Download or read book Large Scale Clustering at High Redshift written by Manuela Magliocchetti and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Clustering at High Redshift written by Alain Mazure and published by . This book was released on 2000 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Astronomers, astrophysicists, and other scientists and researchers from laboratories, observatories, and universities throughout North America, Europe, Asia, and the Middle East present 60 contributions addressing clustering from low to high redshift; clustering measurements in surveys; IR and sub-mm surveys; theory and models; high-redshift clusters of galaxies; QSO absorption lines; primordial galaxies; clustering around QSOs and radio galaxies; and the physics of the intra-cluster medium. Approximately 40 poster sessions are also presented. Lacks an index. Annotation c. Book News, Inc., Portland, OR (booknews.com)
Download or read book Large Scale Structure and Motions in the Universe written by Marino Mezzetti and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 1980's have been times of great excitement in Astrophysics and Cosmology. Professors Dennis Sciama and Fabio Mardirossian and all the other Members of the Organizing Committees are to be congratulated for having given us a taste of this excitement in Trieste, by inviting the leaders of the subject to the meeting they have organized. The excitement has corne from the new observations of the three-dimensional structure of the universe through a large number of new measurements of redshifts. These have revealed that clusters of galaxies are distributed on the surface of big empty bubbles of diameters of the order of 20-50 Mpc. Additionally, there is some evidence for invisible dark matter (whose composition is not known) as well as evidence for the gravitational lens effect. To cap this has corne the supernova of 1987, an event which last occurred 383 years ago. For the first time in history, the neutrino flux from the supernova was measured, giving limits to neutrino masses and numbers of neutrino types. (The dark matter problem is related to Particle Physics - beyond this standard model). It is good to be alive when all this happens and to try to comprehend this. Once again, our appreciation to the organisers and to those who presented their beautiful results.
Download or read book High Redshift and Primeval Galaxies written by Jacqueline Bergeron and published by Atlantica Séguier Frontières. This book was released on 1987 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Pan Chromatic View of Clusters of Galaxies and the Large Scale Structure written by Manolis Plionis and published by Springer. This book was released on 2008-02-17 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reviews presented in this volume cover a huge range of cluster of galaxies topics. Readers will find the book essential reading on subjects such as the physics of the ICM gas, the internal cluster dynamics, and the detection of clusters using different observational techniques. The expert chapter authors also cover the huge advances being made in analytical or numerical modeling of clusters, weak and strong lensing effects, and the large scale structure as traced by clusters.
Download or read book International Workshop on Large Scale Structure in the Universe Potsdam 18 24 September 1994 written by Jan P. Mucket and published by World Scientific. This book was released on 1995 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Galaxies at High Redshift written by I. Pérez-Fournon and published by Cambridge University Press. This book was released on 2003-03-20 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents lectures of the XI Canary Islands Winter School of Astrophysics written by experts in the field.
Download or read book Scientific Requirements for Extremely Large Telescopes IAU S232 written by International Astronomical Union. Symposium and published by Cambridge University Press. This book was released on 2006-06-15 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings volume for researchers and graduate students of astronomy, covering the most exciting science and key ELT projects.
Download or read book Robust Measurements of the Large scale Clustering of Galaxy Survey Data written by Mehdi Rezaie and published by . This book was released on 2021 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Large-scale structure (LSS) of the Universe traced by galaxies is one of the essential probes of dark energy, dark matter, neutrino masses, nature of gravity, and statistical properties of primordial fluctuations. The clustering of primordial fluctuations from the cosmic microwave background to LSS provides a standard ruler test to study the dynamics of the cosmic expansion and the mysterious dark energy. Additionally, LSS can be utilized to reconstruct the primordial features and the statistical properties of the initial conditions of the Universe. Future galaxy redshift surveys are designed to extend aggressively to higher redshifts to reach a greater cosmic volume for improved precision as well as for studying the dynamics of dark energy further back in time. For instance, the Dark Energy Spectroscopic Instrument (DESI) will observe millions of galaxies and quasars, producing a three–dimensional map probing the Universe across 10 billion light-years or out to the redshift of 3.5. With enormous data volume, we can address fundamental cosmological problems with higher statistical precision, but such analyses demand more advanced methods and theoretical modeling of systematics. Emmission line galaxies (ELGs) are star-forming galaxies that populate the high redshift universe and therefore are promising tracers for LSS that will be targeted in future galaxy surveys. Quasi-stellar objects or quasars (QSOs) are distant galaxies that host massive black holes and the accreting black holes make these objects bright enough to be used as targets for high redshift galaxy surveys. However, the measurements of such targets are subject to various observational systematic effects that are still largely unknown. Mitigating such effects is crucial for deriving unbiased and precise cosmological constraints. This dissertation addresses the challenge of observational systematics by comparing the results of various approaches. My dissertation consists of three parts: In the first part, I establish a deep learning approach to model and mitigate the effects of observational systematics in the large-scale clustering of galaxies. I implement, validate, and apply the method to log-normal mock datasets as well as ELGs from real imaging data that will be used for targeting in DESI. I demonstrate that the nonlinear approach based on neural networks reduces observational systematics more efficiently than conventional linear regression. In the second part, I enhance the methodology for the final sample of quasars from the extended Baryon Acoustic Oscillation Survey (eBOSS). I compare the performance of different mitigation techniques and show that there is no signature of nonlinear systematics in the data. In the third part, I use the resulting improved data to constrain the initial conditions of the Universe. The methods and tools developed in this dissertation pave the path of probing the large-scale structure using data from the upcoming next generation of galaxy redshift surveys such as DESI and Euclid. This thesis presents my contribution as a member of the DESI and eBOSS collaborations.
