Download or read book On the Periodicity of the Solar Spots written by Daniel Kirkwood and published by . This book was released on 1869 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sunspots and Their Effects written by Harlan True Stetson and published by Read Books Ltd. This book was released on 2013-05-31 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: The near approach of another sunspot maximum with accompanying interest shown by the press and the general public gives the occasion for a book on sunspots. Very interesting book on the history and detection of sunspots and their possible effects on humankind. A must for anyone interested in how sunspots will affect the earth and human affairs and those that like to keep themselves informed of trends in science.
Download or read book On the Period of the Solar Spots written by Simon Newcomb and published by . This book was released on 1901 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On the 152 Day Periodicity of the Solar Flare Occurrence Rate written by Taeil Bai and published by . This book was released on 1986 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The occurrence rate of solar flares exhibits a periodicity of about 152 days. This periodicity was discovered from analysis of flares observed with the Solar Maximum Mission(SMM), and confirmed by analysis of flares observed by other observatories. This periodicity was also discovered from the flare rate of solar cycle 20 (1965-75). The cause of the 152-day periodicity still remains a mystery. But answers to the following questions will enhance our understanding of it (1) Is the periodicity a local or a global phenomenon? (2) is the periodicity due to the interaction of 'hotspots' rotating at different rates such that they align with one another once every 152-day period? (3) Is the periodicity due to the interaction of rotating features originating from g-mode oscillations? Here we report our analysis of 'major flares' observed with the Hard X-ray Burst Spectrometer (HXRBS) aboard SMM and we conclude that the 152-day periodicity is a global phenomenon and that the answers to questions (2) and (3) are negative. (Reprints).
Download or read book The Sunspot Period written by Henry Helm Clayton and published by . This book was released on 1939 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sun Spots Their Cause and the Cause of Their Periodicity written by James Elliott and published by . This book was released on 1908 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Sun spot Period and the Variations of the Mean Annual Temperature of the Earth written by Charles Nordmann and published by . This book was released on 1904 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Solar Tachocline written by D. W. Hughes and published by Cambridge University Press. This book was released on 2007-05-31 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Helioseismology has enabled us to probe the internal structure and dynamics of the Sun, including how its rotation varies in the solar interior. The unexpected discovery of an abrupt transition - the tachocline - between the differentially rotating convection zone and the uniformly rotating radiative interior has generated considerable interest and raised many fundamental issues. This volume contains invited reviews from distinguished speakers at the first meeting devoted to the tachocline, held at the Isaac Newton Institute. It provides a comprehensive account of the understanding of the properties and dynamics of the tachocline, including both observational results and major theoretical issues, involving both hydrodynamic and magnetohydrodynamic behaviour. The Solar Tachocline is a valuable reference for researchers and graduate students in astrophysics, heliospheric physics and geophysics, and the dynamics of fluids and plasmas.
Download or read book On the Periodicity of the Solar Spots and Induced Meteorological Disturbances written by Robert Philips Greg and published by . This book was released on 1860* with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sunspottery Or What Do We Owe to the Sun written by J. A. Westwood Oliver and published by . This book was released on 1883 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A 154 Day Periodicity in the Occurrence Rate of Proton Flares written by T. Bai and published by . This book was released on 1989 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have analyzed periodicities in the occurrence rate of proton flares for solar cycles 19 through 21 (1955-86) and have identified two epochs that exhibit a 154-day periodicity. These epochs are a 14-year interval from 1958 January through 1971 December and a 5.5-year interval from 1978 February to 1983 August. The best-determined period is 154.6. We have found that the phase of this periodicity changed between the above-mentioned two epochs by about one half of a period. It appears that the occurrence rate of proton flares is more sensitive to the 154-day periodicity than the occurrence rate of flares selected by other criteria. Keywords: Solar activity, Sunspots, Astrophysics, Periodic variations, Proton flares, Sun. (jg).
Download or read book The Sunspot activity in the Years 1610 1960 written by Max Waldmeier and published by . This book was released on 1961 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nature s Third Cycle written by Arnab Rai Choudhuri and published by Oxford University Press, USA. This book was released on 2015 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 11-year cycle of sunspots is one of the most intriguing natural cycles known to mankind. This book explores the fascinating science behind these phenomena and gives an insider's view of the history of the field.
