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 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:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
maps.dat 210 2 Maps list
maps/* . 4 FITS and EPS maps
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See also:
I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)
Byte-by-byte Description of file: maps.dat
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Bytes Format Units Label Explanations
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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
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Acknowledgements:
Rene Heller, rheller(at)hs.uni-hamburg.de
(End) Patricia Vannier [CDS] 11-Jan-2010