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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/1408

Title: Coherent Radiation Patterns Suggested by Single-Pulse Observations of a Millisecond Pulsar
Authors: Ables, J.G.
McConnell, D.
Deshpande, A.A.
Vivekanand, M.
Issue Date: 20-Jan-1997
Publisher: The University of Chicago Press for the American Astronomical Society
Citation: Astrophysical Journal Letters, 1997, Vol.475, p.L33-L36
Abstract: We have observed intense radiation spikes from the millisecond pulsar PSR J0437-4715 and find their distribution in pulsar spin phase to be quite unlike the integrated pulse profile. The spikes are observed almost exclusively in a 10° phase window centered on the main pulse. Within that window the phase distribution has a periodic variation, producing a pattern reminiscent of the diffraction fringes associated with coherent emission from a finite aperture. We propose a source model in which the spikes are emitted coherently from a region with spatial scale ap100 m.
URI: http://hdl.handle.net/2289/1408
ISSN: 0004-637X
1538-4357 (online)
Alternative Location: http://dx.doi.org/10.1086/310455
Copyright: (1997) by the American Astronomical Society.
Appears in Collections:Research Papers (A&A)

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