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Astrophysical Ages And Dating Methods
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Book Synopsis Astrophysical Ages and Dating Methods by : Elisabeth Vangioni-Flam
Download or read book Astrophysical Ages and Dating Methods written by Elisabeth Vangioni-Flam and published by Atlantica Séguier Frontières. This book was released on 1990 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Age-Dating Stars by : Maurizio Salaris
Download or read book Age-Dating Stars written by Maurizio Salaris and published by CRC Press. This book was released on 2021-05-25 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: The determination of stellar ages has been - and still is - crucial for the development of our understanding of the universe, and to constrain theoretical models for the formation of galaxies and the evolution of planetary systems. Stellar ages provide scientists with timescales, and these timescales allow us to identify the relevant physical processes responsible for the development of cosmic structures. This book describes in a simple, yet rigorous, manner the vast array of techniques that have been developed and are currently being used to determine the ages of stars. It also explores how stellar ages inform our knowledge about planets, star clusters, galaxies, even distant galaxies that we cannot resolve into individual stars. Up-to-date with the latest research and technologies in the field, it includes the cutting-edge methods being used based on asteroseismology and discusses open problems that remain to be pondered in future research. It will be of interest to advanced undergraduates and graduate students studying astronomy, in addition to the general public. Key Features Presents an entertaining and accessible approach whilst also providing a rigorous and comprehensive presentation of the subject Describes how to unveil the ages of stellar populations in distant galaxies that we cannot resolve into individual stars Contains historical notes about these techniques, outstanding major problems, and a discussion on future developments in the field
Book Synopsis Astrophysical Formulae by : Kenneth Lang
Download or read book Astrophysical Formulae written by Kenneth Lang and published by Springer Science & Business Media. This book was released on 2006-02-22 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: This classic reference for the fundamental formulae of physics and astrophysics has become part of nearly every astronomers and astrophysicists library. "A magnificent compendium" - OPTICA ACTA (ON THE FIRST EDITION)
Book Synopsis Pulsation, Rotation and Mass Loss in Early-Type Stars by : Luis A. Balona
Download or read book Pulsation, Rotation and Mass Loss in Early-Type Stars written by Luis A. Balona and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this Symposium, researchers specializing in pulsation, rotation, magnetic fields and stellar winds are brought together for the first time in order to broaden our understanding of O and B stars. Thanks to advances in digital spectroscopy, new types of pulsating B stars have been discovered. The pulsations can be understood in terms of the recent revision of metal opacities, but the effects of rapid rotation and magnetic fields need further study. Observations in the UV and X-ray regions demonstrate that many B and Be stars show other activity, besides pulsation which is not yet understood. The reason for the enhanced mass loss in Be stars is a question which dominates the Symposium and which remains unanswered, although it is surely to be found in activity at or near the photosphere coupled with rotation. It is shown that the geometry of the circumstellar envelopes around Be stars is indeed a flattened disk as they can now be optically resolved. The variability of radiatively-driven winds from O and B stars are likely related to the rotation of the star. This underlines the central theme of the book: that the various phenomena seen in these stars cannot be studied in isolation.
Book Synopsis Astronomy and Astrophysics by : S. Joardar
Download or read book Astronomy and Astrophysics written by S. Joardar and published by Jones & Bartlett Learning. This book was released on 2008-04-15 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is designed for upper division courses in astronomy and as a reference for science professionals. The subject areas of astronomy and astrophysics have grown tremendously during the last few decades. New developments in radio astronomy and recent data retrieved from NASAs Hubble Space Telescope have resulted in many discoveries and created new interest in the study of the universe. Using four-color throughout, Astronomy & Astrophysics describes the different techniques and instruments employed in the study of the universe and the results obtained with discussion on both theory and observation. The book covers topics such as, minor planets, radio astronomy, astronomical telescopes, measurement of solar brightness distribution, black holes, and the Einstein effect. A CD-ROM with color figures and simulations accompanies the book.
Book Synopsis Angular Momentum and Mass Loss for Hot Stars by : L.A. Willson
Download or read book Angular Momentum and Mass Loss for Hot Stars written by L.A. Willson and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamental unsolved problems of stellar astrophysics include the effects of angular momentum on stellar structure and evolution, the nature and efficiency of the processes by which angular momentum is redistributed within and lost from stars, and the role that stellar rotation plays in enhancing or driving stellar mass loss. There appears to be a qualitative change in the nature and efficiency of these mechanisms near spectral type FO: hotter (more massive) stars typically retain more angular momentum at least until they reach the main sequence, while cooler stars typically spin down quickly. For the hotter stars, recent work suggests a strong link between the type of pulsation behavior, the mass loss rates, and the rotation velocity. If the same mechanisms are able to drive mass loss from the main sequence A stars, as has recently been proposed, then the current interpretations of a number of observations will be drastically affected: e. g. the ages of clusters may be incorrect by up to a factor of two, and the surface abundances of isotopes of He, Li and Be may no longer give constraints on cosmological nucleosynthesis. There are also effects on the evolution of the abundances of elements in the interstellar medium and on the general evolution of populations of stars. Thus the questions of the mechanisms of angular momentum and mass loss of stars more massive than the sun is important not only for stellar studies but for the foundations of much of modern astrophysics.
