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Paper: DUNES: DUst around NEarby Stars. A Herschel Open Time Key Programme.
Volume: 472, New Quests in Stellar Astrophysics III: A Panchromatic View of Solar-like Stars, With and Without Planets
Page: 23
Authors: Eiroa, C.; DUNES consortium
Abstract: Preliminary results of the Herschel Open Time Key Programme DUNES are presented. The data show the capability of Herschel/PACS to detect and resolve dust disks with a luminosity close to the EKB luminosity. Our results suggest that the incidence of debris disks around mature solar-type, main-sequence stars is ∼ 24%, which is a remarkable increase with respect to previous estimates. The rate of resolved disks is ∼ 50% of the total number of identified debris disks, which again represents a huge increase in the number of resolved disk in the far-IR. The Herschel/PACS images allow us to study with unprecedent spatial detail many of those disks. The interpretation of some data poses challenges to debris disk models since the observed SEDs. e.g. the steep sources and the cold disks, cannot be explained by means of “clasical” debris disk scenarios
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