A survey of high-resolution X-ray spectra of classical T Tauri stars

Details A survey of high-resolution X-ray spectra of classical T Tauri stars A survey of high-resolution X-ray spectra of classical T Tauri stars

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005xmm..prop..134h&link_type=abstract

XMM-Newton Proposal ID #04034101

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Stars, White Dwarfs, Solar System, Fk Ser, Xmm-Newton Proposal 04034101

Scientific paper

Comparisons of X-ray emission from accreting and non-accreting T Tauri stars (TTSs) demonstrate that accretion affects the properties of the hot gas, but the origin of X-ray emission from accreting TTSs remains uncertain. The few existing high-resolution X-ray spectra of classical TTSs (CTTSs) have been particularly intriguing, revealing low forbidden-to-intercombination (f/i) line ratios indicative of either a high electron density or intense FUV radiation field, both hard and soft X-ray emission, and often a high Ne abundance relative to O. We propose to obtain RGS spectra of the CTTSs EX Lupi and FK Ser, which when combined with previous high-resolution X-ray spectra will allow us to correlate the f/i ratio with other stellar properties, including the mass accretion rate.

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