2018MNRAS.476.2542C


C.D.S. - SIMBAD4 rel 1.7 - 2020.04.05CEST00:01:28

2018MNRAS.476.2542C - Mon. Not. R. Astron. Soc., 476, 2542-2555 (2018/May-2)

Hierarchical Bayesian calibration of tidal orbit decay rates among hot Jupiters.

COLLIER CAMERON A. and JARDINE M.

Abstract (from CDS):

Transiting hot Jupiters occupy a wedge-shaped region in the mass ratio-orbital separation diagram. Its upper boundary is eroded by tidal spiral-in of massive, close-in planets and is sensitive to the stellar tidal dissipation parameter Q_ s_. We develop a simple generative model of the orbital separation distribution of the known population of transiting hot Jupiters, subject to tidal orbital decay, XUV-driven evaporation and observational selection bias. From the joint likelihood of the observed orbital separations of hot Jupiters discovered in ground-based wide-field transit surveys, measured with respect to the hyperparameters of the underlying population model, we recover narrow posterior probability distributions for Q_ s_ in two different tidal forcing frequency regimes. We validate the method using mock samples of transiting planets with known tidal parameters. We find that Q_ s_ and its temperature dependence are retrieved reliably over five orders of magnitude in Q_ s_. A large sample of hot Jupiters from small-aperture ground-based surveys yields log10 Q_ s_^′^=(8.26±0.14) for 223 systems in the equilibrium-tide regime. We detect no significant dependence of Q_ s_ on stellar effective temperature. A further 19 systems in the dynamical-tide regime yield log10 Q_ s_^′^=7.3±0.4, indicating stronger coupling. Detection probabilities for transiting planets at a given orbital separation scale inversely with the increase in their tidal migration rates since birth. The resulting bias towards younger systems explains why the surface gravities of hot Jupiters correlate with their host stars' chromospheric emission fluxes. We predict departures from a linear transit-timing ephemeris of less than 4 s for WASP-18 over a 20-yr baseline.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): methods: statistical - planets and satellites: dynamical evolution and stability - planetary systems - planet-star interactions

Status at CDS:  

Simbad objects: 36

goto Full paper

goto View the reference in ADS

Number of rows : 36

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           ~ 200 1
2 HD 10069 * 01 37 25.0335097438 -45 40 40.376513381   9.74 9.30     F6IV/V 145 1
3 HAT-P-32b Pl 02 04 10.2775457769 +46 41 16.210382751           ~ 80 1
4 HD 15082b Pl 02 26 51.0582746497 +37 33 01.737746137           ~ 169 1
5 XO-3b Pl 04 21 52.7044170433 +57 49 01.892074012           ~ 171 1
6 WASP-79b Pl 04 25 29.0168304676 -30 36 01.610961515           ~ 38 1
7 WASP-61b Pl 05 01 11.9187094514 -26 03 14.966761305           ~ 14 1
8 KELT-7b Pl? 05 13 10.9287552017 +33 19 05.403226195           ~ 24 0
9 WASP-62b Pl 05 48 33.5937810570 -63 59 18.386834103           ~ 24 1
10 WASP-12b Pl 06 30 32.7966788910 +29 40 20.266334158           G0 512 1
11 WASP-101b Pl 06 33 24.2672798716 -23 29 10.296975033           ~ 16 0
12 HAT-P-24b Pl 07 15 18.0194123517 +14 15 45.409653547           ~ 25 1
13 HAT-P-9b Pl 07 20 40.4562402899 +37 08 26.342807726           ~ 52 1
14 HAT-P-33b Pl 07 32 44.2170736940 +33 50 06.118002888           ~ 29 1
15 HAT-P-39b Pl 07 35 01.9794135519 +17 49 48.234882594           ~ 15 1
16 NAME XO-2Sb Pl? 07 48 07.4814220176 +50 13 03.257811342           ~ 4 0
17 WASP-84b Pl? 08 44 25.7032891140 +01 51 36.106556176           ~ 14 0
18 WASP-19 LP* 09 53 40.0764883458 -45 39 33.055979403   13.05 12.31 12.12 11.35 G8V 125 1
19 WASP-19b Pl 09 53 40.0764883458 -45 39 33.055979403           ~ 232 1
20 WASP-66b Pl 10 32 53.9927339246 -34 59 23.456873048           ~ 12 1
21 WASP-106b Pl? 11 05 43.1363626513 -05 04 45.941304907           ~ 6 0
22 HATS-18b Pl? 11 35 49.7771099628 -29 09 21.753959414           ~ 14 0
23 WASP-17b Pl 15 59 50.9489706053 -28 03 42.309432433           ~ 194 1
24 WASP-38b Pl 16 15 50.3652643210 +10 01 57.284401784           ~ 36 1
25 HD 147506b Pl 16 20 36.3579144486 +41 02 53.109043943           ~ 209 1
26 WASP-103b Pl 16 37 15.5753608801 +07 11 00.119024745           ~ 73 1
27 HAT-P-14b Pl 17 20 27.8782981532 +38 14 31.909663582           ~ 51 1
28 TrES-1 Pl 19 04 09.8516024106 +36 37 57.445911611           ~ 310 1
29 HAT-P-41b Pl 19 49 17.4399552361 +04 40 20.783585782           ~ 20 1
30 HAT-P-34b Pl 20 12 46.8867073562 +18 06 17.399935067           ~ 26 1
31 HD 195689b Pl? 20 31 26.3534038246 +39 56 19.765154336           ~ 60 0
32 HD 197286b Pl 20 44 10.2207500229 -39 13 30.859306335           ~ 49 1
33 KELT-16b Pl? 20 57 04.4386615783 +31 39 39.629670391           ~ 15 0
34 WASP-21b Pl 23 09 58.2534148377 +18 23 45.882492621           ~ 39 1
35 WASP-21 * 23 09 58.2534148377 +18 23 45.882492621   12.12 11.55 11.52   G3V 37 1
36 WASP-59b Pl 23 18 29.54 +24 53 21.4           ~ 25 1

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2018MNRAS.476.2542C and select 'bookmark this link' or equivalent in the popup menu


2020.04.05-00:01:28

© Université de Strasbourg/CNRS

    • Contact