Download or read book A Pan Chromatic View of Clusters of Galaxies and the Large Scale Structure written by Manolis Plionis and published by Springer Science & Business Media. This book was released on 2008-02-29 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reviews presented in this volume cover a huge range of cluster of galaxies topics. Readers will find the book essential reading on subjects such as the physics of the ICM gas, the internal cluster dynamics, and the detection of clusters using different observational techniques. The expert chapter authors also cover the huge advances being made in analytical or numerical modeling of clusters, weak and strong lensing effects, and the large scale structure as traced by clusters.
Download or read book The Zeldovich Universe IAU S308 written by Rien van de Weygaert and published by Cambridge University Press. This book was released on 2016-11-10 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: On megaparsec scales, matter and galaxies have aggregated into a complex network of interconnected filaments, wall-like structures and compact clusters surrounded by large near-empty void regions. Dubbed the 'Cosmic Web', theoretical and observational studies have led to its recognition as a key aspect of structure in the Universe, representing a universal phase in the gravitationally driven emergence and evolution of cosmic structure. IAU Symposium 308 marked the centenary of the birth of the Russian physicist and cosmologist Yakov B. Zeldovich (1914-87), who was instrumental in the development of this view of structure formation. His seminal work paved the way towards an understanding of the complex web-like structure observed in our Universe. This volume synthesizes the insights obtained from many different observational and theoretical studies, and helps prepare researchers and students working in this vibrant field for the many upcoming surveys.
Download or read book The Large scale Structure of the Universe written by Phillip James Edwin Peebles and published by Princeton University Press. This book was released on 1980-11-21 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the Nobel Prize–winning physicist Opinions on the large-scale structure of the early universe range widely from primeval chaos to a well-ordered mass distribution. P. J. E. Peebles argues that the evolution proceeded from a nearly uniform initial state to a progressively more irregular and clumpy universe. The discussion centers on the largest known structures, the clusters of galaxies, the empirical evidence of the nature of the clustering, and the theories of how the clustering evolves in an expanding universe. In Chapter One the author provides an historical introduction to the subject. Chapter Two contains a survey of methods used to deal with the Newtonian approximation to the theory of the evolution of the mass distribution. Recent progress in the use of statistical measures of the clustering is described in Chapter Three. Chapters Four and Five return to techniques for dealing with cosmic evolution, in the statistical measures of clustering and under general relativity theory. Lastly, in Chapter Six Professor Peebles assesses the progress in attempts to link theory and observation to arrive at a well established physical picture of the nature and evolution of the universe.
Download or read book The Evolving Universe written by Donald Hamilton and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. The Workshop and this Tome In the excellent bucolic setting of SchloB Ringberg in Upper Bavaria, over 50 scientists assembled during the week of 23-28 September 1996 to discuss recent results, both theoretical and observational in nature, on the large scale structure of the Universe. Such a topic is perhaps nowadays far too encompassing, and is essentially all of what we used to call "observational cosmology. " The original philosophy of the organization of this meeting was deliber ated aimed at the younger community and their contributions. As a conse quence, the content of the presentations was refreshingly new, as it should be. In spite of the deficiences caused by the lack of certain key researchers in this field, for one reason or another, the final result was rewarding to all. Although the conference was held in Fall 1996, the contributions contained herein were submitted as late as Spring 1998, thus the content maintains some degree of trendiness. Originally the current volume was to be a "proceedings. " This refers to the usual archival tome that fills one's shelf and is rarely consulted, except to see the canonical group photo, which by the way, we also have. Nevertheless, I wanted something more than that. Although the field is rapidly changing, with so-called facts in a state ofconstant volubility, now is a good time for reflection prior to the commencement ofthe Sloan Survey, presumably the definitive large-scale program of low- to moderate-redshift galaxies in our lifetime.
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.
Download or read book Hubble Space Telescope And The High Redshift Universe The Proceedings Of The 37th Herstmonceux Conference written by Nial R Tanvir and published by World Scientific. This book was released on 1997-05-03 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the successful refurbishment mission, the Hubble Space Telescope has made dramatic and exciting progress in unravelling the nature of sources at high redshift. The upcoming installation of the next generation of instruments will give further impetus to the field, particularly in the infrared spectral region.The proceedings of this landmark meeting review the results of the first three years of post-repair data, including the deepest astronomical images ever obtained: the Hubble Deep Field. This was the first presentation of these exciting results at a major international conference. The interface between HST and ground-based facilities and planned programmes with forthcoming HST instruments are also extensively discussed.
Download or read book General Relativity and Gravitation 1992 Proceedings of the Thirteenth INT Conference on General Relativity and Gravitation held at Cordoba Argentina 28 June July 4 1992 written by R.J. Gleiser and published by CRC Press. This book was released on 1993-01-01 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: General Relativity and Gravitation 1992 contains the best of 700 papers presented at the tri-annual INT conference, generally recognized as the key conference in the area. The plenary and invited papers are published in full, along with summaries of parallel symposia and workshops. The list of plenary speakers is as impressive as ever, with contributions from Jim Hartle, Roger Penrose, and Lee Smolin among many others.
Download or read book Large Scale Structures of the Universe written by International Astronomical Union. Symposium and published by Springer Science & Business Media. This book was released on 1988-07-31 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the 130th Symposium of the International Astronomical Union, dedicated to the memory of Marc A. Aaronson (1950-1987), held in Balatonfured, Hungary, June 15-20, 1987
