HR 8799 and the Search of Jupiter-like Planets Around Young & Nearby Early-Type Stars.

Details HR 8799 and the Search of Jupiter-like Planets Around Young & Nearby Early-Type Stars. HR 8799 and the Search of Jupiter-like Planets Around Young & Nearby Early-Type Stars.

Aug 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009noao.prop..306m&link_type=abstract

NOAO Proposal ID #2009B-0306

Physics

Scientific paper

Following our HR 8799 3-planet system discovery at Gemini, we propose to search for an additional planet at 10 AU in this system and to pursue our ongoing volume-limited (<55 pc) deep AO/ADI A- & F-type star IDPS survey. Analyzes of star forming regions have shown that A-type stars have more frequent/massive disks than less massive stars, potentially triggering more massive planet formation on wider orbits. Stars as massive as A-type stars have been neglected in AO searches, including the Gemini Deep Planet Survey, while radial velocity surveys have reduced sensitivity for such stars. Thus planet/BD formation around more massive stars remains unconstrained. After combining this A-type star survey with our previous GDPS survey and new FGKM proposed targets for NICI, we will have, for the first time, a broader picture of the population of massive planets at large semi-major axes around a wide range of stellar mass.

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