ASCA X-ray observations of pre-main-sequence stars.

Details ASCA X-ray observations of pre-main-sequence stars. ASCA X-ray observations of pre-main-sequence stars.

Feb 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996rftu.proc...69s&link_type=abstract

International Conference on X-ray Astronomy and Astrophysics: Röntgenstrahlung from the Universe, p. 69 - 70

Astronomy and Astrophysics

Astrophysics

2

Pre-Main-Sequence Stars: X Rays

Scientific paper

The authors present results of ASCA X-ray observations of two pre-main-sequence stars: the weak emission line T Tauri star HD 142361 (G2 IV) and the Herbig Ae star HD 104237 (A4e). The solid-state imaging spectrometer (SIS) spectra for HD 142361 show a clear emission line from H-like Mg XII (1.47 keV) and spectral fits reveal a multi-temperature plasma with a hot component of at least 16 MK. The SIS spectra of HD 104237 show a complex temperature structure with the hottest plasma at temperatures in excess of ≡30 MK (2.5 keV). Thus, mechanisms that predict only soft X-ray emission (≤1 keV) can now be ruled out for Herbig Ae stars.

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