1.1k citations
- Centre National de la Recherche ScientifiqueFR12 papers
- Imperial College LondonGB11 papers
- Leibniz Institute for Astrophysics PotsdamDE9 papers
- Technische Universität BerlinDE8 papers
- Max Planck Institute for the Physics of Complex SystemsDE6 papers
- Max Planck SocietyDE6 papers
- Universität InnsbruckAT6 papers
- Carl von Ossietzky Universität OldenburgDE5 papers
- Columbia UniversityUS5 papers
- Perm State UniversityRU5 papers
- Université Fédérale de Toulouse Midi-PyrénéesFR5 papers
- Université Toulouse III - Paul SabatierFR5 papers
34 papers · 1 filter
X-rays, clumping and stellar wind structures
Lidia Oskinova, Wolf-Rainer Hamann, Richard Ignace +1
X-ray emission is ubiquitous among massive stars. In the last decade, X-ray observations revolutionized our perception of stellar winds but opened a Pandora's box of urgent problem…
The Quintuplet Cluster II. Analysis of the WN stars
A. Liermann, W. -R. Hamann, L. M. Oskinova +2
Based on -band integral-field spectroscopy, we analyze four Wolf-Rayet stars of the nitrogen sequence (WN) found in the inner part of the Quintuplet cluster. All WN stars (WR102…
Bosonic enhancement of spontaneous emission near an interface
Jürgen Schiefele, Carsten Henkel
We show how the spontaneous emission rate of an excited two-level atom placed in a trapped Bose-Einstein condensate of ground-state atoms is enhanced by bosonic stimulation. This s…
Pattern Formation Induced by Time-Dependent Advection
A. V. Straube, A. Pikovsky
We study pattern-forming instabilities in reaction-advection-diffusion systems. We develop an approach based on Lyapunov-Bloch exponents to figure out the impact of a spatially per…
Photospheric flux cancellation and associated flux rope formation and eruption
L. M. Green, B. Kliem, A. J. Wallace
We study an evolving bipolar active region that exhibits flux cancellation at the internal polarity inversion line, the formation of a soft X-ray sigmoid along the inversion line a…
Asymptotic Parametrices of Elliptic Edge Operators
H. -J. Flad, G. Harutyunyan, B. -W. Schulze
We study operators on a singular manifold, here of conical or edge type, and develop a new general approach of representing asymptotics of solutions to elliptic equations close to…