skip to main content

SciTech ConnectSciTech Connect

Title: TWO RADIO-EMISSION MECHANISMS IN PSR J0901–4624

We have detected sporadic, bright, short-duration radio pulses from PSR J0901–4624. These pulses are emitted simultaneously with persistent, periodic emission that dominates the flux density when averaging over many periods of the pulsar. The bright pulses have energies that are consistent with a power-law distribution. The integrated profile of PSR J0901–4624 is highly polarized and shows four distinct components. The bright pulses appear to originate near the magnetic pole of the pulsar and have polarization properties unlike those of the underlying emission at the same pulse phase. We conclude that the bright pulses represent a secondary giant-micropulse emission process, possibly from a different region in the pulsar magnetosphere.
Authors:
; ; ;  [1]
  1. CSIRO Astronomy and Space Science, Australia Telescope National Facility, Box 76, Epping, NSW 1710 (Australia)
Publication Date:
OSTI Identifier:
22518985
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal Letters; Journal Volume: 804; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ELECTROMAGNETIC PULSES; FLUX DENSITY; PERIODICITY; POLARIZATION; PULSARS; STARS; STELLAR MAGNETOSPHERES