Download or read book Multi Wavelength Observations of Coronal Structure and Dynamics written by Penny Martens and published by Elsevier. This book was released on 2002-10-21 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: These are the Proceedings of the Yohkoh 10th Anniversary Meeting, a COSPAR Colloquium held in Kona, Hawaii, USA, on January 20-24, 2002. The title of the meeting was Multi-Wavelength Observations of Coronal Structure and Dynamics. In these proceedings the many and varied advances of the dynamics solar atmosphere in the past ten years of observations by Yohkoh have been reviewed.
Download or read book Multi wavelength Observations of Coronal Waves and Oscillations in Association with Solar Eruptions written by Danica Tóthová and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drivers of Solar Coronal Dynamics written by D. Baker and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Multi-wavelength observations from various solar missions have revealed the dynamic nature of the solar corona. The work presented in this thesis represents a contribution towards understanding some of the physical mechanisms that drive the activity observed in the corona and out into the heliosphere. In particular, the role of reconnection in active region (AR) outflows and AR-coronal hole (CH) interactions using observations of the associated plasma flow signatures and their relationship to the underlying magnetic field topology is examined. Persistent outflows discovered by Hinode EUV Imaging Spectrometer (EIS) occur at the boundary of all ARs over monopolar magnetic regions. It is demonstrated that the outflows originate from specific locations of the magnetic topology where field lines display strong gradients of magnetic connectivity, namely quasi-separatrix layers (QSLs). Magnetic reconnection at QSLs is shown to be a viable mechanism for driving AR outflows which are likely sources of the slow solar wind. Observational signatures and consequences of interchange reconnection (IR) are identified and analyzed in a number of solar configurations. Jet light curves of several emission lines show a post-jet enhancement in cooler coronal lines which has not been previously observed. In the case of emerging flux near a CH, it is shown that closed loops forming between the AR and CH leads to the retreat of the CH and a dimming of the corona in the vicinity of the like-polarity region. A filament eruption and coronal mass ejection (CME) from an AR inside a CH are observed from the solar disk into the heliosphere. An anemone structure of the erupting AR and the passage in-situ of an interplanetary CME (ICME) with open magnetic topology are interpreted to be a direct result of IR. Plasma flows resulting from the interaction between an AR embedded in a CH observed by Hinode EIS are investigated. Velocity profiles of hotter coronal lines reveal intensification in outflow velocities prior to a CME. The AR's plasma flows are compared with 3D magnetohydrodynamic (MHD) numerical simulations which show that expansion of AR loops drives outflows along the neighboring CH field. The intensification of outflows observed prior to the CME is likely to result from the expansion of a flux rope containing a filament further compressing the neighboring CH field.
Download or read book Energy Conversion and Particle Acceleration in the Solar Corona written by Karl-Ludwig Klein and published by Springer. This book was released on 2008-01-11 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conversion of energy generated in the Sun's interior creates its hot corona and a wealth of dynamical phenomena such as flares and mass ejections. Based on recent significant progress in understanding magnetic reconnection and a wealth of new observations of energetic particle signatures from the sun, the present volume reviews the current theoretical and experimental status in the field. Paying attention to both the details and the broader picture, this book addresses both the experienced researcher as well as non-specialist researchers from related areas and postgraduate students.
Download or read book The Sun New Challenges written by Vladimir N. Obridko and published by Springer Science & Business Media. This book was released on 2012-07-27 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: These are the proceedings of the Symposium 3 of JENAM 2011 on new scientific challenges posed by the Sun. The topics covered are 1. The unusual sunspot minimum, which poses challenges to the solar dynamo theory 2. The Sun’s Terra-Hertz emission, which opens a new observational window 3. Corona wave activity 4. Space weather agents - initiation, propagation, and forecasting In 21 in-depth contributions, the reader will be presented with the latest findings.
Download or read book Plasma Astrophysics Part II written by Boris V. Somov and published by Springer Science & Business Media. This book was released on 2007-12-31 with total page 861 pages. Available in PDF, EPUB and Kindle. Book excerpt: This illustrated monograph explores the fundamentals, current practice, and theoretical perspectives of modern plasma astrophysics. The opening part covers basic principles and practical tools for understanding and working with plasma astrophysics. The second section examines the physics of magnetic reconnection and flares of electromagnetic origin in space plasmas in the solar system, and more. Designed mainly for professional researchers, it will be useful to graduate students in space sciences and geophysics.
