Radio Astronomy and Cosmology PDF
By:D.L. Jauncey
Published on 1977-08-31 by Springer Science & Business Media
337 F(e) = (z) where the angle between the directions III and 112 is equal to 8. r is the angular diameter effective distance of the epoch for recombination. F (8) ~ve have F(e) : f (e) ~ (S| ) e. . ~ is a Bessel function. It is assumed here that the spectrum of gravitational waves takes the form 1\\ hI'::: hoK for all relevant wavelengths, a is beam width of the radio antenna, d\\= d~, and ~ is the duration of the process of recombinations in \\-time. The results for different beam widths are shown in Fig. 1. 338 I. D. NOVIKOV 1-. . . -__ 0. 5 1 1. 5 2 e' 0. 5 o and for a l' (solid line) and Fig. 1. The function f(8) for n for a = 2' (dotted line). These formula should be used in analysing the implications of future observations. Comparison with the observational data now available enables us to establish an upper limit for the energy density of long gravitational waves. This method is most sensitive for gravitational waves with A ~ ct The fluctuations ~; due to these waves have scale ~ 0. 03 GW rec 4 radian. If, according to modern observations, we take ~;
This Book was ranked at 18 by Google Books for keyword Cosmology.
Book ID of Radio Astronomy and Cosmology's Books is 9eRdX_DN0E4C, Book which was written byD.L. Jaunceyhave ETAG "fob7UU25WRE"
Book which was published by Springer Science & Business Media since 1977-08-31 have ISBNs, ISBN 13 Code is 9789027708380 and ISBN 10 Code is 902770838X
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