Lyman Alpha As An Astrophysical And Cosmological Tool

Author : Mark Dijkstra,J. Xavier Prochaska,Masami Ouchi,Matthew Hayes
Publisher : Springer Nature
Page : 421 pages
File Size : 42,7 Mb
Release : 2019-11-12
Category : Science
ISBN : 9783662596234

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Lyman-alpha as an Astrophysical and Cosmological Tool by Mark Dijkstra,J. Xavier Prochaska,Masami Ouchi,Matthew Hayes Pdf

The hydrogen Lyman-alpha line is of utmost importance to many fields of astrophysics. This UV line being conveniently redshifted with distance to the visible and even near infrared wavelength ranges, it is observable from the ground, and provides the main observational window on the formation and evolution of high redshift galaxies. Absorbing systems that would otherwise go unnoticed are revealed through the Lyman-alpha forest, Lyman-limit, and damped Lyman-alpha systems, tracing the distribution of baryonic matter on large scales, and its chemical enrichment. We are living an exciting epoch with the advent of new instruments and facilities, on board of satellites and on the ground. Wide field and very sensitive integral field spectrographs are becoming available on the ground, such as MUSE at the ESO VLT. The giant E-ELT and TMT telescopes will foster a quantum leap in sensitivity and both spatial and spectroscopic resolution, to the point of being able, perhaps, to measure directly the acceleration of the Hubble flow. In space, the JWST will open new possibilities to study the Lyman-alpha emission of primordial galaxies in the near infrared. As long as the Hubble Space Telescope will remain available, the UV-restframe properties of nearby galaxies will be accessible to our knowledge. Therefore, this Saas-Fee course appears very timely and should meet the interest of many young researchers.

Author : Steven Arthur Dawson
Publisher : Universal-Publishers
Page : 203 pages
File Size : 45,5 Mb
Release : 2005
Category : Science
ISBN : 9781581122947

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Lyman Alpha Emitting Galaxies at High Redshift by Steven Arthur Dawson Pdf

As late as 1995, the anticipated widespread population of primeval galaxies remained at large, lurking undetected at unknown redshifts, with undiscovered properties. We present results from our efforts to detect and characterize primeval galaxies by their signature high-redshift Lyman-alpha emission lines utilizing two observational techniques: serendipitous slit spectroscopy and narrowband imaging. By pushing these techniques to their utmost limits, we probe the Lyman-alpha-emitting galaxy population out to redshifts as high as z = 6.5. Galaxies at this epoch reside in a universe which is just 800 million years old, a mere 6% of its current age. As such, this work provides one account of the manner by which observational cosmology has recently shifted from merely marveling at the incredible lookback times implied by the first few high-redshift detections, to the routine assembly of high-redshift datasets designed to address specific astrophysical issues.

Author : Andrei Mesinger
Publisher : Springer
Page : 286 pages
File Size : 44,9 Mb
Release : 2015-11-28
Category : Science
ISBN : 9783319219578

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Understanding the Epoch of Cosmic Reionization by Andrei Mesinger Pdf

The dawn of the first stars, galaxies and black holes signaled a fundamental milestone in our Universe’s evolution: the Epoch of Reionization. The light from these galactic ancestors began spreading out, ionizing virtually every atom in existence. Our Universe transitioned from darkness to light, from cold to hot, from simple and boring to the wondrous cosmic zoo we see around us today. Despite its importance, observations of reionization have been few, and their interpretation has been highly controversial. Fortunately, this is rapidly changing. We will soon enter the "Big Data” era of this mysterious epoch, driven by an upcoming wave of observations with state-of-the-art telescopes as well as new sophisticated analysis tools. The aim of this volume is to summarize the current status and future outlook of the reionization field. We bring together leading experts in many sub-disciplines, highlighting the measurements that will illuminate our understanding of reionization and the cosmic dawn: (i) 21cm interferometry; (ii) high-redshift quasar spectra; (iii) high-redshift galaxy surveys; (iv) primary and secondary anisotropies of the Cosmic Microwave Background; (v) high-resolution studies of the metal content of early galaxies. We seek a roadmap to interpreting the wealth of upcoming observations. What is the best use of limited observational resources? How do we develop theoretical tools tailored for each observation? Ultimately, what will we learn about the epoch of reionization and our galactic ancestors?

