Abstract
view Abstract Citations (107) References (23) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Evidence for Geodetic Spin Precession in the Binary Pulsar PSR 1913+16 Weisberg, J. M. ; Romani, R. W. ; Taylor, J. H. Abstract Six years of careful observations have revealed a gradual secular evolution in the pulse profile of binary pulsar PSR 1913 + 16. At frequencies near 1400 MHz, the flux density in the first component of the double-peaked profile is decreasing relative to the second component at a rate slightly greater than 1 percent per year. The changes are consistent with the expected rate of general relativistic geodetic precession of the pulsar spin axis. In addition to its relativistic implications, the precessional motion is providing unique two-dimensional information on the structure of the pulsar emission zone. Publication: The Astrophysical Journal Pub Date: December 1989 DOI: 10.1086/168193 Bibcode: 1989ApJ...347.1030W Keywords: Binary Stars; Geodetic Accuracy; Gravitational Fields; Pulsars; Spin Dynamics; Companion Stars; Flux Density; Neutron Stars; Pulse Duration; Stellar Mass; Astrophysics; PULSARS; RELATIVITY; STARS: BINARIES; STARS: INDIVIDUAL ALPHANUMERIC: PSR 1913; 16 full text sources ADS | data products SIMBAD (1)
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