Topics Of Galactic Structure And Stellar And Chemical Evolution

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Topics of Galactic Structure and Stellar and Chemical Evolution

Author : Julio César Chanamé Domínguez
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (645 download)

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Book Synopsis Topics of Galactic Structure and Stellar and Chemical Evolution by : Julio César Chanamé Domínguez

Download or read book Topics of Galactic Structure and Stellar and Chemical Evolution written by Julio César Chanamé Domínguez and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: In this thesis I explore current problems of Galactic astronomy by following two distinct but complementary approaches: the kinematic and photometric properties of local stellar populations, and the theory of stellar evolution. Under the first approach, I construct the largest available catalog of genuine wide binaries (a> 100 AU) and, using the relative positions of both components on a reduced proper-motion diagram, I cleanly classify them as belonging to either the disk or the halo of the Galaxy. These samples, drawn from the Revised New Luyten Two-Tenths catalog, are complete to separations of 500 and 900 arcsec, corresponding to about 0.1 and 1 parsec, respectively. At wide separations, both distributions are well described by power laws that have, within the uncertainties, identical exponents. The fact that these distributions have similar slopes and normalizations, despite the radically different Galactic environments to which they belong today, argues for similarity of the star-formation conditions of the two populations. The fact that the halo binaries obey a single power law out to about 1 parsec permits strong constraints on halo dark-matter candidates. Using Monte Carlo simulations, we exclude a halo fully composed of MAssive Compact Halo Objects (MACHOs) more massive than 43 solar masses at 95 percent confidence. I outline the prospects for using the Sloan Digital Sky Survey in the assembly of a catalog of halo wide binaries which, by improving the statistics at large separations, will enable exploration of MACHO masses in the astrophysically important regime of heavy stellar remnants. Finally, taking advantage of the identification of faint companions of Hipparcos stars, I construct a catalog of 424 intrinsically dim (i.e., low-mass) field stars with accurate (better than 3-sigma) parallaxes. Under the approach of stellar evolution, I study the long-standing problem of abundance anomalies in red giants, concentrating in non-standard mixing processes induced by stellar rotation. Unlike most previous work, I focus on the simultaneous reproduction of the CNO abundances in both Population I and Population II giants using the same physics and models. This novel approach led to a powerful new insight on one of the most difficult problems of astrophysics: the interplay between convection and rotation in stellar envelopes.

Galaxies

Author : Roger John Tayler
Publisher : Cambridge University Press
ISBN 13 : 9780521367103
Total Pages : 216 pages
Book Rating : 4.3/5 (671 download)

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Book Synopsis Galaxies by : Roger John Tayler

Download or read book Galaxies written by Roger John Tayler and published by Cambridge University Press. This book was released on 1993-03-04 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Nucleosynthesis and Chemical Evolution of Galaxies

Author : Bernard Ephraim Julius Pagel
Publisher : Cambridge University Press
ISBN 13 : 0521840309
Total Pages : 485 pages
Book Rating : 4.5/5 (218 download)

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Book Synopsis Nucleosynthesis and Chemical Evolution of Galaxies by : Bernard Ephraim Julius Pagel

Download or read book Nucleosynthesis and Chemical Evolution of Galaxies written by Bernard Ephraim Julius Pagel and published by Cambridge University Press. This book was released on 2009-01-15 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: A lucid introduction for advanced undergraduates and graduate students, and an authoritative overview for researchers and professional scientists.

The Formation of the Milky Way

Author : E. J. Alfaro
Publisher : Cambridge University Press
ISBN 13 : 9780521174916
Total Pages : 0 pages
Book Rating : 4.1/5 (749 download)

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Book Synopsis The Formation of the Milky Way by : E. J. Alfaro

Download or read book The Formation of the Milky Way written by E. J. Alfaro and published by Cambridge University Press. This book was released on 2011-03-03 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Is the current state of our galaxy primarily the result of its initial conditions or is it the product of a lifetime of complex interactions with its environment? This volume presents papers dedicated to exploring this fundamental question and examines all the key physical processes involved in the formation and evolution of the Milky Way. A dozen invited review articles by international experts summarize our understanding to date while more than fifty topical research papers present the latest results. Together, these papers provide a state-of-the-art view of topical issues such as disk instabilities, large-scale star formation, large-scale structure formation in our galaxy, chemical evolution, disk-halo feedback, the galactic globular cluster system, stellar populations, and the formation of galaxies. Also included are three panel sessions identifying key routes for critical future research. For graduate students and researchers, this volume provides a valuable and timely review of our new vision of the formation and evolution of our galaxy.

