Published November 10, 2009
| Version v1
Journal article
LIMITS ON UNRESOLVED PLANETARY COMPANIONS TO WHITE DWARF REMNANTS OF 14 INTERMEDIATE-MASS STARS
- 1. Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138 (United States)
- 2. Department of Astronomy, Ohio State University, 140 W. 18th Ave., Columbus, OH 43210 (United States)
- 3. Institut fuer Theoretische Physik und Astrophysik, University of Kiel, 24098 Kiel (Germany)
Description
We present Spitzer IRAC photometry of white dwarf remnants of 14 stars with M = 3-5 Msun. We do not detect mid-infrared excess around any of our targets. By demanding a 3σ photometric excess at 4.5 μm for unresolved companions, we rule out planetary mass companions down to 5, 7, or 10 M J for 13 of our targets based on the Burrows et al. substellar cooling models. Combined with previous IRAC observations of white dwarf remnants of intermediate-mass stars, we rule out ≥10M J companions around 40 white dwarfs and ≥5M J companions around 10 white dwarfs.
Availability note (English)
Available from http://dx.doi.org/10.1088/0004-637X/705/2/1219Additional details
Identifiers
Publishing Information
- Journal Title
- Astrophysical Journal
- Journal Volume
- 705
- Journal Issue
- 2
- Journal Page Range
- p. 1219-1225
- ISSN
- 0004-637X
- CODEN
- ASJOAB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41108781
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- COOLING; MASS; PHOTOMETRY; PLANETS; WHITE DWARF STARS
- Descriptors DEC
- DWARF STARS; STARS