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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
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51 papers · 1 filter
Revised element abundances for WC-type central stars
H. Todt, G. Gräfener, W. -R. Hamann
According to previous spectral analyses of Wolf-Rayet type central stars, late [WC] subtypes show systematically higher carbon-to-helium abundance ratios than early [WC] subtypes.…
Determining element abundances of [WC]-type Central Stars for probing stellar evolution and nucleosynthesis
H. Todt, M. Peña, W. -R. Hamann +1
[WC]-type CSPNs are hydrogen-deficient Central Stars of Planetary Nebulae showing strong stellar winds and a carbon-rich chemistry. We have analyzed new high-resolution spectra of…
Quantum-limited position measurements of a dark matter-wave soliton
Antonio Negretti, Carsten Henkel, Klaus Molmer
We show that the position of a dark matter-wave soliton can be determined with a precision that scales with the atomic density as . This surpasses the standard shot-noise…
Non-linear force-free field modeling of a solar active region around the time of a major flare and coronal mass ejection
C. J. Schrijver, M. L. DeRosa, T. Metcalf +14
Solar flares and coronal mass ejections are associated with rapid changes in field connectivity and powered by the partial dissipation of electrical currents in the solar atmospher…
Phase-dependent X-ray observations of the beta Lyrae system: No eclipse in the soft band
R. Ignace, L. M. Oskinova, W. L. Waldron +2
We report on observations of the eclipsing and interacting binary beta Lyrae from the Suzaku X-ray telescope. This system involves an early B star embedded in an optically and geom…
Casimir interaction between absorbing and meta Materials
F. Intravaia, C. Henkel
We investigate the Casimir energy between two dissipative mirrors in term of a sum over mode formula which can be interpreted by analogy to a quantum dissipative oscillator. We als…