Search for Transits of a Short-Period, Sub-Saturn Extrasolar Planet Orbiting HD 46375

Details Search for Transits of a Short-Period, Sub-Saturn Extrasolar Planet Orbiting HD 46375 Search for Transits of a Short-Period, Sub-Saturn Extrasolar Planet Orbiting HD 46375

Jun 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000apj...536l..47h&link_type=abstract

The Astrophysical Journal, Volume 536, Issue 1, pp. L47-L48.

Astronomy and Astrophysics

Astronomy

7

Stars: Planetary Systems, Stars: Individual: Henry Draper Number: Hd 46375

Scientific paper

Precise brightness measurements of HD 46375 have been acquired with an automatic telescope to search for transits of its short-period, sub-Saturn extrasolar planet. Transits of the companion do not occur, indicating that the inclination of the orbit i is less than 83° and sini is less than 0.992. This upper limit on sini still preserves the possibility that the mass of the planet is less than Saturn's. Analysis of the photometry for HD 46375 reveals no photometric variability larger than 0.0001+/-0.0002 mag at the orbital period of the planet. This effectively eliminates starspots and stellar pulsations as the cause of the radial velocity variations used to infer the planet's existence.

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