The Vienna-KPNO search for Doppler-imaging candidate stars. I. First spectroscopic results

被引：0

作者：

Strassmeier, KG ^{[1
]}

Washuettl, A ^{[1
]}

Granzer, T ^{[1
]}

Scheck, M ^{[1
]}

Weber, M ^{[1
]}

机构：

[1] Univ Vienna, Inst Astron, A-1180 Vienna, Austria

来源：

STELLAR CLUSTERS AND ASSOCIATIONS: CONVECTION, ROTATION, AND DYNAMOS | 2000年 / 198卷

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present first results from a spectroscopic Ca II H&K survey of 1058 late-type stars selected from a color-limited subsample of the Hipparcos catalog. Out of these 1058 stars, 371 stars were found to show significant H&K emission, most of them previously unknown. Red-wavelength spectroscopic and photometric follow-up observations of the stars that were found to exhibit H&K emission are used to determine the absolute Ha-core flux, the lithium abundance, the rotational velocity, the radial velocity, and the light variation and its periodicity. The latter is interpreted as the stellar rotation period due to spots. Many new Doppler-imaging candidate stars are identified. See Granter & Strassmeier (1999) for the photometric part of the survey.

引用

页码：487 / 490

页数：4

共 12 条

[1] The Vienna-KPNO search for Doppler-imaging candidate stars. II. First photometric results
Granzer, T
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STELLAR CLUSTERS AND ASSOCIATIONS: CONVECTION, ROTATION, AND DYNAMOS, 2000, 198 : 491 - 494
[2] The Vienna-KPNO search for Doppler-imaging candidate stars I. A catalog of stellar-activity indicators for 1058 late-type Hipparcos stars
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