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ASCA X-ray observations of pre-main-sequence starsThe results of recent Advanced Satellite for Cosmology and Astrophysics (ASCA) X-ray observations of two pre-main sequence stars are presented: the weak emission line T Tauri star HD 142361, and the Herbig Ae star HD 104237. The solid state imaging spectrometer spectra for HD 142361 shows a clear emission line from H-like Mg 7, and spectral fits reveal a multiple temperature plasma with a hot component of at least 16 MK. The spectra of HD 104237 show a complex temperature structure with the hottest plasma at temperatures of greater than 30 MK. It is concluded that mechanisms that predict only soft X-ray emission can be dismissed for Herbig Ae stars.
Document ID
19970024516
Acquisition Source
Headquarters
Document Type
Conference Paper
Authors
Skinner, S. L. (Joint Inst. for Lab. Astrophysics Boulder, CO United States)
Walter, F. M. (State Univ. of New York Stony Brook, NY United States)
Yamauchi, S. (Iwate Univ. Morioka, Japan)
Date Acquired
August 17, 2013
Publication Date
February 1, 1996
Publication Information
Publication: Conference proceedings of the International Conference on X-Ray Astronomy and Astrophysics
Subject Category
Astronomy
Accession Number
97N24273
Funding Number(s)
CONTRACT_GRANT: NAGw-4673
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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