J/ApJ/660/1556      Characterization of dusty debris disks   (Rhee+, 2007)
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Beginning of ReadMe : J/ApJ/660/1556 Characterization of dusty debris disks (Rhee+, 2007) ================================================================================ Characterization of dusty debris disks: the IRAS and Hipparcos catalogs. Rhee J.H., Song I., Zuckerman B., McElwain M. <Astrophys. J., 660, 1556-1571 (2007)> =2007ApJ...660.1556R ================================================================================ ADC_Keywords: Stars, dwarfs ; Infrared sources ; Planets ; Interstellar medium Keywords: infrared: stars - planetary systems: protoplanetary disks Abstract: Dusty debris disks around main-sequence stars are signposts for the existence of planetesimals and exoplanets. From cross-correlating Hipparcos stars with the IRAS catalogs, we identify 146 stars within 120pc of Earth that show excess emission at 60um. This search took special precautions to avoid false positives. Our sample is reasonably well distributed from late B to early K-type stars, but it contains very few later type stars. Even though IRAS flew more than 20 years ago and many astronomers have cross-correlated its catalogs with stellar catalogs, we were still able to newly identify debris disks at as many as 33 main-sequence stars; of these, 32 are within 100pc of Earth. The power of an all-sky survey satellite like IRAS is evident when comparing our 33 new debris disks with the total of only 22 dusty debris disk stars first detected with the more sensitive, but pointed, satellite ISO. Our investigation focuses on the mass, dimensions, and evolution of dusty debris disks.

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