We present results from the earliest observations of DEBRIS, a Herschel Key Programme to conduct a volume- and flux-limited survey for debris discs in A-type through M-type stars. PACS images (from chop/nod or scan-mode observations) at 100 and 160 micron are presented toward two A-type stars and one F-type star: beta Leo, beta UMa and eta Corvi. All three stars are known disc hosts. Herschel spatially resolves the dust emission around all three stars (marginally, in the case of beta UMa), providing new information about discs as close as 11 pc with sizes comparable to that of the Solar System. We have combined these data with existing flux density measurements of the discs to refine the SEDs and derive estimates of the fractional luminosities, temperatures and radii of the discs.
@article{arxiv.1005.5147,
title = {Resolving debris discs in the far-infrared: early highlights from the DEBRIS survey},
author = {DEBRIS Collaboration and Brenda Matthews and Bruce Sibthorpe and Grant Kennedy and Neil Phillips and Laura Churcher and Gaspard Duchêne and Jane Greaves and Jean-Francois Lestrade and Amaya Moro-Martin and Mark Wyatt and Pierre Bastien and Andy Biggs and Jerome Bouvier and Harold Butner and Bill Dent and James Di Francesco and Jochen Eislöffel and James Graham and Paul Harvey and Peter Hauschildt and Wayne Holland and Jonti Horner and Eduardo Ibar and Rob Ivison and Doug Johnstone and Paul Kalas and JJ Kavelaars and David Rodriguez and Stephane Udry and Paul van der Werf and David Wilner and Ben Zuckerman},
journal= {arXiv preprint arXiv:1005.5147},
year = {2019}
}