Publications (66)
The extreme O-type spectroscopic binary HD 93129A
D. Gruner, R. Hainich, A. A. C. Sander +6
Hydrodynamic model atmospheres for WR stars: Self-consistent modeling of a WC star wind
G. Gräfener, W. -R. Hamann
Discovery of a new Wolf-Rayet star and a candidate star cluster in the Large Magellanic Cloud with Spitzer
V. V. Gvaramadze, A. -N. Chene, A. Y. Kniazev +8
On the super-orbital modulation of supergiant high mass X-ray binaries
E. Bozzo, L. Oskinova, A. Lobel +1
X-ray emission from massive stars with magnetic fields
L. M. Oskinova, W. -R. Hamann, J. P. Cassinelli +2
Spectroscopy and hydrodynamics of dense stellar winds
W. -R. Hamann, G. Graefener, L. M. Oskinova +1
Low-metallicity massive single stars with rotation. II. Predicting spectra and spectral classes of chemically-homogeneously evolving stars
B. Kubátová, D. Szécsi, A. A. C. Sander +7
Discovery of two new Galactic candidate luminous blue variables with WISE
V. V. Gvaramadze, A. Y. Kniazev, A. S. Miroshnichenko +28
Weak magnetic fields in central stars of planetary nebulae?
M. Steffen, S. Hubrig, H. Todt +4
On X-ray pulsations in beta Cephei-type variables
L. M. Oskinova, H. Todt, D. P. Huenemoerder +4
Rebirth of X-ray Emission from the Born-Again Planetary Nebula A 30
M. A. Guerrero, N. Ruiz, W. -R. Hamann +8
The Tarantula Massive Binary Monitoring project: II. A first SB2 orbital and spectroscopic analysis for the Wolf-Rayet binary R145
T. Shenar, N. D. Richardson, D. P. Sablowski +19
Comprehensive modelling of the planetary nebula LMC-SMP 61 and its [WC]-type central star
G. StasiÅska, G. Gräfener, M. Peña +3
Abell 48 - a rare WN-type central star of a planetary nebula
H. Todt, A. Y. Kniazev, V. V. Gvaramadze +18
The rapid evolution of the exciting star of the Stingray Nebula
N. Reindl, T. Rauch, M. Parthasarathy +5
The Masses of Late-Type WN Stars
G. Gräfener, W. -R. Hamann
Determining element abundances of [WC]-type Central Stars for probing stellar evolution and nucleosynthesis
H. Todt, M. Peña, W. -R. Hamann +1
Are WNL stars tracers of high metallicity?
G. Gräfener, W. -R. Hamann
The born-again planetary nebula A78: an X-ray twin of A30
J. A. Toalá, M. A. Guerrero, H. Todt +8
The Quintuplet Cluster II. Analysis of the WN stars
A. Liermann, W. -R. Hamann, L. M. Oskinova +2
Hard X-ray emission in the star-forming region ON2: discovery with XMM-Newton
L. M. Oskinova, R. A. Gruendl, R. Ignace +3
X-raying clumped stellar winds
L. M. Oskinova, W. -R. Hamann, A. Feldmeier
Observational properties of massive black hole binary progenitors
R. Hainich, L. M. Oskinova, T. Shenar +6
One of the most massive stars in the Galaxy may have formed in isolation
L. M. Oskinova, M. Steinke, W. -R. Hamann +3
X-ray emission lines from inhomogeneous stellar winds
L. M. Oskinova, A. Feldmeier, W. -R. Hamann
The Conspicuous Absence of X-ray Emission from Carbon-Enriched Wolf-Rayet Stars
L. M. Oskinova, R. Ignace, W. -R. Hamann +2
Measuring the stellar wind parameters in IGR J17544-2619 and Vela X-1 constrains the accretion physics in Supergiant Fast X-ray Transient and classical Supergiant X-ray Binaries
A. Gimenez-Garcia, T. Shenar, J. M. Torrejon +9
Neglecting the porosity of hot-star winds can lead to underestimating mass-loss rates
L. M. Oskinova, W. -R. Hamann, A. Feldmeier
Quantitative X-ray spectroscopy of massive stars
L. M. Oskinova, W. -R. Hamann, A. Feldmeier
Early magnetic B-type stars: X-ray emission and wind properties
L. M. Oskinova, H. Todt, R. Ignace +3
Are Wolf-Rayet winds driven by radiation?
