Spitzer White Dwarf Planet Limits

F. Mullally; Ted von Hippel; D. E. Winget

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arXiv · astro-ph/0610856

Spitzer White Dwarf Planet Limits

F. Mullally·Ted von Hippel·D. E. Winget

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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 $5 M_J$ for 8 stars assuming ages of $1 Gyr$, and $10 M_J$ for 23 stars.We describe our survey, present our results and comment on approaches to improve our methodology.

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F. Mullally, Ted von Hippel, D. E. Winget. 2006-10-28. Spitzer White Dwarf Planet Limits. https://arxiv.org/abs/astro-ph/0610856

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