Coronographic Search for Planets arround Nearby Stars

Details Coronographic Search for Planets arround Nearby Stars Coronographic Search for Planets arround Nearby Stars

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004hst..prop10329f&link_type=abstract

HST Proposal ID #10329

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Hst Proposal Id #10329

Scientific paper

We will use the HRC coronagraph to search for planets, disks, and exo-zodiacal dust around nearby stars. We have selected the following stars: alpha Cen A and B, tau Ceti, and epsilon Eridani. The observations of each star will be taken at two or more epochs. The observations will be broken into a sequence of short exposures and taken at different roll angles to compensate for "telescope breathing" during the orbit. As a further precaution, the observations will be scheduled after the closest possible nearby pointing in order to minimize thermal changes in the OTA during the first orbit of observations. After matching phases, the PSFs from one star will be subtracted from the other star.

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