Proper Motion Search for T-Dwarfs
Abstract
We propose to perform a search for foreground T-dwarf candidates in the SAGE survey field. Candidate objects will be identified by using the k-NN method applied to the mosaic photometry version of the SAGE database. We will image the fields again with the IRAC 4.5/8.0 micron bands to obtain a 'second epoch' to determine if the candidate objects have sufficient proper motion for them to be true T-dwarfs, and to search the fields for additional companion objects with common proper motions. The newly identified objects will expand the sample of known T-dwarfs and explore the full range of characteristics of this brown dwarf class.
- Publication:
-
Spitzer Proposal
- Pub Date:
- March 2008
- Bibcode:
- 2008sptz.prop50604F