Filtern
Volltext vorhanden
- ja (1464) (entfernen)
Erscheinungsjahr
Dokumenttyp
- Wissenschaftlicher Artikel (558)
- Preprint (299)
- Postprint (257)
- Konferenzveröffentlichung (160)
- Arbeitspapier (48)
- Dissertation (47)
- Rezension (26)
- Monographie/Sammelband (25)
- Teil eines Buches (Kapitel) (24)
- Sonstiges (16)
Sprache
- Englisch (1464) (entfernen)
Gehört zur Bibliographie
- nein (1464) (entfernen)
Schlagworte
- Curriculum Framework (31)
- European values education (31)
- Europäische Werteerziehung (31)
- Familie (31)
- Family (31)
- Lehrevaluation (31)
- Studierendenaustausch (31)
- Unterrichtseinheiten (31)
- curriculum framework (31)
- lesson evaluation (31)
Institut
- Institut für Mathematik (309)
- Extern (256)
- Institut für Physik und Astronomie (119)
- Vereinigung für Jüdische Studien e. V. (105)
- Department Linguistik (91)
- Department Psychologie (85)
- Institut für Chemie (65)
- Hasso-Plattner-Institut für Digital Engineering GmbH (55)
- Institut für Umweltwissenschaften und Geographie (48)
- Institut für Informatik und Computational Science (46)
"Unavoidably side by side"
(2011)
.NET Gadgeteer Workshop
(2013)
We present results of full 3D hydrodynamical and radiative transfer simulations of the colliding stellar winds in the massive binary system η Carinae. We accomplish this by applying the SimpleX algorithm for 3D radiative transfer on an unstructured Voronoi-Delaunay grid to recent 3D smoothed particle hydrodynamics (SPH) simulations of the binary colliding winds. We use SimpleX to obtain detailed ionization fractions of hydrogen and helium, in 3D, at the resolution of the original SPH simulations. We investigate several computational domain sizes and Luminous Blue Variable primary star mass-loss rates. We furthermore present new methods of visualizing and interacting with output from complex 3D numerical simulations, including 3D interactive graphics and 3D printing. While we initially focus on η Car, the methods employed can be applied to numerous other colliding wind (WR 140, WR 137, WR 19) and dusty `pinwheel' (WR 104, WR 98a) binary systems. Coupled with 3D hydrodynamical simulations, SimpleX simulations have the potential to help determine the regions where various observed time-variable emission and absorption lines form in these unique objects.
Massive stars usually form groups such as OB associations. Their fast stellar winds sweep up collectively the surrounding insterstellar medium (ISM) to generate superbubbles. Observations suggest that superbubble evolution on the surrounding ISM can be very irregular. Numerical simulations considering these conditions could help to understand the evolution of these superbubbles and to clarify the dynamics of these objects as well as the difference between observed X-ray luminosities and the predicted ones by the standard model (Weaver et al. 1977).
We present 3D numerical simulations of the NGC6888 nebula considering the proper motion and the evolution of the star, from the red supergiant (RSG) to the Wolf-Rayet (WR) phase. Our simulations reproduce the limb-brightened morphology observed in [OIII] and X-ray emission maps. The synthetic maps computed by the numerical simulations show filamentary and clumpy structures produced by instabilities triggered in the interaction between the WR wind and the RSG shell.
The main objective of this work is to investigate the evolution of massive stars, and the interplay between them and the ionized gas for a sample of local metal-poor Wolf-Rayet galaxies.
Optical integral field spectrocopy was used in combination with multi-wavelength radio data.
Combining optical and radio data, we locate Wolf-Rayet stars and supernova remnants across the Wolf-Rayet galaxies to study the spatial correlation between them. This study will shed light on the massive star formation and its feedback, and will help us to better understand
distant star-forming galaxies.