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- Centre National de la Recherche ScientifiqueFR423 papers
- Leibniz Institute for Astrophysics PotsdamDE402 papers
- Deutsches Elektronen-Synchrotron DESYDE252 papers
- Heidelberg UniversityDE210 papers
- Humboldt-Universität zu BerlinDE202 papers
- Center for Astrophysics Harvard & SmithsonianUS172 papers
- Friedrich-Alexander-Universität Erlangen-NürnbergDE172 papers
- Universität HamburgDE171 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR157 papers
- Institute of Nuclear Physics, Polish Academy of SciencesPL155 papers
- University of California, Santa CruzUS155 papers
- École PolytechniqueFR154 papers
159 papers · 1 filter
Synchronization mechanism of sharp edges in rings of Saturn
D. L. Shepelyansky, A. S. Pikovsky, J. Schmidt +1
We propose a new mechanism which explains the existence of enormously sharp edges in the rings of Saturn. This mechanism is based on the synchronization phenomenon due to which the…
Stellar dynamos with effect
V. V. Pipin, N. Seehafer
We study axisymmetric mean-field dynamo models containing differential rotation, the effect and the additional turbulent induction effects. The additional effects result from t…
The Quintuplet Cluster I. A K-band spectral catalog of stellar sources
A. Liermann, W. -R. Hamann, L. M. Oskinova
Three very massive clusters are known to reside in the Galactic Center region, the Arches cluster, the Quintuplet cluster and the Central parsec cluster. We obtained spectroscopic…
Puzzling X-rays from the new colliding wind binary WR65
L. M. Oskinova, W. -R. Hamann
We report the discovery of variability in the X-ray emission from the Wolf-Rayet type star WR 65. Using archival Chandra data spanning over 5 yr we detect changes of the X-ray flux…
The stellar content of the Hamburg/ESO survey. V. The metallicity distribution function of the Galactic halo
T. Schoerck, N. Christlieb, J. G. Cohen +22
We determine the metallicity distribution function (MDF) of the Galactic halo by means of a sample of 1638 metal-poor stars selected from the Hamburg/ESO objective-prism survey (HE…
Two extremely luminous WN stars in the Galactic center with circumstellar emission from dust and gas
A. Barniske, L. M. Oskinova, W. -R. Hamann
We study relatively isolated massive WN-type stars in the Galactic center. The K-band spectra of WR102ka and WR102c are exploited to infer the stellar parameters and to compute syn…