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Chapter and Conference Paper
SSSs as progenitors of the BHCs
In contrast to white dwarfs, neutron stars with near companions can get surrounded by massive accretion disks when their donor stars transfer matter at a greater-than-Eddington rate for sufficiently long. When...
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Chapter and Conference Paper
Magnetic Field and Differential Rotation of the Sun
The solar magnetized surface reveals a stable spin period - the Carrington period and a stable oscillation period - the Hale period. The latter is traced by each of the low-order multipole moments, whereby the...
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Chapter and Conference Paper
SS 433 — The Preferred Model
The model for SS 433 which I prefer since the summer of 1979 to all the other proposed models has just been updated (Kundt, 1991). I can therefore be brief. It differs from the standard model in distance (d = 3 k...
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Chapter and Conference Paper
The Bipolar-Flow Phenomenon
Very young stars, known as ‘pre-T-Tauri stars’ or ‘young stellar objects’, tend to be surrounded by elongated outflow regions involving ‘Herbig-Haro objects’. Such ‘bipolar flows’ are reminiscent of the jet-dr...
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Article
Buchbesprechungen
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Article
Magnetic tensions can control the dynamics of accretion disks
Magnetic tensions are likely to be the dominant shear force in accretion disks, larger when integrated than turbulent viscosity by an order of magnitude or more. In galactic disks, they guarantee the mass-accr...
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Article
Re-analysis of close binary systems
Line-forming regions around close binaries with strong winds ( \(\dot M\) /4πr * v ∞≳10−4 g cm−2) are large in extent...
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Chapter
Observed Neutron-Star Properties
The Galaxy contains at least 109 ± 1 neutron stars which are thought to be born in supernova explosions of massive stars, and which we observe as radio pulsars if isolated and as X-ray binaries if attached to a c...
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Chapter and Conference Paper
Supernova structure and light curves
It is concluded from simple assumptions that:
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The SN piston has a relativistic sound speed; a likely realisation of the piston is a mag...
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Chapter and Conference Paper
Interpretation of Supernova Shells
Our knowledge about Supernova Shells (SNSs) is steadily increasing concerning their number, morphologies and spectra. But there is no general agreement on how to model them. Here I want to comment on their vel...
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Chapter and Conference Paper
Epilogue
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Article
Buchbesprechungen
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Chapter and Conference Paper
Magnetic Fields in Supernovae and Supernova Shells
There are indications that supernova explosions are driven by magnetic springs, i.e. that the spin energy of the collapsing core is transferred to the envelope via magnetic stresses which subsequently convert ...
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Chapter
The Central Engine
The literature of the past 10 years has favoured black holes over non-collapsed (super-)massive objects as the central engines of AGN behaviour. But bipolar flows and jets from compact stars are similar and dr...
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Chapter
The Sources and Their Models
The similarities are stressed between the different astrophysical jet sources, or Bipolar Flows, which apparently make up four classes: Active Galactic Nuclei (=AGN), Young Stellar Objects (=YSO), Binary Neutr...
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Chapter
The Jets
Jets may simply be the outlets of overpressure bubbles filled with relativistic pair plasma. They ram channels through media of various densities but can be destroyed by neutral intruders, such as photons and ...
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Article
Book review
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Article
Astrophysics and underground physics
High-energy astrophysics is critically discussed, covering supernova explosions, single and binary neutron stars and active galactic nuclei as well as some acceleration mechanisms like homopolar induction (in ...
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Chapter
Cosmic Ray Acceleration by Binary Neutron Stars
Young binary neutron stars — the elder brothers of pulsars — are proposed as the boosters of the ionic component of cosmic rays. Their rotational energy can be converted into beams of cosmic rays if there is e...
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Article
Astrophysical boosters
Constraints are derived on the acceleration of charges in shocks to highly relativistic energies. When applied to the extended extragalactic radio sources and to the cosmic rays, they cast doubt on the mechani...
