2007A&A...475..729F


Query : 2007A&A...475..729F

2007A&A...475..729F - Astronomy and Astrophysics, volume 475, 729-746 (2007/11-4)

Interpreting and predicting the yield of transit surveys: giant planets in the OGLE fields.

FRESSIN F., GUILLOT T., MORELLO V. and PONT F.

Abstract (from CDS):

Transiting extrasolar planets are now discovered jointly by photometric surveys and by radial velocimetry, allowing measurements of their radius and mass. We want to determine whether the different data sets are compatible between themselves and with models of the evolution of extrasolar planets. We further want to determine whether to expect a population of dense Jupiter-mass planets to be detected by future more sensitive transit surveys. We directly simulate a population of stars corresponding to the OGLE transit survey and assign them planetary companions based on a list of 153 extrasolar planets discovered by radial velocimetry. We use a model of the evolution and structure of giant planets that assumes that they are made of hydrogen and helium and of a variable fraction of heavy elements (between 0 and 100M). The output list of detectable planets of the simulations is compared to the real detections. We confirm that the radial velocimetry and photometric survey data sets are compatible within the statistical errors, assuming that planets with periods between 1 and 2 days are approximately 5 times less frequent than planets with periods between 2 and 5 days. We show that evolution models fitting present observational constraints predict a lack of small giant planets with large masses. As a side result of the study, we identify two distinct populations of planets: those with short periods (P<10d), which are found in orbit only around metal-rich stars with [Fe/H]≳-0.07, and those on longer orbits (P>10d), for which the metallicity bias is less marked. We further confirm the relative absence of low-mass giant planets at small orbital distances. Testing these results and the underlying planetary evolution models requires the detection of a statistically significant number of transiting planets, which should be provided over the next few years by continued ground-based photometric surveys, the space missions CoRoT and Kepler, and combined radial velocity measurements.

Abstract Copyright:

Journal keyword(s): stars: planetary systems: formation - surveys - techniques: photometric - methods: data analysis - stars: planetary systems

Simbad objects: 21

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Number of rows : 21
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 WASP-1 V* 00 20 40.0745768856 +31 59 23.954809596   12.06 11.31     F7V 110 1
2 HD 41004B * 05 59 49.6473573887 -48 14 22.805780232   13.85 12.33     M 56 1
3 OGLE-TR 132 V* 10 50 34.5943868112 -61 57 26.138690064         15.72 F 95 1
4 OGLE-TR 113 SB* 10 52 24.2810533560 -61 26 48.845675976     16.08 15.41 14.42 K 115 1
5 OGLE-TR 111 V* 10 53 17.8069115424 -61 24 20.607791112     16.96 16.05 15.55 G 92 1
6 NAME Centaurus A Sy2 13 25 27.6039817176 -43 01 09.493008456   8.18 6.84 6.66   ~ 4281 3
7 BD+28 2507 V* 16 02 11.8462322592 +28 10 10.420201452   11.88 11.25     G1V 98 1
8 HD 149026b Pl 16 30 29.6184841164 +38 20 50.310893575           ~ 326 1
9 HD 149026 PM* 16 30 29.6185771608 +38 20 50.308980864   8.75 8.14     G0IV 214 1
10 OGLE-TR 10 EB* 17 51 28.2593510544 -29 52 35.231024064     15.780 16.193 14.92 G2V 87 1
11 OGLE-TR 56 EB* 17 56 35.5016678064 -29 32 21.479240220     16.560 16.07 15.30 ~ 165 1
12 NAME V672 Lyr b Pl 19 04 09.8516024106 +36 37 57.445911611           ~ 321 1
13 Kepler-1b Pl 19 07 14.0379171930 +49 18 59.090895318           ~ 305 2
14 HD 189733 BY* 20 00 43.7129433648 +22 42 39.073143456 9.241 8.578 7.648 7.126 6.68 K2V 814 1
15 WASP-2 V* 20 30 54.1282355304 +06 25 46.341284844   13 11.98     K1.5 128 1
16 HD 209458 V* 22 03 10.7727465312 +18 53 03.549393384   8.21 7.63     F9V 1058 1
17 BD-15 6290d Pl 22 53 16.7323107416 -14 15 49.303409936           ~ 144 1
18 * 51 Peg PM* 22 57 27.9804852576 +20 46 07.797040104 6.39 6.16 5.46 4.97 4.61 G2IV 1128 1
19 BD+37 4734B PM* 22 57 46.8442481880 +38 40 30.358351704   10.82 9.87     G0V 153 1
20 NAME Galactic Bulge reg ~ ~           ~ 3926 0
21 NAME Carina Region reg ~ ~           ~ 177 0

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2022.09.26-02:50:57

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