Warm Gas in Transitional Disks

Details Warm Gas in Transitional Disks Warm Gas in Transitional Disks

May 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006sptz.prop30300n&link_type=abstract

Spitzer Proposal ID #30300

Physics

Scientific paper

Studying gas in the planet formation region of disks is a potentially powerful tool with which to identify systems in various states of planet formation. Planet formation theory predicts that evolutionary states from planetesimal formation to early- and late-stages of giant planet formation will have distinct characteristics with regard to their gas distribution within 10 AU and their stellar accretion rates. Transitional disks are exciting environments in which to search for evidence of planet formation since their SEDs indicate that significant evolution has occured. We therefore propose use Spitzer to assess the presence and filling factor of gas in the region within 10 AU of transitional disks and thereby probe empirically the evolutionary state of these systems. Spectral line diagnostics accessible with Spitzer are ideal for probing gas in the 1-10 AU region of the disk. We will supplement these observations with ground-based observations that probe stellar accretion rates and the gas within 1 AU of the star.

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