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Dwarf galaxies in the nearby Lynx-Cancer void: photometry, colours and ages

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 نشر من قبل Alexei Kniazev
 تاريخ النشر 2010
  مجال البحث فيزياء
والبحث باللغة English
 تأليف S. Pustilnik




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The nearby Lynx-Cancer void is a good laboratory to study the effect of very rarefied environment on the evolution of the least massive dwarf galaxies. A recently compiled sample of this voids galaxies includes about one hundred objects with M_B in the range -12 to -18 mag. Good quality images are available in the SDSS database for ~80% of the sample. Their u,g,r,i,z photometry allows one to derive galaxy stellar mass (and, incorporating HI data, gas mass-fraction) and ages of visible stellar populations, and hence, the epoch of their formation (first SF episode). We present the first photometric results of the ongoing study of the Lynx-Cancer void.



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234 - A. Kniazev 2010
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