The Structure and Evolution of Galaxies
The Structure and Evolution of Galaxies

Author: Steve Phillipps

Publisher: John Wiley & Sons

Published: 2005-06-17

Total Pages: 330

ISBN-13:

DOWNLOAD EBOOK

The Structure and Evolution of Galaxies is a concise introduction to this fascinating subject providing the reader with the fundamentals in a clear and accessible style. This user-friendly text assumes some prerequisite knowledge of astronomy, with the necessary mathematics kept to a minimum. Beginning with an introduction to the existence of our own external galaxies, the book moves on to discuss how perceptions of galaxy development have changed over time. The three categories of galaxies are then discussed with later chapters considering their formation and evolution. The book concludes with an overview of both current developments in the field and considers the direction of future research. Clear and accessible introduction to this dynamic subject Introduces definitions of key terms and puts them in context Includes current research and future developments in the field Appendix of basic definitions to clarify key concepts An invaluable text for students of astronomy and physics

Physics in a New Era
Physics in a New Era

Author: National Research Council

Publisher: National Academies Press

Published: 2001-07-15

Total Pages: 203

ISBN-13: 0309073421

DOWNLOAD EBOOK

Physics at the beginning of the twenty-first century has reached new levels of accomplishment and impact in a society and nation that are changing rapidly. Accomplishments have led us into the information age and fueled broad technological and economic development. The pace of discovery is quickening and stronger links with other fields such as the biological sciences are being developed. The intellectual reach has never been greater, and the questions being asked are more ambitious than ever before. Physics in a New Era is the final report of the NRC's six-volume decadal physics survey. The book reviews the frontiers of physics research, examines the role of physics in our society, and makes recommendations designed to strengthen physics and its ability to serve important needs such as national security, the economy, information technology, and education.

The Composition of the Universe: The Evolution of Stars and Galaxies
The Composition of the Universe: The Evolution of Stars and Galaxies

Author: Rachel Keranen

Publisher: Cavendish Square Publishing, LLC

Published: 2016-12-15

Total Pages: 114

ISBN-13: 1502622866

DOWNLOAD EBOOK

Within galaxies, stars grow from clouds of gas and dust, shine brilliantly, and die stunning deaths. The Composition of the Universe: The Evolution of Stars and Galaxies traces the lives of stars and also the lives of famous scientists like Edwin Hubble, Albert Einstein, and Henrietta Leavitt. Closely aligned to Next Generation Science Standards, the book demonstrates how technology and scientific ideas evolve over time, just like the universe itself.

Galaxies
Galaxies

Author: Francoise Combes

Publisher: John Wiley & Sons

Published: 2021-03-05

Total Pages: 288

ISBN-13: 1119817994

DOWNLOAD EBOOK

Galaxies are vast ensembles of stars, gas and dust, embedded in dark matter halos. They are the basic building blocks of the Universe, gathered in groups, clusters and super-clusters. They exist in many forms, either as spheroids or disks. Classifications, such as the Hubble sequence (based on mass concentration and gas fraction) and the colormagnitude diagram (which separates a blue cloud from a red sequence) help to understand their formation and evolution. Galaxies spend a large part of their lives in the blue cloud, forming stars as spiral or dwarf galaxies. Then, via a mechanism that is still unclear, they stop forming stars and quietly end in the red sequence, as spheroids. This transformation may be due to galaxy interactions, or because of the feedback of active nuclei, through the energy released by their central super-massive black holes. These mechanisms could explain the history of cosmic star formation, the rate of which was far greater in the first half of the UniverseÂs life. Galaxies delves into all of these surrounding subjects in six chapters written by dedicated, specialist astronomers and researchers in the field, from their numerical simulations to their evolutions.

The Structure and Evolution of Stars
The Structure and Evolution of Stars

Author: John J. Eldridge

Publisher: World Scientific Publishing Company Incorporated

Published: 2019

Total Pages: 338

ISBN-13: 9781783265800

DOWNLOAD EBOOK

Stars are the fundamental observable constituents of the Universe. They are the first objects we see in the night sky, dominate the light produced in our own and other galaxies and nucleosynthesis in stars produces all the elements heavier than helium. A knowledge of stars and their evolution is vital in understanding other astrophysical objects from accreting black holes and galaxies to the Universe itself. The structure of a star can be described mathematically by differential equations which can be derived from the principles of hydrodynamics, electromagnetic theory, thermodynamics, quantum mechanics, and atomic and nuclear physics. The basic equations of a spherical star are derived in detail, the modes of energy transport, the equation of state, the physics of the opacity sources and the nuclear reactions are explained. Approximate solutions of the equations for stellar structure are given. Attention is given to the virial theorem, polytropic gas spheres and homology principles. The procedure for numerical solution of the equations is outlined. The evolution of a star is described from its main sequence evolution through the exhaustion of various nuclear fuels to the end points of evolution such as white dwarfs, neutron stars and black holes. Supernova explosions as the deaths of massive stars along with the nucleosynthesis of elements within stars are explained.

