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arXiv · 0708.1227

H-alpha Survey of the Local Volume: Isolated Southern Galaxies

S. S. Kaisin·A. V. Kasparova·A. Yu. Knyazev·I. D. Karachentsev
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Abstract

We present our H-alpha observations of 11 isolated southern galaxies: SDIG, PGC 51659, E 222-010, E 272-025, E 137-018, IC 4662, Sag DIG, IC 5052, IC 5152, UGCA 438, and E149-003, with distances from 1 to 7 Mpc. We have determined the total H-alpha fluxes from these galaxies. The star formation rates in these galaxies range from 10^{-1} (IC 4662) to 10^{-4}_{\odot}/yr (SDIG) and the gas depletion time at the observed star formation rates lies within the range from 1/6 to 24 Hubble times H_0^{-1} .

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S. S. Kaisin, A. V. Kasparova, A. Yu. Knyazev, I. D. Karachentsev. 2007-08-09. H-alpha Survey of the Local Volume: Isolated Southern Galaxies. https://doi.org/10.1134/s1063773707050015

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