2009ApJ...692L...9L


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.30CET22:27:44

2009ApJ...692L...9L - Astrophys. J., 692, L9-L13 (2009/February-2)

Falling transiting extrasolar giant planets.

LEVRARD B., WINISDOERFFER C. and CHABRIER G.

Abstract (from CDS):

We revisit the tidal stability of extrasolar systems harboring a transiting planet and demonstrate that, independently of any tidal model, none, but one (HAT-P-2b) of these planets has a tidal equilibrium state, which implies ultimately a collision of these objects with their host star. Consequently, conventional circularization and synchronization timescales cannot be defined because the corresponding states do not represent the endpoint of the tidal evolution. Using numerical simulations of the coupled tidal equations for the spin and orbital parameters of each transiting planetary system, we confirm these predictions and show that the orbital eccentricity and the stellar obliquity do not follow the usually assumed exponential relaxation but instead decrease significantly, eventually reaching a zero value only during the final runaway merging of the planet with the star. The only characteristic evolution timescale of all rotational and orbital parameters is the lifetime of the system, which crucially depends on the magnitude of tidal dissipation within the star. These results imply that the nearly circular orbits of transiting planets and the alignment between the stellar spin axis and the planetary orbit are unlikely to be due to tidal dissipation. Other dissipative mechanisms, for instance interactions with the protoplanetary disk, must be invoked to explain these properties.

Abstract Copyright:

Journal keyword(s): celestial mechanics - planetary systems: formation - planetary systems: protoplanetary disks

