Download or read book Sunquakes written by J. B. Zirker and published by JHU Press. This book was released on 2003-10-29 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most recent and exciting branches of astronomy, helioseismology—like its terrestrial counterpart—studies why the surface of the sun vibrates like a bell. Over the past three decades astronomers have gained spectacular insights into the structure and composition of the sun's interior, transforming the way we understand stellar matter. In Sunquakes, Jack B. Zirker tells the story of this new science and explains the physics behind these illuminating vibrations. Zirker recounts the discovery of solar oscillations in the early 1960s and international efforts throughout the rest of the decade to explain this phenomenon. By the mid-1970s, scientists working independently in France, Germany, Japan, and the U.S. had developed a new theoretical model of the sun that postulated the existence of trapped sound and gravity waves as the cause for the roiling of the sun's surface. Using solar oscillation data, scientists derived for the first time the thermal and dynamic properties of the solar interior and revealed its complicated rotation patterns; even such astronomical mysteries as the deficit of solar neutrinos were solved. Describing the competition and cooperation between astronomers, particle physicists, and other theorists to the technological innovations that makes solar observation more and more precise, Sunquakes provides professionals and nonscientists alike with an absorbing and accessible guide to the field of helioseismology. The book concludes with an account of recent efforts to probe the interiors of stars far beyond our own solar system.
Download or read book Sunquakes written by J. B. Zirker and published by JHU Press. This book was released on 2003-10-29 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most recent and exciting branches of astronomy, helioseismology—like its terrestrial counterpart—studies why the surface of the sun vibrates like a bell. Over the past three decades astronomers have gained spectacular insights into the structure and composition of the sun's interior, transforming the way we understand stellar matter. In Sunquakes, Jack B. Zirker tells the story of this new science and explains the physics behind these illuminating vibrations. Zirker recounts the discovery of solar oscillations in the early 1960s and international efforts throughout the rest of the decade to explain this phenomenon. By the mid-1970s, scientists working independently in France, Germany, Japan, and the U.S. had developed a new theoretical model of the sun that postulated the existence of trapped sound and gravity waves as the cause for the roiling of the sun's surface. Using solar oscillation data, scientists derived for the first time the thermal and dynamic properties of the solar interior and revealed its complicated rotation patterns; even such astronomical mysteries as the deficit of solar neutrinos were solved. Describing the competition and cooperation between astronomers, particle physicists, and other theorists to the technological innovations that makes solar observation more and more precise, Sunquakes provides professionals and nonscientists alike with an absorbing and accessible guide to the field of helioseismology. The book concludes with an account of recent efforts to probe the interiors of stars far beyond our own solar system.
Download or read book Extraterrestrial Seismology written by Vincent C. H. Tong and published by Cambridge University Press. This book was released on 2015-06-25 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seismology is a highly effective tool for investigating the internal structure of the Earth. Similar techniques have also successfully been used to study other planetary bodies (planetary seismology), the Sun (helioseismology), and other stars (asteroseismology). Despite obvious differences between stars and planetary bodies, these disciplines share many similarities and together form a coherent field of scientific research. This unique book takes a transdisciplinary approach to seismology and seismic imaging, reviewing the most recent developments in these extraterrestrial contexts. With contributions from leading scientists, this timely volume systematically outlines the techniques used in observation, data processing, and modelling for asteroseismology, helioseismology, and planetary seismology, drawing comparisons with seismic methods used in geophysics. Important recent discoveries in each discipline are presented. With an emphasis on transcending the traditional boundaries of astronomy, solar, planetary and Earth sciences, this novel book is an invaluable resource and reference for undergraduates, postgraduates and academics.
Download or read book The Sun from Space written by Kenneth R. Lang and published by Springer Science & Business Media. This book was released on 2013-04-18 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive account of solar astrophysics and how our perception and knowledge of this star have gradually changed as mankind has elucidated ever more of its mysteries. The emphasis here is on the last decade, which has seen three successful solar spacecraft missions: SOHO, Ulysses and Yohkoh. Together, these have confirmed many aspects of the solar standard model and provided new clues to the numerous open questions that remain. The author, a leading researcher in the field, writes in a clear and concise style. Known also for his famous books "Astrophysical Formulae", "Sun, Earth and Sky" and the prize-winning "Wanderers in Space", he has succeeded once again in addressing a complex scientific topic in a very approachable way.
