2002A&A...389..836H

Query : 2002A&A...389..836H

2002A&A...389..836H - Astronomy and Astrophysics, volume 389836-844 (2002/7-3)

The chemical content of a sample of dwarf irregular galaxies.

HIDALGO-GAMEZ A.M. and OLOFSSON K.

Abstract (from CDS):

We present abundances of neon, nitrogen and oxygen of some nearby dwarf irregular galaxies. The elemental abundances are retrieved from long-slit spectroscopy of HII regions in the objects. The abundances are found to be sub-solar in all cases. For the dwarf irregular galaxy DDO 190 the abundances reported in this work are the first ever published. One object, DDO 167, proved to have an oxygen abundance about similar to the one of I Zw 18, even though the uncertainties are high. A comparison of the chemical abundances between all the groups of gas-rich galaxies have been performed and the main conclusion is that the dwarf gas-rich galaxies are not distinguishable on the basis of their chemical content.

Abstract Copyright: ∼

Journal keyword(s): galaxies: evolution - galaxies: irregular - galaxies: stellar content - galaxies: dwarf

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 IC 10 rG 00 20 17.33520 +59 18 13.6480   13.6 9.5     ~ 1185 1
2 MCG-07-04-032 AG? 01 45 03.74 -43 35 52.9 13.45 12.92 12.63 12.51 12.8 ~ 152 1
3 [M96b] AO 0143-43 12 HII 01 45 07.3 -43 36 15           ~ 4 0
4 SBSG 0335-052 AGN 03 37 44.06 -05 02 40.2     16.65     ~ 500 1
5 UGC 4305 IG 08 19 04.9864630512 +70 43 13.086910452 12.06 11.72 11.39 11.11   ~ 812 2
6 Mrk 116 AGN 09 34 02.1 +55 14 25           ~ 1179 1
7 Z 71-87 H2G 12 58 40.1930636208 +14 13 00.739589628 15.24 15.16 14.98 14.81   ~ 475 0
8 MCG+08-24-090 AG? 13 13 22.839 +46 19 21.71   17       ~ 135 1
9 Z 245-36 AG? 13 14 27.997 +45 55 11.14 13.63 13.26 13.02 12.81   ~ 297 0
10 Z 247-26 AG? 14 24 43.21 +44 31 41.8 14.24 13.54 13.17 13.07   ~ 217 0
11 NAME IC 4662 D PoG 17 46 50 -64 39.0           ~ 8 0
12 [HMM90] A1 HII 17 46 59 -64 38.7           ~ 14 0
13 [HMM90] A2 HII 17 46 59 -64 38.7           ~ 14 0
14 IC 4662 bCG 17 47 09.192 -64 38 19.25   11.75 11.1 10.45   ~ 253 4
15 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1661 0
16 IC 5152 rG 22 02 41.521 -51 17 47.20   11.03 10.9 10.19   ~ 273 1

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