A SEARCH FOR PLANETARY ECLIPSES OF WHITE DWARFS IN THE Pan-STARRS1 MEDIUM-DEEP FIELDS

被引：28

作者：

Fulton, B. J. ^{[1
]}

Tonry, J. L. ^{[1
]}

Flewelling, H. ^{[1
]}

Burgett, W. S. ^{[1
]}

Chambers, K. C. ^{[1
]}

Hodapp, K. W. ^{[1
]}

Huber, M. E. ^{[1
]}

Kaiser, N. ^{[1
]}

Wainscoat, R. J. ^{[1
]}

Waters, C. ^{[1
]}

机构：

[1] Univ Hawaii Manoa, Inst Astron, Honolulu, HI 96822 USA

来源：

ASTROPHYSICAL JOURNAL | 2014年 / 796卷 / 02期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

planets and satellites: detection; white dwarfs; BROWN DWARF; PROPER MOTION; MINIMUM MASS; SURVEY; I; STARS; COMPANIONS; EXOPLANETS; BINARY; SUBSTELLAR; EVOLUTION;

D O I：

10.1088/0004-637X/796/2/114

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a search for eclipses of similar to 1700 white dwarfs (WDs) in the Pan-STARRS1 medium-deep fields. Candidate eclipse events are selected by identifying low outliers in over 4.3 million light curve measurements. We find no short-duration eclipses consistent with being caused by a planetary size companion. This large data set enables us to place strong constraints on the close-in planet occurrence rates around WDs for planets as small as 2 R-circle plus. Our results indicate that gas giant planets orbiting just outside the Roche limit are rare, occurring around less than 0.5% of WDs. Habitable-zone super-Earths and hot super-Earths are less abundant than similar classes of planets around main-sequence stars. These constraints provide important insight into the ultimate fate of the large population of exoplanets orbiting main-sequence stars.

引用

页数：9

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