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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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