Author : Maurice Mandel Shapiro,Todor Stanev,J. P. Wefel
Publisher : World Scientific
Page : 373 pages
File Size : 45,9 Mb
Release : 2004
Category : Science
ISBN : 9789812387271

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Relativistic Astrophysics and Cosmology by Maurice Mandel Shapiro,Todor Stanev,J. P. Wefel Pdf

This book constitutes the proceedings of the 13th Course of the International School of Cosmic Ray Astrophysics. It focuses on major areas of astrophysics, their relation to cosmic ray physics, and our current understanding of the energetic processes in the Galaxy and the Universe that govern the acceleration and form the features of the cosmic rays that we detect at Earth.The proceedings have been selected for coverage in: ? Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings)? CC Proceedings ? Engineering & Physical Sciences

Author : Lyman Page
Publisher : Princeton University Press
Page : 138 pages
File Size : 54,6 Mb
Release : 2020-04-07
Category : Science
ISBN : 9780691201696

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The Little Book of Cosmology by Lyman Page Pdf

The cutting-edge science that is taking the measure of the universe The Little Book of Cosmology provides a breathtaking look at our universe on the grandest scales imaginable. Written by one of the world's leading experimental cosmologists, this short but deeply insightful book describes what scientists are revealing through precise measurements of the faint thermal afterglow of the Big Bang—known as the cosmic microwave background, or CMB—and how their findings are transforming our view of the cosmos. Blending the latest findings in cosmology with essential concepts from physics, Lyman Page first helps readers to grasp the sheer enormity of the universe, explaining how to understand the history of its formation and evolution in space and time. Then he sheds light on how spatial variations in the CMB formed, how they reveal the age, size, and geometry of the universe, and how they offer a blueprint for the formation of cosmic structure. Not only does Page explain current observations and measurements, he describes how they can be woven together into a unified picture to form the Standard Model of Cosmology. Yet much remains unknown, and this incisive book also describes the search for ever deeper knowledge at the field's frontiers—from quests to understand the nature of neutrinos and dark energy to investigations into the physics of the very early universe.

Author : Colloquium on the Age of the Universe St,Proceedings of the National Academy of Sciences
Publisher : National Academies Press
Page : 274 pages
File Size : 49,6 Mb
Release : 1998-01-01
Category : Cosmology
ISBN : 9780309060264

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Colloquium on the Age of the Universe, Dark Matter, and Structure Formation by Colloquium on the Age of the Universe St,Proceedings of the National Academy of Sciences Pdf

Author : Stephen Webb
Publisher : Springer Science & Business Media
Page : 371 pages
File Size : 55,7 Mb
Release : 2012-05-19
Category : Science
ISBN : 9781461421948

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New Eyes on the Universe by Stephen Webb Pdf

“New Eyes on the Universe – Twelve Cosmic Mysteries and the Tools We Need to Solve Them” gives an up-to-date broad overview of some of the key issues in modern astronomy and cosmology. It describes the vast amount of observational data that the new generation of observatories and telescopes are currently producing, and how that data might solve some of the outstanding puzzles inherent in our emerging world view. Included are questions such as: What is causing the Universe to blow itself apart? What could be powering the luminous gamma-ray bursters? Where is all the matter in the Universe? Do other Earths exist? Is there intelligent life out there? The renowned author explains clearly, without recourse to mathematics, why each question is puzzling and worthy of research. Included in the study of the wide range of sensitive and powerful instruments used by scientists to try and solve these problems are ones which capture electromagnetic radiation and ‘telescopes’ for cosmic rays, neutrinos, gravitational waves, and dark matter. This book discusses twelve areas of active astronomical research, ranging from the nature of dark energy to the existence or otherwise of extraterrestrial civilizations, and devotes one chapter to each topic. Although astronomers tackle each of these questions using information gleaned from all possible wavelengths and sources (and this is emphasized throughout the book), in this work the author dedicates each chapter to a particular observational method. One chapter covers X-ray telescopes for investigating black holes, while another uses infrared telescopes to learn more about planetary information.

Author : Fulvio Melia
Publisher : CRC Press
Page : 440 pages
File Size : 54,9 Mb
Release : 2020-11-04
Category : Science
ISBN : 9781000198317

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The Cosmic Spacetime by Fulvio Melia Pdf

The growth of cosmology into a precision science represents one of the most remarkable stories of the past century. Much has been written chronicling this development, but rarely has any of it focused on the most critical element of this work–the cosmic spacetime itself. Addressing this lacuna is the principal focus of this book, documenting the growing body of evidence compelling us–not only to use this famous solution to Einstein's equations in order to refine the current paradigm, but–to probe its foundation at a much deeper level. Its excursion from the smallest to largest possible scales insightfully reveals an emerging link between the Universe we behold and the established tenets of our most fundamental physical theories. Key Features: Uncovers the critical link between the Local Flatness Theorem in general relativity and the symmetries informing the spacetime's metric coefficients Develops a physical explanation for some of the most unpalatable coincidences in cosmology Provides a sober assessment of the horizon problems precluding our full understanding of the early Universe Reveals a possible explanation for the origin of rest-mass energy in Einstein's theory In spite of its technical layout, this book does not shy away from introducing the principal players who have made the most enduring contributions to this field. Anyone with a graduate level foundation in physics and astronomy will be able to easily follow its contents.

