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Genie observations of small scale astrophysical processes in star forming regions and quasars

White, Glenn J. and Serjeant, Stephen B. G. (2003). Genie observations of small scale astrophysical processes in star forming regions and quasars. In: GENIE - DARWIN Workshop - Hunting for Planets (ESA SP-522), 3-6 June 2002, Leiden, The Netherlands.

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The VLTI/GENIE configuration will operate using at least 4 of the VLTI telescopes (and possibly with one or more of the AT telescopes in the future if adaptive optics become available on them). GENIE effectively can be thought of as a "smart" coronagraph, enabling high dynamic range imaging to be achieved at moderate spatial resolution, with high rejection of the emission of a central bright point source. However, but this bright source rejection may only provide a rather moderate image quality (due to the few baselines and transfer function on the sky). Operated in this way, only limited image reconstruction is possible since classical radio and millimeter wavelength interferometry techniques are not directly applicable to the outputs of optical interferometers because the absolute phases are generally not measured. However, measurements of visibility and closure phase could lead to situations where image reconstruction becomes possible. This paper addresses the issue of whether there [are] areas outside of the exoplanet search where it might be able to make a useful impact on astronomy.

Item Type: Conference Item
Copyright Holders: 2003 European Space Agency
Academic Unit/Department: Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 32648
Depositing User: G. J. White
Date Deposited: 23 Feb 2012 10:25
Last Modified: 01 Mar 2016 21:35
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