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XMM-Newton Observations Reveal Very High X-ray Luminosity from the Carbon-rich Wolf-Rayet Star WR 48a
Svetozar A. Zhekov, Marc Gagne, Stephen L. Skinner
We present XMM-Newton observations of the dusty Wolf-Rayet star WR 48a. This is the first detection of this object in X-rays. The XMM-Newton EPIC spectra are heavily absorbed and t…
Chandra Reveals Variable Multi-Component X-ray Emission from FU Orionis
Stephen L. Skinner, Manuel Guedel, Kevin R. Briggs +1
FU Orionis is the prototype of a class of eruptive young stars (``FUors'') characterized by strong optical outbursts. We recently completed an exploratory survey of FUors using XMM…
Chandra Detects the Rare Oxygen-type Wolf-Rayet Star WR 142 and OB Stars in Berkeley 87
Kimberly R. Sokal, Stephen L. Skinner, Svetozar A. Zhekov +2
We present first results of a Chandra X-ray observation of the rare oxygen-type Wolf-Rayet star WR 142 (= Sand 5 = St 3) harbored in the young, heavily-obscured cluster Berkeley 87…