Confirming Planetary Candidates in the Stellar Graveyard with NICMOS

Details Confirming Planetary Candidates in the Stellar Graveyard with NICMOS Confirming Planetary Candidates in the Stellar Graveyard with NICMOS

Jul 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hst..prop10560d&link_type=abstract

HST Proposal ID #10560

Physics

Hst Proposal Id #10560 Interstellar And Intergalactic Medium

Scientific paper

We propose to follow up planetary candidates imaged near the white dwarf WD 1620-391 with second epoch images from NICMOS. This white dwarf was imaged during Cycle 12 as part of a campaign to detect massive planetary companions to nearby white dwarfs with photospheric metal line absorption. While at a low galactic latitude, a puzzling excess of objects are present < 4", suggesting the possiblity of objects physically associated with the white dwarf. With second epoch information we can test these candidates for common proper motion, a test for physical association. If any of these candidates are confirmed, they will be consistent with 6-10 MJup companions at projected orbital separations of between 25-50 AU.

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