The Vega debris disc: A view from Herschel
2010 (English)In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 518, L130- p.Article in journal (Refereed) Published
We present five band imaging of the Vega debris disc obtained using the Herschel Space Observatory. These data span a wavelength range of 70-500 mu m with full-width half-maximum angular resolutions of 5.6-36.9 ''. The disc is well resolved in all bands, with the ring structure visible at 70 and 160 mu m. Radial profiles of the disc surface brightness are produced, and a disc radius of 11 '' (similar to 85AU) is determined. The disc is seen to have a smooth structure thoughout the entire wavelength range, suggesting that the disc is in a steady state, rather than being an ephemeral structure caused by the recent collision of two large planetesimals.
Place, publisher, year, edition, pages
2010. Vol. 518, L130- p.
stars: individual: Vega, instrumentation: photometers, methods: observational
Astronomy, Astrophysics and Cosmology
IdentifiersURN: urn:nbn:se:su:diva-51468DOI: 10.1051/0004-6361/201014574ISI: 000281527200131OAI: oai:DiVA.org:su-51468DiVA: diva2:385229
authorCount :402011-01-112011-01-102011-01-11Bibliographically approved