The distribution of the emission measure, and of the heating budget, among the loops in the corona

被引:21
作者
Peres, G
Orlando, S
Reale, F
Rosner, R
机构
[1] Dipartimento Sci Fis & Astron, Sez Astron, I-90134 Palermo, Italy
[2] Osserv Astron Palermo, I-90134 Palermo, Italy
[3] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA
[4] Univ Chicago, Dept Phys, Chicago, IL 60637 USA
[5] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA
关键词
stars : coronae; Sun : corona; Sun; X-rays; gamma rays; X-rays : stars;
D O I
10.1086/323769
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The aim of this paper is to validate a methodology for connecting the emission measure of individual solar coronal loops to the integrated emission measure of the entire solar corona and using this connection to deduce the energetic properties of the corona; we then show how this methodology can be applied to observations of solar-like stellar coronae. The solar validation is carried out by using spatially resolved X-ray observations of the Sun obtained from the Yohkoh satellite. This work is a further step in our effort to place the "solar-stellar connection" on a quantitative footing. In particular, we show how this analysis procedure can be used in the context of archival Einstein, ROSAT, and EUVE data, as well as for Chandra and XMM-Newton data, as a complementary analysis tool to existing multithermal component models.
引用
收藏
页码:1045 / 1054
页数:10
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