2005A&A...444L..15B


Query : 2005A&A...444L..15B

2005A&A...444L..15B - Astronomy and Astrophysics, volume 444, L15-19 (2005/12-2)

ELODIE metallicity-biased search for transiting Hot Jupiters. II. A very hot Jupiter transiting the bright K star HD 189733.

BOUCHY F., UDRY S., MAYOR M., MOUTOU C., PONT F., IRIBARNE N., DA SILVA R., ILOVAISKY S., QUELOZ D., SANTOS N.C., SEGRANSAN D. and ZUCKER S.

Abstract (from CDS):

Among the 160 known exoplanets, mainly detected in large radial-velocity surveys, only 8 have a characterization of their actual mass and radius thanks to the two complementary methods of detection: radial velocities and photometric transit. We started in March 2004 an exoplanet-search programme biased toward high-metallicity stars which are more frequently host extra-solar planets. This survey aims to detect close-in giant planets, which are most likely to transit their host star. For this programme, high-precision radial velocities are measured with the ELODIE fiber-fed spectrograph on the 1.93-m telescope, and high-precision photometry is obtained with the CCD Camera on the 1.20-m telescope, both at the Haute-Provence Observatory. We report here the discovery of a new transiting hot Jupiter orbiting the star HD189733. The planetary nature of this object is confirmed by the observation of both the spectroscopic and photometric transits. The exoplanet HD189733b, with an orbital period of 2.219-days, has one of the shortest orbital periods detected by radial velocities, and presents the largest photometric depth in the light curve (∼3%) observed to date. We estimate for the planet a mass of 1.15±0.04MJ and a radius of 1.26±0.03RJ. Considering that HD189733 has the same visual magnitude as the well known exoplanet host star HD209458, further ground-based and space-based follow-up observations are very promising and will permit a characterization of the atmosphere and exosphere of this giant exoplanet.

Abstract Copyright:

Journal keyword(s): stars: individual: HD 189733 - planetary systems - techniques: radial velocities - techniques: photometry

Simbad objects: 14

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Number of rows : 14
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NAME OGLE-TR-132b Pl 10 50 34.5945727713 -61 57 26.140283621           ~ 102 1
2 NAME OGLE-TR-113b Pl 10 52 24.2808297652 -61 26 48.845891762           ~ 113 1
3 NAME OGLE-TR-111b Pl 10 53 17.8066842748 -61 24 20.606379347           ~ 109 1
4 HD 118203 PM* 13 34 02.5393988472 +53 43 42.698012376   8.75 8.06     G0V 77 1
5 HD 149026b Pl 16 30 29.6184841164 +38 20 50.310893575           ~ 321 1
6 HD 149026 PM* 16 30 29.6185771608 +38 20 50.308980864   8.75 8.14     G0IV 211 1
7 HD 149143 PM* 16 32 51.0507175368 +02 05 05.380313604   8.56 7.89     G3V 87 1
8 NAME OGLE-TR-10b Pl 17 51 28.2589927588 -29 52 35.232998832           ~ 84 1
9 NAME OGLE-TR-56b Pl 17 56 35.5015759807 -29 32 21.476706712           ~ 196 1
10 NAME V672 Lyr b Pl 19 04 09.8516024106 +36 37 57.445911611           ~ 319 1
11 HD 189733 BY* 20 00 43.7129433648 +22 42 39.073143456 9.241 8.578 7.648 7.126 6.68 K2V 799 1
12 HD 189733b Pl 20 00 43.7130382888 +22 42 39.071811263           ~ 1253 1
13 HD 209458 V* 22 03 10.7727465312 +18 53 03.549393384   8.21 7.63     F9V 1042 1
14 HD 209458b Pl 22 03 10.7729598762 +18 53 03.548248479           ~ 1666 1

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2022.05.24-11:43:35

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