000002641 001__ 2641
000002641 005__ 20160701171708.0
000002641 037__ $$aASTROimport-798
000002641 100__ $$aLobel, A.
000002641 245__ $$aThree Dimensional Radiative Transfer in Winds of Massive Stars: Wind3D
000002641 260__ $$c2006
000002641 520__ $$aWe discuss the development of the new radiative transfer code Wind3D. It solves the non-LTE radiative transport problem in moving stellar atmosphere models in three geometric dimensions. The code accepts arbitrary 3D velocity fields in Cartesian geometry without assumptions of axial symmetry. Wind3D is currently implemented as a fully parallelized (exact) accelerated lambda iteration scheme with a two level atom formulation. The numerical transfer scheme is efficient and sufficiently accurate to trace small variations of local velocity gradients on line opacity in strongly scattering dominated extended stellar winds. We investigate the detailed formation of P Cygni line profiles observed in ultraviolet spectra of massive stars. We compute the detailed shape of these resonance lines to model local enhancements of line opacity that can for instance be caused by clumping in supersonically expanding winds. Wind3D is applied to preliminary hydrodynamic disk models to investigate physical properties of discrete absorption line components. 
000002641 700__ $$a Blomme, R.
000002641 773__ $$c24$$pIAU Joint Discussion$$v4$$y2006
000002641 85642 $$ahttp://esoads.eso.org/abs/2006IAUJD...4E..24L
000002641 905__ $$apublished in
000002641 980__ $$aNONREF