The generalized single-vector polarization model for pulsars. II - FITS to published observations

Abstract

view Abstract Citations (7) References (35) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The generalized single-vector polarization model for pulsars. II. Fits to published observations. Ferguson, D. C. Abstract Two types of geometrical models for pulsar polarization were developed previously: the nonrelativistic single-vector model, in which the emission comes from near the neutron star surface, and the relativistic single-vector model, where the emission originates in small regions orbiting the neutron star near the speed-of-light cylinder. In the present paper, the generalized single-vector model is fitted to published polarization data for the Crab and Vela pulsars, the simple pulsars PSR 1642-03 and PSR 0329+54, as well as PSR 0809+74, which exhibits subpulses that drift toward earlier times in the integrated pulse. It is shown that the subpulse polarization variations of all these pulsars may be adequately understood in terms of the relativistic model and that the polarization variations within the subpulses of at least the Crab pulsar and PSR 1642-03 are inconsistent with the nonrelativistic model. The possibility is considered that some pulsars may have two orthogonally polarized emission processes. Publication: The Astrophysical Journal Pub Date: October 1976 DOI: 10.1086/154757 Bibcode: 1976ApJ...209..606F Keywords: Polarization Characteristics; Pulsars; Relativistic Theory; Stellar Models; Astrophysics; Crab Nebula; Neutron Stars; Stellar Radiation; Astrophysics full text sources ADS | data products SIMBAD (6)