2004A&A...419L..43O

Query : 2004A&A...419L..43O

2004A&A...419L..43O - Astronomy and Astrophysics, volume 419L43-47 (2004/6-1)

Stellar dynamics of blue compact galaxies. I. Decoupled star-gas kinematics in ESO 400-G43.

OESTLIN G., CUMMING R.J., AMRAM P., BERGVALL N., KUNTH D., MARQUEZ I., MASEGOSA J. and ZACKRISSON E.

Abstract (from CDS):

In this letter we present the first results from a program aimed at measuring the stellar kinematics of blue compact galaxies by observing the near-infrared Calcium triplet. We show the first results for ESO 400-G43 based on deep VLT/FORS2 spectroscopy. The instabilities found in the central gaseous velocity field are not seen in the solid body stellar rotation curve, indicating that stars and gas are kinematically decoupled in this galaxy. Even if this galaxy has a perturbed gaseous velocity field, the stellar velocity dispersion on average agrees well with that derived from the nebular lines.

Abstract Copyright: ∼

Journal keyword(s): galaxies: compact - galaxies: kinematics and dynamics - galaxies: individual: ESO 400-G43 - galaxies: starburst

Simbad objects: 3

Full paper

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Number of rows : 3

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	CD-44 12736	PM*	18 36 25.9502475648	-44 18 36.907592904		10.83	10.22			G0	222	0
2	CD-30 17706	WD*	20 10 56.8486912016	-30 13 06.627142663	11.654	12.286	12.242	12.311	12.381	DA3.1	267	0
3	ESO 400-43	bCG	20 37 41.931	-35 29 07.94		14.26	14.34	13.93	13.96	~	52	2

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