2011A&A...535A..50M


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.19CEST05:15:49

2011A&A...535A..50M - Astronomy and Astrophysics, volume 535A, 50-50 (2011/11-1)

A binary merger origin for inflated hot Jupiter planets.

MARTIN E.L., SPRUIT H.C. and TATA R.

Abstract (from CDS):

We hypothesize that hot Jupiters with inflated sizes represent a separate planet formation channel, the merging of two low-mass stars. We show that the abundance and properties of W UMa stars and low mass detached binaries are consistent with their being possible progenitors. The degree of inflation of the transiting hot Jupiters correlates with their expected spiral-in life time by tidal dissipation, and this could indicate youth if the stellar dissipation parameter Q'* is sufficiently low. Several Jupiter-mass planets can form in the massive compact disk formed in a merger event. Gravitational scattering between them can explain the high incidence of excentric, inclined, and retrograde orbits. If the population of inflated planets is indeed formed by a merger process, their frequency should be much higher around blue stragglers than around T Tauri stars.

Abstract Copyright:

Journal keyword(s): planets and satellites: formation - binaries: eclipsing - planets and satellites: dynamical evolution and stability - blue stragglers - methods: statistical

Simbad objects: 8

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Number of rows : 8

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 NGC 104 GlC 00 24 05.359 -72 04 53.20   5.78 4.09     ~ 3463 0
2 HD 15082 dS* 02 26 51.0582746497 +37 33 01.737746137   8.41 8.14     kA5hA8mF4 127 1
3 WASP-12b Pl 06 30 32.7966788910 +29 40 20.266334158           G0 486 1
4 V* V838 Mon CV* 07 04 04.8222936785 -03 50 50.637499515   15.5   15.18 14.51 M10+B3V 362 0
5 HD 113984 ** 13 07 19.7044474 +00 35 05.842180           F5V 47 0
6 V* V1309 Sco CV* 17 57 32.9383021931 -30 43 09.967391199   16.9   14.8   ~ 163 0
7 CoRoT-11 EB* 18 42 44.9499508376 +05 56 15.652163640   13.73 12.939     F6V 41 1
8 CoRoT-11b Pl 18 42 44.9499508376 +05 56 15.652163640           ~ 35 1

    Equat.    Gal    SGal    Ecl

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2019.10.19-05:15:49

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