Bibcode
DOI
Caon, N.; Macchetto, Duccio; Pastoriza, Miriani
Bibliographical reference
The Astrophysical Journal Supplement Series, Volume 127, Issue 1, pp. 39-58.
Advertised on:
3
2000
Citations
102
Refereed citations
92
Description
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 five 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 affected the stellar kinematics. Based on
observations collected at the European Southern Observatory.