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 2008-10-20 with total page 583 pages. Available in PDF, EPUB and Kindle. Book excerpt: The First Edition of The Sun from Space, completed in 1999, focused on the early accomplishments of three solar spacecraft, SOHO, Ulysses, and Yohkoh, primarily during a minimum in the Sun’s 11-year cycle of magnetic activity. The comp- hensive Second Edition includes the main ndings of these three spacecraft over an entire activity cycle, including two minima and a maximum, and discusses the signi cant results of six more solar missions. Four of these, the Hinode, RHESSI, STEREO, and TRACE missions were launched after the First Edition was either nished or nearly so, and the other two, the ACE and Wind spacecraft, extend our investigations from the Sun to its varying input to the Earth. The Second Edition does not contain simple updates or cosmetic patch ups to the material in the First Edition. It instead contains the relevant discoveries of the past decade, integrated into chapters completely rewritten for the purpose. This provides a fresh perspective to the major topics of solar enquiry, written in an enjoyable, easily understood text accessible to all readers, from the interested layperson to the student or professional.
Download or read book Coronal Magnetometry written by Sarah E. Gibson and published by Frontiers Media SA. This book was released on 2017-07-11 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetism defines the complex and dynamic solar corona. It determines the magnetic loop structure that dominates images of the corona, and stores the energy necessary to drive coronal eruptive phenomena and flare explosions. At great heights the corona transitions into the ever-outflowing solar wind, whose speed and three-dimensional morphology are controlled by the global coronal magnetic field. Coronal magnetism is thus at the heart of any understanding of the nature of the corona, and essential for predictive capability of how the Sun affects the Earth. Coronal magnetometry is a subject that requires a concerted effort to draw together the different strands of research happening around the world. Each method provides some information about the field, but none of them can be used to determine the full 3D field structure in the full volume of the corona. Thus, we need to combine them to understand the full picture. The purpose of this Frontiers Research Topic on Coronal Magnetometry is to provide a forum for comparing and coordinating these research methods, and for discussing future opportunities.
Download or read book Multi Wavelength Investigations of Solar Activity IAU S223 written by International Astronomical Union. Symposium and published by Cambridge University Press. This book was released on 2004 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt: These Proceedings present the most recent results from the highly successful international solar space missions (SOHO, CORONAS-F, TRACE, RHESSI, YOHKOH) and ground observatories around the Earth, reported at the IAU Symposium 223 held in St. Petersburg, Russia, June 14-19, 2004. These include discussions of the current theories of solar dynamics and activity, new constraints provided by the multi-wavelength observations of the Sun from the interior to the heliosphere, as well as discussions of future coordinated plans and efforts of multi-wavelength investigations of the Sun. The Proceedings contain the material of seven plenary sessions and three round-table discussions
Download or read book Turbulence Waves and Instabilities in the Solar Plasma written by R. Erdélyi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Significant advances have been made recently in both the theoretical understanding and observation of small-scale turbulence in different layers of the Sun, and in the instabilities that give rise to them. The general development of solar physics, however, has led to such a degree of specialization as to hinder interaction between workers in the field. This book therefore presents studies of different layers and regions of the Sun, but from the same aspect, concentrating on the study of small-scale motions. The main emphasis is on the common theoretical roots of these phenomena, but the book also contains an extensive treatment of the observational aspects.
