Astrophysics On The Threshold Of The 21st Century

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Astrophysics On The Threshold Of The 21st Century

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Author : N. S. Kardashev
language : en
Publisher: Taylor & Francis
Release Date : 1992

Astrophysics On The Threshold Of The 21st Century written by N. S. Kardashev and has been published by Taylor & Francis this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Science categories.

Reports on the current status of some of the major problems in astrophysics, such as solar and solar-system physics, the physics of different scales of astronomical objects, the evolution of the universe, and the search for extraterrestrial life. The 22 reviews also include reminiscences on the history of the discipline in the Soviet Union, and speculations on its course over the next century. Translated from the Russian. Annotation copyrighted by Book News, Inc., Portland, OR

Space Science In China

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Author : Wen-Rui Hu
language : en
Publisher: CRC Press
Release Date : 1997-08-20

Space Science In China written by Wen-Rui Hu and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-08-20 with Science categories.

Space science in China is one of the most active areas in modern science, and China has played a dynamic and steadily increasing role in this field since the 1960s. Until recently, however, activity in China was a mystery to the rest of the world. With the commercial importance of space, and the fact that space is now used as a "laboratory" to carry out various experiments, China has recently emerged as an important international competitor. Space Science in China provides a clear understanding of the latest research and progress in such wide-ranging areas as the development and research in solar-terrestrial science, space astronomy, geoscience, remote sensing, microgravity science, and life science.

Astrophysics In The Xxi Century With Compact Stars

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Author : César Augusto Zen Vasconcellos
language : en
Publisher:
Release Date : 2022

Astrophysics In The Xxi Century With Compact Stars written by César Augusto Zen Vasconcellos and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with Astrophysics categories.

Literature 1992 Part 1

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Author : Astronomisches Recheninstitut
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-11

Literature 1992 Part 1 written by Astronomisches Recheninstitut and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-11 with Science categories.

"Astronomy and Astrophysics Abstracts" appearing twice a year has become oneof the fundamental publications in the fields of astronomy, astrophysics andneighbouring sciences. It is the most important English-language abstracting journal in the mentioned branches. The abstracts are classified under more than a hundred subject categories, thus permitting a quick survey of the whole extended material. The AAA is a valuable and important publication for all students and scientists working in the fields of astronomy and related sciences. As such it represents a necessary ingredient of any astronomical library all over the world.

America At The Threshold

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Author : Synthesis Group (U.S.)
language : en
Publisher:
Release Date : 1991

America At The Threshold written by Synthesis Group (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Lunar probes categories.

High Energy Astrophysics In The 21st Century

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Author : Joss
language : en
Publisher: Amer Inst of Physics
Release Date : 1998-07-01

High Energy Astrophysics In The 21st Century written by Joss and has been published by Amer Inst of Physics this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-07-01 with Science categories.

High Angular Resolution In Astrophysics

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Author : A. Lagrange
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

High Angular Resolution In Astrophysics written by A. Lagrange and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.

Over the last decade many efforts have been made to develop high angular resolution techniques in astrophysics. Combined with imaging facilities, they have rapidly proved their efficiency and have already led to major astrophysical results. During the decade to come, astronomers will be offered new, even more sophisticated high angular resolution tools, especially in the IR and optical domains, coupled with much bigger telescopes, either on the ground or in space. In such a context of rapidly evolving techniques and a growing need for higher angular resolution to test theories or discover new objects, the present book reviews both instrumental and scientific aspects. The main questions addressed are: what kind of science will benefit from high angular resolution techniques? How can they best be used? Audience: The book is accessible to students and research workers in both instrumental and astrophysical aspects.

Supernovae And Supernova Remnants

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Author : International Astronomical Union. Colloquium
language : en
Publisher: Cambridge University Press
Release Date : 1996-03-21

Supernovae And Supernova Remnants written by International Astronomical Union. Colloquium and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996-03-21 with Science categories.

A comprehensive and timely review of studies of supernovae and supernova remnants.

Frontiers Of Space And Ground Based Astronomy

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Author : Willem Wamsteker
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Frontiers Of Space And Ground Based Astronomy written by Willem Wamsteker and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.

ROSAT 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.

The Nuclei Of Normal Galaxies

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Author : R. Genzel
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

The Nuclei Of Normal Galaxies written by R. Genzel and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.

Our Galactic center's proximity allows astronomers to study physical pro cesses within galactic nuclei at a level of detail that will never be possible in the more distant, but usually also more spectacular, extragalactic systems. Recent advances in instrumentation from the radio, through the submillime ter and infrared wavebands, and out to the X- and "'(-ray bands now allow observations of the Galactic Center over thirteen orders of magnitude in wave length. Our knowledge about the central few hundred parsecs of our Galaxy has consequently increased vastly over the past decade. The same new instru ments provide high resolution, high quality measurements of nearby ''normal'' galactic nuclei; that is, nuclei whose modest energy output is comparable to that of our own (and most other) galaxies. Theorists, spurred in part by the new observations, have been able to refine models of the energetics, dynam ics, and evolution of the gas and stellar systems deep within galactic nuclei.