Calibration Observations of Fomalhaut with the VLTI
Astrophysics
2009-11-10 v1
Abstract
An investigation of the stability of the transfer function of the European Southern Observatory's Very Large Telescope Interferometer has been carried out through observations of Fomalhaut over a wide range in hour angle. No significant variation in the transfer function was found for the zenith angle range 5-70 degrees. The projected baseline varied between 139.7 m and 49.8 m during the observations and, as an integral part of the determination of the transfer function, a new accurate limb-darkened angular diameter for Fomalhaut has been established. This has led to improved values for the emergent flux, effective temperature, radius and luminosity.
Cite
@article{arxiv.astro-ph/0410625,
title = {Calibration Observations of Fomalhaut with the VLTI},
author = {J. Davis and A. Richichi and P. Ballester and Ph. Gitton and A. Glindemann and S. Morel and M. Schoeller and M. Wittkowski and F. Paresce},
journal= {arXiv preprint arXiv:astro-ph/0410625},
year = {2009}
}
Comments
6 pages, 4 figures, uses an.cls, accepted for publication in Astron. Nacht