ON LOCAL STELLAR AGE DISTRIBUTIONS AND THE HISTORY OF THE STELLAR BIRTHRATE IN THE GALACTIC DISK

被引：3
|
作者：
MEUSINGER, H
机构：
[1] Zentralinstitut für Astrophysik, Karl-Schwarzschild-Observatorium, Tautenburg
来源：
ASTRONOMISCHE NACHRICHTEN | 1991年 / 312卷 / 04期
关键词：
GALACTIC DISK; STELLAR BIRTHRATE;
D O I：
10.1002/asna.2113120403
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The fraction of nearby stars born at different galactocentric radii is roughly estimated using the epicyclic approximation of stellar orbits in the galactic disk. Especially, the question of a possible burst origin of features in the local stellar age distribution is discussed. If the "bump" at about 4 Gyr in the frequency distribution of stellar isochrone ages (MEUSINGER 1991) is explained by star formation events then they have been locally at the solar galactocentric distance or globally in the whole disk.
引用
收藏
页码：231 / 237
页数：7
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