Preliminary Photometric Evidence of Starspot Umbrae and Penumbrae on Late-Type Active Stars

被引：0
|
作者：
Sergio Messina
Edward F. Guinan
机构：
[1] INAF-Catania Astrophysical Observatory,Dept. of Astronomy and Astrophysics
[2] Villanova Univ.,undefined
来源：
Astrophysics and Space Science | 2006年 / 304卷
关键词：
Stars: Late-type; Stars: Spots; Stars: Photometry; Stars: DX Leonis;
D O I：
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中图分类号：
学科分类号：
摘要：
We constrain the properties of the spotted regions on the photosphere of the active late-type star DX Leonis by comparing the observed amplitudes of light and color variations with synthetic amplitudes obtained by means of Dorren's spot model and computed for a grid of values of spot temperatures, areas and latitudes.
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页码：191 / 193
页数：2
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