Book Synopsis The Impact of Space Experiments on Our Knowledge of the Physics of the Universe by : Franco Giovannelli
Download or read book The Impact of Space Experiments on Our Knowledge of the Physics of the Universe written by Franco Giovannelli and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Space experiments have opened practically all electromagnetic windows on the Universe. A discussion of the most important results obtained with multi-frequency photonic astrophysics experiments will provide new input to advance our knowledge of physics, very often in its more extreme conditions. A multitude of high quality data across the whole electromagnetic spectrum came at the scientific community's disposal a few years after the beginning of the Space Era. With these data we are attempting to explain the physics governing the Universe and its origin, which continues to be a matter of the greatest curiosity for humanity. In this book we describe the latest steps of the investigations born with the advent of space experiments. We highlight the most important results, identify unsolved problems, and comment on perspectives we can reasonably expect. This book aims to provide a useful tool for the reader who is not specialized in space astrophysics and for students. Therefore, the book is written in the form of a review with a still reasonable length, taking into account the complexity of the arguments discussed. We do not claim to present a complete picture of the physics governing the Universe, but have rather selected particular topics for a more thorough discussion. A cross section of essays on historical, modern, and philosophical topics is offered and combined with personal views into tricks of the space astrophysics trade.
Download or read book Fermilab Report written by and published by . This book was released on 1989 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recent Advances In The Superworld - Proceedings Of The International Workshop by : J L Lopez
Download or read book Recent Advances In The Superworld - Proceedings Of The International Workshop written by J L Lopez and published by World Scientific. This book was released on 1994-03-29 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: The realization that precision LEP data lend support to the idea of supersymmetric grand unification and supersymmetry in general, led to the organization of the First HARC International Workshop on Recent Advances in the SuperWorld. The idea was to have a workshop that discussed all aspects of the supersymmetric world — the SuperWorld as it should be properly known. These aspects are so diverse that they are usually studied by high energy physicists with vastly different interests. The selection of speakers included the whole spectrum in 'energy', from experimental physicists, to specialists in low energy phenomenology, supersymmetric grand unification, supergravity, superstrings and supercosmology.
Book Synopsis Supernovae and Nucleosynthesis by : David Arnett
Download or read book Supernovae and Nucleosynthesis written by David Arnett and published by Princeton University Press. This book was released on 2020-11-10 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book investigates the question of how matter has evolved since its origin in the Big Bang, from the cosmological synthesis of hydrogen and helium to the generation of the complex set of nuclei that comprise our world and our selves. A central theme is the evolution of gravitationally contained thermonuclear reactors, otherwise known as stars. Our current understanding is presented systematically and quantitatively, by combining simple analytic models with new state-of-the-art computer simulations. The narrative begins with the clues (primarily the solar system abundance pattern), the constraining physics (primarily nuclear and particle physics), and the thermonuclear burning in the Big Bang itself. It continues with a step-by-step description of how stars evolve by nuclear reactions, a critical investigation of supernova explosion mechanisms and the formation of neutron stars and of black holes, and an analysis of how such explosions appear to astronomers (illustrated by comparison with recent observations). It concludes with a synthesis of these ideas for galactic evolution, with implications for nucleosynthesis in the first generation of stars and for the solar system abundance pattern. Emphasis is given to questions that remain open, and to active research areas that bridge the disciplines of astronomy, cosmochemistry, physics, and planetary and space science. Extensive references are given.
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.
Book Synopsis Subatomic Physics: An Introduction To Nuclear And Particle Physics, And Astrophysics by : Ioannis John Demetrius Vergados
Download or read book Subatomic Physics: An Introduction To Nuclear And Particle Physics, And Astrophysics written by Ioannis John Demetrius Vergados and published by World Scientific. This book was released on 2020-12-22 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended for undergraduate or beginning graduate students. The net outcome is material to cover one integrated course on Nuclear and Particle Physics as well as Astrophysics.There are many advantages in teaching all these subjects together as they have become increasingly inseparable. From a theoretical point of view, understanding the similarities between atoms, nuclei and other hadrons and applying analogs from one to the other have been very effective in research and they have led to the development of all these fields. From an experimental point of view, a high energy experimentalist must understand nuclear physics, if he or she wants to construct new devices, like detectors, etc., appropriate for observing new high energy phenomena. Furthermore, an understanding of certain areas of astrophysics and the physics of the cosmos, demands a good grasp of both nuclear and particle physics.This book is intended as a menu from which the reader can pick material according to his or her taste and interests. The authors inserted proper cross references to make a specific selection by the reader from this menu as easily digestible as possible. The authors supplied sets of problems with varying degree of complexity, accompanied by hints or a sketch of the solution, if needed, in most chapters.
