SIMPLE PROBABILISTIC THEORY OF FRAGMENTATION

被引:72
作者
LARSON, RB [1 ]
机构
[1] YALE UNIV OBSERV,NEW HAVEN,CT 06520
关键词
Fragmentation process - Gaussian functions - Initial mass - Interstellar clouds - Mass spectra - Per unit - Probabilistic theory - Simple modeling - Simple++ - Stellar mass;
D O I
10.1093/mnras/161.2.133
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
A simple model for the fragmentation process in a collapsing interstellar cloud is developed, which is based on the assumption that the successive stages of the fragmentation process can be treated as random events. The resulting stellar mass spectrum predicted by the model, defined in terms of the amount of mass per unit logarithmic mass interval, is approximately a gaussian function, in agreement with the empirical initial stellar mass spectrum. Some possible ways of accounting for differences in the initial mass spectrum between different stellar systems are also discussed. © 1973 Royal Astronomical Society. Provided by the NASA Astrophysics Data System.
引用
收藏
页码:133 / 143
页数:11
相关论文
共 24 条
[1]  
BOK BJ, 1971, DARK NEBULAE GLOBULE, P33
[2]   COLLAPSE OF INTERSTELLAR GAS CLOUDS .4. MODELS OF COLLAPSE AND A THEORY OF STAR FORMATION [J].
DISNEY, MJ ;
MCNALLY, D ;
WRIGHT, AE .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1969, 146 (02) :123-&
[3]  
Feller W., 1957, INTRO PROBABILITY TH
[4]  
FIELD GB, 1970, 16TH ANN INT ASTR S, P29
[5]  
HARTMANN WK, 1970, 16 U LIEG LIEG COLL, P49
[6]  
Jeans J.H., 1929, ASTRONOMY COSMOGONY
[7]   STELLAR POPULATIONS IN GALAXIES [J].
KING, IR .
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 1971, 83 (494) :377-&
[9]   A MODEL FOR FORMATION OF A SPHERICAL GALAXY [J].
LARSON, RB .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1969, 145 (04) :405-&
[10]   COLLAPSE OF A ROTATING CLOUD [J].
LARSON, RB .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1972, 156 (04) :437-&