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Author : Malcolm Gray
Publisher :
ISBN 13 :
Total Pages : 419 pages
Book Rating : 4.:/5 (19 download)
Download or read book Maser Sources in Astrophysics written by Malcolm Gray and published by . This book was released on 2012 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : M Elitzur
Publisher : Springer Science & Business Media
ISBN 13 : 9401123942
Total Pages : 363 pages
Book Rating : 4.4/5 (11 download)
Download or read book Astronomical Masers written by M Elitzur and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most spectacular discoveries of molecular astronomy has been the detection of maser emission. The same radiation that is generated in the laboratory only with elaborate, special equipment occurs naturally in interstellar space. This intense radiation probes the smallest structures that can be studied with radio telescopes. By a fortunate coincidence maser radiation is generated in both star forming regions and the envelopes of late-type stars. The early and late stages in the life of a star are considered to be the most interesting phases of stellar evolution. Maser emission has also been detected in external galaxies. This book provides an extensive coverage of the interstellar maser phenomenon. A precondition for maser action is departure from thermal equilibrium. The book therefore starts with a detailed coverage of the basic background concepts required for an understanding of line formation and radiative transfer. It goes on to describe the theoretical and phenomenological aspects of interstellar masers, their formation sites and the inversion mechanisms. The book will interest active researchers in astronomy and astrophysics as well as in other areas of physics. It is suitable as a textbook in a graduate course and will enable a graduate student to embark on research projects in this exciting area in particular, and molecular radio astronomy in general.
Author : International Astronomical Union. Symposium
Publisher : Cambridge University Press
ISBN 13 : 1107192455
Total Pages : 481 pages
Book Rating : 4.1/5 (71 download)
Download or read book Astrophysical Masers (IAU S336) written by International Astronomical Union. Symposium and published by Cambridge University Press. This book was released on 2018-09-13 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summarizes state of the art observations and theories pertaining to astrophysical masers and their environments, for graduate students and researchers.
Author : Malcolm Gray
Publisher : Cambridge University Press
ISBN 13 : 0521879809
Total Pages : 431 pages
Book Rating : 4.5/5 (218 download)
Download or read book Maser Sources in Astrophysics written by Malcolm Gray and published by Cambridge University Press. This book was released on 2012-04-26 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written for postgraduates and researchers, this is an up-to-date survey of astrophysical maser sources and their use as astronomical tools.
Author : International Astronomical Union. Symposium
Publisher : Cambridge University Press
ISBN 13 : 9780521874649
Total Pages : 564 pages
Book Rating : 4.8/5 (746 download)
Download or read book Astrophysical Masers and Their Environments (IAU S242) written by International Astronomical Union. Symposium and published by Cambridge University Press. This book was released on 2008-02-14 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: Astrophysical masers, naturally occurring microwave and radio-wave emissions, provide an important tool to investigate astrophysical environments. Several thousand maser sources have been observed in the interstellar medium and star formation regions, in the expanding winds from evolved stars, in the compressed shells of supernovae remnants, in comets and in the centers of galaxies. Masers are also useful for studying the structure and dynamics of our own galaxy, while masers in other galaxies are now used for cosmological studies and studies of galactic nuclei. This volume contains the latest research on the topic as presented at IAU Symposium 242, only the third international symposium on astrophysical masers. Over 125 astronomers from 18 different countries gathered in Alice Spring, Australia, for discussions on maser research.
Author : Andrew W. Clegg
Publisher : Springer
ISBN 13 :
Total Pages : 508 pages
Book Rating : 4.3/5 (91 download)
Download or read book Astrophysical Masers written by Andrew W. Clegg and published by Springer. This book was released on 1993-03-10 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this volume the full range of astrophysical maser research is covered, with contributions from many of the foremost researchers in the field. The topics include masers in star-forming, circumstellar and extragalactic environments, solar system masers, newly discovered masing transitions, variability, proper-motion studies, and theory. Since this was the first ever conference devoted exclusively to astrophysical masers, these proceedings provide a reference for this field which has not previously been available. "Astrophysical Masers" will be useful both to those who wish to study the physics of masers, and to those who wish to better understand the astrophysically important regions with which they are associated.
