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J/A+A/508/1509        Sky maps for hot Jupiters                (Heller+, 2009)

Transit detections of extrasolar planets around main-sequence stars. I. Sky maps for hot Jupiters. Heller R., Mislis D., Antoniadis J. <Astron. Astrophys. 508, 1509 (2009)> =2009A&A...508.1509H
ADC_Keywords: Planets ; Stars, pre-main sequence Keywords: planetary systems - occultations - solar neighborhood - Galaxy: abundances - instrumentation: miscellaneous - methods: observational Abstract: The findings of more than 350 extrasolar planets, most of them nontransiting Hot Jupiters, have revealed correlations between the metallicity of the main-sequence (MS) host stars and planetary incidence. This connection can be used to calculate the planet formation probability around other stars, not yet known to have planetary companions. Numerous wide-field surveys have recently been initiated, aiming at the transit detection of extrasolar planets in front of their host stars. Depending on instrumental properties and the planetary distribution probability, the promising transit locations on the celestial plane will differ among these surveys. We want to locate the promising spots for transit surveys on the celestial plane and strive for absolute values of the expected number of transits in general. Our study will also clarify the impact of instrumental properties such as pixel size, field of view (FOV), and magnitude range on the detection probability. We used data of the Tycho catalog for ∼1 million objects to locate all the stars with 0m~<mV~<11.5m on the celestial plane. We took several empirical relations between the parameters listed in the Tycho catalog, such as distance to Earth, mV, and (B-V), and those parameters needed to account for the probability of a star to host an observable, transiting exoplanet. The empirical relations between stellar metallicity and planet occurrence combined with geometrical considerations were used to yield transit probabilities for the MS stars in the Tycho catalog. Magnitude variations in the FOV were simulated to test whether this fluctuations would be detected by BEST, XO, SuperWASP and HATNet. Description: We present a sky map of the expected number of Hot Jupiter transit events on the basis of the Tycho catalog. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file maps.dat 210 2 Maps list maps/* 0 4 FITS and EPS maps
See also: I/239 : The Hipparcos and Tycho Catalogues (ESA 1997) Byte-by-byte Description of file: maps.dat
Bytes Format Units Label Explanations
1- 18 A18 --- ImgFile JPG name of the file in subdirectory maps 20- 36 A17 --- PSfile EPS name of the file in subdirectory maps 38-210 A173 --- Title Title of the file
Acknowledgements: Rene Heller, rheller(at)
(End) Patricia Vannier [CDS] 11-Jan-2010
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