Nucleosynthesis and Chemical Evolution of Galaxies

Author : Bernard E. J. Pagel
Publisher : Cambridge University Press
ISBN 13 : 9780521559584
Total Pages : 394 pages
Book Rating : 4.5/5 (595 download)

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Book Synopsis Nucleosynthesis and Chemical Evolution of Galaxies by : Bernard E. J. Pagel

Download or read book Nucleosynthesis and Chemical Evolution of Galaxies written by Bernard E. J. Pagel and published by Cambridge University Press. This book was released on 1997-09-04 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: A lucid, wide-ranging graduate textbook on the topical subject of galactic chemical evolution - by a pioneer of the field.

Old Stellar Populations

Author : Santi Cassisi
Publisher : John Wiley & Sons
ISBN 13 : 3527665544
Total Pages : 506 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Old Stellar Populations by : Santi Cassisi

Download or read book Old Stellar Populations written by Santi Cassisi and published by John Wiley & Sons. This book was released on 2013-08-29 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book discusses the theoretical path to decoding the information gathered from observations of old stellar systems. It focuses on old stellar systems because these are the fossil record of galaxy formation and provide invaluable information ont he evolution of cosmic structures and the universe as a whole. The aim is to present results obtained in the past few years for theoretical developments in low mass star research and in advances in our knowledge of the evolution of old stellar systems. A particularly representative case is the recent discovery of multiple stellar populations in galactic globular clusters that represents one of the hottest topics in stellar and galactic astrophysics and is discussed in detail. Santi Cassisi has authored about 270 scientific papers, 150 of them in peer-reviewed journals, and the title Evolution of Stars and Stellar Populations.

The Origin of the Galaxy and Local Group

Author : Joss Bland-Hawthorn
Publisher : Springer Science & Business Media
ISBN 13 : 3642417205
Total Pages : 240 pages
Book Rating : 4.6/5 (424 download)

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Book Synopsis The Origin of the Galaxy and Local Group by : Joss Bland-Hawthorn

Download or read book The Origin of the Galaxy and Local Group written by Joss Bland-Hawthorn and published by Springer Science & Business Media. This book was released on 2014-02-11 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the updated and expanded lecture notes of the 37th Saas-Fee Advanced Course organised by the Swiss Society for Astrophysics and Astronomy. It offers the most comprehensive and up to date review of one of the hottest research topics in astrophysics - how our Milky Way galaxy formed. Joss Bland-Hawthorn & Ken Freeman lectured on Near Field Cosmology - The Origin of the Galaxy and the Local Group. Francesca Matteucci’s chapter is on Chemical evolution of the Milky Way and its Satellites. As designed by the SSAA, books in this series – and this one too – are targeted at graduate and PhD students and young researchers in astronomy, astrophysics and cosmology. Lecturers and researchers entering the field will also benefit from the book.

Galaxy Formation and Evolution

Author : Houjun Mo
Publisher : Cambridge University Press
ISBN 13 : 0521857937
Total Pages : 841 pages
Book Rating : 4.5/5 (218 download)

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Book Synopsis Galaxy Formation and Evolution by : Houjun Mo

Download or read book Galaxy Formation and Evolution written by Houjun Mo and published by Cambridge University Press. This book was released on 2010-05-20 with total page 841 pages. Available in PDF, EPUB and Kindle. Book excerpt: A coherent introduction for researchers in astronomy, particle physics, and cosmology on the formation and evolution of galaxies.

Evolution of Stars and Stellar Populations

Author : Maurizio Salaris
Publisher : John Wiley & Sons
ISBN 13 : 9780470092224
Total Pages : 386 pages
Book Rating : 4.0/5 (922 download)

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Book Synopsis Evolution of Stars and Stellar Populations by : Maurizio Salaris

Download or read book Evolution of Stars and Stellar Populations written by Maurizio Salaris and published by John Wiley & Sons. This book was released on 2005-12-13 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evolution of Stars and Stellar Populations is a comprehensive presentation of the theory of stellar evolution and its application to the study of stellar populations in galaxies. Taking a unique approach to the subject, this self-contained text introduces first the theory of stellar evolution in a clear and accessible manner, with particular emphasis placed on explaining the evolution with time of observable stellar properties, such as luminosities and surface chemical abundances. This is followed by a detailed presentation and discussion of a broad range of related techniques, that are widely applied by researchers in the field to investigate the formation and evolution of galaxies. This book will be invaluable for undergraduates and graduate students in astronomy and astrophysics, and will also be of interest to researchers working in the field of Galactic, extragalactic astronomy and cosmology. comprehensive presentation of stellar evolution theory introduces the concept of stellar population and describes "stellar population synthesis" methods to study ages and star formation histories of star clusters and galaxies presents stellar evolution as a tool for investigating the evolution of galaxies and of the universe in general

Dwarf Galaxies: Keys to Galaxy Formation and Evolution

Author : Polychronis Papaderos
Publisher : Springer Science & Business Media
ISBN 13 : 3642220185
Total Pages : 347 pages
Book Rating : 4.6/5 (422 download)

