2008A&A...485..859R


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.04CEST20:57:10

2008A&A...485..859R - Astronomy and Astrophysics, volume 485, 859-864 (2008/7-3)

HD 75289Ab revisited. Searching for starlight reflected from a hot Jupiter.

RODLER F., KUERSTER M. and HENNING T.

Abstract (from CDS):

We attempt to detect starlight reflected from a hot Jupiter, orbiting the main-sequence star HD 75289Ab. We report a revised analysis of observations of this planetary system presented previously by another research group. We analyze high-precision, high-resolution spectra, collected over four nights using UVES at the VLT/UT2, by way of data synthesis. We try to interpret our data using different atmospheric models for hot Jupiters. We do not find any evidence for reflected light, and, therefore, establish revised upper limits to the planet-to-star flux ratio at the 99.9% significance level. At high orbital inclinations, where the best sensitivity is attained, we can limit the relative reflected radiation to be less than ε=6.7x10–5 assuming a grey albedo, and ε=8.3x10–5 assuming an Class IV function, respectively. This implies a geometric albedo smaller than p=0.46 and p=0.57, for the grey albedo and the Class IV albedo shape, respectively, assuming a planetary radius of 1.2RJup.

Abstract Copyright:

Journal keyword(s): methods: data analysis - techniques: radial velocities - stars: individual: HD 75289A - stars: planetary systems

Simbad objects: 7

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Number of rows : 7

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 HD 75289 PM* 08 47 40.3895634256 -41 44 12.456269569 7.04 6.94 6.36     F9VFe+0.3 242 1
2 HD 75289b Pl 08 47 40.3895634256 -41 44 12.456269569           ~ 79 1
3 NAME OGLE-TR-111b Pl 10 53 17.8066842748 -61 24 20.606379347           ~ 107 1
4 BD+28 2507b Pl 16 02 11.8463105423 +28 10 10.419642379           ~ 158 1
5 NAME OGLE-TR-10b Pl 17 51 28.2589927588 -29 52 35.232998832           ~ 82 1
6 HD 209458b Pl 22 03 10.7729598762 +18 53 03.548248479           ~ 1468 1
7 NAME BD+37 4734Bb Pl 22 57 46.8443014981 +38 40 30.355384717           ~ 196 1

    Equat.    Gal    SGal    Ecl

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2020.07.04-20:57:10

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