Applications of TP-AGB synthesis to Mira variables

作     者：Chun-Hua Zhu Guo-Liang Lu Zhao-Jun Wang Jun Zhang 

作者机构：School of Physics Xinjiang University Urumqi 830046 China School of Science Xi＇an Jiaotong University Xi＇an 710049 China 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2009年第9卷第8期

页      面：888-900页

核心收录：

学科分类：0832[工学-食品科学与工程（可授工学、农学学位）] 08[工学] 083201[工学-食品科学] 0836[工学-生物工程] 082203[工学-发酵工程] 0822[工学-轻工技术与工程] 083203[工学-农产品加工及贮藏工程] 

基　　金：funded by the National Natural Science Foundation of China(NSFC) under Nos. 10763001 and 10647003 the Natural Science Foundation of Xinjiang underNo. 2009211B01 the Scientific Research Program of the Higher Education Institution of Xinjiangunder No. XJEDU2008S12 

主　　题：stars Mira variables -- Galaxy stellar content -- stars fundamental parameters 

摘      要：Employing recent TP-AGB synthesis, we have carried out a detailed study of Mira variables by means of a population synthesis code. We estimate that the total number of Mira variables in the Galaxy is from about 100 000 to 600 000 and their average lifetimes are between about 150 000 and 830 000 yr. The ratio of the number of O-Mira variables to that of C-Mira variables ranges from about 0.68 to 6.2. The effects of input physical parameters （mass loss rate, the minimum core mass for the third dredge-up, the third dredge-up efficiency and theoretical criterion for selecting Mira variables） on the Mira population are discussed.