A Hard Look at Stellar Disks at the Epoch of Planet Formation

Details A Hard Look at Stellar Disks at the Epoch of Planet Formation A Hard Look at Stellar Disks at the Epoch of Planet Formation

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007cxo..prop.2309h&link_type=abstract

Chandra Proposal ID #09200907

Physics

Chandra Proposal Id #09200907

Scientific paper

We propose to use the HST/ACS/SBC and Chandra/ACIS-S3 to observe the high energy fluxes of 4 stars surrounded by disks in the newly discovered aggregate 25 Ori, the most populous 10 Myr group known within 500 pc. Our observations will cover the 1-25 A and 1250-2000 A bandpasses, and will complement our optical and Spitzer data for these objects, to provide essential input to physically-consistent models of disk structure and chemistry in the age range around 10 Myr, thought to be a critical period in the planet-forming process. Our proposed observations will double the number of 10 Myr old accreting stars with known high energy radiation fields, and will be the first FUV observations of low mass accreting stars in an OB association.

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