X-Ray and FUV Photo-Ionization of Transitional Disks around the PMS Stars HD135344B and lk Halpha 330

Details X-Ray and FUV Photo-Ionization of Transitional Disks around the PMS Stars HD135344B and lk Halpha 330 X-Ray and FUV Photo-Ionization of Transitional Disks around the PMS Stars HD135344B and lk Halpha 330

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cxo..prop.2535b&link_type=abstract

Chandra proposal ID #10200596

Physics

Scientific paper

Transitional disks have transformed most of the dust and gas in their inner regions into planetesimals or larger solid bodies. They are a rare, short-lived phase of PMS disk evolution and provide important physical insights and modeling constraints on disk and protoplanetary system evolution. We propose to observe two intermediate mass stars with transitional disks, HD135344B and Lk Halpha 330, using ACIS-S on Chandra and the COS FUV spectrograph on HST. We will use these spectra to determine the coronal, transition region, and upper chromospheric emission measure distribution, covering temperatures from 10,000 K to 10 MK, and then calculate the full X-ray/EUV/FUV radiation field for use in modeling its photoexcitation/photoionization effects on the disk structure.

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