2025RNAAS...9..130W

Query : 2025RNAAS...9..130W

2025RNAAS...9..130W - Research Notes of the AAS, 9, 130 (2025/May-0)

Growing Pains: Binaries Suppress Planetary Systems at a Young Age.

WERBER Z.

Abstract (from CDS):

Planet-hosting stars in the Kepler field have been shown to disfavor a close (ρ < 50 au) stellar companion compared to field binary rates, suggesting a suppression of the occurrence of planets by close binaries. I analyzed 78 young (<500 Myr), transiting planetary systems for stellar multiplicity to determine if this suppression is still seen at young ages. Based on Gaia common proper motion, RUWE values, and a literature review, I found 21 planet-hosting stars to be in binary systems, with 4 being closely separated. This close binary rate (5.1% ± 3.4%) is less than the field binary rate (15.2% ± 2.0%), suggesting that the suppression of planetary systems by binaries must occur at very early ages, which is consistent with rapid disk dissipation and dynamic instability models.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Exoplanet astronomy - Planet hosting stars - Close binary stars

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME beta Pic Moving Group MGr 14 30 -42.0           ~ 894 0

Query : 2025RNAAS...9..130W

Basic data :
NAME beta Pic Moving Group -- Moving Group
Other object types: otypes_help 		MGr (), As* ()
ICRS coord. (ep=J2000) : 		14 30 00.0 -42 00 00 [ ] E ~
FK4 coord. (ep=B1950 eq=1950) : 		14 26 50.1 -41 46 40 [ ]
Gal coord. (ep=J2000) : 		321.8597 +17.2206 [ ]
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Hierarchy : number of linked objects
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Identifiers (6) :
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NAME beta Pic Moving Group NAME bPMG
NAME beta Pic Association NAME beta Pictoris Moving Group

References (894 between 1850 and 2026) (Total 894)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Distance : 1   

   

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