Arid
DOI10.1093/mnras/stab2328
Impact of binary stars on planet statistics - I. Planet occurrence rates and trends with stellar mass
Moe, Maxwell; Kratter, Kaitlin M.
通讯作者Moe, M (corresponding author), Univ Arizona, Steward Observ, 933 N Cherry Ave, Tucson, AZ 85721 USA.
来源期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
EISSN1365-2966
出版年2021
卷号507期号:3页码:3593-3611
英文摘要Close binaries suppress the formation of circumstellar (S-type) planets and therefore significantly bias the inferred planet occurrence rates and statistical trends. After compiling various radial velocity and high-resolution imaging surveys, we determine that binaries with a <1 au fully suppress S-type planets, binaries with a =10 au host close planets at 15(-12)(+17) per cent the occurrence rate of single stars, and wide binaries with a > 200 au have a negligible effect on close planet formation. We show that F = 43 +/- 7 per cent of solar-type primaries in magnitude-limited samples do not host close planets due to suppression by close stellar companions. By removing spectroscopic binaries from their samples, radial velocity surveys for giant planets boost their detection rates by a factor of 1/(1-F) = 1.8 +/- 0.2 compared to transiting surveys. This selection bias fully accounts for the discrepancy in hot Jupiter and close Neptune occurrence rates inferred from these two detection methods. Correcting for both planet suppression by close binaries and transit dilution by wide binaries, the occurrence rate of small planets orbiting single G-dwarfs is 2.1 +/- 0.3 times larger than the rate inferred from all G-dwarfs in the Kepler survey. Additionally, about half (but not all) of the observed increase in small, short-period planets towards low-mass hosts can be explained by the corresponding decrease in the binary fraction.
英文关键词planets and satellites: detection planets and satellites: dynamical evolution and stability planets and satellites: formation planet-star interactions binaries: close binaries: general
类型Article
语种英语
收录类别SCI-E
WOS记录号WOS:000708848000031
WOS关键词BROWN DWARF DESERT ; SOLAR-TYPE STARS ; S-TYPE PLANETS ; A-TYPE STARS ; ALPHA-CENTAURI ; GIANT PLANET ; ECLIPSING BINARIES ; CLOSE BINARIES ; HOT JUPITERS ; MULTIPLICITY
WOS类目Astronomy & Astrophysics
WOS研究方向Astronomy & Astrophysics
来源机构University of Arizona
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/364200
作者单位[Moe, Maxwell; Kratter, Kaitlin M.] Univ Arizona, Steward Observ, 933 N Cherry Ave, Tucson, AZ 85721 USA
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Moe, Maxwell,Kratter, Kaitlin M.. Impact of binary stars on planet statistics - I. Planet occurrence rates and trends with stellar mass[J]. University of Arizona,2021,507(3):3593-3611.
APA Moe, Maxwell,&Kratter, Kaitlin M..(2021).Impact of binary stars on planet statistics - I. Planet occurrence rates and trends with stellar mass.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,507(3),3593-3611.
MLA Moe, Maxwell,et al."Impact of binary stars on planet statistics - I. Planet occurrence rates and trends with stellar mass".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 507.3(2021):3593-3611.
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