372 citations · 1.2k across the 27 of their papers we have counts for
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High-Energy Processes in Young Stars: Chandra X-ray Spectroscopy of HDE 283572, RY Tau, and LkCa 21
Marc Audard, Stephen L. Skinner, Kester W. Smith +2
Weak-lined T Tauri stars (WTTS) represent the important stage of stellar evolution between the accretion phase and the zero-age main sequence. At this stage, the star decouples fro…
Some Like it Hot: The X-Ray Emission of The Giant Star YY Mensae
Marc Audard, Alessandra Telleschi, Manuel Guedel +3
(Abridged abstract) We present an analysis of the X-ray emission of the rapidly rotating giant star YY Mensae observed by Chandra HETGS and XMM-Newton. Although no obvious flare wa…
Simultaneous Chandra and VLA Observations of Young Stars and Protostars in rho Ophiuchus Cloud Core A
Marc Gagne, Stephen L. Skinner, Kathryne J. Daniel
A 96-ks Chandra X-ray observation of rho Ophiuchus cloud core A detected 87 sources, of which 60 were identified with counterparts at other wavelengths. The X-ray detections includ…
New Perspectives on the X-ray Emission of HD 104237 and Other Nearby Herbig Ae/Be Stars from XMM-Newton and Chandra
S. Skinner, M. Guedel, M. Audard +1
We present new X-ray observations of the nearby Herbig Ae star HD 104237 (= DX Cha) with XMM-Newton, whose objective is to clarify the origin of the emission. Several X-ray emissio…
Wind clumping and the wind-wind collision zone in the Wolf-Rayet binary gamma Velorum
H. Schild, M. Guedel, R. Mewe +7
We present XMM-Newton observations of gamma^2 Velorum (WR 11, WC8+O7.5III, P = 78.53 d), a nearby Wolf-Ray binary system, at its X-ray high and low states. At high state, emission…
A Multi-Wavelength Perspective of Flares on HR 1099: Four Years of Coordinated Campaigns
R. A. Osten, A. Brown, T. R. Ayres +7
We report on four years of multiple wavelength observations of the RS CVn system V711 Tau (HR 1099) from 1993, 1994, 1996, and 1998. This combination of radio, ultraviolet, extreme…