ACIS Imaging Spectroscopy of the Rho Ophiuchus a Cloud

Details ACIS Imaging Spectroscopy of the Rho Ophiuchus a Cloud ACIS Imaging Spectroscopy of the Rho Ophiuchus a Cloud

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cxo..prop..150g&link_type=abstract

Chandra Proposal ID #01200767

Physics

Chandra Proposal Id #01200767

Scientific paper

Einstein, ROSAT and ASCA observations of the rho Ophiuchus star-forming region have revealed X-ray flares, very hot plasma, and quasi-periodic variability from embedded young stellar objects, suggesting that some of the X-rays are produced by interactions between an accretion disk and large-scale magnetic fields. We propose to obtain a 100-ks ACIS-I exposure of rho Oph A in order to model X-ray spectra and light curves of YSOs spanning a wide range of masses and accretion rates. These include the magnetic B3 star S1, 2 Herbig Ae/Be stars, 2 class I protostars, 8 classical T Tauri stars, 3 weak-lined T Tauri stars, along with 40-50 new X-ray sources. AXAF's spatial resolution and effective area will allow us to model X-ray spectra of embedded sources not attainable with ROSAT or ASCA.

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