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By J. E. Baldwin (auth.), David L. Jauncey (eds.)

337 F(e) = (z) the place the attitude among the instructions III and 112 is the same as eight. r is the angular diameter powerful distance of the epoch for recombination. F (8) ~ve have F(e) : f (e) ~ (S" ) e. . ~ is a Bessel functionality. it really is assumed the following that the spectrum of gravitational waves takes the shape 1\ hI'::: hoK for all correct wavelengths, a is beam width of the radio antenna, d\= d~, and ~ is the length of the method of recombinations in \-time. the implications for various beam widths are proven in Fig. 1. 338 I. D. NOVIKOV 1-. . . -__ zero. five 1 1. five 2 e' zero. five o and for a l' (solid line) and Fig. 1. The functionality f(8) for n for a = 2' (dotted line). those formulation can be utilized in analysing the consequences of destiny observations. comparability with the observational information now to be had permits us to set up an higher restrict for the strength density of lengthy gravitational waves. this technique is such a lot delicate for gravitational waves with A ~ ct The fluctuations ~; because of those waves have scale ~ zero. 03 GW rec four radian. If, in response to smooth observations, we take ~; < 10- , then eight 26 ~GW/Ey < 10- for these gravitational waves that have A = five. 10 cm GW this present day the place Ey is the strength density of relict radiation. The fluctuations ~TT because of lengthy gravitational waves with A = ct .

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