2004A&A...417L..29P


C.D.S. - SIMBAD4 rel 1.7 - 2020.09.18CEST10:34:25

2004A&A...417L..29P - Astronomy and Astrophysics, volume 417, L29-32 (2004/4-1)

Toward explanation of microstructure in pulsar radio emission.

PETROVA S.A.

Abstract (from CDS):

Propagation of relativistically beamed radio photons through the ultrarelativistic highly magnetized plasma of pulsar magnetosphere is considered. The photons are found to be subject to an additional strong focusing inside the beam because of induced Compton scattering off the plasma particles. Incorporating this focusing effect is shown to improve on the angular beaming model of pulsar microstructure. For the typical conditions in the scattering region, the photon beam appears up to a few hundred times squeezed and its size becomes compatible with the observed micropulse widths. The induced Compton scattering can also account for the polarization properties of micropulses. Furthermore, given a favourable observational geometry, the focusing effect can explain the giant micropulses observed in the Vela and some other pulsars.

Abstract Copyright:

Journal keyword(s): plasmas - waves - scattering - pulsars: general

Simbad objects: 3

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Number of rows : 3

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 PSR B0950+08 Psr 09 53 09.3 +07 55 36           ~ 694 2
2 PSR B1133+16 Psr 11 36 03.180 +15 51 09.62           ~ 610 0
3 PSR B1929+10 Psr 19 32 13.79 +10 59 33.2           ~ 696 0

    Equat.    Gal    SGal    Ecl

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2020.09.18-10:34:25

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