2022ApJ...926L..17R

Query : 2022ApJ...926L..17R

2022ApJ...926L..17R - Astrophys. J., 926, L17-L17 (2022/February-3)

Origins of Hot Jupiters from the Stellar Obliquity Distribution.

RICE M., WANG S. and LAUGHLIN G.

Abstract (from CDS):

The obliquity of a star, or the angle between its spin axis and the average orbit normal of its companion planets, provides a unique constraint on that system's evolutionary history. Unlike the solar system, where the Sun's equator is nearly aligned with its companion planets, many hot-Jupiter systems have been discovered with large spin-orbit misalignments, hosting planets on polar or retrograde orbits. We demonstrate that, in contrast to stars harboring hot Jupiters on circular orbits, those with eccentric companions follow no population-wide obliquity trend with stellar temperature. This finding can be naturally explained through a combination of high-eccentricity migration and tidal damping. Furthermore, we show that the joint obliquity and eccentricity distributions observed today are consistent with the outcomes of high-eccentricity migration, with no strict requirement to invoke the other hot-Jupiter formation mechanisms of disk migration or in situ formation. At a population-wide level, high-eccentricity migration can consistently shape the dynamical evolution of hot-Jupiter systems.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Exoplanet dynamics - Exoplanet astronomy - Exoplanet evolution - Planetary alignment - Star-planet interactions - Exoplanet systems - Hot Jupiters - Exoplanets - Planetary dynamics - Exoplanet migration - Exoplanet tides - Planetary theory

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 HD 80606 PM* 09 22 37.5768032712 +50 36 13.435326684   9.78 9.00     G8V 366 2

Query : 2022ApJ...926L..17R

Basic data :
HD 80606 -- High Proper Motion Star
Other object types: otypes_help 		* (2018MNRAS,HD,...), ** (**,BDS,...), V* (CSV,NSV), PM* (2016A&A), NIR (2MASS)
ICRS coord. (ep=J2000) : 		09 22 37.5768032712 +50 36 13.435326684 (Optical) [ 0.0127 0.0114 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		09 19 11.3045188533 +50 49 03.031595446 [ 0.0127 0.0114 90 ]
Gal coord. (ep=J2000) : 		167.4292016334893 +44.3112279417672 [ 0.0127 0.0114 90 ]
Proper motions mas/yr : 		56.022 10.331 [0.015 0.015 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 3.965 [0.0031] / z(spectroscopic) 0.000013 [0.000000] / cz 3.97 [0.00]
   (Opt) A 2018A&A...616A...7S
Parallaxes (mas): 		15.1439 [0.017] A 2020yCat.1350....0G
Spectral type: 		G8V C 2018MNRAS.481.3244G
Fluxes (6) :
B 9.78 [0.03] D 2000A&A...355L..27H
V 9.00 [0.02] D 2000A&A...355L..27H
G 8.828991 [0.002760] C 2020yCat.1350....0G
J 7.702 [0.030] C 2003yCat.2246....0C
H 7.400 [0.034] C 2003yCat.2246....0C
K 7.316 [0.020] C 2003yCat.2246....0C
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1 		Display criteria :

Identifiers (30) :
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HD 80606 CSI+51 1500 2 2MASS J09223756+5036134 uvby98 100080606
** STF 1341B CSV 101040 NSV 4463 WDS J09227+5036B
AG+50 786 GC 12912 PPM 32122 YZ 50 3367
AGKR 8437 GEN# +1.00080606 SAO 27230 Gaia DR3 1019003226022657920
BD+51 1500 GSC 03431-00046 SPOCS 421 Gaia DR2 1019003226022657920
BD+51 1500B HIC 45982 SV* ZI 748 Gaia DR1 1019003221726733696
BDS 5037 B HIP 45982 TIC 457134360
CCDM J09226+5036B IDS 09158+5102 B TYC 3431-46-1

References (366 between 1850 and 2026) (Total 366)
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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Collections of Measurements Description of Measurements

Velocities : 8    Diameter : 1    Distance : 2    Rot : 7    Fe/H : 31    Plx : 5    PM : 7    SpT : 2   

   

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HD 80606 AG+50 786 BD+51 1500 CCDM J09226+5036B GSC 03431-00046
HIC 45982 HIP 45982 2MASS J09223756+5036134 NSV 4463 PPM 32122
SAO 27230 TYC 3431-46-1 uvby98 100080606 WDS J09227+5036B Gaia DR3 1019003226022657920
Gaia DR2 1019003226022657920 Gaia DR1 1019003221726733696

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Notes (1) :

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