Download or read book Extreme Events in Geospace written by Natalia Buzulukova and published by Elsevier. This book was released on 2017-12-01 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extreme Events in Geospace: Origins, Predictability, and Consequences helps deepen the understanding, description, and forecasting of the complex and inter-related phenomena of extreme space weather events. Composed of chapters written by representatives from many different institutions and fields of space research, the book offers discussions ranging from definitions and historical knowledge to operational issues and methods of analysis. Given that extremes in ionizing radiation, ionospheric irregularities, and geomagnetically induced currents may have the potential to disrupt our technologies or pose danger to human health, it is increasingly important to synthesize the information available on not only those consequences but also the origins and predictability of such events. Extreme Events in Geospace: Origins, Predictability, and Consequences is a valuable source for providing the latest research for geophysicists and space weather scientists, as well as industries impacted by space weather events, including GNSS satellites and radio communication, power grids, aviation, and human spaceflight. The list of first/second authors includes M. Hapgood, N. Gopalswamy, K.D. Leka, G. Barnes, Yu. Yermolaev, P. Riley, S. Sharma, G. Lakhina, B. Tsurutani, C. Ngwira, A. Pulkkinen, J. Love, P. Bedrosian, N. Buzulukova, M. Sitnov, W. Denig, M. Panasyuk, R. Hajra, D. Ferguson, S. Lai, L. Narici, K. Tobiska, G. Gapirov, A. Mannucci, T. Fuller-Rowell, X. Yue, G. Crowley, R. Redmon, V. Airapetian, D. Boteler, M. MacAlester, S. Worman, D. Neudegg, and M. Ishii. Helps to define extremes in space weather and describes existing methods of analysis Discusses current scientific understanding of these events and outlines future challenges Considers the ways in which space weather may affect daily life Demonstrates deep connections between astrophysics, heliophysics, and space weather applications, including a discussion of extreme space weather events from the past Examines national and space policy issues concerning space weather in Australia, Canada, Japan, the United Kingdom, and the United States
Download or read book Solar Planetary Systems written by Asit B. Bhattacharya and published by CRC Press. This book was released on 2016-11-25 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors have put forth great efforts in gathering present day knowledge about different objects within our solar system and universe. This book features the most current information on the subject with information acquired from noted scientists in this area. The main objective is to convey the importance of the subject and provide detailed information on the physical makeup of our planetary system and technologies used for research. Information on educational projects has also been included in the Radio Astronomy chapters.This information is a real plus for students and educators considering a career in Planetary Science or for increasing their knowledge about our planetary system.
Download or read book Neutrinos written by Arnold S. Lavro and published by Nova Publishers. This book was released on 2002 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neutrinos are one of the most abundant particles in the universe. Because they have very little interaction with matter, however, they are incredibly difficult to detect. Neutrinos are similar to the more familiar electron, with one crucial difference: neutrinos do not carry electric charge. Because neutrinos are electrically neutral, they are not affected by the electromagnetic forces which act on electrons. Three types of neutrinos are known. Each type or 'flavour' of neutrino is related to a charged particle (which gives the corresponding neutrino its name). Hence, the 'electron neutrino' is associated with the electron, and two other neutrinos are associated with heavier versions of the electron called the muon and the tau. The book presents citations from the literature for the last three years from the journal literature and the existent book literature. Access is provided by subject, author and title indexes.
Download or read book Magnetohydrodynamics of the Sun written by Eric Priest and published by Cambridge University Press. This book was released on 2014-04-07 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetohydrodynamics of the Sun is a completely new up-to-date rewrite from scratch of the 1982 book Solar Magnetohydrodynamics, taking account of enormous advances in understanding since that date. It describes the subtle and complex interaction between the Sun's plasma atmosphere and its magnetic field, which is responsible for many fascinating dynamic phenomena. Chapters cover the generation of the Sun's magnetic field by dynamo action, magnetoconvection and the nature of photospheric flux tubes such as sunspots, the heating of the outer atmosphere by waves or reconnection, the structure of prominences, the nature of eruptive instability and magnetic reconnection in solar flares and coronal mass ejections, and the acceleration of the solar wind by reconnection or wave-turbulence. It is essential reading for graduate students and researchers in solar physics and related fields of astronomy, plasma physics and fluid dynamics. Problem sets and other resources are available at www.cambridge.org/9780521854719.
Download or read book A Multiwavelength Study of Coronal Structure written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-02 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solar soft X-ray images taken simultaneously by the Yohkoh and the Normal Incidence X-ray Telescope (NIXT) reveal significantly different coronal structures. Coronal loops are more clearly seen in the Yohkoh images, and the isolated island-like structures seen in the NIXT image have been found to correspond to the footpoints of the Yohkoh loops. The difference is due to the difference in the temperature response of the telescopes: NIXT is sensitive to temperatures ranging from 0.9 to 3 MK, while Yohkoh is more sensitive to temperatures above 2.5 MK. The morphological differences reflect the multi-temperature (1-5 MK) nature of the solar coronal plasmas. Golub, Leon Unspecified Center...
Download or read book Multi wavelength Studies of Dynamic Events in the Solar Corona from Space based and Total Solar Eclipse Observations written by and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Connections and Reconnections in Solar and Stellar Coronae written by L. K. Harra and published by . This book was released on 2003 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: