Extraterrestrische Astronomie
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Extraterrestrische Astronomie
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Author : R. Lüst
language : de
Publisher: Springer-Verlag
Release Date : 2013-09-03
Extraterrestrische Astronomie written by R. Lüst and has been published by Springer-Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-09-03 with Science categories.
Die Astronomie ist eine der ältesten Wissenschaften. Sie ist die Wissenschaft von den Himmelskörpern und Himmelserscheinungen. Schon seit Jahrtausenden versuchen die Menschen, durch Beobachtung des Himmels die Geheimnisse der Objekte und Vorgänge im Kosmos zu enträtseln. Solange die Geräte und Beob achtungsmethoden im wesentlichen die gleichen waren, wie sie schon Griechen und Araber benutzt hatten, blieb das Arbeitsgebiet der Astronomie auf die Bewe gungslehre der Himmelskörper beschränkt. Im astronomischen Observatorium in Yucatan aus dem 10. Jahrhundert (Abb. 1) und in der mittelalterlichen Stern warte von Jaipur in Indien (Abb. 2) z. B. kann man noch heute die Bauwerke be wundern, mit deren Hilfe der Lauf der Gestirne ohne Fernrohre durch einfache trigonometrische Beobachtung verfolgt wurde. Um die Wende des 17. Jahrhun derts begann mit der Erfindung des Fernrohrs eine neue Ära für die Astronomie. Die Frage, wer das erste Fernrohr konstruierte, ist lange diskutiert worden und wird vielleicht nie endgültig gelöst werden. Als geschichtliche Tatsache steht fest, daß das Fernrohr zuerst in Holland wirklich ausgeführt wurde, aber der Wunsch der Erfinder und Behörden, ein Instrument von so außerordentlichen Eigen schaften möglichst allein auszunutzen, verhinderte die Verbreitung der Kenntnis seiner Konstruktion. Die Ehre, als erster ein Instrument erfunden zu haben, mit dem man in die Ferne sehen könne, wird mit fast gleichem Recht den Holländern Jan LIPPERHEY, Jakob METIUS und Zacharias JANSEN zugesprochen.
Extraterrestrische Astronomie
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Author : Reimar Lüst
language : de
Publisher:
Release Date : 1984
Extraterrestrische Astronomie written by Reimar Lüst and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Astronomical instruments categories.
The New Astronomy
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Author : Nigel Henbest
language : en
Publisher: Cambridge University Press
Release Date : 1996-08-28
The New Astronomy written by Nigel Henbest 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 1996-08-28 with Science categories.
The New Astronomy is a rich kaleidoscope of the finest images of planets, stars, galaxies and the universe. It presents a host of new information, gathered from right across the spectrum: spanning the colourful universe from X-rays, through ultraviolet, visible and infrared, and out to the radio waves. Nigel Henbest and Michael Marten take us on a journey in which we view the variety of the cosmos and its contents through every available window. The first edition of The New Astronomy created a sensation, as no accessible description of modern astronomy had attempted to assemble images from so wide a range. For the new edition there are almost 200 entirely new pictures, selected from the Hubble Space Telescope and orbiting X-ray detectors, as well as from very large telescopes based at Mauna Kea, Hawaii and in the Canary Islands. The new science includes intriguing images from gravitational lenses, which are natural telescopes created by black holes inside other galaxies, and a full description of the latest images of the background radiation of the universe. From the nearby planets to, quite literally, the edge of the observable universe, this book is a brilliant synthesis of all that is new in the astronomy of today. Each object described is displayed in a variety of wavelengths. The non-technical text explains the science behind the objects, and it has been substantially re-written for this second edition.
Extraterrestrische Astronomie
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Author : Reimar Lüst
language : de
Publisher:
Release Date : 1984
Extraterrestrische Astronomie written by Reimar Lüst and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Science categories.
Literature 1984 Part 2
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Author : S. Böhme
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-04-17
Literature 1984 Part 2 written by S. Böhme 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 2013-04-17 with Science categories.
