Pyramid Imaging of Circumstellar Material About Nearby Stars

Details Pyramid Imaging of Circumstellar Material About Nearby Stars Pyramid Imaging of Circumstellar Material About Nearby Stars

Jul 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996hst..prop.6469s&link_type=abstract

HST Proposal ID #6469

Physics

Hst Proposal Id #6469 Binaries And Star Formation

Scientific paper

We propose to use the WFPC2 pyramid as a coronagraph to detect circumstellar material about five nearby stars. Two orbits will be devoted to each target. Each target star will be acquired in PC1. The first orbit will be used for an INTACQ to position the core of the stellar PSF off the edge of PC1 in WF2 followed by 4 thirty second F850LP observations, while the second orbit will be used to image the expected circumstellar disk material in PC1. Four ten minute exposures with the F555W filter will be obtained, reaching a limiting magnitude V~26. This imaging technique is only possible with the WFPC2 onboard HST.

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