From: Amara Graps (amara@amara.com)
Date: Tue Feb 11 2003 - 07:46:40 MST
http://xxx.lanl.gov/abs/astro-ph/0301249
Astrophysics, abstract
astro-ph/0301249
From: Keith Horne <kdh1@st-andrews.ac.uk>
Date (v1): Tue, 14 Jan 2003 11:04:29 GMT (37kb)
Date (revised v2): Sat, 8 Feb 2003 00:12:41 GMT (37kb)
Status and Prospects of Planetary Transit Searches: Hot Jupiters Galore
Authors: Keith Horne
Comments: To appear in: Scientific Frontiers in Research on Extrasolar
Planets, 18-21 Jun 2002, Washington D.C., ASP Conference Series Vol ???,
2003, D.Deming and S.Seager, eds v2: update notes ogle-tr-56b discovery
The first transiting extrasolar planet, orbiting HD209458, was a
Doppler wobble planet before its transits were discovered with a
10 cm CCD camera. Wide-angle CCD cameras, by monitoring in
parallel the light curves of tens of thousands of stars, should
find hot Jupiter transits much faster than the Doppler wobble
method. The discovery rate could easily rise by a factor 10. The
sky holds perhaps 1000 hot Jupiters transiting stars brighter than
V=13. These are bright enough for follow-up radial velocity
studies to measure planet masses to go along with the radii from
the transit light curves. I derive scaling laws for the discovery
potential of ground-based transit searches, and use these to
assess over two dozen planetary transit surveys currently
underway. The main challenge lies in calibrating small systematic
errors that limit the accuracy of CCD photometry at
milli-magnitude levels. Promising transit candidates have been
reported by several groups, and many more are sure to follow.
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-- ******************************************************************** Amara Graps, PhD email: amara@amara.com Computational Physics vita: ftp://ftp.amara.com/pub/resume.txt Multiplex Answers URL: http://www.amara.com/ ******************************************************************** "Whenever I see an adult on a bicycle, I do not despair for the future of the human race." -- H. G. Wells
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