Author : A. H. Cook
Publisher : CUP Archive
ISBN 13 : 9780521213448
Total Pages : 152 pages
Book Rating : 4.2/5 (134 download)
Download or read book Celestial Masers written by A. H. Cook and published by CUP Archive. This book was released on 1977-09 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Andrew W. Clegg
Publisher : Springer
ISBN 13 : 9783662139455
Total Pages : 480 pages
Book Rating : 4.1/5 (394 download)
Download or read book Astrophysical Masers written by Andrew W. Clegg and published by Springer. This book was released on 2014-03-12 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this volume the full range of astrophysical maser research is covered, with contributions from many of the foremost researchers in the field. The topics include masers in star-forming, circumstellar and extragalactic environments, solar system masers, newly discovered masing transitions, variability, proper-motion studies, and theory. Since this was the first ever conference devoted exclusively to astrophysical masers, these proceedings provide a reference for this field which has not previously been available. "Astrophysical Masers" will be useful both to those who wish to study the physics of masers, and to those who wish to better understand the astrophysically important regions with which they are associated.
Author : Eugene H. Avrett
Publisher : Harvard University Press
ISBN 13 : 9780674326590
Total Pages : 574 pages
Book Rating : 4.3/5 (265 download)
Download or read book Frontiers of Astrophysics written by Eugene H. Avrett and published by Harvard University Press. This book was released on 1976 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most vigorous sciences of our time, astrophysics constantly changes under the impact of new discoveries about everything from our own sun to the most distant and exotic of extragalactic phenomena. In chapters written especially for this volume, twelve distinguished scientists actively pursuing astrophysical research offer up-to-date reviews and commentary on new developments in their fields. With a little grounding in astronomy or physics, the reader will find this book an invaluable source of basic information on the most recent work in this field. Frontiers of Astrophysics can be used as classroom reading, either as a main text or as supplementary reading in astronomy or physics courses, and it can be read with profit by anyone who wants current knowledge presented without complex mathematical arguments. Published within months after the contributions were written, this book is the most convenient and contemporary source on these topics: formation of the solar system (W.R. Ward); new developments in solar research (R. W. Noyes); early phases of stellar evolution (S.E. Storm); endpoints of stellar evolution (A.G.W. Cameron); neutron stars, black holes and supernocvae (H. Gursky); infrared astronomy (G.G. Fazio); gaseous nebulae and their interstellar environment (E.K. Chaisson); chemistry of the interstellar medium (A. Dalgarno); radio observations of galactic masers (J.M. Moran): active galaxies (K. Brecher); galaxies and cosmology (M. Davis); the mass of the universe and intergalactic matter (G.B. Field).
Author :
Publisher : ScholarlyEditions
ISBN 13 : 146496369X
Total Pages : 2981 pages
Book Rating : 4.4/5 (649 download)
Download or read book Issues in Astronomy and Astrophysics: 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 2981 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Astronomy and Astrophysics / 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Astronomy and Astrophysics. The editors have built Issues in Astronomy and Astrophysics: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Astronomy and Astrophysics in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Astronomy and Astrophysics: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Author : George B. Rybicki
Publisher : John Wiley & Sons
ISBN 13 : 352761818X
Total Pages : 400 pages
Book Rating : 4.5/5 (276 download)
Download or read book Radiative Processes in Astrophysics written by George B. Rybicki and published by John Wiley & Sons. This book was released on 2008-09-26 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiative Processes in Astrophysics: This clear, straightforward, and fundamental introduction is designed to present-from a physicist's point of view-radiation processes and their applications to astrophysical phenomena and space science. It covers such topics as radiative transfer theory, relativistic covariance and kinematics, bremsstrahlung radiation, synchrotron radiation, Compton scattering, some plasma effects, and radiative transitions in atoms. Discussion begins with first principles, physically motivating and deriving all results rather than merely presenting finished formulae. However, a reasonably good physics background (introductory quantum mechanics, intermediate electromagnetic theory, special relativity, and some statistical mechanics) is required. Much of this prerequisite material is provided by brief reviews, making the book a self-contained reference for workers in the field as well as the ideal text for senior or first-year graduate students of astronomy, astrophysics, and related physics courses. Radiative Processes in Astrophysics also contains about 75 problems, with solutions, illustrating applications of the material and methods for calculating results. This important and integral section emphasizes physical intuition by presenting important results that are used throughout the main text; it is here that most of the practical astrophysical applications become apparent.