VizieR on-line data: <Available at CDS (J/ApJ/692/L9): table1.dat>

Simbad objects: 51

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Number of rows : 51

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 WASP-1b Pl 00 20 40.0746033057 +31 59 23.953709844           ~ 120 1
2 WASP-1 V* 00 20 40.0746033057 +31 59 23.953709844   12.06 11.31     F7V 105 1
3 HD 17156b Pl 02 49 44.4866941172 +71 45 11.632197644           ~ 161 1
4 HD 17156 PM* 02 49 44.4866941172 +71 45 11.632197644   8.78 8.16     G0 147 2
5 BD+50 1471b Pl 07 48 06.4726006390 +50 13 32.921121328           ~ 135 1
6 NAME OGLE-TR-132b Pl 10 50 34.5945727713 -61 57 26.140283621           ~ 101 1
7 OGLE-TR 132 V* 10 50 34.5945727713 -61 57 26.140283621         15.72 F 94 1
8 NAME OGLE-TR-113b Pl 10 52 24.2808297652 -61 26 48.845891762           ~ 113 1
9 OGLE-TR 113 SB* 10 52 24.2808297652 -61 26 48.845891762     16.08 15.41 14.42 K 112 1
10 OGLE-TR 111 V* 10 53 17.8066842748 -61 24 20.606379347     16.96 16.05 15.55 G 90 1
11 NAME OGLE-TR-111b Pl 10 53 17.8066842748 -61 24 20.606379347           ~ 109 1
12 NAME OGLE-TR 182b Pl 11 09 18.7248184151 -61 05 42.963716098           ~ 35 1
13 OGLE-TR 182 * 11 09 18.7248184151 -61 05 42.963716098     16.84 16.37   ~ 33 1
14 Ross 905 PM* 11 42 11.0933874353 +26 42 23.658083337   12.06 10.613 10.272 8.24 M3V 509 1
15 Ross 905b Pl 11 42 11.0933874353 +26 42 23.658083337           ~ 616 1
16 HAT-P-3b Pl 13 44 22.5939154049 +48 01 43.206257583           ~ 71 1
17 HAT-P-3 * 13 44 22.5939154049 +48 01 43.206257583   12.53 11.86     ~ 68 1
18 BD+36 2593b Pl 15 19 57.9205371377 +36 13 46.737977732           ~ 66 1
19 BD+36 2593 * 15 19 57.9205371377 +36 13 46.737977732   11.83 11.12     F 84 1
20 BD+28 2507 V* 16 02 11.8463105423 +28 10 10.419642379   11.88 11.25     G1V 91 1
21 BD+28 2507b Pl 16 02 11.8463105423 +28 10 10.419642379           ~ 160 1
22 HD 147506b Pl 16 20 36.3579144486 +41 02 53.109043943           ~ 215 1
23 HD 147506 * 16 20 36.3579144486 +41 02 53.109043943   9.15 8.69     F8V 140 2
24 HD 149026b Pl 16 30 29.6184841164 +38 20 50.310893575           ~ 299 1
25 HD 149026 PM* 16 30 29.6184841164 +38 20 50.310893575   8.75 8.14     G0IV 198 1
26 OGLE-TR 10 EB* 17 51 28.2589927588 -29 52 35.232998832     15.780 16.193 14.92 G2V 84 1
27 NAME OGLE-TR-10b Pl 17 51 28.2589927588 -29 52 35.232998832           ~ 84 1
28 1SWASP J175207.01+373246.3 V* 17 52 07.0185036683 +37 32 46.237002085   13.114 12.402 12.06 11.603 G 63 1
29 TrES-3 Pl 17 52 07.0185036683 +37 32 46.237002085           ~ 199 2
30 TYC 2620-648-1 * 17 53 13.0490781575 +37 12 42.586106196   12.112 11.592     F8 41 2
31 TrES-4 Pl 17 53 13.0490781575 +37 12 42.586106196           ~ 184 2
32 NAME OGLE-TR-56b Pl 17 56 35.5015759807 -29 32 21.476706712           ~ 195 1
33 OGLE-TR 56 EB* 17 56 35.5015759807 -29 32 21.476706712     16.560 16.07 15.30 ~ 160 1
34 HAT-P-5 * 18 17 37.3127577964 +36 37 17.168584830   12.92 11.95     G1V 52 1
35 HAT-P-5b Pl 18 17 37.3127577964 +36 37 17.168584830           ~ 54 1
36 BD+35 3293 V* 18 34 31.6255913635 +35 39 41.489193276   11.07 10.63 10.52   F7V 110 1
37 BD+35 3293b Pl 18 34 31.6255913635 +35 39 41.489193276           ~ 101 1
38 V* V672 Lyr V* 19 04 09.8516024106 +36 37 57.445911611   12.35 11.42     K0V 101 1
39 NAME V672 Lyr b Pl 19 04 09.8516024106 +36 37 57.445911611           ~ 312 1
40 Kepler-1b Pl 19 07 14.0379171930 +49 18 59.090895318           ~ 287 2
41 Kepler-1 Er* 19 07 14.0379171930 +49 18 59.090895318   11.85 11.25     G0V 153 2
42 HD 189733 BY* 20 00 43.7130382888 +22 42 39.071811263 9.241 8.578 7.648 7.126 6.68 K2V 737 1
43 HD 189733b Pl 20 00 43.7130382888 +22 42 39.071811263           ~ 1122 1
44 WASP-2b Pl 20 30 54.1279218812 +06 25 46.338261893           ~ 91 1
45 WASP-2 ** 20 30 54.1279218812 +06 25 46.338261893   13 11.98     K1.5+M1V-M4V 118 2
46 HD 209458 V* 22 03 10.7729598762 +18 53 03.548248479   8.21 7.63     F9V 1003 1
47 HD 209458b Pl 22 03 10.7729598762 +18 53 03.548248479           ~ 1520 1
48 NAME BD+37 4734Bb Pl 22 57 46.8443014981 +38 40 30.355384717           ~ 205 1
49 BD+37 4734B PM* 22 57 46.8443014981 +38 40 30.355384717   10.82 9.87     G0V 143 1
50 BD+41 4831b Pl 23 39 05.8101319829 +42 27 57.503480354           ~ 70 1
51 BD+41 4831 * 23 39 05.8101319829 +42 27 57.503480354   10.88 10.47     F8V 70 1

    Equat.    Gal    SGal    Ecl

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2020.11.30-22:27:44

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