A Study of the Neutral Hydrogen Distribution in the Milky Way, Through 21 CM Emission and Lyman ̉absorption PDF Download
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Author: Athanassios Diplas
Publisher:
ISBN:
Category :
Languages : en
Pages : 430
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Book Description
Author: Athanassios Diplas
Publisher:
ISBN:
Category :
Languages : en
Pages : 430
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 652
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Author: Michael Paul Hughes
Publisher:
ISBN:
Category : Hydrogen
Languages : en
Pages : 366
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Book Description
Author: Harry Edward Payne
Publisher:
ISBN:
Category : Hydrogen, Neutral
Languages : en
Pages : 380
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Author: Michael Paul Hughes
Publisher:
ISBN:
Category : Interstellar hydrogen
Languages : en
Pages : 86
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Book Description
The paper describes observations of galactic 21-cm line absorption in the spectra of ninety-seven radio sources made with the two-element interferometer at the Owens Valley Radio Observatory. Measurements of 21-cm absorption are of fundamental importance because they yield directly information on the optical depth of the galactic hydrogen. Almost all of the many studies of the 21-cm line are concerned with observations in emission, and require assumptions concerning the optical depth before the data can be interpreted in terms of the temperature or columnar density of the gas.
Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 680
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Book Description
Author: Hannu Karttunen
Publisher: Springer
ISBN: 3662530457
Category : Science
Languages : en
Pages : 548
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Book Description
Fundamental Astronomy is a well-balanced, comprehensive introduction to classical and modern astronomy. While emphasizing both the astronomical concepts and the underlying physical principles, the text provides a sound basis for more profound studies in the astronomical sciences. This is the fifth edition of the successful undergraduate textbook and reference work. It has been extensively modernized and extended in the parts dealing with extragalactic astronomy and cosmology. You will also find augmented sections on the solar system and extrasolar planets as well as a new chapter on astrobiology. Long considered a standard text for physical science majors, Fundamental Astronomy is also an excellent reference work for dedicated amateur astronomers.
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 816
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Author: Prof Peter Coles
Publisher: John Wiley & Sons
ISBN: 0470852992
Category : Science
Languages : en
Pages : 514
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Book Description
This is the 2nd edition of a highly successful title on thisfascinating and complex subject. Concentrating primarily on thetheory behind the origin and the evolution of the universe, andwhere appropriate relating it to observation, the new features ofthe this addition include: An overall introduction to the book Two new chapters: Gravitational Lensing and GravitationalWaves Each part has a collection of exercises with solutions tonumerical parts at the end of the book Contains a table of physical constants The addition of a consolidated bibilography
Author: John Miller Dickey
Publisher:
ISBN:
Category : Interstellar hydrogen
Languages : en
Pages : 416
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Book Description
