Download or read book Galactic Halos written by Dennis Zaritsky and published by . This book was released on 1998 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shapes Of Galaxies And Their Dark Halos The Proceedings Of The Yale Cosmology Workshop written by Priyamvada Natarajan and published by World Scientific. This book was released on 2002-03-28 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of a very topical workshop aimed at understanding the shapes of the baryonic and dark matter components of galaxies. Several groups presented their recent results from observations and numerical N-body simulations.
Download or read book Cosmic Questions written by Richard Morris and published by John Wiley & Sons. This book was released on 1993-10-08 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Morris draws on a multitude of startling new discoveries and theories in the field of cosmology and tackles 10 of the longest-standing and most captivating problems in all of science. Cosmic Questions offers clear explanations of the best current answers to each question.
Download or read book Spiral density waves and galactic halos written by Charalabos K. Terzides and published by . This book was released on 1978 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Physics of Galactic Halos written by Harald Lesch and published by Wiley-VCH. This book was released on 1997-04-21 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains new observational results which help to illuminate the hydrodynamic and the magnetohydrodynamic interactions between the disk and the halo of our galaxy and other galaxies. It discusses how the recent discovery of an x-ray corona of our galaxy and the revelation of its x-ray emission's impact on intergalactic gas clouds has motivated the development of new theoretical models. It explores these are models for galactic winds, galactic fountains, acceleration of low-energy cosmic ray particles in turbulent velocity fields, magnetic reconnection in the boundary layers of colliding interstellar gas clouds, and complete evolutionary scenarios for galactic halos.
Download or read book The Physics of Galactic Halos written by Harald Lesch and published by Wiley-VCH. This book was released on 1997-04-21 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book contains new observational results which help to illuminate the hydrodynamic and the magnetohydrodynamic interactions between the disk and halo of our Galaxy and other galaxies from various aspect angles. In particular, the recent discovery of an X-ray corona of our Galaxy and the relation of its X-ray emission to observed impacts of intergalactic gas clouds onto the gaseous galactic disk has motivated the development of new theoretical models. Among these are models for galactic winds, galactic fountains, acceleration of low-energy cosmic ray particles in turbulent velocity fields, magnetic reconnection in the boundary layers of colliding interstellar gas clouds and complete evolutionary scenarios for galactic halos. Finally, the book contains the most up-to-date information about the very popular subject of halo research, the illusive dark matter and the different ways in which dark matter may be hiding from us.
Download or read book Literature 1981 Part 1 written by Siegfried Böhme and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Galactic and Intergalactic Magnetic Fields written by R. Beck and published by Springer Science & Business Media. This book was released on 1990-04-30 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Symposium, the first devoted entirely to the measurement and the role of magnetic fields in the non-solar Universe, was held in Heidelberg, on June 19-23, 1989. The meeting began with review talks on magnetic phenomena near the solar photosphere, corona, and in stellar winds, since these nearby "laboratories", studied for many years, provide much of the prior knowl edge of magnetic effects in astrophysical plasmas. The Symposium contained presentations of considerable new work concerning the role of magnetic fields in accretion disks, bipolar outflows, and related magnetic phenomena in molecular clouds and star forming regions. Both observa tions and related theory of the large-scale magnetic fields in the Milky Way were covered, in addition to a session on the more general theme of magnetohydrodynamics of galactic magnetic fields. Dynamo mechanisms were discussed in considerable detail. It was apparent that recent observational data on polarized emission from external galaxies are now of sufficiently high quality that meaningful tests of large-scale field amplification, and of ideas on the origin of galactic magnetic fields, can be undertaken. Both new observations and numerical simulation work were described in the context of active galaxy nuclei, supernova remnants, radio source jets and extended lobes, and also in the environment of galaxy clusters. Recent large-scale computer simulations incorporating magnetic fields in star formation, radio source jets, and many other phenomena were presented, and much of this was very new.
Download or read book The Role of Halo Substructure in Gamma Ray Dark Matter Searches written by Miguel A. Sánchez-Conde and published by MDPI. This book was released on 2020-05-28 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: An important, open research topic today is to understand the relevance that dark matter halo substructure may have for dark matter searches. In the standard cosmological model, halo substructure or subhalos are predicted to be largely abundant inside larger halos, for example, galaxies such as ours, and are thought to form first and later merge to form larger structures. Dwarf satellite galaxies—the most massive exponents of halo substructure in our own galaxy—are already known to be excellent targets for dark matter searches, and indeed, they are constantly scrutinized by current gamma-ray experiments in the search for dark matter signals. Lighter subhalos not massive enough to have a visible counterpart of stars and gas may be good targets as well, given their typical abundances and distances. In addition, the clumpy distribution of subhalos residing in larger halos may boost the dark matter signals considerably. In an era in which gamma-ray experiments possess, for the first time, the exciting potential to put to test the preferred dark matter particle theories, a profound knowledge of dark matter astrophysical targets and scenarios is mandatory should we aim for accurate predictions of dark matter-induced fluxes for investing significant telescope observing time on selected targets and for deriving robust conclusions from our dark matter search efforts. In this regard, a precise characterization of the statistical and structural properties of subhalos becomes critical. In this Special Issue, we aim to summarize where we stand today on our knowledge of the different aspects of the dark matter halo substructure; to identify what are the remaining big questions, and how we could address these; and, by doing so, to find new avenues for research.