Author : Malcolm S. Longair
Publisher : Springer Science & Business Media
Page : 737 pages
File Size : 40,6 Mb
Release : 2007-11-13
Category : Science
ISBN : 9783540734789

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Galaxy Formation by Malcolm S. Longair Pdf

Delineating the huge strides taken in cosmology in the past ten years, this much-anticipated second edition of Malcolm Longair's highly appreciated textbook has been extensively and thoroughly updated. It tells the story of modern astrophysical cosmology from the perspective of one of its most important and fundamental problems – how did the galaxies come about? Longair uses this approach to introduce the whole of what may be called "classical cosmology". What’s more, he describes how the study of the origin of galaxies and larger-scale structures in the Universe has provided us with direct information about the physics of the very early Universe.

Author : Chris Impey
Publisher : W. W. Norton & Company
Page : 304 pages
File Size : 45,8 Mb
Release : 2018-11-13
Category : Science
ISBN : 9781324000945

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Einstein's Monsters: The Life and Times of Black Holes by Chris Impey Pdf

The astonishing science of black holes and their role in understanding the history and future of our universe. Black holes are the most extreme objects in the universe, and yet they are ubiquitous. Every massive star leaves behind a black hole when it dies, and every galaxy harbors a supermassive black hole at its center. Frighteningly enigmatic, these dark giants continue to astound even the scientists who spend their careers studying them. Which came first, the galaxy or its central black hole? What happens if you travel into one—instant death or something weirder? And, perhaps most important, how can we ever know anything for sure about black holes when they destroy information by their very nature? In Einstein’s Monsters, distinguished astronomer Chris Impey takes readers on an exploration of these and other questions at the cutting edge of astrophysics, as well as the history of black holes’ role in theoretical physics—from confirming Einstein’s equations for general relativity to testing string theory. He blends this history with a poignant account of the phenomena scientists have witnessed while observing black holes: stars swarming like bees around the center of our galaxy; black holes performing gravitational waltzes with visible stars; the cymbal clash of two black holes colliding, releasing ripples in space-time. Clear, compelling, and profound, Einstein’s Monsters reveals how our comprehension of black holes is intrinsically linked to how we make sense of the universe and our place within it. From the small questions to the big ones—from the tiniest particles to the nature of space-time itself—black holes might be the key to a deeper understanding of the cosmos.

Author : Waltraut Carola Seitter,Hilmar W. Duerbeck,M. Tacke
Publisher : Unknown
Page : 348 pages
File Size : 40,5 Mb
Release : 1988
Category : Astronomy
ISBN : UOM:39015015756524

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Large-scale Structures in the Universe by Waltraut Carola Seitter,Hilmar W. Duerbeck,M. Tacke Pdf

Author : Lizhi Fang,Remo Ruffini
Publisher : World Scientific
Page : 234 pages
File Size : 51,5 Mb
Release : 1983
Category : Science
ISBN : 9971950669

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Basic Concepts in Relativistic Astrophysics by Lizhi Fang,Remo Ruffini Pdf

Author : Lizhi Fang,Remo Ruffini
Publisher : World Scientific
Page : 231 pages
File Size : 42,8 Mb
Release : 1985-12-01
Category : Science
ISBN : 9789814518949

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Galaxies, Quasars And Cosmology by Lizhi Fang,Remo Ruffini Pdf

This volume comprises lectures delivered at the First Equatorial School of Relativistic Astrophysics. It covers various topics related to observational and theoretical problems of galaxies, quasars and cosmology. The aim is to analyze current problems.

Author : I︠A︡kov Borisovich Zelʹdovich,I. D. Novikov
Publisher : University of Chicago Press
Page : 760 pages
File Size : 47,7 Mb
Release : 1971
Category : Science
ISBN : 0226979571

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Relativistic Astrophysics, 2 by I︠A︡kov Borisovich Zelʹdovich,I. D. Novikov Pdf

Though the kinematics of the evolving universe became known decades ago, research into the physics of processes occurring in the expanding universe received a reliable observational and theoretical basis only in more recent years. These achievements have led in turn to the emergence of new problems, on which an unusually active assault has begun. This second volume of Relativistic Astrophysics provides a remarkably complete picture of the present state of cosmology. It is a synthesis of the theoretical foundations of contemporary cosmology, which are derived from work in relativity, plasma theory, thermodynamics, hydrodynamics, and particle physics. It presents the theoretical work that explains, describes, and predicts the nature of the universe, the physical process that occur in it, the formation of galaxies, the synthesis of the light elements, and the cosmological singularity and the theory of gravitation. This book, long and eagerly awaited, is essential for everyone whose work is related to cosmology and astrophysics.

Author : David B. Cline
Publisher : Springer Science & Business Media
Page : 551 pages
File Size : 55,5 Mb
Release : 2013-03-09
Category : Science
ISBN : 9783662045879

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Sources and Detection of Dark Matter and Dark Energy in the Universe by David B. Cline Pdf

Dark matter research is one of the most fascinating and active fields among current high-profile scientific endeavours. It holds the key to all major breakthroughs to come in the fields of cosmology and astroparticle physics. The present volume is particularly concerned with the sources and the detection of dark matter and dark energy in the universe and will prove to be an invaluable research tool for all scientists who work in this field.