Sign on

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 (84) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
· Translate This Page
A curvature-radiation-pair-production model for gamma-ray pulsars
Harding, A. K.; Tademaru, E.; Esposito, L. W.
AA(Massachusetts, University, Amherst, Mass.), AB(Massachusetts, University, Amherst, Mass.), AC(Massachusetts, University, Amherst, Mass.)
Astrophysical Journal, Part 1, vol. 225, Oct. 1, 1978, p. 226-236. (ApJ Homepage)
Publication Date:
NASA/STI Keywords:
Gamma Rays, Pair Production, Pulsars, Stellar Models, Approximation, Magnetospheres, Neutron Stars, Optical Thickness, Positrons, Pulse Amplitude, Pulse Duration, Pulsed Radiation, Radiation Spectra, Ray Tracing, Stellar Magnetic Fields, Stellar Rotation
Bibliographic Code:


On the assumptions that pulsar gamma-rays are produced via curvature radiation of primary electrons near the neutron star and are attenuated only through the pair-production process in strong electric and magnetic fields, a detailed model of the magnetosphere is used to calculate the resulting optical depths and pulse shapes. The effect of both zero and nonzero Ex B on the attenuation of the photons is considered along with the effect of photon energy, rotation rate, and obliquity on the pulse shapes. It is found that pulsar rotation tends to increase pair production, causing large optical depths for the shortest-period pulsars. The calculations also predict high-energy cutoffs and spectra for the observable gamma-ray emission.

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