The Vega debris disc: A view from Herschel
Artikel i vetenskaplig tidskrift, 2010

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.

observational

instrumentation: photometers

mission

images

dust

methods:

spitzer

stars

evolution

stars: individual: Vega

Författare

B. Sibthorpe

Royal Observatory

B. Vandenbussche

KU Leuven

J. S. Greaves

University of St Andrews

E. Pantin

Centre national de la recherche scientifique (CNRS)

G. Olofsson

Stockholms universitet

B. Acke

KU Leuven

M. J. Barlow

University College London (UCL)

Jadl Blommaert

KU Leuven

J. Bouwman

Max Planck-institutet

A. Brandeker

Stockholms universitet

M. Cohen

University of California

W. De Meester

KU Leuven

W. R. F. Dent

Atacama Large Millimeter-submillimeter Array (ALMA)

J. Di Francesco

National Research Council Canada

C. Dominik

Radboud Universiteit

Anton Pannekoek Institute for Astronomy

M. Fridlund

ESA Research

W. K. Gear

Cardiff University

A. M. Glauser

Eidgenössische Technische Hochschule Zürich (ETH)

Royal Observatory

H. L. Gomez

Cardiff University

P. C. Hargrave

Cardiff University

P. M. Harvey

The University of Texas at Austin

University of Colorado at Boulder

T. Henning

Max Planck-institutet

A. Heras

ESA Research

M. R. Hogerheijde

Universiteit Leiden

W. S. Holland

Royal Observatory

R. J. Ivison

Royal Observatory

University of Edinburgh

S. J. Leeks

Rutherford Appleton Laboratory

T. L. Lim

Rutherford Appleton Laboratory

René Liseau

Chalmers, Rymd- och geovetenskap, Radioastronomi och astrofysik

B. C. Matthews

National Research Council Canada

D. A. Naylor

University of Lethbridge

G.L. Pilbratt

ESA Research

E. T. Polehampton

University of Lethbridge

Rutherford Appleton Laboratory

S. Regibo

KU Leuven

P. Royer

KU Leuven

A. Sicilia-Aguilar

Max Planck-institutet

B. M. Swinyard

Rutherford Appleton Laboratory

C. Waelkens

KU Leuven

H. Walker

Rutherford Appleton Laboratory

R. Wesson

University College London (UCL)

Astronomy and Astrophysics

0004-6361 (ISSN) 1432-0746 (eISSN)

Vol. 518 Article Number: L130 L130

Ämneskategorier

Astronomi, astrofysik och kosmologi

DOI

10.1051/0004-6361/201014574