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Book Synopsis Dwarf Galaxies: Keys to Galaxy Formation and Evolution by : Polychronis Papaderos

Download or read book Dwarf Galaxies: Keys to Galaxy Formation and Evolution written by Polychronis Papaderos and published by Springer Science & Business Media. This book was released on 2012-04-23 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dwarf galaxy research constitutes an extremely vibrant field of astrophysical research, with many long-standing questions still unsettled and new ones constantly arising. The intriguing diversity of the dwarf galaxy population, observed with advanced ground-based and space-borne observatories over a wide spectral window providing an unprecedented level of detail, poses new challenges for both observers and theoreticians. The aim of this symposium was to bring together these two groups to exchange ideas and new results on the many evolutionary aspects of and open issues concerning dwarf galaxies. The main topics addressed include: the birth of dwarf galaxies: theoretical concepts and observable relics across wavelengths and time, the morphological, structural and chemical evolution of dwarf galaxies, possible evolutionary connections between early-type and late-type dwarfs, the star formation history of dwarf galaxies and its dependence on intrinsic and environmental properties, the origin and implications of starburst activity in dwarf galaxies, the fate of dwarfish systems born out of tidally ejected matter in galaxy collisions.

Planets, Stars and Stellar Systems

Author : Gerard Gilmore
Publisher : Springer
ISBN 13 : 9789400756113
Total Pages : 0 pages
Book Rating : 4.7/5 (561 download)

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Book Synopsis Planets, Stars and Stellar Systems by : Gerard Gilmore

Download or read book Planets, Stars and Stellar Systems written by Gerard Gilmore and published by Springer. This book was released on 2013-02-23 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is volume 5 of Planets, Stars and Stellar Systems, a six-volume compendium of modern astronomical research, covering subjects of key interest to the main fields of contemporary astronomy. This volume on “Galactic Structure and Stellar Populations”, edited by Gerard F. Gilmore, presents accessible review chapters on Stellar Populations, Chemical Abundances as Population Tracers, Metal-Poor Stars and the Chemical Enrichment of the Universe, The Stellar and Sub-Stellar Initial Mass Function of Simple and Composite Populations, The Galactic Nucleus, The Galactic Bulge, Open Clusters and Their Role in the Galaxy, Star Counts and the Nature of Galactic Thick Disk, The Infrared Galaxy, Interstellar PAHs and Dust, Galactic Neutral Hydrogen, High-Velocity Clouds, Magnetic Fields in Galaxies, Astrophysics of Galactic Charged Cosmic Rays, Gamma-Ray Emission of Supernova Remnants and the Origin of Galactic Cosmic Rays, Galactic Distance Scales, Globular Cluster Dynamical Evolution, Dynamics of Disks and Warps, Mass Distribution and Rotation Curve in the Galaxy, Dark Matter in the Galactic Dwarf Spheroidal Satellites, and History of Dark Matter in Galaxies. All chapters of the handbook were written by practicing professionals. They include sufficient background material and references to the current literature to allow readers to learn enough about a specialty within astronomy, astrophysics and cosmology to get started on their own practical research projects. In the spirit of the series Stars and Stellar Systems published by Chicago University Press in the 1960s and 1970s, each chapter of Planets, Stars and Stellar Systems can stand on its own as a fundamental review of its respective sub-discipline, and each volume can be used as a textbook or recommended reference work for advanced undergraduate or postgraduate courses. Advanced students and professional astronomers in their roles as both lecturers and researchers will welcome Planets, Stars and Stellar Systems as a comprehensive and pedagogical reference work on astronomy, astrophysics and cosmology.

Fundamentals of Galaxy Dynamics, Formation and Evolution

Author : Ignacio Ferreras
Publisher : UCL Press
ISBN 13 : 1911307614
Total Pages : 200 pages
Book Rating : 4.9/5 (113 download)

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Book Synopsis Fundamentals of Galaxy Dynamics, Formation and Evolution by : Ignacio Ferreras

Download or read book Fundamentals of Galaxy Dynamics, Formation and Evolution written by Ignacio Ferreras and published by UCL Press. This book was released on 2019-04-02 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Spectral Evolution of Galaxies

Author : C. Chiosi
Publisher : Springer Science & Business Media
ISBN 13 : 9400945981
Total Pages : 481 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis Spectral Evolution of Galaxies by : C. Chiosi

