Georgy, Cyril 2011 暴周环境的模拟

主要内容:
用前身星的晚期演化
这是会议论文，等正式文章的结果出来

精彩摘抄:


文章信息:

· Find Similar Abstracts (with default settings below)

· arXiv e-print (arXiv:1109.1422)

· References in the Article

· Also-Read Articles (Reads History)

·

· Translate This Page

Title:		Simulating the circum-stellar environment of supernova and GRB progenitors by combining stellar evolution models and hydrodynamical code
Authors:		Georgy, Cyril; Walder, Rolf; Folini, Doris
Publication:		eprint arXiv:1109.1422
Publication Date:		09/2011
Origin:		ARXIV
Keywords:		Astrophysics - Solar and Stellar Astrophysics
Comment:		4 pages, 2 figures. To be published in the proceedings of the 2011 Cefal\`u Conference on "Advances in Computational Astrophysics: methods, tools and outcomes" in PASP
Bibliographic Code:		2011arXiv1109.1422G

Abstract

The medium around massive stars is strongly shaped by the stellar winds. Those winds depend on various stellar parameters (effective temperature, luminosity, chemical composition, rotation, ...), which are varying as a function of the time. Using the wind properties obtained by classical stellar evolution code allows for the multi- D hydrodynamical simulation of the circum-stellar medium accounting for the time variations of the wind. We present here the preliminary results of the simulation of the medium around a fast rotating star. Comparing the results of such simulations with the observed properties of the circum-stellar medium will allow to better understand the interactions of the stellar winds with the interstellar medium, and could give hints on the past history of the mass loss around massive stars, providing constraints for stellar models.

---

Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)