IR excess stars from Tycho-2 and AllWISE

DOI

The conclusion of the Wide-Field Infrared Survey Explorer (WISE) mission presents an opportune time to summarize the history of using excess emission in the infrared as a tracer of circumstellar material and exploit all available data for future missions such as the James Webb Space Telescope. We have compiled a catalog of infrared excess stars from peer-reviewed articles and perform an extensive search for new infrared excess stars by cross-correlating the Tycho-2 and all-sky WISE (AllWISE) catalogs. We define a significance of excess in four spectral type divisions and select stars showing greater than either 3{sigma} or 5{sigma} significance of excess in the mid- and far-infrared. Through procedures including spectral energy distribution fitting and various image analyses, each potential excess source was rigorously vetted to eliminate false positives. The infrared excess stars from the literature and the new stars found through the Tycho-2 and AllWISE cross-correlation produced nearly 500 "Prime" infrared excess stars, of which 74 are new sources of excess, and >1200 are "Reserved" stars, of which 950 are new sources of excess. The main catalog of infrared excess stars are nearby, bright, and either demonstrate excess in more than one passband or have infrared spectroscopy confirming the infrared excess. This study identifies stars that display a spectral energy distribution suggestive of a secondary or post-protoplanetary generation of dust, and they are ideal targets for future optical and infrared imaging observations. The final catalogs of stars summarize the past work using infrared excess to detect dust disks, and with the most extensive compilation of infrared excess stars (~1750) to date, we investigate various relationships among stellar and disk parameters.

Cone search capability for table J/ApJS/225/15/table3 (Prime IR excess stars from the literature and Tycho-2 cross-correlation with AllWISE)

Cone search capability for table J/ApJS/225/15/table4 (Reserved IR excess stars from the literature and Tycho-2 cross-correlation with AllWISE)

Cone search capability for table J/ApJS/225/15/table5 (Photometry information for Prime and Reserved catalogs stars)

Identifier
DOI http://doi.org/10.26093/cds/vizier.22250015
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJS/225/15
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/225/15
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/225/15
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJS/225/15
Provenance
Creator Cotten T.H.; Song I.
Publisher CDS
Publication Year 2016
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy