Rapid Binary Stellar Population Synthesis
Binary stars are common and it is necessary to model stellar populations using binary stars. We introduce a method to model binary-star stellar populations quickly. The method can also be used to model singlestar stellar populations. The method is called rapid stellar population synthesis and it is based on a statistical isochrone database of both single- and bianry-star stellar populations. The database can be obtained easily from the CDS (or on request to the authors) and can be used conveniently for most stellar population studies and colour-magnitude fits. The main feature of using such a technique for modeling stellar populations is that it can save much computing time. Comparing to the method which evolves binary-stars using stellar evolution codes directly, the rapid stellar population synthesis method takes only one of 200,000 of the computing time. Although we can use the database to model stellar populations quickly, the involved uncertainties in spectra synthesis is small (～ 0.8％). I also introduce the method that uses the spectral energy distributions (SEDs) of single stellar populations to model the SEDs of composite populations.
galaxies stellar content galaxies evolution galaxies formation
Zhongmu Li
College of Physics and Electrical Information, Dali University, Dali, 671003, China
国际会议
The 10th Asian-Pacific Regional International Astronomical Union Meeting(第十届亚洲及太平洋地区天文学大会 APRIM)
昆明
英文
312-313
2008-08-03（万方平台首次上网日期，不代表论文的发表时间）