2010A&A...518L.135M

Query : 2010A&A...518L.135M

2010A&A...518L.135M - Astronomy and Astrophysics, volume 518L135-135 (2010/7-2)

Resolving debris discs in the far-infrared: early highlights from the DEBRIS survey.

MATTHEWS B.C., SIBTHORPE B., KENNEDY G., PHILLIPS N., CHURCHER L., DUCHENE G., GREAVES J.S., LESTRADE J.-F., MORO-MARTIN A., WYATT M.C., BASTIEN P., BIGGS A., BOUVIER J., BUTNER H.M., DENT W.R.F., DI FRANCESCO J., EISLOEFFEL J., GRAHAM J., HARVEY P., HAUSCHILDT P., HOLLAND W.S., HORNER J., IBAR E., IVISON R.J., JOHNSTONE D., KALAS P., KAVELAARS J., RODRIGUEZ D., UDRY S., VAN DER WERF P., WILNER D. and ZUCKERMAN B.

Abstract (from CDS):

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.

Abstract Copyright: ∼

Journal keyword(s): circumstellar matter - stars: individual: {beta} Leo - infrared: stars - stars: individual: {beta} UMa - stars: individual: η Corvi

Simbad objects: 4

Full paper

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Number of rows : 4

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	* eps Eri	BY*	03 32 55.8444911587	-09 27 29.739493865	5.19	4.61	3.73	3.00	2.54	K2V	2073	1
2	* bet UMa	PM*	11 01 50.4797515135	+56 22 56.761138187	2.35	2.35	2.37	2.31	2.35	A1IVps	462	0
3	* bet Leo	dS*	11 49 03.57834	+14 34 19.4090	2.30	2.22	2.13	2.08	2.06	A3Va	605	1
4	* eta Crv	PM*	12 32 04.2264018482	-16 11 45.618615379		4.658	4.294			F2V	353	0

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