β Cephei Stars from ASAS: a New Look at Hot Pulsators

被引：0

作者：

Pigulski, Andrzej ^{[1
]}

Pojmanski, Grzegorz ^{[1
]}

机构：

[1] Uniwersytetu Wroclawskiego, Inst Astron, Kopernika 11, PL-51622 Wroclaw, Poland

来源：

STELLAR PULSATION: CHALLENGES FOR THEORY AND OBSERVATION | 2009年 / 1170卷

关键词：

Time-series analysis; Pulsations; oscillations and stellar seismology; Low-amplitude blue variables (beta Cephei); SKY AUTOMATED SURVEY; VARIABLE-STARS; SOUTHERN-HEMISPHERE; NORTHERN-HEMISPHERE; DELTA-CETI; CATALOG; QUARTER; PHOTOMETRY;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The All Sky Automated Survey (ASAS) data, covering nearly 70% of the whole sky south of declination +28 degrees, were recently used to discover about 300 beta Cephei stars brighter than V similar to 11.5 mag. As this means a nearly fourfold increase in the number of known stars of this type, new possibilities in studying these pulsators open up, including statistical work. The homogeneity of the ASAS survey allows us to study their distribution in the local Galaxy. We discuss this distribution in the context of the location of nearby spiral arms. In addition, we show pulsational (periods, amplitudes) properties of the whole sample of known beta Cephei stars. Some objects interesting from the point of view of asteroseismology are also indicated.

引用

页码：351 / +

页数：2

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