Gravitational Radiation and the Binary Pulsar
Abstract
The paper summarizes results of timing observations of PSR 1913+16 made with the 305m telescope at the Arecibo Observatory at frequencies near 430 and 1410 MHz. About 1000 observations spanning 4.1 years were made; each observation consisted of averaging together about 5000 pulses to provide a useful SNR by making use of precomputed ephemeris to define the expected pulsation period. The resulting profile was then fitted to a template or standard profile by the method of least squares to determine a precise arrival time. An orbitperiod derivative of (3.2 + or  0.6) x 10 to the 12th s/s was obtained from the timing data. It is concluded that the most straightforward interpretation of this measurement of the orbitperiod derivative is that gravitational waves exist and carry energy away from this orbiting system at a rate consistent with the predictions of general relativity.
 Publication:

Gravitational Radiation, Collapsed Objects and Exact Solutions
 Pub Date:
 1980
 DOI:
 10.1007/3540099921_98
 Bibcode:
 1980LNP...124....5M
 Keywords:

 Binary Stars;
 Gravitational Waves;
 Pulsars;
 Relativity;
 Stellar Radiation;
 Curve Fitting;
 Energy Transfer;
 Ephemeris Time;
 Least Squares Method;
 Signal To Noise Ratios;
 Time Measurement;
 Astrophysics