Download or read book Spectral Evolution of Galaxies written by C. Chiosi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: As it was said by one of the participants to this workshop" In our attempts to understand the spectral evolution of galaxies, we are fortunate indeed to have the ability to look back in time and observe galaxies as they were billions of years ago. Perhaos in no other discipline is it possible to gain such a direct view to hJstory. The galaxies we seek to study are remote, their light faint, and thus only recently has it become technicaJlv feasible to sample the spectra of normal luminosity galaxies at lookback times of five billion years or more" .... or, perhaps. even to see galaxies in the process of their formation. or shortly afterwards. This fourth workshop organized by the "Advanced School ot Astronomy was indeed centered on the "Spectral Evolution of Galaxies". on reviewing and discussing the relevant astrophysical processes and on assessing our current ability to model and understand the evolution of stellar populations. Following an opening session dealing with some outstanding questions of galaxy evolution. Session I addressed the specific problems of galaxy and star formation processes. topics of uncertainty and controversy to which IRAS observations may give novel perspectives. The properties of stellar populations in the local group of galaxies formed the basis of Session II. Session III dealt with the fundaments of the theory of spectral and photometrical evolution of stellar populations. and with recent developments in the theory of stellar structure. a necessary step to model and understand galactic evolution.

Advances in Stellar Evolution

Author : Robert T. Rood
Publisher : Cambridge University Press
ISBN 13 : 9780521591843
Total Pages : 368 pages
Book Rating : 4.5/5 (918 download)

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Book Synopsis Advances in Stellar Evolution by : Robert T. Rood

Download or read book Advances in Stellar Evolution written by Robert T. Rood and published by Cambridge University Press. This book was released on 1997-06-26 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: An understanding of how stars evolve is central to astrophysics. The basic theory is well established. However, the subject has undergone a renaissance in recent years as powerful computers have become widely available and allowed complex evolutionary models to be developed and compared in great detail with observations from the latest instruments. This timely volume presents the review articles from an international meeting in Elba, Italy, where experts gathered to review how our understanding of stellar evolution has advanced. Topics covered include fundamentals of stellar evolution, star clusters, variable stars, asymptotic giant branch stars, degenerate stars, the evolution of binary stars, and chemical and galactic evolution. Throughout, theory and observation are closely compared. The book also emphasises the critical role stars have on our understanding of how galaxies evolve. In this book we are provided with both the fundamentals and the latest research. In this way, it will provide an invaluable supplement for graduate students, and a timely review for researchers.

The Evolution of The Milky Way

Author : F. Matteucci
Publisher : Springer Science & Business Media
ISBN 13 : 9780792366799
Total Pages : 644 pages
Book Rating : 4.3/5 (667 download)

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Book Synopsis The Evolution of The Milky Way by : F. Matteucci

Download or read book The Evolution of The Milky Way written by F. Matteucci and published by Springer Science & Business Media. This book was released on 2000 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: This review of the most up-to-date observational and theoretical information concerning the chemical evolution of the Milky Way compares the abundances derived from field stars and clusters, giving information on the abundances and dynamics of gas.

The Stars

Author : Roger John Tayler
Publisher : Cambridge University Press
ISBN 13 : 9780521458856
Total Pages : 260 pages
Book Rating : 4.4/5 (588 download)

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Book Synopsis The Stars by : Roger John Tayler

Download or read book The Stars written by Roger John Tayler and published by Cambridge University Press. This book was released on 1994-06-23 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text examines how knowledge of many branches of physics can help provide an understanding of the structure and evolution of stars. Topics covered include: observational properties of stars, equations that govern their structure and recent theoretical work on stellar evolution.

Chemical Evolution of Galaxies

Author : Francesca Matteucci
Publisher : Springer Science & Business Media
ISBN 13 : 3642224911
Total Pages : 237 pages
Book Rating : 4.6/5 (422 download)

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Book Synopsis Chemical Evolution of Galaxies by : Francesca Matteucci

Download or read book Chemical Evolution of Galaxies written by Francesca Matteucci and published by Springer Science & Business Media. This book was released on 2012-01-05 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: The term “chemical evolution of galaxies” refers to the evolution of abundances of chemical species in galaxies, which is due to nuclear processes occurring in stars and to gas flows into and out of galaxies. This book deals with the chemical evolution of galaxies of all morphological types (ellipticals, spirals and irregulars) and stresses the importance of the star formation histories in determining the properties of stellar populations in different galaxies. The topic is approached in a didactical and logical manner via galaxy evolution models which are compared with observational results obtained in the last two decades: The reader is given an introduction to the concept of chemical abundances and learns about the main stellar populations in our Galaxy as well as about the classification of galaxy types and their main observables. In the core of the book, the construction and solution of chemical evolution models are discussed in detail, followed by descriptions and interpretations of observations of the chemical evolution of the Milky Way, spheroidal galaxies, irregular galaxies and of cosmic chemical evolution. The aim of this book is to provide an introduction to students as well as to amend our present ideas in research; the book also summarizes the efforts made by authors in the past several years in order to further future research in the field.