The magnetic geometry and radio beam of PSR 1929 + 10

Journal Article · Mon Oct 01 04:00:00 EDT 1990 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/185826· OSTI ID:6174862

Phillips, J A ^[1]

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1. Cornell Univ., Ithaca, NY (USA)

PSR 1929 + 10 exhibits weak radio emission throughout most of its rotational period. To investigate the off-pulse emission, polarization measurements were conducted using the Arecibo 305-m radio telescope. Stokes parameters were obtained covering 75 percent of the pulsar period at 430 MHz and 45 percent at 1665 MHz. The emission geometry of the pulsar was derived by fitting a rotating vector model to the polarization angle swing across the pulse profile. The pulsar presents a nearly aligned geometry. Its magnetic dipole axis is tilted by 31 + or - 2 deg from the spin axis, and the minimum angle between the line of sight and the rotating dipole axis is 20 + or - 2 deg. The main pulse and interpulse are interpreted as two cuts of the line of sight across an elongated polar emission beam. The emission beam has a N-S elongation of about 5:1 at 430 MHz and about 6:1 at 1665 MHz. 15 refs.

• OSTI ID: 6174862
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 361; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANTENNAS
COSMIC RADIO SOURCES
ELECTRICAL EQUIPMENT
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
EMISSION SPECTRA
EQUIPMENT
MAGNETIC FIELD CONFIGURATIONS
MATHEMATICAL MODELS
PLASMA JETS
POLARIZATION
PULSARS
PULSES
RADIATIONS
RADIO EQUIPMENT
RADIO TELESCOPES
RADIOWAVE RADIATION
SPECTRA
TELESCOPES