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Author :
Publisher :
ISBN 13 :
Total Pages : 432 pages
Book Rating : 4.0/5 ( download)
Download or read book International Ultraviolet Explorer - Uniform Low Dispersion Archive written by and published by . This book was released on 1992 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 262 pages
Book Rating : 4.:/5 (112 download)
Download or read book IUE-ULDA (International Ultraviolet Explorer- Uniform Low Dispersion Archive) Access Guide N. 7 written by and published by . This book was released on 1996 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ana I. Goméz de Castro
Publisher :
ISBN 13 :
Total Pages : 368 pages
Book Rating : 4.F/5 ( download)
Download or read book International Ultraviolet Explorer--Uniform Low Dispersion Archive written by Ana I. Goméz de Castro and published by . This book was released on 1997 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book IUE--ULDA Access Guide written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book IUE-ULDA access guide : International Ultraviolet Explorer - Uniform Low Dispersion Archive written by and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ana I. Goméz de Castro
Publisher :
ISBN 13 :
Total Pages : 358 pages
Book Rating : 4.:/5 (652 download)
Download or read book International Ultraviolet Explorer--Uniform Low Dispersion Archive written by Ana I. Goméz de Castro and published by . This book was released on 1997 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Agence spatiale européenne
Publisher :
ISBN 13 : 9789209204594
Total Pages : 226 pages
Book Rating : 4.2/5 (45 download)
Download or read book IUE-ULDA Access Guide written by Agence spatiale européenne and published by . This book was released on 1992 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 115 pages
Book Rating : 4.:/5 (83 download)
Download or read book IUE-ULDA Access Guide No. 6 written by and published by . This book was released on 1995 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Ultraviolet Explorer - Uniform Low Dispersion Archive written by and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Constanze La Dous
Publisher :
ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.:/5 (11 download)
Download or read book IUE-ULDA Access Guide (International Ultra-violet Explorer-Uniform Low-Dispersion Archive) written by Constanze La Dous and published by . This book was released on 1994 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.3/5 ( download)
Download or read book International Ultraviolet Explorer (IUE) NASA Newsletter written by and published by . This book was released on 1989 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. National Aeronautics and Space Administration
Publisher :
ISBN 13 :
Total Pages : 480 pages
Book Rating : 4.:/5 (31 download)
Download or read book NASA Newsletter for International Ultraviolet Explorer (IUE). written by United States. National Aeronautics and Space Administration and published by . This book was released on 1993 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 994 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mark Kidger
Publisher : CUP Archive
ISBN 13 : 9780521663083
Total Pages : 350 pages
Book Rating : 4.6/5 (63 download)
Download or read book Internet Resources for Professional Astronomy written by Mark Kidger and published by CUP Archive. This book was released on 1999-09-28 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive guide to astronomy on the internet written for astronomers and astrophysicists.
Author : International Astronomical Union. Colloquium
Publisher :
ISBN 13 :
Total Pages : 272 pages
Book Rating : 4.3/5 (91 download)
Download or read book Library and Information Services in Astronomy written by International Astronomical Union. Colloquium and published by . This book was released on 1989 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Constanze La Dous
Publisher :
ISBN 13 :
Total Pages : 260 pages
Book Rating : 4.0/5 ( download)
Download or read book Chromospherically Active Binary Stars written by Constanze La Dous and published by . This book was released on 1994 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Willem Wamsteker
Publisher : Springer Science & Business Media
ISBN 13 : 9401107947
Total Pages : 721 pages
Book Rating : 4.4/5 (11 download)
Download or read book Frontiers Of Space And Ground-Based Astronomy written by Willem Wamsteker and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 721 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