Book Synopsis Particle Physics and the Universe by : Lars Bergstrm
Download or read book Particle Physics and the Universe written by Lars Bergstrm and published by World Scientific. This book was released on 2001 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is generally felt in the cosmology and particle astrophysics community that we have just entered an era which later can only be looked back upon as a golden age. Thanks to the rapid technical development, with powerful new telescopes and other detectors taken into operation at an impressive rate, and the accompanying advancement of theoretical ideas, the picture of the past, present and future Universe is getting ever clearer. Some of the most exciting new findings and expected future developments are discussed in this invaluable volume. The topics covered include the physics of the early Universe and ultra-high energy processes. Emphasis is also put on neutrino physics and astrophysics, with the evidence for non-zero neutrino masses emerging from both solar neutrinos and atmospheric neutrinos covered in great depth. Another field with interesting new results concerns the basic cosmological parameters, where both traditional methods and the potential of new ones, like deep supernova surveys and acoustic peak detections in the cosmic microwave background, are thoroughly discussed. Various aspects of the dark matter problem, such as gravitational lensing estimates of galaxy masses, cluster evolution and hot cluster electron distortions of the thermal microwave background spectrum, are also discussed, as are particle physics candidates of dark matter and methods to detect them. Cosmic rays of matter and antimatter are included as a topic, and so is the problem of the enigmatic dark energy of the vacuum.
Book Synopsis Visual Double Stars: Formation, Dynamics and Evolutionary Tracks by : J.A. Docobo
Download or read book Visual Double Stars: Formation, Dynamics and Evolutionary Tracks written by J.A. Docobo and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: This workshop is devoted to Double stars. The general topics of the meeting were: for mation, dynamics and evolutionary tracks. In accordance with the pure tradition of the Saint James way, "pilgrims" from all over the world come to meet together in Santiago. Although with a common interest (double stars), this meeting was a multidisciplinary one, since scientists with different backgrounds participated in it. As a matter of fact, we think that this is the first workshop jointly supported by IAU Commissions 7 (Celestial mechanics) and 26 (Double and multiple stars). It is our belief that this meeting will be the origin of a more close relations and common research. This meeting was held under the invitation of the University of Santiago de Compostela to commemorate its fifth centenary, and organized by the Astronomical Observatory named after its founder, Ramon M. Aller, who made significant contributions in the study of visual double stars, and was one of the pioneers who put the seeds of the present blossoming of Astronomy in Spain. The Scientific Organizing Committee was formed by Drs. C. Allen, P. Couteau, J. A. Docobo, R. Dvorak, A. Elipe, S. Ferraz-Mello (co-chairman), H.A.McAlister, M. Valtonen, C.Worley (chairman) and H. Zinnecker. The Local Organizing Committee was formed by Drs. J. A. Docobo (chairman), A.
Book Synopsis Buidling Blocks Of Creation, The: From Microfermis To Megaparsecs - Proceedings Of The 1993 Theoretical Advanced Study Institute In Elementary Particle Physics (Tasi 1993) by : Stuart Raby
Download or read book Buidling Blocks Of Creation, The: From Microfermis To Megaparsecs - Proceedings Of The 1993 Theoretical Advanced Study Institute In Elementary Particle Physics (Tasi 1993) written by Stuart Raby and published by World Scientific. This book was released on 1994-10-10 with total page 623 pages. Available in PDF, EPUB and Kindle. Book excerpt: Particle physics and cosmology are united in the standard hot big bang model. This volume contains pedagogical lectures on the experimental and theoretical status of the standard models of particle physics and cosmology as well as their extensions, with an overall focus on the strong interplay between these two fields.
Book Synopsis First Light in the Universe by : Brigitte Rocca-Volmerange
Download or read book First Light in the Universe written by Brigitte Rocca-Volmerange and published by Atlantica Séguier Frontières. This book was released on 1993 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Astrophysical Formulae by : Kenneth R. Lang
Download or read book Astrophysical Formulae written by Kenneth R. Lang and published by Springer. This book was released on 2013-12-21 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a definitive reference of 2,100 fundamental formulae used in astronomy and astrophysics. It not only makes accessible all the indispensable equations employed in the field, but also carefully explains the physical assumptions and constants underlying them. The bibliography contains more than 1,900 citations of original papers. Accounting for nearly 20 years since the previous edition, this volume is significantly revised and expanded.