X-ray emission from an adolescent classical T Tauri star

Details X-ray emission from an adolescent classical T Tauri star X-ray emission from an adolescent classical T Tauri star

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005xmm..prop..223m&link_type=abstract

XMM-Newton Proposal ID #04060301

Physics

Stars, White Dwarfs, Solar System, Mp Mus, Xmm-Newton Proposal 04060301

Scientific paper

We propose to perform high-resolution X-ray spectroscopy of MP Muscae, a classical T Tauri star with an age of about 10 Myr, and hence quite old for its class. In fact, MP Mus is the only known star of this age with evidence of an accretion disk, found in a survey of the Lower Centaurus-Crux subgroup in the Scorpius- Centaurus association. Moreover, this star also shows evidence of a cold dusty disk, as indicated by excess emission at IR and mm wavelengths. The proposed observation will allow us to address several issues concerning the evolution of the X-ray emission in pre-main-sequence stars, the mechanism(s) of such emission, the element abundances of the emitting plasma, and the influence of high-energy radiation on the surrounding medium where planetary formation is likely occurring.

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