Publications of the MPIfR
Optical & Infrared
Interferometry Group
Lopez, B., Wolf, S., Dugué, M., Graser,
U., Mathias, Ph., Antonelli, P., Augereau, J.-C., Behrend, J.,
Berruyer, N., Bresson, Y., Chesneau, O., Connot, C., Demyk, K.,
DiFolco, E., Dutrey, A., Flament, S., Gitton, Ph., Glazenborg, A.,
Glindemann, A., Heininger, M., Henning, Th., Hofmann, K.-H., Hugues,
Y., Jaffe, W., Jankov, S., Kraus, S., Lagarde, S., Leinert, Ch., Linz,
H., Meisenheimer, K., Mosoni, L., Menut, J.-L., Neumann, U.,
Niedzielski, A., Przygodda, F., Puech, F., Ratzka, T., Rohloff, R.,
Roussel, A., Schertl, D., Schmider, F.-X., Stecklum, B., Thiéebaut, E.,
Vakili, F., Wagner, K., Weigelt, G.
APerture Synthesis in the MID-Infrared with
the VLTI
"ESO Astrophysics Symposia"
Proceedings of the ESO Workshop: "The power of
optical/IR interferometry: recent scientific results and 2nd generation
VLTI instrumentation"
April 4-8, 2005 in Garching, Germany
pg.345-356 (2008)
Abstract:
Our objective is to develop of the mid-infrared imaging for the VLTI.
Several areas of astrophysics will benefit of this new capability.
APreS-MIDI comprises a beam combiner which interfaces with the current
MIDI instrument. It thus constitutes an extension to the two-beam
interferometric instrument MIDI by increasing the number of recombined
beams up to four. This extension provides better uv-coverage (6
visibility points measured in one set) and moreover will allow
measurement of 4 closure phase relations thus providing for the first
time aperture synthesis images in the mid-infrared spectral regime.
The mid-infrared spectral domain is very relevant for the study of the
environments of various astrophysical sources. The science cases are
broad. There are illustrated in the first part of this article by the
perspective of imaging the circumstellar discs of young stellar
objects. The APreS-MIDI instrument is described in a second part of
this article.
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