Supernova explosion and loss of baryonic matter in a dark halo

Authors
Citation
Gr. Zhou, Supernova explosion and loss of baryonic matter in a dark halo, CHIN ASTR A, 23(2), 1999, pp. 152-158
Citations number
4
Categorie Soggetti
Space Sciences
Journal title
CHINESE ASTRONOMY AND ASTROPHYSICS
ISSN journal
02751062 → ACNP
Volume
23
Issue
2
Year of publication
1999
Pages
152 - 158
Database
ISI
SICI code
0275-1062(199904/06)23:2<152:SEALOB>2.0.ZU;2-O
Abstract
The feedback effect of supernova explosions on dwarf galaxies in the cold d ark matter dominated universe is studied. A mass loss model of galaxies and a method of comparing the model with observations are developed. It is fou nd that when a galaxy is surrounded by a dark halo, the mass loss caused by supernova explosions is severely restricted, but not as severely as was ex pected. if we assume the collapse redshift to be z = 2 similar to 8, the mo del agrees with the observations for the range of parameters chosen, and in dicates that less massive galaxies are formed first.