Resolving debris discs in the far-infrared: early highlights from the DEBRIS survey [Letter to the editor]

Matthews, B. C. and Sibthorpe, B. and Kennedy, G. and Phillips, N. and Churcher, L. and Duchene, G. and Greaves, J. S. and Lestrade, J. -F. and Moro-Martin, A. and Wyatt, M. C. and Bastien, P. and Biggs, A. and Bouvier, J. and Butner, H. M. and Dent, W. R. F. and Di Francesco, J. and Eisloffel, J. and Graham, J. and Harvey, P. and Hauschildt, P. and Holland, W. S. and Horner, J. and Ibar, E. and Ivison, R. J. and Johnstone, D. and Kalas, P. and Kavelaars, J. and Rodriguez, D. and Udry, S. and Van Der Werf, P. and Wilner, D. and Zuckerman, B. (2010) Resolving debris discs in the far-infrared: early highlights from the DEBRIS survey [Letter to the editor]. Astronomy and Astrophysics, 518 (8). L135. ISSN 0004-6361

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Abstract

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 μm are presented toward two A-type stars and one F-type star: β Leo, β UMa and η Corvi. All three stars are known disc hosts. Herschel spatially resolves the dust emission around all three stars (marginally, in the case of β 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.
Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: No
Item Status: Live Archive
Additional Information: © 2010 ESO. This publication is copyright. It may be reproduced in whole or in part for the purposes of study, research, or review, but is subject to the inclusion of an acknowledgment of the source.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - No Department
Date Deposited: 23 Jul 2014 02:41
Last Modified: 01 Feb 2017 02:22
Uncontrolled Keywords: circumstellar matter; stars; β Leo; infrared; β UMa; η Corvi
Fields of Research : 02 Physical Sciences > 0201 Astronomical and Space Sciences > 020110 Stellar Astronomy and Planetary Systems
02 Physical Sciences > 0201 Astronomical and Space Sciences > 020109 Space and Solar Physics
02 Physical Sciences > 0201 Astronomical and Space Sciences > 020101 Astrobiology
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Identification Number or DOI: 10.1051/0004-6361/201014667
URI: http://eprints.usq.edu.au/id/eprint/25556

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