| Issue |
A&A
Volume 389, Number 3, July III 2002
|
|
|---|---|---|
| Page(s) | 779 - 786 | |
| Section | Cosmology (including clusters of galaxies) | |
| DOI | https://doi.org/10.1051/0004-6361:20020683 | |
| Published online | 01 July 2002 | |
The metallicities of UM 151, UM 408 and A 1228+12 revisited
1
Special Astrophysical Observatory RAS, Nizhnij Arkhyz, Karachai-Circassia, 369167 Russia
2
Isaac Newton Institute of Chile, SAO Branch
3
Max Planck Institut für Astronomie, Königstuhl 17, 69117, Heidelberg, Germany
4
Instituto de Astrofísica de Andalucía, Granada, Spain
Corresponding author: S. Pustilnik, sap@sao.ru
Received:
5
December
2001
Accepted:
16
April
2002
We present the results of new spectrophotometry and heavy element
abundance determinations for 3 dwarf galaxies UM 151, UM 408 and
A 1228+12 (RMB 132). These galaxies have been claimed in the literature
to have very low metallicities, corresponding to 
7.65, that are in the metallicity range of some candidate local young
galaxies. We present higher S/N data for these three galaxies.
UM 151 and UM 408 have significantly larger metallicities: 
8.5 and 7.93, respectively. For A 1228+12 our new 7.73 is close
to that recalculated from earlier data (7.68). Thus, the rederived
metallicities allow us to remove these objects from the list of
galaxies with 
.
Key words: galaxies: dwarf / galaxies: stellar content / galaxies: abundances / galaxies: individual: UM 151=Mkn 1169, UM 408, A 1228+12=RMB 132
© ESO, 2002
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