Limits on Planets Around Pulsating White Dwarf Stars

被引：0

作者：

Mullally, Fergal ^{[1
]}

Winget, D. E. ^{[2
]}

Degennaro, Steven ^{[2
]}

Jeffery, Elizabeth ^{[2
]}

Thompson, S. E. ^{[3
]}

Chandler, Dean ^{[4
]}

Kepler, S. O. ^{[5
]}

机构：

[1] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA

[2] Univ Texas Austin, Dept Astron, Austin, TX 78712 USA

[3] Univ Delaware, Dept Phys, Delaware, OH 19716 USA

[4] Meyer Observ, Clifton Pk, NY 76530 USA

[5] Univ Fed Rio Grande do Sul, Inst Fis, BR-91501900 Porto Alegre, RS, Brazil

来源：

EXTREME SOLAR SYSTEMS | 2008年 / 398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 results from an on-going search for planetary companions around pulsating white dwarf stars. A subset of these stars exhibit extreme stability in the amplitude and phase of some of their pulsation modes; a planet can be detected around such a star by searching for periodic variations in the arrival time of these pulsations. We show limits on companions greater than a few Jupiter masses for two stars from our initial sample of 15. One star shows a variation in arrival time consistent with a 2 M-J planet in a 4.5 year orbit.

引用

页码：163 / +

页数：2

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