Abstract
We present preliminary limits on the presence of planets around white dwarf stars using the IRAC photometer on the Spitzer space telescope. Planets emit strongly in the mid-infrared which allows their presence to be detected as an excess at these wavelengths. We place limits of 5 MJ for 8 stars assuming ages of 1 Gyr, and 10 MJ for 23 stars.We describe our survey, present our results and comment on approaches to improve our methodology.
Original language | American English |
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Journal | ASP Conference Series |
Volume | 372 |
State | Published - Oct 28 2006 |
Externally published | Yes |
Keywords
- stars--white dwarfs
Disciplines
- Stars, Interstellar Medium and the Galaxy