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25 April 2024 |
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Calibration Observations of Fomalhaut with the VLTI | | J. Davis
; A. Richichi
; P. Ballester
; Ph. Gitton
; A. Glindemann
; S. Morel
; M. Schoeller
; M. Wittkowski
; F. Paresce
; | | Date: |
26 Oct 2004 | | Subject: | astro-ph | | Affiliation: | 1 and 2), A. Richichi , P. Ballester , Ph. Gitton , A. Glindemann , S. Morel , M. Schoeller , M. Wittkowski , F. Paresce ( University of Sydney, European Southern Observatory | | 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. | | Source: | arXiv, astro-ph/0410625 | | Services: | Forum | Review | PDF | Favorites | |
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