Sign on
ADS Classic is now deprecated. It will be completely retired in October 2019. Please redirect your searches to the new ADS modern form or the classic form. More info can be found on our blog.

SAO/NASA ADS Astronomy Abstract Service


· Find Similar Abstracts (with default settings below)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· References in the article
· Citations to the Article (1749) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (5)
· Also-Read Articles (Reads History)
· HEP/Spires Information
·
· Translate This Page
Title:
Theory of pulsars - Polar caps, sparks, and coherent microwave radiation
Authors:
Ruderman, M. A.; Sutherland, P. G.
Affiliation:
AA(Columbia University, New York, N.Y.), AB(Columbia University, New York, N.Y.)
Publication:
Astrophysical Journal, vol. 196, Feb. 15, 1975, pt. 1, p. 51-72. (ApJ Homepage)
Publication Date:
02/1975
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Coherent Electromagnetic Radiation, Neutron Stars, Pulsars, Stellar Atmospheres, Stellar Magnetic Fields, Angular Momentum, Astronomical Catalogs, Electron-Positron Pairs, Lines Of Force, Magnetospheres, Microwaves, Positrons, Relativistic Particles, Stellar Envelopes, Stellar Evolution
DOI:
10.1086/153393
Bibliographic Code:
1975ApJ...196...51R

Abstract

Several consequences are derived for a neutron star whose magnetic moment tends to be antiparallel to its spin angular momentum, when emitted electrons do not return to the star through the light cylinder along the open field lines. A polar magnetospheric gap is formed that spans the open field lines from the stellar surface up to an altitude of about 10,000 cm. The scalar product of the electric and magnetic fields is nonzero in the gap, although it vanishes essentially everywhere else in the near magnetosphere. The potential difference between the base and the top of the gap is about 1 trillion volts. The gap continually breaks down by forming electron-positron pairs on a time scale of a few microseconds. The gap positrons move out along the open field lines and electrons flow to the stellar surface to close the pulsar's homopolar generator circuit. The proposed model can explain many characteristics of the coherent microwave radiation observed from pulsars.

Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences



More Article Retrieval Options

HELP for Article Retrieval


Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)


Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints