Search results for: structure-and-dynamics-of-elliptical-galaxies

Structure and Dynamics of Elliptical Galaxies

Author : P. T. de Zeeuw
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Structure and Dynamics of Elliptical Galaxies

Author : Tim de Zeeuw
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IAU Symposium 127 was held in Princeton on May 28-31, 1986, at the Institute for Advanced Study. There were 150 participants from 19 countries. This was the first IAU Symposium devoted exclusively to elliptical galaxies. The last decade has been a period of exceptionally rapid progress regard ing our understanding of elliptical galaxies, driven on the observational side by a wealth of new photometric and spectroscopic data, and on the theoretical side by the recognition that ellipticals are slowly rotating triaxial systems, instead of rotationally flattened bodies. The 30 invited speakers reviewed all aspects of this progress, its consequences, and the major outstanding problems. Nearly 80 poster contributions were displayed for the duration of the meeting. These contained many of the most recent developments. The first part of these Proceedings contains the written versions of the invited reviews and the summary, in the order of their presentation. The accompanying discussions are based on the written versions of questions and answers as handed in by the participants. The second part of this book is devoted to the poster contribu tions. They have been grouped in a thematic order, proceeding from morphology to theory. Indices of objects, subjects, and names are provided. Unfortunately, none of the invited participants from the USSR were able to attend the Symposium. The Proceedings include the written versions of the planned contributions by Popov and Polyachenko.

Structure and dynamics of elliptical galaxies

Author : Pieter Timotheus de Zeeuw
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Structure and Dynamics of Elliptical Galaxies

Author : Tim de Zeeuw
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IAU Symposium 127 was held in Princeton on May 28-31, 1986, at the Institute for Advanced Study. There were 150 participants from 19 countries. This was the first IAU Symposium devoted exclusively to elliptical galaxies. The last decade has been a period of exceptionally rapid progress regard ing our understanding of elliptical galaxies, driven on the observational side by a wealth of new photometric and spectroscopic data, and on the theoretical side by the recognition that ellipticals are slowly rotating triaxial systems, instead of rotationally flattened bodies. The 30 invited speakers reviewed all aspects of this progress, its consequences, and the major outstanding problems. Nearly 80 poster contributions were displayed for the duration of the meeting. These contained many of the most recent developments. The first part of these Proceedings contains the written versions of the invited reviews and the summary, in the order of their presentation. The accompanying discussions are based on the written versions of questions and answers as handed in by the participants. The second part of this book is devoted to the poster contribu tions. They have been grouped in a thematic order, proceeding from morphology to theory. Indices of objects, subjects, and names are provided. Unfortunately, none of the invited participants from the USSR were able to attend the Symposium. The Proceedings include the written versions of the planned contributions by Popov and Polyachenko.

Structure and Dynamics of Elliptical Galaxies

Author : International Astronomical Union. Symposium
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Structure and Dynamics of Elliptical Galaxies

Author : Tim De Zeeuw
File Size : 65.10 MB
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Structure and Dynamics of Elliptical Galaxies

Author : Pieter Timotheus de Zeeuw
File Size : 47.54 MB
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IAU Symposium 127 was held in Princeton on May 28-31, 1986, at the Institute for Advanced Study. There were 150 participants from 19 countries. This was the first IAU Symposium devoted exclusively to elliptical galaxies. The last decade has been a period of exceptionally rapid progress regard ing our understanding of elliptical galaxies, driven on the observational side by a wealth of new photometric and spectroscopic data, and on the theoretical side by the recognition that ellipticals are slowly rotating triaxial systems, instead of rotationally flattened bodies. The 30 invited speakers reviewed all aspects of this progress, its consequences, and the major outstanding problems. Nearly 80 poster contributions were displayed for the duration of the meeting. These contained many of the most recent developments. The first part of these Proceedings contains the written versions of the invited reviews and the summary, in the order of their presentation. The accompanying discussions are based on the written versions of questions and answers as handed in by the participants. The second part of this book is devoted to the poster contribu tions. They have been grouped in a thematic order, proceeding from morphology to theory. Indices of objects, subjects, and names are provided. Unfortunately, none of the invited participants from the USSR were able to attend the Symposium. The Proceedings include the written versions of the planned contributions by Popov and Polyachenko.

Elliptical Galaxies

Author : Alister William McKenzie Graham
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International Astronomical Union Symposium No 127 on Structure and Dynamics of Elliptical Galaxies Princeton 27 31 May 1986

Author : Tim De Zeeeuw
File Size : 67.75 MB
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Structure Dynamics and Chemical Evolution of Elliptical Galaxies

Author : John Danziger
File Size : 62.78 MB
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Structure of Elliptical Galaxies

Author : Marcella Carollo (Astrophysikerin.)
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Internal Dynamics Structure and Formation of Dwarf Elliptical Galaxies

Author : Marla Geha
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Dynamics of Galaxies

Author : Giuseppe Bertin
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A complete and self-contained introduction to modern galactic dynamics for graduate students.

