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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. |
| Keywords: | RADIATION MECHANISMS: NONTHERMAL STARS: PULSARS: INDIVIDUAL ALPHANUMERIC: PSR J0437-4715 |
| 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) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 1997 Apj V475 pL33.pdf | 4p. | 689.77 kB | Adobe PDF | View/Open |
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