A search for planetary transits of the star HD 187123 by spot filter CCD differential photometry

被引：2

作者：

Castellano, T

机构：

[1] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA

[2] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 2000年 / 112卷 / 772期

关键词：

D O I：

10.1086/316586

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A novel method for performing high-precision, time-series CCD differential photometry of bright stars using a spot filter is demonstrated. Results for several nights of observing of the 51 Pegasi b-type planet-bearing star HD 187123 are presented. Photometric precision of 0.0015-0.0023 mag is achieved. No transits are observed at the epochs predicted from the radial velocity observations. If the planet orbiting HD 187123 at 0.04 AU is an inflated Jupiter similar in radius to HD 209458b, it would have been detected at greater than the 6 sigma level if the orbital inclination is near 90 degrees and at greater than the 3 sigma level if the orbital inclination is as small as 82 degrees.7.

引用

页码：821 / 826

页数：6

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