Author : Kevin Marvel
Publisher : Universal-Publishers
ISBN 13 : 1581120613
Total Pages : 526 pages
Book Rating : 4.5/5 (811 download)
Download or read book The Circumstellar Environment of Evolved Stars as Revealed by Studies of Circumstellar Water Masers written by Kevin Marvel and published by Universal-Publishers. This book was released on 1996-12 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dissertation presents the results of a multi-epoch very long baseline interferometric study of water masers located in the extended atmospheres of evolved stars. The research was performed using the Very Long Baseline Array and Very Large Array of the National Radio Astronomy Observatory. Optical monitoring of the stars was provided by the American Association of Variable Star Observers, the Variable Star Network and Dr. Bill Neely of the NF/Observatory. Water masers of found to exist in a region where a population inversion of the rotation transition of 22 GHz can be maintained by collisional pumping. The masers are identified as individual pockets of gas, which have the good velocity coherence and may be imaged using radio interferometry. Stellar winds are initiated in these sources by dust formation and acceleration of the gas through momentum coupling. The typical wind speeds in the region of the water masers are 10 to 20 km/s The water masers are followed through several epochs of observation and exhibit proper motions consistent with the assumed source distance and the measured outflow of velocity in the water maser region. Estimates of the distance to the sources using statistical approximation are in agreement with the currently accepted distances to the stars. A detailed kinematic model is used to describe the flow motions of the gas in the maser region. The regions are found to be complex and not well modeled by uniform radial outflow, radial outflow with rotation, or radial with acceleration. The reasons for this are explored and include anisotropic velocity fields induced through non-uniform dust formations near the star and incomplete sampling of the outflow due to a lack of detected masers. Possibilities for future work in the subject are described and include more sophisticated modeling, more sensitive observations, and analysis of other maser species.
Author : M. S. Longair
Publisher : Cambridge University Press
ISBN 13 : 9780521435840
Total Pages : 418 pages
Book Rating : 4.4/5 (358 download)
Download or read book High Energy Astrophysics: Volume 2, Stars, the Galaxy and the Interstellar Medium written by M. S. Longair and published by Cambridge University Press. This book was released on 1992 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: What role does viscosity play in accretion discs? How do you calculate the 'glitch function' of a pulsar? And can strong shocks account for the energy spectrum of electrons in our Galaxy? These are just some of the exciting questions that Professor Longair uses to develop the physics needed by the astronomer and high energy astrophysicist. The highly acclaimed first edition of High Energy Astrophysics instantly established itself as a classic in the teaching of contemporary astronomy. Reflecting the immense interest and developments in the subject, Professor Longair has developed the second edition into three texts; in this second volume he provides a comprehensive discussion of the high energy astrophysics of stars, the Galaxy and the interstellar medium. He develops an understanding for the essential physics with an elegance and infectious enthusiasm for which his teaching is internationally renowned, illustrating the issues throughout with results from forefront research. This book takes the student with a knowledge of physics and mathematics at the undergraduate level - but not necessarily with training in astronomy - to the point where current astronomical research can be understood.