Download or read book The Sun Kings written by Stuart Clark and published by Princeton University Press. This book was released on 2009-04-12 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recounts the story behind English astronomer Richard Carrington's observations of a mysterious explosion on the surface of the sun and how his understanding that the sun's magnetism directly influences the Earth helped usher in the modern era of astronomy.
Download or read book Solar Terrestrial Magnetic Activity and Space Environment written by H. Wang and published by Elsevier. This book was released on 2002-11-20 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: The COSPAR Colloquium on Solar-Terrestrial Magnetic Activity and Space Environment (STMASE) was held in the National Astronomy Observatories of Chinese Academy of Sciences (NAOC) in Beijing, China in September 10-12, 2001. The meeting was focused on five areas of the solar-terrestrial magnetic activity and space environment studies, including study on solar surface magnetism; solar magnetic activity, dynamical response of the heliosphere; space weather prediction; and space environment exploration and monitoring. A hot topic of space research, CMEs, which are widely believed to be the most important phenomenon of the space environment, is discussed in many papers. Other papers show results of observational and theoretical studies toward better understanding of the complicated image of the magnetic coupling between the Sun and the Earth, although little is still known little its physical background. Space weather prediction, which is very important for a modern society expanding into out-space, is another hot topic of space research. However, a long way is still to go to predict exactly when and where a disaster will happen in the space. In that sense, there is much to do for space environment exploration and monitoring. The manuscripts submitted to this Monograph are divided into the following parts: (1) solar surface magnetism, (2) solar magnetic activity, (3) dynamical response of the heliosphere, (4) space environment exploration and monitoring; and (5) space weather prediction. Papers presented in this meeting but not submitted to this Monograph are listed by title as unpublished papers at the end of this book.
Download or read book Variations of Cosmic Ray Intensity written by Akademii︠a︡ nauk SSSR. I︠A︡kutskiĭ filial and published by . This book was released on 1961 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cosmic Rays at Earth written by P.K.F. Grieder and published by Elsevier. This book was released on 2001-07-27 with total page 1117 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1912 Victor Franz Hess made the revolutionary discovery that ionizing radiation is incident upon the Earth from outer space. He showed with ground-based and balloon-borne detectors that the intensity of the radiation did not change significantly between day and night. Consequently, the sun could not be regarded as the sources of this radiation and the question of its origin remained unanswered. Today, almost one hundred years later the question of the origin of the cosmic radiation still remains a mystery.Hess' discovery has given an enormous impetus to large areas of science, in particular to physics, and has played a major role in the formation of our current understanding of universal evolution. For example, the development of new fields of research such as elementary particle physics, modern astrophysics and cosmology are direct consequences of this discovery. Over the years the field of cosmic ray research has evolved in various directions: Firstly, the field of particle physics that was initiated by the discovery of many so-called elementary particles in the cosmic radiation. There is a strong trend from the accelerator physics community to reenter the field of cosmic ray physics, now under the name of astroparticle physics. Secondly, an important branch of cosmic ray physics that has rapidly evolved in conjunction with space exploration concerns the low energy portion of the cosmic ray spectrum. Thirdly, the branch of research that is concerned with the origin, acceleration and propagation of the cosmic radiation represents a great challenge for astrophysics, astronomy and cosmology. Presently very popular fields of research have rapidly evolved, such as high-energy gamma ray and neutrino astronomy. In addition, high-energy neutrino astronomy may soon initiate as a likely spin-off neutrino tomography of the Earth and thus open a unique new branch of geophysical research of the interior of the Earth. Finally, of considerable interest are the biological and medical aspects of the cosmic radiation because of it ionizing character and the inevitable irradiation to which we are exposed. This book is a reference manual for researchers and students of cosmic ray physics and associated fields and phenomena. It is not intended to be a tutorial. However, the book contains an adequate amount of background materials that its content should be useful to a broad community of scientists and professionals. The present book contains chiefly a data collection in compact form that covers the cosmic radiation in the vicinity of the Earth, in the Earth's atmosphere, at sea level and underground. Included are predominantly experimental but also theoretical data. In addition the book contains related data, definitions and important relations. The aim of this book is to offer the reader in a single volume a readily available comprehensive set of data that will save him the need of frequent time consuming literature searches.
