G. Hensler - Academia.edu (original) (raw)

Uploads

Papers by G. Hensler

This monograph is the second issue of a three volume edition under the general title “Dark Energy... more This monograph is the second issue of a three volume edition under the general title “Dark Energy and Dark Matter in the Universe”. It concentrates mainly on astrophysical aspects of the dark matter and invisible mass problem including those of gravitational lensing, mass distribution, and chemical abundance in the Universe, physics of compact stars and models of the galactic evolution. The monograph is intended for science professionals, educators and graduate students, specializing in extragalactic astronomy, cosmology and general relativity.

arXiv (Cornell University), May 1, 2000

Arxiv preprint astro-ph/9807160, 1998

Arxiv preprint astro-ph/9806034, 1998

Astronomy & Astrophysics, 2006

The Astrophysical Journal Supplement Series, 2015

New Light on Galaxy Evolution, 1996

Astronomy & Astrophysics - ASTRON ASTROPHYS, 1984

The equations, boundary conditions, geometry, approximations, and numerical methods used in model... more The equations, boundary conditions, geometry, approximations, and numerical methods used in model studies of the physics of magnetic flux tubes in stellar convection zones and atmospheres are presented. The methods described are then used to study the smallest flux tubes in the solar atmosphere, i.e., the magnetic elements that are thought to be responsible for facular points and filigree. The models proposed here are dynamical and include flows; the material properties (e.g., opacity and heat capacity) are calculated self-consistently. Although many limitations remain, it is shown that a considerable contribution to the understanding of the physics of photospheric flux concentrations can be made even at this level of sophistication. In addition, models of stationary magnetic flux elements are presented which are considered to constitute the basic structure of the solar photospheric magnetic field.