EAS Publications Series
Volume 6, 2003Observing with the VLTI
|Page(s)||3 - 3|
|Published online||31 January 2003|
G. Perrin and F. Malbet (eds)
EAS Publications Series, 6 (2003) 3
An introduction to interferometry
University of Cambridge, Astrophysics
Group, Cavendish Laboratory, Madingley Road, Cambridge, CB3 OHE, UK;
Corresponding author: firstname.lastname@example.org
In this paper I provide a brief introduction to astronomical interferometry at optical and infrared wavelengths. Two key concepts, central to understanding the basis and practice of interferometry are introduced: image formation with conventional telescopes, in particular the Fourier decomposition of images, and the nature and utility of measurements of the coherence function or mutual intensity. Thereafter I focus on optical/infrared interferometry, outlining how measurements of the coherence function are made at these wavelengths, how they can be used to interpret a source's structure, and what the principles of interferometric imaging tell us about the limitations expected for the current generation of arrays such as the VLTI.
© EAS, EDP Sciences, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.