|
Showing 1 - 4 of
4 matches in All Departments
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."
The idea of holding a colloquium on Schmidt telescopes (techniques
and science) originated from the observation that, in the last ten
years and in spite of the remarkable developments and achievements
in this field of astronomical research, there had been no specific
opportunity for the experts to meet together, make the point on the
state of the art, discuss and coordinate future plans. Therefore,
Prof. L. Rosino, one of the pioneers in the use of wide-field
telescopes, driven also by the wish of honouring the over four
decades of activity of the Asiago Observatory, proposed to the
Executive Committee of the International Astronomical Union to
sponsor a colloquium on 'Astronomy with Schmidt type telescopes I
to be held at Asiago at the end of the summer of 1983. Details
about the composition of the Scientific Organizing Committee and
the sponsoring organizations are given in Prof. Rosino's 'Welcome
to the Participants * The granting of this proposal was the
beginning of a ' number of headaches tor the members of the Local
Organizing Committee, R. Barbon, F. Ciatti, P. Rafanelli and
myself. If, organlzationwise, the colloquium was successful, this
is truly due to the generous efforts of my colleagues of the SOC
and to the efficient organization of the Linta Park, the hotel
hosting the meeting.
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."
|
You may like...
The God of Life
Gustavo Gutierrez
Paperback
R731
R601
Discovery Miles 6 010
|