Kinematics of gas and stars in gas-rich early-type galaxies

Bibcode
2001ApSSS.277..409C
DOI
10.1023/A:1012776112293
Caon, N.; Pastoriza, M.; Macchetto, D.
Referencia bibliográfica

Astrophysics and Space Science Supplement, v. 277, p. 409-412 (2001).

Fecha de publicación:
2001
Número de autores
3
Número de autores del IAC
1
Número de citas
2
Número de citas referidas
2
Descripción
We present gaseous and stellar kinematics for 14 gas-rich early-type galaxies. Half of the galaxies show irregular gaseous velocity profiles, with gas/star counter-rotation in 5 galaxies. We also find 5 counter-rotating stellar cores, and 5 more galaxies display stellar nuclei kinematically decoupled from the main stellar body. Our results indicate that the ionized gas is of external origin, and may have been acquired recently; the merging or accretion events that brought the gas into the galaxy have likely affected its stellar kinematics.
Tipo
Sin árbitro
Galaxias

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