2020MNRAS.491.4481O

Query : 2020MNRAS.491.4481O

2020MNRAS.491.4481O - Mon. Not. R. Astron. Soc., 491, 4481-4487 (2020/January-3)

Investigating the planet-metallicity correlation for hot Jupiters.

OSBORN A. and BAYLISS D.

Abstract (from CDS):

We investigate the giant planet-metallicity correlation for a homogeneous, unbiased set of 217 hot Jupiters taken from nearly 15 yr of wide-field ground-based surveys. We compare the host star metallicity to that of field stars using the Besancon Galaxy model, allowing for a metallicity measurement offset between the two sets. We find that hot Jupiters preferentially orbit metal-rich stars. However, we find the correlation consistent, though marginally weaker, for hot Jupiters (β =0.71^{+0.56}_{-0.34}) than it is for other longer period gas giant planets from radial velocity surveys. This suggests that the population of hot Jupiters probably formed in a similar process to other gas giant planets, and differ only in their migration histories.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: abundances - stars: fundamental parameters - planetary systems

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 * 51 Peg b Pl 22 57 27.9804852576 +20 46 07.797040104           ~ 744 1

Query : 2020MNRAS.491.4481O

Basic data :
* 51 Peg b -- Extra-solar Planet
Other object types: otypes_help 		Pl? (), * (*,HD), Pl (1995Natur)
ICRS coord. (ep=J2000) : 		22 57 27.9804852576 +20 46 07.797040104 (Optical) [ 0.0535 0.0543 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		22 55 00.3824419857 +20 30 01.119685421 [ 0.0535 0.0543 90 ]
Gal coord. (ep=J2000) : 		090.0626441289023 -34.7272597942784 [ 0.0535 0.0543 90 ]
Proper motions mas/yr : 		207.328 61.164 [0.088 0.075 90] A 2020yCat.1350....0G
Parallaxes (mas): 		64.4048 [0.0771] A 2020yCat.1350....0G
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Hierarchy : number of linked objects
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* 51 Peg b HD 217014b NAME Dimidium

References (744 between 1850 and 2026) (Total 744)
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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