Werner Zeilinger | University of Vienna (original) (raw)
Astrophysicist at the Department of Astrophysics at the University of Vienna
Address: Vienna, Wien, Austria
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Papers by Werner Zeilinger
Elliptical galaxies with dust lanes (Bertola and Galletta, 1978) are interpreted as the result of... more Elliptical galaxies with dust lanes (Bertola and Galletta, 1978) are interpreted as the result of the acquisition of gaseous and dusty material. This material forms a disk by settling into the symmetry plane of the elliptical galaxy, if oblate or prolate (Tubbs, 1980; Simonson, 1982) or into one of the two permitted planes (defined by the major and intermediate axis and by the minor and intermediate axis) if the galaxy is triaxial and not tumbling (Steiman-Cameron, 1984). An inspection of the structure of the dust lanes in the ellipticals of the selected list published by Bertola (1987) indicates that we are looking at these disks almost edge-on, at an angle not exceeding 10°. This situation is the most favourable one for detecting the dust lane, since the region absorbed divides the galaxy into two parts which are absorption free. As soon as the viewing angle increases the contrast diminishes and the effect of the dust becomes less appreciable. In this case the best way to detect t...
Monthly Notices of the Royal Astronomical Society, 1993
The Messenger, Nov 29, 1991
Astrophys Space Sci, 2003
Monthly Notices of the Royal Astronomical Society, Aug 30, 1990
Dynamics and Interactions of Galaxies, 1990
An interesting case of interaction between the disk galaxy AM 2208-251 and a compact elliptical-l... more An interesting case of interaction between the disk galaxy AM 2208-251 and a compact elliptical-like object has been investigated. AM 2208-251 is classified as SO (Corwin et al. 1985) and possesses a pronounced dust lane along its major axis. On the ESO/SRC J survey plate there is evidence of a bridge extending from AM 2208-251 towards the compact object. The companion lies on the Eastern side of the galaxy, exactly in the direction defined by the major axis of AM 2208-251. A contourplot of the digitized ESO/SRC J plate is presented in the composite of Fig. 1.
Astrophysics and Space Science Proceedings, 2011
ABSTRACT Numerical simulations as well as optical and X-ray observations have shown that poor gro... more ABSTRACT Numerical simulations as well as optical and X-ray observations have shown that poor groups of galaxies can evolve to what is called a fossil group. Dynamical friction as the driving process leads to the coalescence of individual galaxies in ordinary poor groups, leaving behind nothing more than a central, massive elliptical galaxy supposed to contain the merger history of the whole group. Due to longer merging timescales for less-massive galaxies, a surrounding faint-galaxy population and an extended X-ray halo similar to that found in ordinary poor groups, is expected. Multi-object spectroscopy with VIMOS has been performed to study the faint galaxy population of the fossil candidate RX J1548.9 + 0851.
The Messenger, Jun 1, 1991
ESO ASTROPHYSICS SYMPOSIA
ABSTRACT
ESO ASTROPHYSICS SYMPOSIA
ABSTRACT
Astronomy and Astrophysics
ABSTRACT
Astronomy and Astrophysics
ABSTRACT
Elliptical galaxies with dust lanes (Bertola and Galletta, 1978) are interpreted as the result of... more Elliptical galaxies with dust lanes (Bertola and Galletta, 1978) are interpreted as the result of the acquisition of gaseous and dusty material. This material forms a disk by settling into the symmetry plane of the elliptical galaxy, if oblate or prolate (Tubbs, 1980; Simonson, 1982) or into one of the two permitted planes (defined by the major and intermediate axis and by the minor and intermediate axis) if the galaxy is triaxial and not tumbling (Steiman-Cameron, 1984). An inspection of the structure of the dust lanes in the ellipticals of the selected list published by Bertola (1987) indicates that we are looking at these disks almost edge-on, at an angle not exceeding 10°. This situation is the most favourable one for detecting the dust lane, since the region absorbed divides the galaxy into two parts which are absorption free. As soon as the viewing angle increases the contrast diminishes and the effect of the dust becomes less appreciable. In this case the best way to detect t...
Monthly Notices of the Royal Astronomical Society, 1993
The Messenger, Nov 29, 1991
Astrophys Space Sci, 2003
Monthly Notices of the Royal Astronomical Society, Aug 30, 1990
Dynamics and Interactions of Galaxies, 1990
An interesting case of interaction between the disk galaxy AM 2208-251 and a compact elliptical-l... more An interesting case of interaction between the disk galaxy AM 2208-251 and a compact elliptical-like object has been investigated. AM 2208-251 is classified as SO (Corwin et al. 1985) and possesses a pronounced dust lane along its major axis. On the ESO/SRC J survey plate there is evidence of a bridge extending from AM 2208-251 towards the compact object. The companion lies on the Eastern side of the galaxy, exactly in the direction defined by the major axis of AM 2208-251. A contourplot of the digitized ESO/SRC J plate is presented in the composite of Fig. 1.
Astrophysics and Space Science Proceedings, 2011
ABSTRACT Numerical simulations as well as optical and X-ray observations have shown that poor gro... more ABSTRACT Numerical simulations as well as optical and X-ray observations have shown that poor groups of galaxies can evolve to what is called a fossil group. Dynamical friction as the driving process leads to the coalescence of individual galaxies in ordinary poor groups, leaving behind nothing more than a central, massive elliptical galaxy supposed to contain the merger history of the whole group. Due to longer merging timescales for less-massive galaxies, a surrounding faint-galaxy population and an extended X-ray halo similar to that found in ordinary poor groups, is expected. Multi-object spectroscopy with VIMOS has been performed to study the faint galaxy population of the fossil candidate RX J1548.9 + 0851.
The Messenger, Jun 1, 1991
ESO ASTROPHYSICS SYMPOSIA
ABSTRACT
ESO ASTROPHYSICS SYMPOSIA
ABSTRACT
Astronomy and Astrophysics
ABSTRACT
Astronomy and Astrophysics
ABSTRACT