Author : Robert C. Smith
Publisher : Cambridge University Press
ISBN 13 : 9780521278348
Total Pages : 472 pages
Book Rating : 4.2/5 (783 download)
Download or read book Observational Astrophysics written by Robert C. Smith and published by Cambridge University Press. This book was released on 1995-06-30 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combining a critical account of observational methods (telescopes and instrumentation) with a lucid description of the Universe, including stars, galaxies and cosmology, Smith provides a comprehensive introduction to the whole of modern astrophysics beyond the solar system. The first half describes the techniques used by astronomers to observe the Universe: optical telescopes and instruments are discussed in detail, but observations at all wavelengths are covered, from radio to gamma-rays. After a short interlude describing the appearance of the sky at all wavelengths, the role of positional astronomy is highlighted. In the second half, a clear description is given of the contents of the Universe, including accounts of stellar evolution and cosmological models. Fully illustrated throughout, with exercises given in each chapter, this textbook provides a thorough introduction to astrophysics for all physics undergraduates, and a valuable background for physics graduates turning to research in astronomy.
Author : Roy S. Booth
Publisher : Cambridge University Press
ISBN 13 : 9781107032842
Total Pages : 536 pages
Book Rating : 4.0/5 (328 download)
Download or read book Cosmic Masers - from OH to H0 (IAU S287) written by Roy S. Booth and published by Cambridge University Press. This book was released on 2012-08-15 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cosmic masers, naturally occurring amplifiers of microwave emission from atoms and molecules in the Milky Way and other galaxies, provide important tools to investigate astrophysical environments. The first, Hydroxyl (OH) masers were discovered in 1965 and since that time several thousand sources of maser emission, from a variety of cosmic molecules have been discovered and studied. Because this natural emission occurs at discrete frequencies, which depend upon specific atomic or molecular transitions, masers are also useful for studying the structure and dynamics of our own galaxy. Masers in other galaxies are now used for cosmological studies of the dynamics of massive black holes in galactic nuclei and to directly measure the Hubble constant, H0. This volume contains a comprehensive, up-to-date review of cosmic masers, their nature, sources, environments and uses, as presented at IAU Symposium 287, the fourth international symposium on cosmic masers.
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309183073
Total Pages : 400 pages
Book Rating : 4.3/5 (91 download)
Download or read book Astronomy and Astrophysics in the New Millennium written by National Research Council and published by National Academies Press. This book was released on 2002-01-07 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: In preparing the report, Astronomy and Astrophysics in the New Millenium , the AASC made use of a series of panel reports that address various aspects of ground- and space-based astronomy and astrophysics. These reports provide in-depth technical detail. Astronomy and Astrophysics in the New Millenium: An Overview summarizes the science goals and recommended initiatives in a short, richly illustrated, non-technical booklet.
Author : F. Curtis Michel
Publisher : University of Chicago Press
ISBN 13 : 9780226523316
Total Pages : 548 pages
Book Rating : 4.5/5 (233 download)
Download or read book Theory of Neutron Star Magnetospheres written by F. Curtis Michel and published by University of Chicago Press. This book was released on 1991 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: An incomparable reference for astrophysicists studying pulsars and other kinds of neutron stars, Theory of Neutron Star Magnetospheres sums up two decades of astrophysical research. It provides in one volume the most important findings to date on this topic, essential to astrophysicists faced with a huge and widely scattered literature. F. Curtis Michel, who was among the first theorists to propose a neutron star model for radio pulsars, analyzes competing models of pulsars, radio emission models, winds and jets from pulsars, pulsating X-ray sources, gamma-ray burst sources, and other neutron-star driven phenomena. Although the book places primary emphasis on theoretical essentials, it also provides a considerable introduction to the observational data and its organization. Michel emphasizes the problems and uncertainties that have arisen in the research as well as the considerable progress that has been made to date.
