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Metallicities of galaxies in the nearby Lynx-Cancer void | | A. Kniazev
; S. Pustilnik
; A. Tepliakova
; A. Burenkov
; | | Date: |
15 Nov 2010 | | Abstract: | Does the void environment have a sizable effect on the evolution of dwarf
galaxies? If yes, the best probes should be the most fragile least massive
dwarfs. We compiled a sample of about one hundred dwarfs with M_B in the range
-12 to -18 mag, falling within the nearby Lynx-Cancer void. The goal is to
study their evolutionary parameters -- gas metallicity and gas mass-fraction,
and to address the epoch of the first substantial episode of Star Formation.
Here we present and discuss the results of O/H measurements in 38 void
galaxies, among which several the most metal-poor galaxies are found with the
oxygen abundances of 12+log(O/H)=7.12-7.3 dex. | | Source: | arXiv, 1011.3422 | | Services: | Forum | Review | PDF | Favorites | |
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