2001A&A...369..763D

Query : 2001A&A...369..763D

2001A&A...369..763D - Astronomy and Astrophysics, volume 369763-777 (2001/4-3)

HI-rich dwarf galaxies in the Hydra I cluster. II. Spectroscopic data.

DUC P.-A., CAYATTE V., BALKOWSKI C., THUAN T.X., PAPADEROS P. and VAN DRIEL W.

Abstract (from CDS):

We present spectrophotometric data for a sample of 15 HI-selected dwarf galaxies in the Hydra I cluster (see Duc et al., 1999A&AS..136..539D, Paper I). Long-slit spectra were obtained along an axis including the nucleus and the brightest HII region in each galaxy. The oxygen abundance was estimated from the emission lines using various methods. All dwarfs host one or several star-forming regions that are, for the most part, located outside the nucleus. We did not find in this survey any extremely metal-deficient objects, but we did observe some galaxies with a surprisingly high metallicity for their luminosity. In a following paper in this series, we will discuss the global properties of the HI-rich dwarfs in the Hydra I cluster and focus on their dependence on the environment.

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Journal keyword(s): galaxies: abundances - galaxies: dwarf - galaxies: clusters: general

Simbad objects: 16

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Number of rows : 16
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 LEDA 31270 EmG 10 34 16.560 -28 34 05.75   15.87   14.87   ~ 21 0
2 LEDA 763823 GiC 10 34 20.60 -26 47 30.6           ~ 11 0
3 LEDA 762376 GiC 10 34 40.56 -26 54 32.8           ~ 6 0
4 LEDA 751988 GiC 10 34 56.05 -27 38 24.6           ~ 10 0
5 LEDA 755655 GiC 10 35 21.68 -27 23 26.2           ~ 9 0
6 LEDA 761496 GiC 10 35 41.03 -26 58 19.0           ~ 9 0
7 LEDA 751896 GiC 10 35 46.79 -27 38 48.7           ~ 8 0
8 NAME Hydra I Cluster ClG 10 36 36.0 -27 31 04           ~ 905 1
9 LEDA 769967 H2G 10 36 54.77 -26 14 26.4           ~ 7 0
10 LEDA 31541 EmG 10 37 19.900 -28 14 20.17   16.0       ~ 19 0
11 LEDA 744507 GiC 10 37 38.60 -28 12 25.5           ~ 8 0
12 LEDA 768808 EmG 10 37 40.983 -26 20 55.47   16.2       ~ 16 0
13 LEDA 2793456 AG? 10 37 51.30 -25 18 07.0           ~ 5 0
14 LEDA 747838 GiC 10 38 11.87 -27 56 13.7           ~ 10 0
15 WALLABY J104026-274853 GiC 10 40 26.4 -27 48 53           ~ 6 0
16 LEDA 750199 GiC 10 40 58.6 -27 45 47           ~ 10 0

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