ATOMIC HYDROGEN PROPERTIES OF ACTIVE GALACTIC NUCLEI HOST GALAXIES: H i IN 16 NUCLEI OF GALAXIES (NUGA) SOURCES
ATOMIC HYDROGEN PROPERTIES OF ACTIVE GALACTIC NUCLEI HOST GALAXIES: H i IN 16 NUCLEI OF GALAXIES (NUGA) SOURCES
复制标题
活动星系核宿主星系的原子氢特性:16 个星系核 (NUGA) 源中的 H i
DOI:
10.1088/0004-6256/135/1/232
复制
发表时间:
2008
期刊:
影响因子:
--
通讯作者:
中科院分区:
文献类型:
--
作者:
We present a comprehensive spectroscopic imaging survey of the distribution and kinematics of atomic hydrogen (H i) in 16 nearby spiral galaxies hosting low luminosity active galactic nuclei (AGN), observed with high spectral and spatial resolution (resolution:∼ 20'',∼ 5 km s− 1) using the NRAO Very Large Array (VLA). The sample contains a range of nuclear types ranging from Seyfert to star-forming nuclei, and was originally selected for the NUclei of GAlaxies project (NUGA)—a spectrally and spatially resolved interferometric survey of gas dynamics in nearby galaxies designed to identify the fueling mechanisms of AGN and the relation to host galaxy evolution. Here we investigate the relationship between the H i properties of these galaxies, their environment, their stellar distribution, and their AGN type. The large-scale H i morphology of each galaxy is classified as ringed, spiral, or centrally concentrated; comparison of the resulting morphological classification with the AGN type reveals that ring structures are significantly more common in low-ionization narrow emission-line regions (LINER) than in Seyfert host galaxies, suggesting a time evolution of the AGN activity together with the redistribution of the neutral gas. Dynamically disturbed H i disks are also more prevalent in LINER host galaxies than in Seyfert host galaxies. While several galaxies are surrounded by companions (some with associated H i emission), there is no correlation between the presence of companions and the AGN type (Seyfert/LINER).
登录
查看更多内容
DOI:
--
发表时间:
1995
期刊:
影响因子:
--
作者:
P. Rafanelli;M. Violato;A. Baruffolo
通讯作者:
A. Baruffolo
影响因子:
6.5
作者:
Francoise Combes;S. Garcia;F. Boone;L. Hunt;Andrew J. Baker;A. Eckart;P. Englmaier;S. Léon;R. Neri;E. Schinnerer;L. Tacconi
通讯作者:
L. Tacconi
DOI:
--
发表时间:
1990
期刊:
影响因子:
--
作者:
F. Shu;S. Tremaine;F. Adams;S. Ruden
通讯作者:
S. Ruden
DOI:
10.1086/301140
发表时间:
1999-09
期刊:
The Astronomical Journal
影响因子:
--
作者:
P. Martini;R. Pogge
通讯作者:
P. Martini;R. Pogge
DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
W. Maciejewski
通讯作者:
W. Maciejewski