Download or read book Electron and Proton Kinetics and Dynamics in Flaring Atmospheres written by Valentina Zharkova and published by John Wiley & Sons. This book was released on 2012-06-25 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: This timely book presents new research results on high-energy particle physics related to solar flares, covering the theory and applications of the reconnection process in a clear and comprehensible way. It investigates particle kinetics and dynamics in flaring atmospheres and their diagnostics from spectral observations, while providing an analysis of the observation data and techniques and comparing various models. Written by an internationally acclaimed expert, this is vital reading for all solar, astro-, and plasma physicists working in the field.
Download or read book Fundamentals Of Solar Astronomy written by Arvind Bhatnagar and published by World Scientific. This book was released on 2005-04-07 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are several textbooks available on solar astronomy which deal with advanced astrophysical aspects of solar physics, and books which provide very elementary knowledge about the Sun. This book will help to bridge the gap. It aims to stimulate interest in solar astronomy, presenting at one place the basic methods and techniques used in the field, together with the latest findings and the excitement in solar physics. As solar astronomy is becoming very popular among amateur astronomers and laymen, the book provides the practical knowledge to build simple solar telescopes and other equipment for making solar observations. Amateur astronomers have made important contributions to solar astronomy, and this book will help to guide them in their endeavours. The book can also serve as a text for undergraduate and graduate students starting out on solar physics. Using it, graduate students can easily embark on specific topics of research in solar astronomy.
Download or read book Advances in Space Environment Research written by I.H. Cairns and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Space Environment Research - Volume I contains the proceedings of two international workshops, the World Space Environment Forum (WSEF2002) and the High Performance Computing in Space Environment Research (HPC2002), organized by the World Institute for Space Environment Research (WISER) from 22 July to 2 August 2002 in Adelaide, Australia. The articles in this volume review the state-of-the-art of the theoretical, computational and observational studies of the physical processes of Sun-Earth connections and Space Environment. They cover six topical areas: Sun/Heliosphere, Magnetosphere/Bow Shock, Ionosphere/Atmosphere, Space Weather/Space Climate, Space Plasma Physics/Astrophysics, and Complex/Intelligent Systems.
Download or read book Pulsating Stars written by Márcio Catelan and published by John Wiley & Sons. This book was released on 2015-02-02 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book surveys our understanding of stars which change in brightness because they pulsate. Pulsating variable stars are keys to distance scales inside and beyond the Milky Way galaxy. They test our understanding not only of stellar pulsation theory but also of stellar structure and evolution theory. Moreover, pulsating stars are important probes of the formation and evolution of our own and neighboring galaxies. Our understanding of pulsating stars has greatly increased in recent years as large-scale surveys of pulsating stars in the Milky Way and other Local Group galaxies have provided a wealth of new observations and as space-based instruments have studied particular pulsating stars in unprecedented detail.
Download or read book Journal of the Elisha Mitchell Scientific Society written by Elisha Mitchell Scientific Society (Chapel Hill, N.C.) and published by . This book was released on 1894 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. 20- include Proceedings of the North Carolina academy of science, 1902-
Download or read book Solar Flare Magnetic Fields and Plasmas written by Yuhong Fan and published by Springer Science & Business Media. This book was released on 2012-03-28 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is devoted to the dynamics and diagnostics of solar magnetic fields and plasmas in the Sun’s atmosphere. Five broad areas of current research in Solar Physics are presented: (1) New techniques for incorporating radiation transfer effects into three-dimensional magnetohydrodynamic models of the solar interior and atmosphere, (2) The connection between observed radiation processes occurring during flares and the underlying flare energy release and transport mechanisms, (3) The global balance of forces and momenta that occur during flares, (4) The data-analysis and theoretical tools needed to understand and assimilate vector magnetogram observations and (5) Connecting flare and CME phenomena to the topological properties of the magnetic field in the Solar Atmosphere. The role of the Sun’s magnetic field is a major emphasis of this book, which was inspired by a workshop honoring Richard C. (Dick) Canfield. Dick has been making profound contributions to these areas of research over a long and productive scientific career. Many of the articles in this topical issue were first presented as talks during this workshop and represent substantial original work. The workshop was held 9 – 11 August 2010, at the Center Green campus of the National Center for Atmospheric Research (NCAR) in Boulder, Colorado. This volume is aimed at researchers and graduate students active in solar physics, solar-terrestrial physics and magneto-hydrodynamics. Previously published in Solar Physics journal, Vol. 277/1, 2012.
Download or read book Journal of the Elisha Mitchell Scientific Society written by Elisha Mitchell Scientific Society and published by . This book was released on 1899 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Pulsations of the Sun and the Stars written by Jean-Pierre Rozelot and published by Springer. This book was released on 2011-07-03 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume of lecture notes brings together the knowledge on pulsations of the Sun and the stars, with a particular emphasis on recent observations and modelling, and on the influence of pulsations of other physical processes. The book begins with an extensive introduction to helioseismology. The solar cycle and gravity modes are discussed before the focus is widened from helioseismology to asteroseismology which is detailed in a series of specific chapters. Based on courses given at a graduate school, these tutorial lecture notes will be of interest and useful to a rather broad audience of scientists and students.
