Radio pulsar spin-down - tests of pulsar models

Journal Article · Wed Feb 01 04:00:00 EST 1989 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/167150· OSTI ID:6064007

Cheng, A F

Braking torques on radio pulsars are investigated for two classes of pulsar magnetosphere models, the so-called standard models with Goldreich-Julian current flow and models with much less current flow on open field lines and magnetic dipole braking. Spindown laws are obtained that include nutation effects due to a nonspherical solid crust. Analytic solutions for pulsar spindown are obtained for a number of cases. The pulsar P-P-dot distribution expected for a given spindown law and initial conditions is obtained by a Monte Carlo method and compared to the observed distribution. Acceptable fits are found for both standard models and magnetic dipole braking models. The form of the radio luminosity is critically important. 32 references.

• Research Organization: Johns Hopkins Univ., Laurel, MD (USA)
• OSTI ID: 6064007
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 337; ISSN ASJOA
• 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
ANALYTICAL SOLUTION
ATMOSPHERES
COMPARATIVE EVALUATIONS
COSMIC RADIO SOURCES
DIPOLES
LUMINOSITY
MAGNETIC DIPOLES
MATHEMATICAL MODELS
MONTE CARLO METHOD
MOTION
MULTIPOLES
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
PULSARS
ROTATION
STAR MODELS
STELLAR ATMOSPHERES
STELLAR MAGNETOSPHERES
TESTING