200 citations · 2.4k across the 50 of their papers we have counts for
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astro-ph.SR2009★ 30 cited
No Transition Disk? Infrared Excess, PAH, H2, and X-rays from the Weak-Lined T Tauri Star DoAr 21
Eric L. N. Jensen, David H. Cohen, Marc Gagné
We present new high-resolution mid-infrared imaging, high-resolution optical spectroscopy, and Chandra grating X-ray spectroscopy of the weak-lined T Tauri star DoAr 21. DoAr 21 (a…
astro-ph.SR2009★ 1 cited
X-ray Spectroscopy of the Radiation-Driven Winds of Massive Stars: Line Profile and Line Ratio Diagnostics
David H. Cohen
Massive stars drive powerful, supersonic winds via the radiative momentum associated with the thermal UV emission from their photospheres. Shock phenomena are ubiquitous in these w…