TY  - THES
A1  - Wolf, Angelika
T1  - Sprachverstehen mit Cochlea-Implantat : EKP-Studien mit postlingual ertaubten erwachsenen CI-Trägern
T2  - MPI series in human cognitive and brain sciences
Y1  - 2004
SN  - 3-936816-17-4
VL  - 44
PB  - Max-Planck-Institut für Kognitions- und Neurowissenschaften
CY  - Leipzig
ER  - 
TY  - JOUR
A1  - Martinez-Nunez, Silvia
A1  - Sander, Angelika
A1  - Gimenez-Garcia, Angel
A1  - Gonzalez-Galan, Ana
A1  - Torrejon, Jose Miguel
A1  - Gonzalez-Fernandez, Carlos
A1  - Hamann, Wolf-Rainer
T1  - The donor star of the X-ray pulsar X1908+075
JF  - Astronomy and astrophysics : an international weekly journal
N2  - High-mass X-ray binaries consist of a massive donor star and a compact object. While several of those systems have been well studied in X-rays, little is known for most of the donor stars as they are often heavily obscured in the optical and ultraviolet regime. There is an opportunity to observe them at infrared wavelengths, however. The goal of this study is to obtain the stellar and wind parameters of the donor star in the X1908+075 high-mass X-ray binary system with a stellar atmosphere model to check whether previous studies from X-ray observations and spectral morphology lead to a sufficient description of the donor star. We obtained H-and K-band spectra of X1908+075 and analysed them with the Potsdam Wolf-Rayet (PoWR) model atmosphere code. For the first time, we calculated a stellar atmosphere model for the donor star, whose main parameters are: M-spec = 15 +/- 6 M-circle dot, T-* = 23(-3)(+6) kK, log g(eff) = 3.0 +/- 0.2 and log L/L-circle dot = 4.81 +/- 0.25. The obtained parameters point towards an early B-type (B0-B3) star, probably in a supergiant phase. Moreover we determined a more accurate distance to the system of 4.85 +/- 0.50 kpc than the previously reported value.
KW  - binaries: close
KW  - stars: individual: X1908+075
KW  - stars: massive
KW  - stars: winds
KW  - outflows
KW  - X-rays: binaries
Y1  - 2015
U6  - https://doi.org/10.1051/0004-6361/201424823
SN  - 0004-6361
SN  - 1432-0746
VL  - 578
PB  - EDP Sciences
CY  - Les Ulis
ER  - 
TY  - JOUR
A1  - Todt, Helge Tobias
A1  - Sander, Angelika
A1  - Hainich, Rainer
A1  - Hamann, Wolf-Rainer
A1  - Quade, Markus
A1  - Shenar, Tomer
T1  - Potsdam Wolf-Rayet model atmosphere grids for WN stars
JF  - Astronomy and astrophysics : an international weekly journal
N2  - We present new grids of Potsdam Wolf-Rayet (PoWR) model atmospheres for Wolf-Rayet stars of the nitrogen sequence (WN stars). The models have been calculated with the latest version of the PoWR stellar atmosphere code for spherical stellar winds. The WN model atmospheres include the non-LTE solutions of the statistical equations for complex model atoms, as well as the radiative transfer equation in the co-moving frame. Iron-line blanketing is treated with the help of the superlevel approach, while wind inhomogeneities are taken into account via optically thin clumps. Three of our model grids are appropriate for Galactic metallicity. The hydrogen mass fraction of these grids is 50%, 20%, and 0%, thus also covering the hydrogen-rich late-type WR stars that have been discovered in recent years. Three grids are adequate for LMC WN stars and have hydrogen fractions of 40%, 20%, and 0%. Recently, additional grids with SMC metallicity and with 60%, 40%, 20%, and 0% hydrogen have been added. We provide contour plots of the equivalent widths of spectral lines that are usually used for classification and diagnostics.
KW  - stars: evolution
KW  - stars: mass-loss
KW  - stars: winds, outflows
KW  - stars: Wolf-Rayet
KW  - stars: atmospheres
KW  - stars: massive
Y1  - 2015
U6  - https://doi.org/10.1051/0004-6361/201526253
SN  - 0004-6361
SN  - 1432-0746
VL  - 579
PB  - EDP Sciences
CY  - Les Ulis
ER  - 
TY  - GEN
A1  - Liermann, Angelika
A1  - Hamann, Wolf-Rainer
A1  - Oskinova, Lida
T1  - The quintuplet cluster III. Hertzsprung-Russell diagram and cluster age (vol 540, pg A14, 2012)
T2  - Astronomy and astrophysics : an international weekly journal
KW  - open clusters and associations: individual: Quintuplet
KW  - infrared: stars
KW  - stars: early-type
KW  - stars: late-type
KW  - Hertzsprung-Russell and C-M diagrams
KW  - errata, addenda
Y1  - 2014
U6  - https://doi.org/10.1051/0004-6361/201117534e
SN  - 0004-6361
SN  - 1432-0746
VL  - 563
PB  - EDP Sciences
CY  - Les Ulis
ER  - 
TY  - JOUR
A1  - Dieter, Anne
A1  - Emmerich-Fritsche, Angelika
A1  - Layus, Rosario Figari
A1  - Gréciano, Philippe
A1  - Gulina, Olga R.
A1  - Klein, Eckart
A1  - Kintzel, Yvonne
A1  - Martaguet, Laurent
A1  - Meyer, Gunda
A1  - Voigt, Sonja
A1  - Weiß, Norman
A1  - Wolf, Catherine
T1  - MenschenRechtsMagazin : Informationen │ Meinungen │ Analysen
N2  - • Meinungsfreiheit und Ehrenschutz • Kulturtranszendenz und kulturkritische Elemente der Menschenwürde • Bericht über die Arbeit des Menschenrechtsausschusses der Vereinten Nationen im Jahre 2007 –Teil I • Prosecutor ./. Milan Martić, Urteil des Internationalen Strafgerichtshofs für das ehemalige Jugoslawien
T3  - MenschenRechtsMagazin : MRM ; Informationen, Meinungen, Analysen - 13.2008/1 
Y1  - 2008
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-36623
SN  - 1434-2820
VL  - 13
IS  - 1
PB  - Universitätsverlag Potsdam
CY  - Potsdam
ER  -