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Proceedings Paper

The science case of the CHEOPS planet finder for VLT
Author(s): Raffaele Gratton; Markus Feldt; Hans Martin Schmid; Wolfgang Brandner; Stefan Hippler; R. Neuhauser; Andreas Quirrenbach; Silvano Desidera; Massimo Turatto; Daphne M. Stam
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Paper Abstract

The CHEOPS Planet Finder is one of the proposed second generation instruments for the VLT. Its purpose is to image and characterize giant extrasolar planets in different phases of their evolution: young, warm planets as well as old, cold ones. Imaging the last ones is the most challenging task because of the very large (>108) flux contrast with their star. Detection of such faint sources close to the stars from the ground requires a very high Strehl ratio and efficient suppression of the speckle noise. Two complementary strategies, based on imaging polarimetry using fast modulation and on integral field spectroscopy, are included as scientific channels of CHEOPS, after the high order adaptive optics module. The outputs of the two channels will allow a close insight into the main properties of detected extrasolar planets. In addition, the CHEOPS instrument is well suited for a number of astrophysical projects, which are briefly described.

Paper Details

Date Published: 30 September 2004
PDF: 12 pages
Proc. SPIE 5492, Ground-based Instrumentation for Astronomy, (30 September 2004); doi: 10.1117/12.551417
Show Author Affiliations
Raffaele Gratton, INAF, Osservatorio Astronomico di Padova (Italy)
Markus Feldt, Max-Planck-Institut fur Astronomie (Germany)
Hans Martin Schmid, ETH Zürich (Switzerland)
Wolfgang Brandner, Max-Planck-Institut fur Astronomie (Germany)
Stefan Hippler, Max-Planck-Institut fur Astronomie (Germany)
R. Neuhauser, Friedrich-Schiller-Univ. Jena (Germany)
Andreas Quirrenbach, Leiden Observatory (Netherlands)
Silvano Desidera, INAF, Osservatorio Astronomico di Padova (Italy)
Massimo Turatto, INAF, Osservatorio Astronomico di Padova (Italy)
Daphne M. Stam, Univ. van Amsterdam (Netherlands)


Published in SPIE Proceedings Vol. 5492:
Ground-based Instrumentation for Astronomy
Alan F. M. Moorwood; Masanori Iye, Editor(s)

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