TY  - CHAP
A1  - Bouret, J.-C.
A1  - Lanz, T.
A1  - Hillier, D. J.
A1  - Foellmi, C.
T1  - Clumping in O-type Supergiants
N2  - We have analyzed the spectra of seven Galactic O4 supergiants, with the NLTE wind code CMFGEN. For all stars, we have found that clumped wind models match well lines from different species spanning a wavelength range from FUV to optical, and remain consistent with Hα data. We have achieved an excellent match of the P V λλ1118, 1128 resonance doublet and N IV λ1718, as well as He II λ4686 suggesting that our physical description of clumping is adequate. We find very small volume filling factors and that clumping starts deep in the wind, near the sonic point. The most crucial consequence of our analysis is that the mass loss rates of O stars need to be revised downward significantly, by a factor of 3 and more compared to those obtained from smooth-wind models.
Y1  - 2007
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-17662
ER  - 
TY  - CHAP
A1  - Walter, R.
A1  - Zurita-Heras, J.
A1  - Leyder, J.-C.
T1  - Probing clumpy stellar winds with a neutron star
N2  - INTEGRAL tripled the number of super-giant high-mass X-ray binaries (sgHMXB) known in the Galaxy by revealing absorbed and fast transient (SFXT) systems. Quantitative constraints on the wind clumping of massive stars can be obtained from the study of the hard X-ray variability of SFXT. A large fraction of the hard X-ray emission is emitted in the form of flares with a typical duration of 3 ksec, frequency of 7 days and luminosity of $10^{36}$ erg/s. Such flares are most probably emitted by the interaction of a compact object orbiting at $\sim10~R_*$ with wind clumps ($10^{22 ... 23}$ g) representing a large fraction of the stellar mass-loss rate. The density ratio between the clumps and the inter-clump medium is $10^{2 ... 4}$. The parameters of the clumps and of the inter-clump medium, derived from the SFXT flaring behavior, are in good agreement with macro-clumping scenario and line-driven instability simulations. SFXT are likely to have larger orbital radius than classical sgHMXB.
Y1  - 2007
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-18024
ER  - 
TY  - CHAP
A1  - Runacres, M. C.
T1  - Hydrodynamical models of clumping beyond 50 R∗
N2  - We present one-dimensional, time-dependent models of the clumps generated by the linedeshadowing instability. In order to follow the clumps out to distances of more than 1000 R∗, we use an efficient moving-box technique. We show that, within the approximations, the wind can remain clumped well into the formation region of the radio continuum.
Y1  - 2007
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-18030
ER  - 
TY  - CHAP
A1  - Iping, R.C.
A1  - Sonneborn, G.
A1  - Massa, D.L.
A1  - Gies, D.
A1  - Williams, Simon E.
T1  - Far-ultraviolet spectroscopy of O+O binaries in the Magellanic Clouds
N2  - We report FUSE observations in 2005–2006 of three O-type, double-lined spectroscopic binaries in the Magellanic Clouds. The systems have very short periods (1.4–2.25 d), represent rare, young evolutionary stages of massive stars and binaries, and provide a unique glimpse at some of the most massive systems that form in dense clusters of massive stars. Improved orbit parameters, including revised masses, for LH54-425 are derived from new ctio spectroscopy. The systems are: LH54-425 in the LMC (O3V + O5V, P=2.25d, 62+37M⊙), J053441-693139 in the LMC (O2-3If+O6V, P=1.4 d, 41+27M⊙), and Hodge 53-47 in the SMC (O6V + O4-5IIIf, P=2.2 d, 24+14M⊙, where the O4 star appears to be less massive than the O6 star). Their short periods indicates that wind interaction and mass transfer are likely important factors in their evolution. The spectra provide quantitative and systematic studies of phase-dependent stellar wind properties, wind collision effects in O+O binaries at lower metallicities, improved radial velocity curves, and FUV spectro-photometric changes as a function of orbital phase.
Y1  - 2007
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-17896
ER  - 
TY  - CHAP
A1  - Prokop, A.
A1  - Zadolinnaya, S.
A1  - Abduvaliev, A.
A1  - Frias, C.
A1  - Hagenow, K.
A1  - Voigt, A.
A1  - Tatarskiy, V.
T1  - Novel copper complexes with potent/synergistic antitumor activity in vivo and promising clinical activity
T2  - Journal of clinical oncology
Y1  - 2011
SN  - 0732-183X
SN  - 1527-7755
VL  - 29
IS  - 15
PB  - American Society of Clinical Oncology
CY  - Alexandria
ER  - 
TY  - CHAP
A1  - Biglu, S.
A1  - Biglu, M. H.
A1  - Falk, C.
T1  - Scientometric study of scientific production n psyciatry
T2  - European psychiatry : the journal of the Association of European Psychiatrists
Y1  - 2011
SN  - 0924-9338
VL  - 26
IS  - 1
PB  - Elsevier
CY  - Paris
ER  - 
TY  - CHAP
A1  - Gruber, W.
A1  - Braumann, K. M.
A1  - Kahlert, Daniela
A1  - Brand, Ralf
A1  - Schwarz, C.
A1  - Staab, D.
T1  - Do interavenous antibiotic therapies increase level of physical activity in CF?
T2  - Pediatric pulmonology
Y1  - 2011
SN  - 8755-6863
IS  - 3
SP  - 355
EP  - 355
PB  - Wiley-Blackwell
CY  - Malden
ER  - 
TY  - CHAP
A1  - Wang, Victor C.
A1  - Mayer, Frank
A1  - Dorenkamp, Marc
A1  - Bonaventura, Klaus
T1  - Three-dimensional global area tracking is a valuable quantitative parameter for left ventricular function in athletes
T2  - Medicine and science in sports and exercise : official journal of the American College of Sports Medicine
Y1  - 2012
SN  - 0195-9131
VL  - 44
SP  - 850
EP  - 850
PB  - Lippincott Williams & Wilkins
CY  - Philadelphia
ER  - 
TY  - CHAP
A1  - Richter, M.
A1  - Fairhall, Emma A.
A1  - Hoffmann, S. A.
A1  - Frühwald, J.
A1  - Wright, Matthew C.
A1  - Zeilinger, Katrin
T1  - Dexamethasone induced hepatic differentiation of rat pancreatic progenitor cells (B-13) in a 3D multicompartment bioreactor system
T2  - Journal of hepatology
Y1  - 2013
SN  - 0168-8278
VL  - 58
IS  - 1
SP  - S416
EP  - S416
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Lachmann, Sabrina C.
A1  - Spijkerman, Elly
A1  - Maberly, Stephen C.
T1  - Ecology matters: linking inorganic carbon acquisition to ecological preference in four species of microalgae (Chlorophyceae)
T2  - European journal of phycology
Y1  - 2015
SN  - 0967-0262
SN  - 1469-4433
VL  - 50
SP  - 98
EP  - 98
PB  - Routledge, Taylor & Francis Group
CY  - Abingdon
ER  -