2014ApJ...787..131Z


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.09CET16:35:47

2014ApJ...787..131Z - Astrophys. J., 787, 131 (2014/June-1)

Stars get dizzy after lunch.

ZHANG M. and PENEV K.

Abstract (from CDS):

Exoplanet searches have discovered a large number of "hot Jupiters"–high-mass planets orbiting very close to their parent stars in nearly circular orbits. A number of these planets are sufficiently massive and close-in to be significantly affected by tidal dissipation in the parent star, to a degree parameterized by the tidal quality factor Q*. This process speeds up their star's rotation rate while reducing the planet's semimajor axis. In this paper, we investigate the tidal destruction of hot Jupiters. Because the orbital angular momenta of these planets are a significant fraction of their star's rotational angular momenta, they spin up their stars significantly while spiraling to their deaths. Using the Monte Carlo simulation, we predict that for Q*= 106, 3.9x10–6 of stars with the Kepler Target Catalog's mass distribution should have a rotation period shorter than 1/3 day (8 hr) due to accreting a planet. Exoplanet surveys such as SuperWASP, HATnet, HATsouth, and KELT have already produced light curves of millions of stars. These two facts suggest that it may be possible to search for tidally destroyed planets by looking for stars with extremely short rotational periods, then looking for remnant planet cores around those candidates, anomalies in the metal distribution, or other signatures of the recent accretion of the planet.

Abstract Copyright:

Journal keyword(s): accretion, accretion disks - convection - methods: numerical - methods: statistical - planet-star interactions - planetary systems - stars: rotation

Simbad objects: 13

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Number of rows : 13

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 WASP-18b Pl 01 37 25.0335097438 -45 40 40.376513381           ~ 189 1
2 HD 10069 * 01 37 25.0335097438 -45 40 40.376513381   9.74 9.30     F6IV/V 139 1
3 BD+48 740 * 02 42 58.2182761768 +48 55 48.225888943   10.05 8.70     K3III 26 0
4 Cl Melotte 22 OpC 03 47 00 +24 07.0           ~ 2914 0
5 Cl Melotte 25 OpC 04 26 54.00 +15 52 00.0           ~ 2588 0
6 CoRoT-7b Pl 06 43 49.4690410679 -01 03 46.825797768           ~ 331 1
7 NGC 2362 OpC 07 18 41 -24 57.3     4.1     ~ 354 0
8 HAT-P-20 PM* 07 27 39.9487418539 +24 20 11.518276475   12.58 11.35 11.00   K3V 48 1
9 HAT-P-20b Pl 07 27 39.9487418539 +24 20 11.518276475           ~ 50 1
10 NGC 2632 OpC 08 40 24 +19 40.0           ~ 1184 0
11 WASP-19 LP* 09 53 40.0764883458 -45 39 33.055979403   13.05 12.31 12.12 11.35 G8V 123 1
12 WASP-19b Pl 09 53 40.0764883458 -45 39 33.055979403           ~ 218 1
13 * 51 Peg b Pl 22 57 27.9804167474 +20 46 07.782240714           ~ 489 1

    Equat.    Gal    SGal    Ecl

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2019.12.09-16:35:47

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