Frontiers of X-Ray Astronomy (Paper)
Author: Tanaka, Y.
Publisher:
Published: 1992
Total Pages: 752
ISBN-13:
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Author: Tanaka, Y.
Publisher:
Published: 1992
Total Pages: 752
ISBN-13:
DOWNLOAD EBOOKAuthor: A. C. Fabian
Publisher: Cambridge University Press
Published: 2004-07-08
Total Pages: 260
ISBN-13: 9780521534871
DOWNLOAD EBOOKX-ray astronomy has undergone a revolution in recent years. With the launch of two orbiting observatories, Chandra and XMM-Newton, astronomers are now able to obtain spectra and images at a higher resolution than ever before. Observations have had a major impact on topics ranging from protostars to cosmology. The contributions in this 2004 work, by leading authorities in the field, originate from a Royal Society Discussion Meeting that was held to review results from the current generation of X-ray telescopes, and set them in context. This book is a valuable reference for research astronomers and graduate students wishing to understand the latest developments in this exciting field.
Author: Qi Bin Li
Publisher: World Scientific
Published: 1993-09-09
Total Pages: 234
ISBN-13: 9814552607
DOWNLOAD EBOOKThe workshop on “Frontiers of Astronomy in 1990s” was held to commemorate the 70th anniversary of the founding of the Chinese Astronomical Society.In total this set of proceedings presents 12 invited papers and 15 contributions, covering the many fields and their development within the region. These include astronomy, astronomical instruments, high energy astrophysics and space astronomy, galaxies and large scale structure of the universe, stars, interstellar medium and the Galaxy, the Sun and the solar system and many more interesting topics in astronomy.15 distinguished scientists from 8 countries attended and presented their reports. These include Y Kozai, J Trümper, J P Swings, R E Williams, W Hillebrandt, F N Bash, W Wamsteker, M Créze, M Dennefeld, G Börner, Kaifu, H-Y Chiu, T C Weekes, J-S Shen and C-H Tsai.For those mystified by the stars, the planets and the universe as a whole, this volume promises to intrigue and transport you beyond the frontiers of astronomy.
Author: Xavier Barcons
Publisher: Cambridge University Press
Published: 1992-07-31
Total Pages: 328
ISBN-13: 9780521416511
DOWNLOAD EBOOKA review of the current observational knowledge and understanding of the cosmic X-ray background.
Author: Joshua S. Bloom
Publisher: Princeton University Press
Published: 2011-01-10
Total Pages: 271
ISBN-13: 1400837006
DOWNLOAD EBOOKA brief, cutting-edge introduction to the brightest cosmic phenomena known to science Gamma-ray bursts are the brightest—and, until recently, among the least understood—cosmic events in the universe. Discovered by chance during the cold war, these evanescent high-energy explosions confounded astronomers for decades. But a rapid series of startling breakthroughs beginning in 1997 revealed that the majority of gamma-ray bursts are caused by the explosions of young and massive stars in the vast star-forming cauldrons of distant galaxies. New findings also point to very different origins for some events, serving to complicate but enrich our understanding of the exotic and violent universe. What Are Gamma-Ray Bursts? is a succinct introduction to this fast-growing subject, written by an astrophysicist who is at the forefront of today's research into these incredible cosmic phenomena. Joshua Bloom gives readers a concise and accessible overview of gamma-ray bursts and the theoretical framework that physicists have developed to make sense of complex observations across the electromagnetic spectrum. He traces the history of remarkable discoveries that led to our current understanding of gamma-ray bursts, and reveals the decisive role these phenomena could play in the grand pursuits of twenty-first century astrophysics, from studying gravity waves and unveiling the growth of stars and galaxies after the big bang to surmising the ultimate fate of the universe itself. What Are Gamma-Ray Bursts? is an essential primer to this exciting frontier of scientific inquiry, and a must-read for anyone seeking to keep pace with cutting-edge developments in physics today.
Author: Peter J. Serlemitsos
Publisher:
Published: 1993
Total Pages: 612
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 1983
Total Pages: 542
ISBN-13:
DOWNLOAD EBOOKPapers for each conference issued in several volumes. Volumes distributed to conference registrants have title "Conference papers"; other volumes of papers published after the conference are identified as "Late papers", "Invited papers", or other similar titles. Most conferences also have a general index volume.
Author: British Library. Document Supply Centre
Publisher:
Published: 2003
Total Pages: 870
ISBN-13:
DOWNLOAD EBOOKAuthor: Fred Hoyle
Publisher:
Published: 1980
Total Pages: 483
ISBN-13:
DOWNLOAD EBOOKAuthor: Willem Wamsteker
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 721
ISBN-13: 9401107947
DOWNLOAD EBOOKROSAT Observations G. HASINGER Max-Planck-Institut flir extraterrestrische Physik, D-85740 Garching, Germany Abstract. This review describes the most recent advances in the study of the extragalactic soft X-ray background and what we can learn about its constituents. The deepest pointed observations with the ROSAT PSPC are discussed. The logN-logS relation is presented, which reaches to the faintest X-ray fluxes and to the highest AGN surface densities ever achieved. The N(>S) relation shows a 2 density in excess of 400 deg- at the faintest fluxes and a flattening below the Einstein Deep Survey limit. About 60% of the extragalactic background has been resolved in the deepest field. Detailed source spectra and first optical and radio identifications will be discussed. The results are put into perspective of the higher energy X -ray background. Key words: X-rays, background radiations, active galactic nuclei. 1. Introduction The extragalactic X-ray background (XRB), discovered about 30 years ago, has been studied extensively with many X-ray experiments, in particular with the satel lites HEAO I and II (see ego Boldt 1987) and with ROSAT (e. g. Hasinger et aI. , 1993). Figure 1 shows a compilation of some of the most recent spectral measure ments for the X-ray background. Over the energy range from 3 to about 100 keY its spectrum can be well approximated by an optically thin thermal bremsstrahlung model with kT ~ 40 keY, while at lower X-ray energies a steepening into a new component has been observed observed (e. g.