGC 2974: signature of an inner bar [J].
Emsellem, E ;
Goudfrooij, P ;
Ferruit, P .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2003, 345 (04) :1297-1312
[5]   Dynamics of embedded bars and the connection with AGN -: I.: ISAAC/VLT stellar kinematics [J].
Emsellem, E ;
Greusard, D ;
Combes, F ;
Friedli, D ;
Leon, S ;
Pécontal, E ;
Wozniak, H .
ASTRONOMY & ASTROPHYSICS, 2001, 368 (01) :52-63
[6]   Dynamical decoupling of nested bars: Self-gravitating gaseous nuclear bars [J].
Englmaier, P ;
Shlosman, I .
ASTROPHYSICAL JOURNAL, 2004, 617 (02) :L115-L118
[7]   A bar signature and central disc in the gaseous and stellar velocity fields of NGC 5448 [J].
Fathi, K ;
van de Ven, G ;
Peletier, RF ;
Emsellem, E ;
Falcón-Barroso, J ;
Cappellari, M ;
de Zeeuw, T .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2005, 364 (03) :773-782
[8]  
Fathi K., 2004, THESIS U GRONINGEN
[9]   ON DISKS OF SPIRAL AND SO-GALAXIES [J].
FREEMAN, KC .
ASTROPHYSICAL JOURNAL, 1970, 160 (03) :811-&
[10]   Gravitationally induced inflow in starbursts and AGN [J].
Knapen, JH .
ASTROPHYSICS AND SPACE SCIENCE, 2005, 295 (1-2) :85-94