Computer Science
Scientific paper
Mar 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984natur.308..158a&link_type=abstract
Nature (ISSN 0028-0836), vol. 308, March 8, 1984, p. 158-160. NASA-supported research.
Computer Science
16
Gamma Rays, Gravitational Waves, Pioneer 10 Space Probe, Solar Oscillations, Fast Fourier Transformations, Least Squares Method, Power Spectra
Scientific paper
Attempts to identify a periodic gravitational wave signal from the binary Geminga in the reduced Doppler data from the Pioneer 10 spacecraft are reported. The study was performed to examine the possibility that the observed 160 min solar oscillation is driven by a gravitational wave from the binary, which has a period exactly one cycle different from the solar oscillation. Three 12 hr passes of Doppler data from Pioneer 10, now beyond the orbit of Neptune, were subjected to FFT analysis to detect a spectral gravitational wave signature. None was found. Least squares analysis of all low noise data from 1981 to characterize the amplitude and phase of a signal from Geminga also produced a null result. Finally, an upper bound was calculated for the polarization component of the potentially observable gravitational strain.
Anderson John D.
Armstrong John W.
Estabrook Frank B.
Hellings Ronald W.
Lau E. K.
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