Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-08-31
AJ, December 1998
Astronomy and Astrophysics
Astrophysics
38 pages, 5 figures, 4 tables, tarred and compressed Also available on http://guernsey.uoregon.edu/~karen
Scientific paper
10.1086/300638
Although numerous simulations have been done to understand the effects of intense bursts of star formation on high surface brightness galaxies, few attempts have been made to understand how localized starbursts would affect both the color and surface brightness of low surface brightness (LSB) galaxies. To remedy this, we have run 53 simulations involving bursts of star formation activity on LSB galaxies, varying both the underlying galaxy properties and the parameters describing the starbursts. We discovered that although changing the total color of a galaxy was fairly straightforward, it was virtually impossible to alter a galaxy's central surface brightness and thereby remove it from the LSB galaxy classification without placing a high (and fairly artificial) threshold for the underlying gas density. The primary effect of large amounts of induced star formation was to produce a centralized core (bulge) component which is generally not observed in LSB galaxies. The noisy morphological appearance of LSB galaxies as well as their noisy surface brightness profiles can be reproduced by considering small bursts of star formation that are localized within the disk. The trigger mechanism for such bursts is likely distant/weak tidal encounters. The stability of disk central surface brightness to these periods of star formation argues that the large space density of LSB galaxies at z = 0 should hold to substantially higher redshifts.
Bothun Gragory D.
O'Neil Karen
Schombert James
No associations
LandOfFree
The Effects of Starburst Activity on Low Surface Brightness Disk 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 The Effects of Starburst Activity on Low Surface Brightness Disk Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Effects of Starburst Activity on Low Surface Brightness Disk Galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-23284