57 citations · 425 across the 15 of their papers we have counts for
15 papers
Hot bubbles of planetary nebulae with hydrogen-deficient winds. III. Formation and evolution in comparison with hydrogen-rich bubbles
D. Schönberner, M. Steffen
We seek to understand the evolution of Wolf-Rayet central stars by comparing the diffuse X-ray emission from their wind-blown bubbles with that from their hydrogen-rich counterpart…
Confronting expansion distances of planetary nebulae with Gaia DR2 measurements
D. Schönberner, M. Steffen
Individual distances to planetary nebulae are of the utmost relevance for our understanding of post-asymptotic giant-branch evolution because they allow a precise determination of…
Hot bubbles of planetary nebulae with hydrogen-deficient winds I. Heat conduction in a chemically stratified plasma
Christer Sandin, Matthias Steffen, Detlef Schönberner +1
Heat conduction has been found a plausible solution to explain discrepancies between expected and measured temperatures in hot bubbles of planetary nebulae (PNe). While the heat co…
Weak magnetic fields in central stars of planetary nebulae?
M. Steffen, S. Hubrig, H. Todt +4
It is not yet clear whether magnetic fields play an essential role in shaping planetary nebulae (PNe), or whether stellar rotation alone and/or a close binary companion can account…
A hydrodynamical study of multiple-shell planetary nebulae. III. Expansion properties and internal kinematics: Theory versus observation
D. Schoenberner, R. Jacob, H. Lehmann +5
We present the result of a study on the expansion properties and internal kinematics of round/elliptical planetary nebulae of the Milky Way disk, the halo, and of the globular clus…
The evolution of planetary nebulae. VIII. True expansion rates and visibility times
R. Jacob, D. Schoenberner, M. Steffen
The visibility time of planetary nebulae (PNe) in stellar systems is an essential quantity for estimating the size of a PN population in the context of general population studies.…