Download or read book Primordial Nuclei and Their Galactic Evolution written by Nikos Prantzos and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present volume, the fourth one in the "Space Sciences Series of ISSI" (Inter national Space Science Institute), contains the proceedings of a workshop on "Pri mordial Nuclei and Their Galactic Evolution", which was held at ISSI in Bern on 6-10 May 1997. This topic was chosen following some general enquiries with the scientific community concerning its desirability and timeliness. Five convenors, D. Duncan, C. Hogan, J. Linsky, N. Prantzos, and H. Reeves (chair) subsequently set up the workshop, nominated a list of invitees, structured the workshop into a series of introductory talks and into six topical working groups (early Universe extragalactic objects -low-Z stars - galactic disk and galactic evolution - solar nebula -local interstellar medium), and described the tasks of the working groups in a list of keywords. It is the main task of ISSI to bring together space scientists, ground-based observers, and theorists from different fields and to give them the opportunity to discuss and compare their results, thus contributing to the achievement of a deeper understanding, adding value to those results through multi-disciplinary research in an atmosphere of international co-operation. In that spirit the convenors selected participants working in fields ranging from Big Bang theory to observers oftoday's Solar System, thus spanning the widest possible range both in time and space.
Download or read book The General Assembly of Galaxy Halos IAU S317 written by Angela Bragaglia and published by Cambridge University Press. This book was released on 2016-06-09 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings of IAU S317 offer an updated view of the stellar halos of galaxies, from the local universe to more distant systems, discussing differences and similarities among them. They review the results of ongoing large photometric and spectroscopic surveys and compare them to the predictions of new generation simulations at the forefront of our technical capabilities. Structures are analysed on both large and small scales, with attention given to the kinematical and chemical properties of their smallest and oldest components. A number of excellent reviews on state-of-the-art research, covering fields such as first stars, galactic archaeology, stellar halos in cosmological simulations, discrete constituents of stellar halos - from field, isolated stars to globular clusters and planetary nebulae - are accompanied by contributed papers presenting the results of original research by top-level specialists in the area. IAU S317 benefits researchers with interests encompassing stellar and galactic astrophysics and galaxy evolution.
Download or read book Hot Stars in the Galactic Halo written by Saul J. Adelman and published by Cambridge University Press. This book was released on 1994-08-25 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: The stars that comprise a halo around our Galaxy are intriguing; they have abundances of elements that suggest they are old. The properties of these "hot stars" and similar stars in other galaxies challenge the current, well-established theory of stellar evolution in many ways. In this book, experts contribute up-to-date and comprehensive reviews of the major topics in the field. They study the collective properties of these stars that provide important revelations for many areas of astrophysics--including how our Galaxy was formed. The contributors also reveal the exciting renaissance occurring in their studies owing to important new observations with the Hubble Space Telescope and ASTRO1 and to techniques recently developed for ground-based observations. Advances in computers have also recently led to a far more detailed and complete theoretical understanding of stellar evolution. This book will be of interest to researchers and graduate students in astronomy and astrophysics.
Download or read book Inflationary Cosmology written by L. F. Abbott and published by World Scientific. This book was released on 1986 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inflation has revolutionized cosmology primarily because it has eliminated the dependence of cosmological modelling on initial conditions. Thus inflationary cosmology is able to account for the present universe starting from a wide range of initial conditions. This volume reviews the presents state of subject. Each chapter consists of a brief introduction followed by reprints of important papers. Experts in the field are also provided with a unifying view point.
Download or read book Magnetic Fields in Galaxies written by F. Krause and published by CRC Press. This book was released on 1990 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents the proceedings of the Workshop on Magnetic Fields in Galaxies, which was held in Potsdam (GDR) in the autumn of 1988.
Download or read book Starbursts and Galaxy Evolution written by Xuan Thuan Trinh and published by Atlantica Séguier Frontières. This book was released on 1987 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Galactic Dynamics written by James Binney and published by Princeton University Press. This book was released on 2011-10-30 with total page 902 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since it was first published in 1987, Galactic Dynamics has become the most widely used advanced textbook on the structure and dynamics of galaxies and one of the most cited references in astrophysics. Now, in this extensively revised and updated edition, James Binney and Scott Tremaine describe the dramatic recent advances in this subject, making Galactic Dynamics the most authoritative introduction to galactic astrophysics available to advanced undergraduate students, graduate students, and researchers. Every part of the book has been thoroughly overhauled, and many sections have been completely rewritten. Many new topics are covered, including N-body simulation methods, black holes in stellar systems, linear stability and response theory, and galaxy formation in the cosmological context. Binney and Tremaine, two of the world's leading astrophysicists, use the tools of theoretical physics to describe how galaxies and other stellar systems work, succinctly and lucidly explaining theoretical principles and their applications to observational phenomena. They provide readers with an understanding of stellar dynamics at the level needed to reach the frontiers of the subject. This new edition of the classic text is the definitive introduction to the field. ? A complete revision and update of one of the most cited references in astrophysics Provides a comprehensive description of the dynamical structure and evolution of galaxies and other stellar systems Serves as both a graduate textbook and a resource for researchers Includes 20 color illustrations, 205 figures, and more than 200 problems Covers the gravitational N-body problem, hierarchical galaxy formation, galaxy mergers, dark matter, spiral structure, numerical simulations, orbits and chaos, equilibrium and stability of stellar systems, evolution of binary stars and star clusters, and much more Companion volume to Galactic Astronomy, the definitive book on the phenomenology of galaxies and star clusters
Download or read book Formation of the Galactic Halo Inside and Out written by Heather Morrison and published by . This book was released on 1996 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