Structure and Dynamics of Interacting Galaxies

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According to the ``merger hypothesis'', elliptical galaxies form by mergers of spiral galaxies. To test this hypothesis, simulations of collisionless mergers between disk galaxies with different mass ratios and orbital geometries were performed. Every merger remnant was investigated with respect to its photometric and kinematic properties. The methods used to determine the characteristic properties were developed to resemble the methods used by observational astronomers. Therefore a self-consistent comparison between simulated data and observations was possible. 1:1 merger remnants are triaxial, rotate slowly, are supported by anisotropic velocity dispersions, have significant minor-axis rotation and show predominantly boxy iosphotes in good agreement with observations of bright, boxy, giant elliptical galaxies. 3:1 and 4:1 remnants are oblate isoptropic, fast rotators, show a small amount of minor-axis rotation and have disky isophotes in perfect agreement with observations of faint, disky, giant elliptical galaxies. 2:1 remnants show intermediate properties. Projection effects lead to a large spread in the data in good agreement with observations. They do not change the fundamental differences between 1:1 and 3:1 merger remnants. The effect of the merger geometry on the properties of the remnants is discussed. The shape of the LOSVD of the simulated remnants does in general not agree with observations. An additional stellar disk component with 15 of the total stellar mass and a scale length of the order of the effective radius, artificially added to the merger remnants, can solve this problem. The results lead to the conclusion that collisionless merging of disk galaxies cannot explain the formation of observed elliptical galaxies. The progenitor galaxies must have contained a significant amount of gas.

Morphological and Physical Classification of Galaxies

Author : G. Longo
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The morphological scheme devised by Hubble and followers to classify galaxies has proven over many decades to be quite effective in directing our quest for the fundamental pa rameters describing the extragalactic manifold. This statement is however far more true for spirals than for ellipticals. Echoing the concluding remarks in Scott Tremaine's sum mary talk at the Princeton meeting on Structure and Dynamics of Elliptical Galaxies, "the Hubble classification of spirals is useful because many properties of spirals (gas con tent, spiral arm morphology, bulge prominence, etc. ) all correlate with Hubble time. By contrast, almost nothing correlates with the elliptical Hubble sequence El to E7. " During the last few years much effort has been put into the search for a more meaningful classification of ellipticals than Hubble's. Concomitantly, forwarded by some provocative conjectures by R. Michard, the classical question of whether E galaxies form a physically homogeneous family has been brushed up once more. Results of these and other parallel studies look rather promising and point to suture part of the dichotomy between ellipticals and disk galaxies which had become popular in the early eighties, owing to dynamical arguments. At the same time it appears more and more clear that, besides the usual genetic varieties of galaxies, products of environmental evolution must also be contemplated in building our modern picture of the "reign of galaxies" . The above considerations prompted us to solicit Prof.

Structure Dynamics and Chemical Evolution of Elliptical Galaxies

Author : I. J. Danziger
File Size : 39.24 MB
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Island Universes

Author : R. S. de Jong
File Size : 31.40 MB
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This book contains an up-to-date review of the structure and evolution of disk galaxies from both the observational and theoretical point of view. It is the proceedings of the "Island Universes" conference held at the island of Terschelling in July 2005. It brings together a broad range of aspects of disk galaxies: structure and dynamics, the latest multi-wavelength surveys, low- and high redshift observations, theory and observations.

Morphological and Physical Classification of Galaxies

Author : G. Longo
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The morphological scheme devised by Hubble and followers to classify galaxies has proven over many decades to be quite effective in directing our quest for the fundamental pa rameters describing the extragalactic manifold. This statement is however far more true for spirals than for ellipticals. Echoing the concluding remarks in Scott Tremaine's sum mary talk at the Princeton meeting on Structure and Dynamics of Elliptical Galaxies, "the Hubble classification of spirals is useful because many properties of spirals (gas con tent, spiral arm morphology, bulge prominence, etc. ) all correlate with Hubble time. By contrast, almost nothing correlates with the elliptical Hubble sequence El to E7. " During the last few years much effort has been put into the search for a more meaningful classification of ellipticals than Hubble's. Concomitantly, forwarded by some provocative conjectures by R. Michard, the classical question of whether E galaxies form a physically homogeneous family has been brushed up once more. Results of these and other parallel studies look rather promising and point to suture part of the dichotomy between ellipticals and disk galaxies which had become popular in the early eighties, owing to dynamical arguments. At the same time it appears more and more clear that, besides the usual genetic varieties of galaxies, products of environmental evolution must also be contemplated in building our modern picture of the "reign of galaxies" . The above considerations prompted us to solicit Prof.

Galactic Dynamics

Author : James Binney
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Since it was first published in 1987, Galactic Dynamics has become the most widely used advanced textbook on the structure and dynamics of galaxies and one of the most cited references in astrophysics. Now, in this extensively revised and updated edition, James Binney and Scott Tremaine describe the dramatic recent advances in this subject, making Galactic Dynamics the most authoritative introduction to galactic astrophysics available to advanced undergraduate students, graduate students, and researchers. Every part of the book has been thoroughly overhauled, and many sections have been completely rewritten. Many new topics are covered, including N-body simulation methods, black holes in stellar systems, linear stability and response theory, and galaxy formation in the cosmological context. Binney and Tremaine, two of the world's leading astrophysicists, use the tools of theoretical physics to describe how galaxies and other stellar systems work, succinctly and lucidly explaining theoretical principles and their applications to observational phenomena. They provide readers with an understanding of stellar dynamics at the level needed to reach the frontiers of the subject. This new edition of the classic text is the definitive introduction to the field. ? A complete revision and update of one of the most cited references in astrophysics Provides a comprehensive description of the dynamical structure and evolution of galaxies and other stellar systems Serves as both a graduate textbook and a resource for researchers Includes 20 color illustrations, 205 figures, and more than 200 problems Covers the gravitational N-body problem, hierarchical galaxy formation, galaxy mergers, dark matter, spiral structure, numerical simulations, orbits and chaos, equilibrium and stability of stellar systems, evolution of binary stars and star clusters, and much more Companion volume to Galactic Astronomy, the definitive book on the phenomenology of galaxies and star clusters

Astronomy and Astrophysics Monthly Index

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