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Дата изменения: Wed Dec 14 00:49:10 2011 Дата индексирования: Tue Oct 2 02:43:25 2012 Кодировка: koi8-r |
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Discovery and study of unusual (unevolved, evolutionary young) LSBD galaxies in the Lynx-Cancer void Открытие и изучение необычных, эволюционно-молодых галактик в войде Lynx-Cancer |
Finding chart for the Lynx-Cancer LSBD galaxy SDSS J0723+3621.
Finding chart for the Lynx-Cancer LSBD galaxy SDSS J0737+4724.
Finding chart for the Lynx-Cancer LSBD galaxy SDSS J0852+1350.
Finding chart for the Lynx-Cancer pair of LSBD galaxis SDSS J0723+3621 and SDSS J0723+3622 (a faint fuzz at the E edge of the chart, along the direction of the major axies of J0723+3621).
Finding chart for the Lynx-Cancer pair of LSBD galaxies SDSS J0852+1350 and SDSS J0852+1351 (a blue faint galaxy NE from SDSS J0852+1350 with a nearby faint edge-on disc).
Positions of ugr colours (squares with error bars) of the outer parts for five the most atypical Lynx-Cancer void LSBDs superimposed on the PEGASE2 model evolutionary tracks for two extreme Star Formation (SF) laws - continuous SF with constant rate (black) and instantaneous SF episode (red). Numbers along the tracks mark the time since the beginning of SF. Solid and dotted tracks correspond to Salpeter Initial Mass Function (IMF) and Kroupa et al. (1997) IMF. These atypical very metal-poor galaxies do not show tracers of the stellar populations with ages larger than 1-4 Gyr, in difference with the great majority of other known dwarfs.
See details in Paper III (Pustilnik, Martin, Tepliakova, Kniazev MNRAS, 2011, 417, 1335-1349)
15 December 2011