Fundamentals of Galaxy Dynamics, Formation and Evolution
Fundamentals of Galaxy Dynamics, Formation and Evolution

Author: Ignacio Ferreras

Publisher: UCL Press

Published: 2019-04-02

Total Pages: 200

ISBN-13: 1911307614

DOWNLOAD EBOOK

Galaxies, along with their underlying dark matter halos, constitute the building blocks of structure in the Universe. Of all fundamental forces, gravity is the dominant one that drives the evolution of structures from small density seeds at early times to the galaxies we see today. The interactions among myriads of stars, or dark matter particles, in a gravitating structure produce a system with fascinating connotations to thermodynamics, with some analogies and some fundamental differences. Ignacio Ferreras presents a concise introduction to extragalactic astrophysics, with emphasis on stellar dynamics, and the growth of density fluctuations in an expanding Universe. Additional chapters are devoted to smaller systems (stellar clusters) and larger ones (galaxy clusters). Fundamentals of Galaxy Dynamics, Formation and Evolution is written for advanced undergraduates and beginning postgraduate students, providing a useful tool to get up to speed in a starting research career. Some of the derivations for the most important results are presented in detail to enable students appreciate the beauty of maths as a tool to understand the workings of galaxies. Each chapter includes a set of problems to help the student advance with the material.

Galaxy Formation and Evolution
Galaxy Formation and Evolution

Author: Houjun Mo

Publisher: Cambridge University Press

Published: 2010-05-20

Total Pages: 841

ISBN-13: 0521857937

DOWNLOAD EBOOK

A coherent introduction for researchers in astronomy, particle physics, and cosmology on the formation and evolution of galaxies.

The First Stars
The First Stars

Author: Volker Bromm

Publisher: Springer

Published: 2016-09-07

Total Pages: 240

ISBN-13: 9783642119644

DOWNLOAD EBOOK

The formation of the first stars (Pop III stars) and galaxies is one of the great outstanding challenges in modern astrophysics and cosmology. The first stars are likely key drivers for early cosmic evolution and will be at the center of attention over the next decade. The best available space and ground-based telescopes like the Hubble Space Telescope probe the Universe to high redshifts and provide us with tantalizing hints; but they cannot yet directly detect the first generation of stars and the formation of the first galaxies. This is left as key science for future telecopes like the James Webb Space Telescope. This book is based in part on classroom tested lectures related to Pop III stars, but also draws from the author's review articles of the main physical principles involved. The book will thus combine pedagogical introductory chapters with more advanced ones to survey the cutting-edge advances from the frontier of research. It covers the theory of first star formation, the relation between first stars and dark matter, their impact on cosmology, their observational signatures, the transition to normal star formation as well as the assembly of the first galaxies. It will prepare students for interpreting observational findings and their cosmological implications.

Galaxies
Galaxies

Author: Roger John Tayler

Publisher: Cambridge University Press

Published: 1993-03-04

Total Pages: 216

ISBN-13: 9780521367103

DOWNLOAD EBOOK

Galaxies are large systems of stars, some of which contain interstellar gas and dust. They also contain much invisible matter, which may be in the form of weakly interacting elementary particles. In this introductory textbook, the first chapter introduces the study of galaxies. This is followed by two chapters on observations of galaxies, including our own. There are then three chapters on galactic structure: the manner in which motions of stars determine galactic shape, the determination of galactic masses, and the structure of discs in spirals. Galactic evolution, especially changes in chemical composition over time, is covered. The book concludes with a discussion of the origin of galaxies and their relation to more general questions in cosmology. The book includes mathematical presentation where this enables the discussion to be quantitative.

Cosmic Evolution
Cosmic Evolution

Author: Eric J. Chaisson

Publisher: Harvard University Press

Published: 2001-02-16

Total Pages: 288

ISBN-13: 0674009878

DOWNLOAD EBOOK

Chaisson addresses some of the most basic issues we can contemplate: the origin of matter and the origin of life, and the ways matter, life, and radiation interact and change with time. He designs for us an expansive yet intricate model depicting the origin and evolution of all material structures.