DOPPLER IMAGING OF THE T-TAURI STAR HDE-283572

被引：0
|
作者：
JONCOUR, I
BERTOUT, C
BOUVIER, J
机构：
来源：
ASTRONOMY & ASTROPHYSICS | 1994年 / 291卷 / 02期
关键词：
HDE; 283572; T TAURI STARS; DOPPLER IMAGING; PHOTOSPHERIC SPOTS;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present Doppler images of the surface temperature distribution of the rapidly rotating weak-emission line T Tauri star HDE 283572, as computed from the FeI lambda 6400 Angstrom, FeI lambda 6393 Angstrom, CaI lambda 6439 Angstrom, and LiI lambda 6707 Angstrom photospheric lines. This analysis reveals the presence of one large polar structure 1600 K colder than the surrounding photosphere. We also find a possible rotational modulation of the H-alpha and CaII equivalent line widths that suggests the presence of large-scale chromospheric structures above the stellar surface.
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页码：L19 / L22
页数：4
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