Pioneer 10 search for gravitational waves—no evidence for coherent radiation from Geminga

Autor:	E. K. Lau, John D. Anderson, Frank B. Estabrook, R. W. Hellings, John W. Armstrong, Hugo D. Wahlquist
Rok vydání:	1984
Předmět:	Physics Multidisciplinary Gravitational wave Astronomy Observable Astrophysics Polarization (waves) Upper and lower bounds Gravitation symbols.namesake Amplitude Neptune symbols Doppler effect
Zdroj:	Nature. 308:158-160
ISSN:	1476-4687 0028-0836
DOI:	10.1038/308158a0
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::979aeaf1f9f65a2971111b7bf0b6227f https://doi.org/10.1038/308158a0 Zobrazit plný text záznamu