Morpho-Kinematic modeling of planetary nebulae (2006)
Wolfgang Steffen, José Alberto López
Morpho-Kinematic modeling of planetary nebulae
Morpho-kinematic modelling of gaseous nebulae with Shape (2006)
Wolfgang Steffen, Hortensia Riesgo, José Alberto López
Morpho-kinematic modelling of gaseous nebulae with Shape
Relation between Source and Temperature Fluctuations in Photoionized Nebulae (2006)
A. C. Raga, Wolfgang Steffen, Luc Binette, P. Ferruit
Relation between Source and Temperature Fluctuations in Photoionized Nebulae
3D Simulations of the Fragmentation of Photoevaporating Clumps Embedded in a Stellar Wind (2006)
A. C. Raga, R. F. González, Wolfgang Steffen
3D Simulations of the Fragmentation of Photoevaporating Clumps Embedded in a Stellar Wind
Morpho-Kinematic Modeling of Gaseous Nebulae with SHAPE (2006)
Morpho-Kinematic Modeling of Gaseous Nebulae with SHAPE
Numerical simulations of the fragmentation of photoevaporating nonuniform clumps (2006)
A. C. Raga, R. F. González, Wolfgang Steffen
Numerical simulations of the fragmentation of photoevaporating nonuniform clumps
Morpho-kinematic modeling of gaseous nebulae with SHAPE (2006)
Steffen, Wolfgang, Lopez, Jose Alberto
We present a powerful new tool to analyse and disentangle the 3-D geometry and kinematic structure of gaseous nebulae. The method consists in combining commercially available digital animation...
Morpho-Kinematic modeling of planetary nebulae (2006)
López, José Alberto, Steffen, Wolfgang
Presentamos una nueva herramienta para desenredar la geometráa 3-D y la estructura cinemática de nebulosas gaseosas. El método consiste en combinar software comercial para animación digital para...
Morpho-Kinematic Modeling of Gaseous Nebulae with SHAPE (2006)
López , J. A., Steffen , Wolfgang
We present a powerful new tool to analyse and disentangle the 3-D geometry and kinematic structure of gaseous nebulae. The method consists in combining commercially available digital animation...
Morpho-kinematic modelling of gaseous nebulae with Shape (2005)
López , José Alberto, Riesgo , Hortensia, Steffen , Wolfgang
3D Simulations of the Fragmentation of Photoevaporating Clumps Embedded in a Stellar Wind (2005)
González , R. F., Raga , A. C., Steffen , Wolfgang
We present 3D numerical simulations of the interaction of a dense, neutral clump with an impinging external wind+ionizing photon field. We find that models with very weak ionizing photon fields...
Numerical simulations of the fragmentation of photoevaporating nonuniform clumps (2005)
González , R. F., Raga , A. C., Steffen , Wolfgang
In this paper, we present 3D gasdynamical simulations of the interaction of nonuniform clumps with an external (plane-parallel) ionizing photon ux. We show that, as a consequence of the initial...
Relation between source and temperature fluctuations in photoionized nebulae (2003)
Binette, Luc, Ferruit, Pierre, Steffen, Wolfgang, Raga, Alejandro
The magnitude of the temperature fluctuations (t^2) required to explain the observed inconsistencies between metallicities inferred from recombination lines and from forbidden lines cannot be...
Relation between Source and Temperature Fluctuations in Photoionized Nebulae (2003)
Binette , Luc, Ferruit , P., Raga , A. C., Steffen , Wolfgang
The magnitude of the temperature fluctuations (t2) required to explain the observed inconsistencies between metallicities inferred from recombination lines and from forbidden lines cannot be attained...
Photo-evaporation of clumps in Planetary Nebulae (1997)
Mellema, Garrelt, Raga, Alejandro C., Canto, Jorge, Lundqvist, Peter, Balick, Bruce, Steffen, Wolfgang, ...
We study the evolution of dense neutral clumps located in the outer parts of planetary nebulae. These clumps will be photo-ionized by the ionizing radiation from the central star and change their...
IRAS 0421+0400: Jets crossing an ISM/IGM interface? (1996)
Steffen, Wolfgang, Holloway, Anthony, Pedlar, Alan, Axon, David
"Energy Transport in Radio Galaxies and Quasars", Proceedings of a workshop part of the Astronomical Society of the Pacific Conference Series. Astronomical Society of the Pacific. Held in Tuscaloosa,...
Holloway, Anthony, Steffen, Wolfgang, Pedlar, Alan, Axon, David, Dyson, John, Meaburn, John, ...
Also archived in: arXiv:astro-ph/9510001 v1 2 Oct 1995
Helikale Strukturen in aktiven Galaxienkernen [microform] / (1994)
Thesis (doctoral)--Rheinische Friedrich-Wilhelms-Universität in Bonn, 1994.
Helikale Strukturen in aktiven Galaxienkernen / (1994)
Bonn, Universiẗat, Diss., 1994 (Nicht für den Austausch).
Hämodynamik nach sublingualer Applikation von Captopril bei schwerer Herzinsuffizienz. (1991)
Mikroreprod. eines Ms. Getr. Zählung : graph. Darst.
Münster (Westfalen), Univ., Diss., 1988 (Nur als Mikrofiche f.d. Austausch).
Thesis (doctoral)--Westfälische Wilhelms-Universität Münster, 1988.
Giessen, Univ., Diss., 1984.
Wolfgang Steffen, Johannes Stephan
This paper assess determinants of productivity gaps between firms in the European transition countries and regions and firms in West Germany. The analysis is conducted at the firm level by use of a...
Wolfgang Steffen, Johannes Stephan
This paper assesses the determinants of productivity gaps between firms in the European transition countries and regions and firms in West Germany. The analysis is conducted at the firm level using a...