G. Gräfener, W. -R. Hamann
The central star of the planetary nebula PB 8: a Wolf-Rayet-type wind of an unusual WN/WC chemical composition
H. Todt, M. Peña, W. -R. Hamann +1
Stellar population of the superbubble N206 in the LMC I. Analysis of the Of-type stars
Varsha Ramachandran, R. Hainich, W. -R. Hamann +5
Discovery of a new Wolf-Rayet star and its ring nebula in Cygnus
V. V. Gvaramadze, S. Fabrika, W. -R. Hamann +6
The metallicity dependence of WR winds
R. Hainich, T. Shenar, A. Sander +2
High-resolution X-ray spectroscopy reveals the special nature of Wolf-Rayet star winds
L. M. Oskinova, K. G. Gayley, W. -R. Hamann +3
Macroclumping as solution of the discrepancy between Hα and P v mass loss diagnostics for O-type stars
B. Å urlan, W. -R. Hamann, A. Aret +3
Wolf-Rayet stars in the Small Magellanic Cloud: II. Analysis of the binaries
T. Shenar, R. Hainich, H. Todt +7
Two extremely luminous WN stars in the Galactic center with circumstellar emission from dust and gas
A. Barniske, L. M. Oskinova, W. -R. Hamann
The Quintuplet Cluster I. A K-band spectral catalog of stellar sources
A. Liermann, W. -R. Hamann, L. M. Oskinova
Searching for a magnetic field in Wolf-Rayet stars using FORS2 spectropolarimetry
S. Hubrig, K. Scholz, W. -R. Hamann +5
The Shortest-period Wolf-Rayet binary in the Small Magellanic Cloud: Part of a high-order multiple system
T. Shenar, R. Hainich, H. Todt +8
A combined HST and XMM-Newton campaign for the magnetic O9.7 V star HD 54879: towards constraining the weak-wind problem of massive stars
T. Shenar, L. M. Oskinova, S. P. Järvinen +7
The Wolf-Rayet stars in the Large Magellanic Cloud: A comprehensive analysis of the WN class
R. Hainich, U. Rühling, H. Todt +6
Analysis of the WN star WR 102c, its WR nebula, and the associated cluster of massive stars in the Sickle Nebula
M. Steinke, L. M. Oskinova, W. -R. Hamann +3
PoWR grids of non-LTE model atmospheres for OB-type stars of various metallicities
R. Hainich, V. Ramachandran, T. Shenar +5
The B Fields in OB Stars (BOB) Survey
T. Morel, N. Castro, L. Fossati +29
Very Massive Stars (VMS) in the Local Universe
Jorick S. Vink, Alexander Heger, Mark R. Krumholz +25
A rare early-type star revealed in the Wing of the Small Magellanic Cloud
C. J. Evans, R. Hainich, L. M. Oskinova +6
The metallicity dependence of WR wind models
G. Gräfener, W. -R. Hamann
Stellar population of the superbubble N206 in the LMC II. Parameters of the OB and WR stars, and the total massive star feedback
Varsha Ramachandran, W. -R. Hamann, R. Hainich +5
Wolf-Rayet stars in the Small Magellanic Cloud: I. Analysis of the single WN stars
R. Hainich, D. Pasemann, H. Todt +3
On the apparent absence of WR+NS systems: the curious case of WR124
J. A. Toala, L. M. Oskinova, W. -R. Hamann +8
Revised element abundances for WC-type central stars
H. Todt, G. Gräfener, W. -R. Hamann
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
The VLT-FLAMES Survey of Massive Stars: Observations in the Galactic Clusters NGC 3293, NGC 4755 and NGC 6611
C. J. Evans, S. J. Smartt, J. -K. Lee +23
New Wolf-Rayet star and its circumstellar nebula in Aquila
V. V. Gvaramadze, A. Y. Kniazev, W. -R. Hamann +3
Discovery of X-ray Emission from the Wolf-Rayet star WR142 of oxygen subtype
L. M. Oskinova, W. -R. Hamann, A. Feldmeier +2
O Star X-ray Line Profiles Explained by Radiation Transfer in Inhomogeneous Stellar Wind
L. M. Oskinova, A. Feldmeier, W. -R. Hamann
The Galactic WN stars: Spectral analyses with line-blanketed model atmospheres versus stellar evolution models with and without rotation
W. -R. Hamann, G. Graefener, A. Liermann
The Quintuplet Cluster III. Hertzsprung-Russell diagram and cluster age
A. Liermann, W. -R. Hamann, L. M. Oskinova
On the binary nature of massive blue hypergiants: high-resolution X-ray spectroscopy suggests that Cyg OB2 12 is a colliding wind binary
L. M. Oskinova, D. P. Huenemoerder, W. -R. Hamann +4
X-ray emission from hydrodynamical simulations in non-LTE wind models
J. Krticka, A. Feldmeier, L. M. Oskinova +2
High resolution X-ray spectroscopy of bright O type stars
L. M. Oskinova, A. Feldmeier, W. -R. Hamann
Puzzling X-rays from the new colliding wind binary WR65
L. M. Oskinova, W. -R. Hamann
Mass loss from late-type WN stars and its Z-dependence: very massive stars approaching the Eddington limit
G. Graefener, W. -R. Hamann