Candidate Main‐Sequence Stars with Debris Disks: A New Sample of Vega‐like Sources

Abstract

Vega-like sources are main-sequence stars that exhibit IR fluxes inexcess of expectations for stellar photospheres, most likely dueto reradiation of stellar emission intercepted by orbiting dust grains.We have identified a large sample of main-sequence stars with possibleexcess IR radiation by cross-correlating the Michigan Catalog ofTwo-dimensional Spectral Types for the HD Stars with the IRAS FaintSource Survey Catalog. Some 60 of these Vega-like sources were notfound during previous surveys of the IRAS database, the majorityof which employed the lower sensitivity Point Source Catalog. Here,we provide details of our search strategy, together with a preliminaryexamination of the full sample of Vega-like sources.