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Astrophysics with Closure Phases

Published online by Cambridge University Press:  31 January 2003

G. Perrin ,
F. Malbet  and
J. D. Monnier
J. D. Monnier*
Affiliation:
Harvard-Smithsonian Center for Astrophysics & University of Michigan Astronomy Department
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Abstract

After a brief introduction, this contribution will discuss practical strategies to exploit the unique science potential of closure phases in optical interferometry, especially in the case of only three telescopes when direct imaging is near-impossible. Prototype source morphologies will be investigated in detail (binary and "dust shell + star"), and will illustrate how closure phase measurements can be used both for "Precision Interferometry" as well as qualitatively new probes of circumstellar environments. During this meeting, the notion of a "Closure Differential Phase" came to light, and some interesting properties of this quantity are here introduced.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 6: Observing with the VLTI , 2003 , pp. 213
Copyright
© EAS, EDP Sciences, 2003

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