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Author : Christian Maier
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (534 download)
Download or read book Emission Line Galaxies from CADIS written by Christian Maier and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Emission Line Galaxies from CADIS written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: And with model predictions, indicates that bright Ly-alpha galaxies are so rare beyond z=5 that a non-evolving population can be excluded.
Author : Christian Maier
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (638 download)
Download or read book The Metallicity-luminosity Ralation at Medium Redshift Based on Faint CADIS Emission Line Galaxies written by Christian Maier and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jacqueline Bergeron
Publisher : Springer Science & Business Media
ISBN 13 : 3540497099
Total Pages : 448 pages
Book Rating : 4.5/5 (44 download)
Download or read book The Early Universe with the VLT written by Jacqueline Bergeron and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second ESO workshop in aseries dedicated to science oppor tunities with the VLT. At the first workshop all areas of astronomical research were discussed. This second workshop is dedicated to research projects on the early Universe and has provided a forum for discussing strategies for studying faint distant objects in the optical and infrared spectral regions. This field is evolving very rapidly. There are several new surveys of galax ies and clusters of galaxies at intermediate redshift and quasars at very high redshift. Major advances in the morphological studies of distant galaxies, surveys of galaxies at high redshift and searches for primeval galaxies have been rendered possible by the new facilities provided by the Rubble Space Telescope and the Keck Telescope. Observational constraints on the evolution and formation of galaxies and large-scale structures as well as the cosmic chemical evolution were criti cally discussed with regard to theory and numerical simulations. In this context, the VLT first generation instrument capabilities were presented comprehensively and their use as cosmological tools discussed . The concluding remarks of the workshop focussed on the analysis of var ious possibilities for the VLT second generation instrumentation. Many of these topics were covered by invited reviews and talks, as well as some contributed talks. They are included in this volume together with the poster papers.
Author : S. Cristiani
Publisher : Springer Science & Business Media
ISBN 13 : 9783540427995
Total Pages : 416 pages
Book Rating : 4.4/5 (279 download)
Download or read book Deep Fields written by S. Cristiani and published by Springer Science & Business Media. This book was released on 2001-12 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a synopsis of modern deep-field astronomy, based on the powerful telescopes and instruments developed in recent years. It is organized along topical themes, such as the extragalactic background radiation at different wavelengths, the evolution of galaxies, the history of star formation, the nature of absorbers, the reionization of the intergalactic medium, the validity of photometric redshifts, gravitational lensing, and clustering of galaxies. Stellar and substellar objects were not neglected, however, and one session was devoted to nearby bodies such as trans-Neptunian solar system objects, brown dwarfs, and stars with special characteristics.
Author : Irwin Kenneth Horowitz
Publisher :
ISBN 13 :
Total Pages : 600 pages
Book Rating : 4.:/5 (355 download)
Download or read book Evolution of Emission Line Galaxies written by Irwin Kenneth Horowitz and published by . This book was released on 1994 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : JOHN JOSEPH SALZER
Publisher :
ISBN 13 :
Total Pages : 265 pages
Book Rating : 4.:/5 (682 download)
Download or read book OBSERVATIONS OF A COMPLETE SAMPLE OF EMISSION-LINE GALAXIES. written by JOHN JOSEPH SALZER and published by . This book was released on 1987 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: observed large-scale structure in the universe.
Author : Sara Danielle Negussie
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (14 download)
Download or read book Ambiguous Emission-line Galaxies written by Sara Danielle Negussie and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : S. L. Morris
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (593 download)
Download or read book Emission Line Studies of Active Galaxies written by S. L. Morris and published by . This book was released on 1984 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H. J. A. Röttgering
Publisher :
ISBN 13 :
Total Pages : 548 pages
Book Rating : 4.3/5 (91 download)
Download or read book The Most Distant Radio Galaxies written by H. J. A. Röttgering and published by . This book was released on 1999 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Cristina Carmen Popescu
Publisher :
ISBN 13 :
Total Pages : 186 pages
Book Rating : 4.:/5 (889 download)
Download or read book Search for Emission-line Galaxies Towards Nearby Voids written by Cristina Carmen Popescu and published by . This book was released on 1996 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Volker Muller
Publisher : World Scientific
ISBN 13 : 9814544787
Total Pages : 418 pages
Book Rating : 4.8/5 (145 download)
Download or read book Large Scale Structure: Tracks And Traces - Proceedings Of 12th Potsdam Cosmology Workshop written by Volker Muller and published by World Scientific. This book was released on 1998-08-08 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the largest physical structures in the universe is essential for the comprehension of the cosmos as a whole. We want to know how our world is formed, what it is made of and how it evolves.Galaxies, as the most visible constituents of the universe, are interesting probes for the cosmic time sequence. Their formation and development provides us with unique clues to the cosmic evolution. This is tightly connected with the hierarchical cosmic structure: groups and clusters of galaxies and their embedding into the large scale structure offer the opportunity to study the dependencies.Galaxy redshift surveys delineate most impressively a large cosmic web, which is composed of sheets and filaments. Grand simulations of the cosmic evolution complement these observations from the theoretical side and allow one quantify and compare various model universes.Quasar absorption line studies, gravitational lensing and even the X-ray background radiation provide important quantitative measures of the history of matter clustering. Finally, the microwave radiation traces very early structures, which are supposed to originate in the phase of inflationary expansion shortly after the big bang.This volume constituting the proceedings of the 12th Potsdam Cosmology Workshop, deals with the basic aspects of cosmological structure formation on the largest physical scales.