Performance And Blank Components Of A Mass Spectrometric System For Routine Measurement Of Helium Isotopes And Tritium By The 3he Ingrowth Method
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Author : Reinhold Bayer
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Performance And Blank Components Of A Mass Spectrometric System For Routine Measurement Of Helium Isotopes And Tritium By The 3he Ingrowth Method written by Reinhold Bayer 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.
For future studies of oceanic circulation it is necessary to develop the tritium measurement via 3He ingrowth into a routine procedure with a high capacity for efficient use. This paper attempts to demonstrate that this can be achieved using a commercial helium isotope mass spectrometer and special procedures for sample preparation, storage for 3He ingrowth, and 3He transfer from the ingrowth containers into the mass spectrometer. This method allows for measurement with a much higher precision and lower detection limit than is possible with counting techniques. Additionally, the parameters and blanks in routine operation of the system are discussed.
Literature 1982 Part 2
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Author : Siegfried Böhme
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-09
Literature 1982 Part 2 written by Siegfried Böhme 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 2013-11-09 with Science categories.
Astronomy and Astrophysics Abstracts, which has appeared in semi-annual volumes since 1969, is devoted to the recording, summarizing and indexing of astronomical publications throughout the world. It is prepared under the auspices of the International Astronomical Union (according to a resolution adopted at the 14th General Assembly in 1970). Astronomy and Astrophysics Abstracts aims to present a comprehensive documenta tion of literature in all fields of astronomy and astrophysics. Every effort will be made to ensure that the average time interval between the date of receipt of the original literature and publication of the abstracts will not exceed eight months. This time interval is near to that achieved by monthly abstracting journals, compared to which our system of accumu lating abstracts for about six months offers the advantage of greater convenience for the user. Volume 32 contains literature published in 1982 and received before February 11, 1983; some older literature which was received late and which is not recorded in earlier volumes is also included. We acknowledge with thanks contributions to this volume by Dr. J. Bou~a, Prague, who surveyed journals and publications in Czech and supplied us with abstracts in English.
Astronomy And Astrophysics Abstracts
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Author : S. Böhme
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-12-14
Astronomy And Astrophysics Abstracts written by S. Böhme 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 2013-12-14 with Science categories.
Astronomy and Astrophysics Abstracts aims to present a comprehensive documen tation of the literature concerning all aspects of astronomy, astrophysics, and their border fields. It is devoted to the recording, summarizing, and indexing of the relevant publications throughout the world. Astronomy and Astrophysics Abstracts is prepared by a special department of the Astronomisches Rechen-Institut under the auspices of the International Astronomical Union. Volume 34 records literature published in 1983 and received before February 17, 1984. Some older documents which we received late and which are not surveyed in earlier volumes are included too. We acknowledge with thanks contributions of our colleagues all over the world. We also express our gratitude to all organiza tions, observatories, and publishers which provide us with complimentary copies of their publications. Starting with Volume 33, all the recording, correction, and data processing work was done by means of computers. The recording was done by our technical staff members Ms. Helga Ballmann, Ms. Mona El-Choura and Ms. Monika Kohl. Mr. Martin Schlotelburg and Mr. Ulrich Oberall supported our task by careful proofreading. It is a pleasure to thank them all for their encouragement. Heidelberg, March 1984 The Editors Contents Introduction . . . . . . . . . . . . Concordance Relation: ICSU-AB-AAA 3 Abbreviations 10 Periodicals, Proceedings, Books, Activities 001 Periodicals . . . . . . . . . . . 15 002 Bibliographical Publications, Documentation, Catalogues, Atlases 50 003 Books ...... . 58 004 History of Astronomy 67 005 Biography . . 71 006 Personal Notes 73 007 Obituaries . . .
Astronomy With Radioactivities
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Author : Roland Diehl
language : en
Publisher:
Release Date : 1999
Astronomy With Radioactivities written by Roland Diehl and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Cosmic rays categories.
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.