A Possible Planet Around a White Dwarf

Details A Possible Planet Around a White Dwarf A Possible Planet Around a White Dwarf

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20916304m&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #163.04; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

Scientific paper

We present evidence for a possible planetary companion to a pulsating white dwarf star. A subset of pulsating white dwarf stars exhibit extreme stability in the period and phase of their pulsations. This allows the motion of the star due to an orbiting planet around the center of mass of the system to be detected as a change in the observed arrival time of pulsations. Our best fit orbital solution gives a period of 4 years, a semi-major axis of 2 AU and an mass of 2/sin(i) Jupiter masses.
This work is supported by a grant from the NASA Origins program, NAG5-13094 and in part under contract with the Jet Propulsion Laboratory (JPL) funded by NASA through the Michelson Fellowship Program. JPL is managed for NASA by the California Institute of Technology.

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