36 citations · 61 across the 3 of their papers we have counts for
3 papers
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…
On X-ray Optical Depth in the Coronae of Active Stars
Paola Testa, Jeremy J. Drake, Giovanni Peres +1
We have investigated the optical thickness of the coronal plasma through the analysis of high-resolution X-ray spectra of a large sample of active stars observed with the High Ener…
X-ray Variability in the Young Massive Triple theta2 Ori A
Norbert S. Schulz, Paola Testa, David P. Huenemoerder +2
Massive stars rarely show intrinsic X-ray variability. The only O-stars credited to be intrinsically variable are theta1 Ori C due to effects from magnetic confinement of its wind,…