Current Theoretical Models and High Resolution Solar Observations

Current Theoretical Models and High Resolution Solar Observations PDF Author: National Solar Observatory/Sacramento Peak. Summer Workshop
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 504

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Current Theoretical Models and High Resolution Solar Observations

Current Theoretical Models and High Resolution Solar Observations PDF Author: National Solar Observatory/Sacramento Peak. Summer Workshop
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 504

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Current Theoretical Models and Highresolution Solarobservations : Preparing for ATST

Current Theoretical Models and Highresolution Solarobservations : Preparing for ATST PDF Author: Alexei A. Pevtsov
Publisher:
ISBN: 9781583816219
Category :
Languages : en
Pages : 452

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The Rotation of Sun and Stars

The Rotation of Sun and Stars PDF Author: Jean-Pierre Rozelot
Publisher: Springer Science & Business Media
ISBN: 3540878300
Category : Science
Languages : en
Pages : 266

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Book Description
The Sun and stars rotate in di?erent ways and at di?erent velocity rates. The knowledge of how they rotate is important in understanding the formation and evolution of stars and their structure. The closest star to our Earth, the Sun, is a good laboratory to study in detail the rotation of a G star and allows to test new ideas and develop new techniques to study stellar rotation. More or less massive, more or lessevolved objects, however, can have averydi?erent rotation rate, structure and history. In recent years our understanding of the rotation of the Sun has greatly improved. The Sun has a well-known large-scale rotation, which can be m- sured thanks to visible features across the solar disk, such as sunspots, or via spectroscopy. In addition, several studies cast light on di?erential rotation in the convective zone and on meridional circulation in the radiative zone of the Sun. Even the rotation of the core of the Sun can now be studied thanks to various methods, such as dynamics of the gravitational moments and of course, helioseismology, through g-modes analysis. Moreover, the magnetic ?eld is strongly linked to the matter motions in the solar plasma. The solar magnetic ?eld can be measured only at the surface or in theupperlayers.Itistheproductoftheinternaldynamoorofthelocaldynamos if they exist – in any case magnetic ?eld and rotation cannot thus be separated.

National Optical Astronomy Observatories Newsletter

National Optical Astronomy Observatories Newsletter PDF Author:
Publisher:
ISBN:
Category : Astronomical observatories
Languages : en
Pages : 414

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Solar MHD Theory and Observations

Solar MHD Theory and Observations PDF Author: National Solar Observatory/Sacramento Peak. Summer Workshop
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 410

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Adaptive Optics Progress

Adaptive Optics Progress PDF Author: Robert Tyson
Publisher: BoD – Books on Demand
ISBN: 9535108948
Category : Technology & Engineering
Languages : en
Pages : 232

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Book Description
For over four decades there has been continuous progress in adaptive optics technology, theory, and systems development. Recently there also has been an explosion of applications of adaptive optics throughout the fields of communications and medicine in addition to its original uses in astronomy and beam propagation. This volume is a compilation of research and tutorials from a variety of international authors with expertise in theory, engineering, and technology. Eight chapters include discussion of retinal imaging, solar astronomy, wavefront-sensorless adaptive optics systems, liquid crystal wavefront correctors, membrane deformable mirrors, digital adaptive optics, optical vortices, and coupled anisoplanatism.

Microphysics of Cosmic Plasmas

Microphysics of Cosmic Plasmas PDF Author: André Balogh
Publisher: Springer Science & Business Media
ISBN: 148997413X
Category : Science
Languages : en
Pages : 631

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Book Description
Presents a comprehensive review of physical processes in astrophysical plasmas. This title presents a review of the detailed aspects of the physical processes that underlie the observed properties, structures and dynamics of cosmic plasmas. An assessment of the status of understanding of microscale processes in all astrophysical collisionless plasmas is provided. The topics discussed include turbulence in astrophysical and solar system plasmas as a phenomenological description of their dynamic properties on all scales; observational, theoretical and modelling aspects of collisionless magnetic reconnection; the formation and dynamics of shock waves; and a review and assessment of microprocesses, such as the hierarchy of plasma instabilities, non-local and non-diffusive transport processes and ionisation and radiation processes. In addition, some of the lessons that have been learned from the extensive existing knowledge of laboratory plasmas as applied to astrophysical problems are also covered. This volume is aimed at graduate students and researchers active in the areas of cosmic plasmas and space science. Originally published in Space Science Reviews journal, Vol. 278/2-4, 2013.

Multi-Wavelength Investigations of Solar Activity (IAU S223)

Multi-Wavelength Investigations of Solar Activity (IAU S223) PDF Author: International Astronomical Union. Symposium
Publisher: Cambridge University Press
ISBN: 9780521851954
Category : Science
Languages : en
Pages : 766

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Book Description
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

The Sun’s Surface and Subsurface

The Sun’s Surface and Subsurface PDF Author: Jean-Pierre Rozelot
Publisher: Springer
ISBN: 3540457550
Category : Science
Languages : en
Pages : 222

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Book Description
Composed of a set of lectures and tutorial reviews, this book stems from a summer school devoted to the gravitational aspects of the sun and their geophysical consequences. Contribitions elaborate on the gravitational distortions of the sun which can be used to gain some knowledge of the sun's interior and surface phenomena but which also influences the sun's irradience and thus ultimately the earth's climate. Last but not least, it is shown that these small distortions constitute a formidable challenge to solar astrometry, and the final part of the book describes the observational difficulties in defining unequivocally the solar diameter.

Future Directions in High Resolution Astronomy

Future Directions in High Resolution Astronomy PDF Author: Jonathan D. Romney
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 720

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