The Vega Debris Disc: A view from Herschel
Earth and Planetary Astrophysics
2015-05-19 v1
Abstract
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 um 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 um. Radial profiles of the disc surface brightness are produced, and a disc radius of 11" (~ 85 AU) 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.
Keywords
Cite
@article{arxiv.1005.3543,
title = {The Vega Debris Disc: A view from Herschel},
author = {B. Sibthorpe and B. Vandenbussche and J. S. Greaves and E. Pantin and G. Olofsson and B. Acke and M. J. Barlow and J. A. D. L. Blommaert and J. Bouwman and A. Brandeker and M. Cohen and W. DeMeester and W. R. F. Dent and J. Di Francesco and C. Dominik and M. Fridlund and W. K. Gear and A. M. Glauser and H. L. Gomez and P. C. Hargrave and P. M. Harvey and Th. Henning and A. M. Heras and M. R. Hogerheijde and W. S. Holland and R. J. Ivison and S. J. Leeks and T. L. Lim and R. Liseau and B. C. Matthews and D. A. Naylor and G. L. Pilbratt and E. T. Polehampton and S. Regibo and P. Royer and A. Sicilia-Aguilar and B. M. Swinyard and C. Waelkens and H. J. Walker and R. Wesson},
journal= {arXiv preprint arXiv:1005.3543},
year = {2015}
}
Comments
A&A in press - Herschel Special Edition