Download or read book Backyard Guide to the Night Sky written by Howard Schneider and published by National Geographic Books. This book was released on 2009 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume packed full of information that illuminates key astronomical concepts along side the history and legends surrounding the stars and planets.
Download or read book American Scientist written by and published by . This book was released on 2003 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seismic Emissions from Solar Flares written by Diana Ionescu and published by . This book was released on 2010 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Sun is the centre and the master of our solar system. Its power gives us light and warmth and life, but its moods can be fearsome. Sunspots, solar flares, coronal mass ejections (CME) and the plethora of other complex magnetic activities that follow the 11-year rhythm of the solar cycle can mean devastation for our technologies, from satellites, to power grids, to telecommunications. Pity the unfortunate astronaut caught unprotected in space during a solar storm!Flares are the most powerful and most dangerous events on the Sun, spewing huge quantities of radiation and particles into space, often accompanied by a CME, sometimes to pummel the Earth. Only our magnetic shield, the magnetosphere, protects us. All means must be brought to bear when studying the Sun's activity, including observations in many wavelengths from terrestrial and space-borne observatories, and the relatively new science of local helioseismology for peering beneath the surface, the photosphere. Especially during the last decade, that of Solar Cycle 23, advances in theory and technology have opened the Sun's magnetic active regions to our deeper seismic gaze.Cycle 23 was closely mapped by the Solar and Heliospheric Observatory (SOHO) orbiting between the Earth and the Sun. A fascinating discovery made with SOHO is that flares high in the Sun's corona not only project their power outwards into space, but also downwards to the photosphere, where they can cause powerful sunquakes. This thesis is devoted to sunquakes: their discovery, their characteristics, and their physics. How and why are they formed, and why do many flares not excite them? How much energy is required to produce them? And how can this unique resource of a sudden localized seismic source be used to better probe the Sun's interior? In so-doing, I present the most detailed survey yet of sunquakes and their physics.Specifically, we have used the local helioseismic technique known as helioseismic holography to detect sunquakes by imaging their acoustic sources rather than their harder-to-see expanding ripples. Nearly all known sunquakes, more than a dozen, have been discovered by us in this way. This is sufficient to begin a survey to discover which types of flares excite quakes and which do not. Using a wide range of observations over several wavelengths, we explore the effects of such features as flare area, energy, height, and spectral hardness.We have also applied a 1D radiation hydrodynamics simulation code RADYN to synthesizing the mechanisms which might create quakes. Both our survey and our simulations favour ``back-warming'', whereby the low chromosphere is suddenly heated by the flare. This energy is then quickly transferred to the adjacent photosphere producing a quake.Because seismic emission from solar flares presents by far the most localized seismic sources in the solar environment, both spatially and temporally, and flares being the only seismic generators whose operation is open to direct view, this phenomenon offers an especially opportune control facility for 21st-century helioseismology.
Download or read book Just the Facts Earth and Space Science Grades 4 6 written by Jennifer Linrud Sinsel and published by Carson-Dellosa Publishing. This book was released on 2007-06-11 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Engage scientists in grades 4–6 and prepare them for standardized tests using Just the Facts: Earth and Space Science. This 128-page book covers concepts including rocks and minerals, weathering, fossils, plate tectonics, earthquakes and volcanoes. Other topics include oceans, the atmosphere, weather and climate, humans and the environment, and the solar system. It includes activities that build science vocabulary and understanding, such as crosswords, word searches, graphing, creative writing, vocabulary puzzles, and analysis. An answer key and a standards matrix are also included. This book supports National Science Education Standards and aligns with state, national, and Canadian provincial standards.
Download or read book Handbook on How to Predict Earthquakes written by Ahmad Jamaludin and published by Partridge Publishing Singapore. This book was released on 2019-03-16 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the history of seismology, no one has come close to present a basic framework on how to predict earthquakes. This book opens a new perspective that earthquakes are triggered by an extraterrestrial astrophysical source. The presence of this yet to be identified source could explain the how and why of earthquake occurrences. Not only that, working on this hypothesis, earthquakes can be predicted as they exhibited patterns that complement the presence of such a source that emits gravitational waves. These waves strike the earth like a lighthouse beam and induce the stress at the fault lines. This gravitational excitation is what actually causes earthquakes. The motion of plate tectonics is only a secondary event.
