259 citations · 3.5k across the 83 of their papers we have counts for
7 papers · 1 filter
Rotation, spectral variability, magnetic geometry and magnetosphere of the Of?p star CPD -28 2561
G. A. Wade, R. H. Barbá, J. Grunhut +14
We report magnetic and spectroscopic observations and modeling of the Of?p star CPD -28 2561. Using more than 75 new spectra, we have measured the equivalent width variations and e…
Physics of mass loss in massive stars
J. Puls, J. O. Sundqvist, N. Markova
We review potential mass-loss mechanisms in the various evolutionary stages of massive stars, from the well-known line-driven winds of O-stars and BA-supergiants to the less-unders…
Measuring the shock-heating rate in the winds of O stars using X-ray line spectra
David H. Cohen, Zequn Li, Kenneth G. Gayley +4
We present a new method for using measured X-ray emission line fluxes from O stars to determine the shock-heating rate due to instabilities in their radiation-driven winds. The hig…
Constraining general massive-star physics by exploring the unique properties of magnetic O-stars: Rotation, macroturbulence, and sub-surface convection
Jon O. Sundqvist
A quite remarkable aspect of non-interacting O-stars with detected surface magnetic fields is that they all are very slow rotators. This paper uses this unique property to first de…
UVMag: stellar formation, evolution, structure and environment with space UV and visible spectropolarimetry
C. Neiner, D. Baade, A. Fullerton +10
Important insights into the formation, structure, evolution and environment of all types of stars can be obtained through the measurement of their winds and possible magnetospheres…
Mass loss from inhomogeneous hot star winds III. An effective-opacity formalism for line radiative transfer in accelerating, clumped two-component media, and first results on theory and diagnostics
J. O. Sundqvist, J. Puls, S. P. Owocki
[Abridged] We develop and benchmark a fast and easy-to-use effective-opacity formalism for line and continuum radiative transfer in an accelerating two-component clumpy medium. The…