Polarization of the binary radio pulsar 1913 + 16 - Constraints on geodetic precession

Details Polarization of the binary radio pulsar 1913 + 16 - Constraints on geodetic precession Polarization of the binary radio pulsar 1913 + 16 - Constraints on geodetic precession

Feb 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...349..546c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 349, Feb. 1, 1990, p. 546-552.

Astronomy and Astrophysics

Astrophysics

49

Binary Stars, Geodetic Accuracy, Magnetic Moments, Pulsars, Emission Spectra, Polarization Characteristics, Spin Dynamics

Scientific paper

Using polarization data, the relative orientations of the line of sight and the pulsar's spin axis and magnetic moment are determined. The data are sensitive enough to allow detection of spin-orbit geodetic precession in a few years if the spin axis is misaligned from the orbital angular momentum vector by more than a few degrees. From the secular pulse shape changes measured by Weisberg, et al. (1989) it is concluded that the misalignment angle is no more than 15 deg but is probably more than 1 deg. A specific beaming model is proposed to account for the pulse shape changes.

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