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Competitive X-ray and Optical Cooling in the Collisionless Shocks of WR 140
A. M. T. Pollock, M. F. Corcoran, I. R. Stevens +9
WR 140 is a long-period, highly eccentric Wolf-Rayet star binary system with exceptionally well-determined orbital and stellar parameters. Bright, variable X-ray emission is genera…
X-ray spectra, light-curves and SEDs of blazars frequently observed by Swift
P. Giommi, M. Perri, M. Capalbi +19
Blazars research is one of the hot topics of contemporary extra-galactic astrophysics. That is because these sources are the most abundant type of extra-galactic gamma-ray sources…
The Colliding Winds of WR 25 in High Resolution X-rays
Pragati Pradhan, David P. Huenemoerder, Richard Ignace +2
WR 25 is a colliding-wind binary star system comprised of a very massive O2.5If*/WN6 primary and an O-star secondary in a 208-day period eccentric orbit. These hot stars have stron…
Phase connected X-ray light curve and He II RV measurements of NGC 300 X-1
S. Carpano, F. Haberl, P. Crowther +1
NGC300 X-1 and IC10 X-1 are currently the only two robust extragalactic candidates for being Wolf-Rayet/black hole X-ray binaries, the Galactic analogue being Cyg X-3. These system…
Long-term study of the Double Pulsar J0737-3039 with XMM-Newton: spectral analysis
Elise Egron, Alberto Pellizzoni, Andy Pollock +4
We present a long-term spectral monitoring of the unique Double Pulsar binary PSR J0737-3039 corresponding to two "Large Programs" performed by XMM-Newton in 2006 and 2011. Spectra…
Hydrodynamic and radiative transfer modeling of X-ray emission from colliding WR winds: WR 140 & the Galactic center
Christopher M. P. Russell, Michael F. Corcoran, Jorge Cuadra +6
Colliding Wolf-Rayet (WR) winds produce thermal X-ray emission widely observed by X-ray telescopes. In wide WR+O binaries, such as WR 140, the X-ray flux is tied to the orbital pha…