259 citations · 3.5k across the 83 of their papers we have counts for
6 papers · 1 filter
Thin-shell mixing in radiative wind-shocks and the Lx-Lbol scaling of O-star X-rays
Stanley P. Owocki, Jon O. Sundqvist, David H. Cohen +1
X-ray satellites since Einstein have empirically established that the X-ray luminosity from single O-stars scales linearly with bolometric luminosity, Lx ~ 10^{-7} Lbol. But straig…
A Magnetic Confinement vs. Rotation Classification of Massive-Star Magnetospheres
V. Petit, S. P. Owocki, G. A. Wade +12
Building on results from the Magnetism in Massive Stars (MiMeS) project, this paper shows how a two-parameter classification of massive-star magnetospheres in terms of the magnetic…
First 3D MHD simulation of a massive-star magnetosphere with application to Hαemission from θ^1 Ori C
Asif ud-Doula, Jon O. Sundqvist, Stanley P. Owocki +2
We present the first fully 3D MHD simulation for magnetic channeling and confinement of a radiatively driven, massive-star wind. The specific parameters are chosen to represent the…
Clumping in the inner winds of hot, massive stars from hydrodynamical line-driven instability simulations
Jon O. Sundqvist, Stanley P. Owocki
We investigate the effects of stellar limb-darkening and photospheric perturbations for the onset of wind structure arising from the strong, intrinsic line-deshadowing instability…
Diagnosing small- and large-scale structure in the winds of hot, massive OB-star
J. O. Sundqvist, S. P. Owocki
It is observationally as well as theoretically well established that the winds of hot, massive OB-stars are highly structured on a broad range of spatial scales. This paper first d…
A dynamical magnetosphere model for periodic Halpha emission from the slowly rotating magnetic O star HD191612
Jon O. Sundqvist, Asif ud-Doula, Stanley P. Owocki +4
The magnetic O-star HD191612 exhibits strongly variable, cyclic Balmer line emission on a 538-day period. We show here that its variable Halpha emission can be well reproduced by t…