204 citations · 3.1k across the 72 of their papers we have counts for
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Hot thermal X-ray emission from the Be star HD119682
J. M. Torrejon, N. S. Schulz, M. A. Nowak +2
We present an analysis of a series of four consecutive Chandra high resolution transmission gratings observations, amounting to a total of 150 ks, of the Be X-ray source HD119682 (…
Detailed X-Ray Line Properties of Theta2 Ori A in Quiescence
Arik W. Mitschang, Norbert S. Schulz, David P. Huenemoerder +2
We investigate X-ray emission properties of the peculiar X-ray source Theta2 Ori A in the Orion trapezium region using more than 500 ksec of HETGS spectral data in the quiescent st…
X-ray Flares of EV Lac: Statistics, Spectra, Diagnostics
David P. Huenemoerder, Norbert S. Schulz, Paola Testa +3
We study the spectral and temporal behavior of X-ray flares from the active M-dwarf EV Lac in 200 ks of exposure with the Chandra/HETGS. We derive flare parameters by fitting an em…
Structure and Evolution of Pre-Main Sequence Stars
Norbert S. Schulz, Glenn Allen, Mark W. Bautz +28
Low-mass pre-main sequence (PMS) stars are strong and variable X-ray emitters, as has been well established by EINSTEIN and ROSAT observatories. It was originally believed that thi…