Galaxy Distances and Deviations from Universal Expansion

ISBN-13: 9789027722775 / Angielski / Twarda / 1986 / 302 str.

Barry F. Madore; R. Brent Tully; B. Madore

Opis

It was a general feeling among those who attended the NATO / ARW meeting on the Galaxy Distances and Deviations from Universal Expansion, that during the week in Hawaii a milestone had been passed in work on the distance scale. While not until the last minute did most of the participants know who else would be attending, no one was displeased with the showing. As it turned out, scarcely a single active worker in the field of the distance scale missed the event. Few knew all of the outstanding work that was to be revealed, and/or the long-term programs that were to be encapsulated in the first few days. Areas of general agreement were pinpointed with candid speed, and most of the discussion moved on quickly to new data, and areas deserving special new attention. As quickly as one project was reported as being brought successfully to a close, a different group would report on new discoveries with new directions to go. New data, new phenomena; but the sentiment was that we were building on a much safer foundation, even if the Universe was unfolding in a much more complex and unexpected way than was previously anticipated. In editing these proceedings a decision was made well in advance of the Meet ing that no attempt would made to record the discussion. This was done for many reasons."

Spis treści

New Results on the Distance Scale and the Hubble Constant.- The Magellanic Clouds and the Ditance Scale.- Main Sequence Fitting and the Distance to the Large Magellanic Cloud.- Recent CCD Observations of Cepheids in Nearby Galaxies: A Progress Report.- Distances Using A Supergiant Stars.- An Infrared Calibration of the Cepheid Distance Scale.- RR Lyrae Stars in the Halo of M31 — A Preliminary Report.- Two Stepping Stones to the Hubble Constant.- Physical Models of Supernovae and the Distance Scale.- Calibration of the Infrared Tully-Fisher Relation and the Global Value of the Hubble Constant.- Distances from HI Observations of Nearby Groups and Clusters.- 21cm Line Widths and Distances of Spiral Galaxies.- Malmquist Bias and Virgocentric Model in Tully-Fisher Relation.- The Luminosity Index as a Distance Indicator and the Structure of the Virgo Cluster.- Infrared Colour-Luminosity Relations for Field Galaxies.- Minimizing the Scatter in the Tully-Fisher Relation.- I versus (B-I) Color-Magnitude Relation for Galaxies and I-Band Distances.- Photometry of Galaxies and the Local Peculiar Motion.- The Motion of the Sun and the Local Group and the Velocity Dispersion of “Field” Galaxies.- The Motion of the Local Group relative to the Nearest Clusters of Galaxies.- Distances and Motions of 2000 Galaxies in the Pisces-Perseus Supercluster.- Elliptical Galaxies and Non-Uniformities in the Hubble Flow.- Large-Scale Anisotropy in the Hubble Flow.- An Improved Distance Indicator for Elliptical Galaxies.- A Quadrupolar Component in the Velocity Field of the Local Supercluster.- Is the Criticism of the Virgocentric Flow Model Justified?.- Anisotropy of the Galaxies Detected by IRAS.- The Local Gravitational Field.- Mass Segregation, HI Deficiency and Dwarf Irregular Galaxies in the Virgo Cluster.- Effects of Mass Segregation in Rotating Clusters of Galaxies.- Measurements of the Cosmic Background Radiation.- On the Measure of Cosmological Times.- Ages from Nuclear Cosmochronology.- Constraints on the Ages of Distant Giant Elliptical Radio Galaxies.- Extragalactic Gas at High Redshift: A Chronograph of Nonlinear Departures from Hubble Flow.- MicrowaVe and X-ray Constraints on Local Large-Scale Overdensities.- Supercluster Infall Models.- Virgo Infall and the Mass Density of the Universe.- A Determination of ? from the Dynamics of the Local Supercluster.- The Dynamics of Superclusters and ?0.- The Distribution of Galaxies versus Dark Matter.- Peculiar Velocities and Galaxy Formation.- Large Scale Structure in Universes Dominated by Cold Dark Matter.- Dark Matter, Cosmic Strings, and Large Scale Structure.- Clustering in Real Space vs. Redshift Space.- Cosmological Shells and Blast Waves.- More on Structure Involving 1018M?.- Galaxy Distances and Deviations from the Hubble Flow; Summary Remarks.- Galaxy Surface Brightness and Clustering: A Test for Biased Galaxy Formation Scenarios?.