A survey of the interstellar medium in early-type galaxies. III. Stellar and gas kinematics
Visualizar/abrir
Data
2000Tipo
Assunto
Abstract
We present gaseous and stellar kinematics for 14 gas-rich early-type galaxies. Half of the sample exhibit irregular gaseous velocity profiles ; gas/star counter-rotation is visible in Ðve galaxies. We also find five counter-rotating stellar cores, while five more galaxies display inner components kinematically decoupled from the main stellar body. We interpret our results as an indication that the ionized gas is of external origin, is generally not in equilibrium, and may have been acquired rec ...
We present gaseous and stellar kinematics for 14 gas-rich early-type galaxies. Half of the sample exhibit irregular gaseous velocity profiles ; gas/star counter-rotation is visible in Ðve galaxies. We also find five counter-rotating stellar cores, while five more galaxies display inner components kinematically decoupled from the main stellar body. We interpret our results as an indication that the ionized gas is of external origin, is generally not in equilibrium, and may have been acquired recently. The merging or accretion events that brought the gas into the galaxy have also aected the stellar kinematics. ...
Contido em
The Astrophysical journal. Supplement series. Chicago. Vol. 127, no. 1 (Mar. 2000), p. 39-58
Origem
Estrangeiro
Coleções
-
Artigos de Periódicos (39774)Ciências Exatas e da Terra (6068)
Este item está licenciado na Creative Commons License