THE NUCLEAR-STRUCTURE OF NGC-3079

被引:39
作者
BAAN, WA [1 ]
IRWIN, JA [1 ]
机构
[1] QUEENS UNIV,DEPT PHYS,KINGSTON,ON K7L 3N6,CANADA
关键词
GALAXIES; INDIVIDUAL; (NGC; 3079); JETS; KINEMATICS AND DYNAMICS; ISM; MOLECULES; NUCLEI;
D O I
10.1086/175820
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Interferometric observations of the H I and OH absorption against the nuclear radio source of NGC 3079 are presented. The absorption structure reveals three distinct absorption components associated with the nuclear disk (and torus) and the inner and outer disk structures. Weak OH emission appears in the data at about 200 km s(-1) below the systemic velocity of the galaxy and coincides in velocity but not in position with the prominent H2O megamaser emission feature. The data show evidence of the nuclear jet outflow and the presence of a superbubble. The velocity information of all molecular line and other spectroscopic data provides a detailed and consistent picture of the dynamics and velocity structure of the nuclear region.
引用
收藏
页码:602 / 615
页数:14
相关论文
共 32 条
[21]   THE RELATIVE FREQUENCY OF BROAD-LINED AND NARROW-LINED ACTIVE GALACTIC NUCLEI - IMPLICATIONS FOR UNIFIED SCHEMES [J].
LAWRENCE, A .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1991, 252 (04) :586-592
[22]   OBSERVATIONS FROM 1 TO 20 MICRONS OF LOW-LUMINOSITY ACTIVE GALAXIES [J].
LAWRENCE, A ;
WARD, M ;
ELVIS, M ;
FABBIANO, G ;
WILLNER, SP ;
CARLETON, NP ;
LONGMORE, A .
ASTROPHYSICAL JOURNAL, 1985, 291 (01) :117-127
[23]   EVIDENCE FOR A BLACK-HOLE FROM HIGH ROTATION VELOCITIES IN A SUB-PARSEC REGION OF NGC4258 [J].
MIYOSHI, M ;
MORAN, J ;
HERRNSTEIN, J ;
GREENHILL, L ;
NAKAI, N ;
DIAMOND, P ;
INOUE, M .
NATURE, 1995, 373 (6510) :127-129
[24]   THE MILLIARCSECOND STRUCTURE OF A COMPLETE SAMPLE OF RADIO-SOURCES .2. 1ST-EPOCH MAPS AT 5 GHZ [J].
PEARSON, TJ ;
READHEAD, ACS .
ASTROPHYSICAL JOURNAL, 1988, 328 (01) :114-142
[25]  
PEARSON TJ, 1995, UNPUB
[26]   INFRARED-SPECTRA OF OBSCURING DUST TORI AROUND ACTIVE GALACTIC NUCLEI .2. COMPARISON WITH OBSERVATIONS [J].
PIER, EA ;
KROLIK, JH .
ASTROPHYSICAL JOURNAL, 1993, 418 (02) :673-686
[27]  
SOFUE Y, 1992, PUBL ASTRON SOC JPN, V44, P353
[28]  
TURNER BE, 1985, UNPUB
[29]  
VANDERWERF P, 1994, UNPUB
[30]   THE NUCLEAR SUPERBUBBLE OF NGC-3079 [J].
VEILLEUX, S ;
CECIL, G ;
BLANDHAWTHORN, J ;
TULLY, RB ;
FILIPPENKO, AV ;
SARGENT, WLW .
ASTROPHYSICAL JOURNAL, 1994, 433 (01) :48-64