Charge Transfer and X-ray Emission from Supernova Remnants
Author: Michael Wayne Wise
Publisher:
Published: 1989
Total Pages: 112
ISBN-13:
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Author: Michael Wayne Wise
Publisher:
Published: 1989
Total Pages: 112
ISBN-13:
DOWNLOAD EBOOKAuthor: John Danziger
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 597
ISBN-13: 9400972318
DOWNLOAD EBOOKIAU Symposium 101, Supernova Remnants and Their X-ray Emission, was held on the Island of San Giorgio, Venice, 30 August - 2 September 1982. It was co-sponsored by the National Research Council, Italy, the University of Padua, the Observatory of Padua, and the International Astronomical Union, and was hosted by the Cini Foundation. The contents of this volume show the wide range of disciplines that are involved in supernova remnant research. Many new results were presented, not only from the X-ray observations from the Einstein Observatory but also from observations at optical and radio wavelengths. This has led to the stimulation of theoretical work, much of which attempts to accommodate in a more unified way all of these observations. Research on supernova remnants of all ages was reported. Perhaps the most impressive part of all this work is the way in which observations at all wavelengths have extended well outside the Galaxy to other members of the Local Group and beyond. The Symposium was attended by scientists from 15 countries. Twenty five invited papers and sixty-eight shorter contributions were presented during the 4-day meeting. Thirty-three of these shorter contributions were presented in poster sessions. This volume contains almost all (89) of those contributions. They are followed by discussions which took place after each verbal presentation. Since the availability of the discussions was left to the individual contributors, they are not complete, but those contained in this volume convey some idea of the nature of the exchanges.
Author: Andrew James Sackville Hamilton
Publisher:
Published: 1984
Total Pages: 670
ISBN-13:
DOWNLOAD EBOOKAuthor: Sarah Nicole Trowbridge Heine
Publisher:
Published: 2014
Total Pages: 249
ISBN-13:
DOWNLOAD EBOOKCharge exchange, the semi-resonant transfer of an electron from a neutral atom to an excited state in an energetic ion, can occur in plasmas where energetic ions are incident on a cold, at least partially neutral gas. Supernova remnants, especially in the immediate shock region, provide conditions conducive to charge exchange. The emission from post charge-exchange ions as the captured electron cascades down to the ground state, can shed light on the physical conditions of the shock and the immediate post-shock material, providing an important tool for understanding supernova explosions and their aftermath. In the first half of this thesis, I study charge exchange in the galactic supernova remnant G296.1-0.5 in two energy bands: the optical and the X-ray. The optical study, performed using both imaging and high resolution spectroscopy from the IMACS instrument on the Magellan Baade Telescope at Las Campanas Observatory, seeks to identify 'Balmer-dominated shocks' in the remnant, which signal the occurrence of charge exchange between hot, postshock protons and colder neutral hydrogen in the environment. The X-ray study probes line ratios in dispersed spectral data obtained with XMM-Newton RGS from an X-ray lobe in the NW of the remnant to hunt for signatures of charge exchange. The dispersed data are degraded by the extended nature of the source, blurring emission lines and making precise measurements difficult. The focus of the second half of this thesis is Micro-X : a sounding rocket-borne X-ray telescope, utilizing an array of microcalorimeters to achieve high energy resolution for even extended sources. I describe the design and commissioning of the payload and the steps toward launch, which is anticipated in the spring of 2015.
Author: Andrew E. Szymkowiak
Publisher:
Published: 1985
Total Pages: 124
ISBN-13:
DOWNLOAD EBOOKX-ray spectra were obtained from fields in three supernova remnants with the solid state spectrometer of the HEAO 2 satellite. These spectra, which contain lines from K-shell transitions of several abundant elements with atomic numbers between 10 and 22, were compared with various models, including some of spectra that would be produced by adiabatic phase remnants when the time-dependence of the ionization is considered.
Author: Eduard Henricus Barbara Maria Gronenschild
Publisher:
Published: 19??
Total Pages: 236
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DOWNLOAD EBOOKAuthor: John George Laros
Publisher:
Published: 1973
Total Pages: 216
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DOWNLOAD EBOOKAuthor: Farid Salama
Publisher:
Published: 2002
Total Pages: 308
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DOWNLOAD EBOOKAuthor: Karoly Szego
Publisher: Springer
Published: 2015-10-14
Total Pages: 332
ISBN-13: 1493933957
DOWNLOAD EBOOKReaders will find grouped together here the most recent observations, current theoretical models and present understanding of the coupled atmosphere, magnetosphere and solar wind system. The book begins with a general discussion of mass, energy and momentum transport in magnetodiscs. The physics of partially ionized plasmas of the giant planet magnetodiscs is of general interest throughout the field of space physics, heliophysics and astrophysical plasmas; therefore, understanding the basic physical processes associated with magnetodiscs has universal applications. The second chapter characterizes the solar wind interaction and auroral responses to solar wind driven dynamics. The third chapter describes the role of magnetic reconnection and the effects on plasma transport. Finally, the last chapter characterizes the spectral and spatial properties of auroral emissions, distinguishing between solar wind drivers and internal driving mechanisms. The in-depth reviews provide an excellent reference for future research in this discipline.
Author:
Publisher:
Published: 1995
Total Pages: 704
ISBN-13:
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