Author : José Luis Herrero
Publisher :
ISBN 13 :
Total Pages : 182 pages
Book Rating : 4.:/5 (345 download)
Download or read book An Automated Survey for Emission-line Galaxies written by José Luis Herrero and published by . This book was released on 1995 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Christine Ellen Ritchie
Publisher :
ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.:/5 (799 download)
Download or read book Statistics of Emission-line Galaxies in Several of Morgan's Poor Clusters written by Christine Ellen Ritchie and published by . This book was released on 1989 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Shoubaneh Hemmati
Publisher :
ISBN 13 : 9781339465777
Total Pages : 120 pages
Book Rating : 4.4/5 (657 download)
Download or read book Resolved (KPC-scale) Properties of Emission-line Galaxies at Intermediate Redshifts written by Shoubaneh Hemmati and published by . This book was released on 2015 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of this dissertation is to study resolved substructures in galaxies at kpc-scale and their relation with the global properties of the host galaxy using combined high resolution photometric data from the Hubble Space Telescope and very deep long exposure spectroscopic observations with the Keck telescopes. I use the optical and near-infrared data taken as part of the CANDELS project to perform pixel-by-pixel analysis of 120 galaxies at intermediate redshifts. I produce resolved rest-frame (U-V) color, stellar mass and star formation rate surface densities, stellar age and extinction maps and profiles along the galaxies rotation axes. I study physical properties of clumps and quantify their spatial distribution and covering fraction. Investigating the evolution of covering fraction and average radial distance with respect to both redshift and stellar mass of the host galaxy, suggests that if the central bulge growth is due to migration of stellar clumps, it should have happened at higher redshifts. I find that there exists a tight correlation between the stellar mass and star formation rate surface densities of pixels inside individual galaxies as well as among red and blue clumps over different galaxies. The tightness of the blue clumps main sequence regardless of the large redshift rang of the hosts, suggests no evolution in the nature of blue clumps with time. I estimate small-scale distribution of stellar dust extinction from pixel-by-pixel SED fitting and used H[Alpha]/ H[Beta] nebular emission line ratios from Keck/DEIMOS spectra at each spatial resolution element to measure attenuation faced by ionized gas at different radii from the center of galaxies. I find a good agreement between the integrated and median of resolved color excess measurements in the galaxies. I find that inclination plays an important role in the variation of the nebular to stellar color excess ratio. I find that the nebular color excess increases with stellar mass surface density. This explains the absence of radial trend in the nebular color excess in lower mass galaxies. I also demonstrate the usefulness of resolved optical line ratio plots in identifying otherwise hidden AGNs.
Author : Hyron Spinrad
Publisher : Springer Science & Business Media
ISBN 13 : 3540290079
Total Pages : 202 pages
Book Rating : 4.5/5 (42 download)
Download or read book Galaxy Formation and Evolution written by Hyron Spinrad and published by Springer Science & Business Media. This book was released on 2006-08-29 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Astronomical Life – Observing the Depths of the Universe” Though science as a subject can be di?cult, what has been more important for me is that its practice can also be rewarding fun! This book is crafted to expose the reader to the excitement of modern observational cosmology through the study of galaxy evolution over space and cosmic time. Recent extragalactic research has led to many rapid advances in the ?eld. Even a suitable skeptic of certain pronouncements about the age and structure of the Universe should be pleased with the large steps that have been taken in furthering our understanding of the Universe since the early 1990’s. My personal involvement in galaxy research goes back to the 1960’s. At that point, galaxies were easily recognized and partially understood as organized c- lections of stars and gas. What their masses were presented a problem, which I supposed would just fade away. But fade it didn’t. Distant active nuclei and quasars were discovered in the mid-1960’s. A c- mon view of QSOs was that they have large redshifts, but what use are they for cosmology or normal galaxy astrophysics? I shared that conclusion. My expec- tions fell below their potential utility. In short, the Universe of our expectations rarely matches the Universe as it is discovered.
Author : Mikkel Theiss Kristensen
Publisher :
ISBN 13 :
Total Pages : 93 pages
Book Rating : 4.:/5 (967 download)
Download or read book Rare Emission-line Galaxies in the COSMOS Field written by Mikkel Theiss Kristensen and published by . This book was released on 2015 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt:
