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Spectral energy distributions and structures of debris discs

Published online by Cambridge University Press:  26 May 2016

W.R.F. Dent ,
M. C. Wyatt ,
W. S. Holland ,
J. S. Greaves ,
I. M. Coulson  and
D. M. Walther
W.R.F. Dent
Affiliation:
UK ATC, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, UK
M. C. Wyatt
Affiliation:
UK ATC, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, UK
W. S. Holland
Affiliation:
Joint Astronomy Centre, 660 N. Aohoku PI, Hilo, HI 96720, USA
J. S. Greaves
Affiliation:
Joint Astronomy Centre, 660 N. Aohoku PI, Hilo, HI 96720, USA
I. M. Coulson
Affiliation:
Joint Astronomy Centre, 660 N. Aohoku PI, Hilo, HI 96720, USA
D. M. Walther
Affiliation:
Gemini Observatory, Hilo, HI 96720, USA

Abstract

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New photometry of main-sequence debris discs has been carried out at 850 and 450/μm; the derived SEDs indicate that the dust can lie in either thin rings or radially-extended discs, as seen directly in the few nearby objects which are resolvable. All such objects are consistent with a long wavelength opacity index β of 1.0±0.2 - similar to T Tauri stars, but significantly lower than embedded objects.

Type
Part IV: Protoplanetary and β Pic disks
Information
Symposium - International Astronomical Union , Volume 202: Planetary Systems in the Universe – Observation, Formation and Evolution , 2004 , pp. 328 - 330
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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