Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-04-02
Astronomy and Astrophysics
Astrophysics
15 pages (LATEX aasms4 style) and three postscript figures, accepted for publication in the Astrophysical Journal
Scientific paper
10.1086/306127
We explore mechanisms for the regulation of star formation in dwarf galaxies. We concentrate primarily on a sample in the Virgo cluster, which has HI and blue total photometry, for which we collected H$\alpha$ data at the Wise Observatory. We find that dwarf galaxies do not show the tight correlation of the surface brightness of H$\alpha$ (a star formation indicator) with the HI surface density, or with the ratio of this density to a dynamical timescale, as found for large disk or starburst galaxies. On the other hand, we find the strongest correlation to be with the average blue surface brightness, indicating the presence of a mechanism regulating the star formation by the older (up to 1 Gyr) stellar population if present, or by the stellar population already formed in the present burst.
Almoznino Elchanan
Brosch Noah
Heller Ana
No associations
LandOfFree
Star Formation in Dwarf Galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Star Formation in Dwarf Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Star Formation in Dwarf Galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-121344