Please use this identifier to cite or link to this item:
Title: White dwarfs with unresolved substellar companions and debris disks in the UKIDSS Survey
Authors: Steele, Paul
Burleigh, Matt
Barstow, Martin
Jameson, Richard
Dobbie, Paul
First Published: 1-Jan-2009
Presented at: 16th European White Dwarfs Workshop, Barcelona, SPAIN
Start Date: 30-Jun-2008
End Date: 4-Jul-2008
Publisher: IOP Publishing
Citation: 16th European White Dwarfs Workshop, Journal of Physics: Conference Series 172 (2009) 012058
Abstract: We present a near-infrared (NIR) photometric search for substellar companions and debris disks around white dwarfs in the UKIRT Infrared Deep Sky Survey (UKIDSS). We cross-correlate the SDSS DR4 and McCook & Sion catalogues of white dwarfs with the UKIDSS DR3 database producing 408 and 133 matches respectively. Models are then fitted to Sloan photometry to identify those with NIR photometric excesses consistent with an unresolved sub-stellar companion or a debris disk. We present follow up photometry from targets previously identified in UKIDSS DR2 and the first results from DR3. In total we identify 8 potential white dwarf + very low mass binary systems, 2 potential white dwarf + disk systems, and 2 systems which require further investigation to clarify the source of the excess.
DOI Link: 10.1088/1742-6596/172/1/012058
ISSN: 1742-6588
eISSN: 1742-6596
Version: Publisher Version
Status: Peer-reviewed
Type: Conference Paper
Rights: Archived with reference to SHERPA/RoMEO and publisher website. Creative Commons Attribution License 3.0 (CC BY 3.0)
Appears in Collections:Conference Papers & Presentations, Dept. of Physics and Astronomy

Files in This Item:
File Description SizeFormat 
1742-6596_172_1_012058.pdfPublished (publisher PDF)1.42 MBAdobe PDFView/Open

Items in LRA are protected by copyright, with all rights reserved, unless otherwise indicated.