eCite Digital Repository
Consecutive bright pulses in the vela pulsar
Citation
Palfreyman, JL and Hotan, AW and Dickey, JM and Young, TG and Hotan, CE, Consecutive bright pulses in the vela pulsar, The Astrophysical Journal Letters, 735, (1) Article L17. ISSN 2041-8205 (2011) [Refereed Article]
![]() | PDF Restricted - Request a copy 255Kb |
Copyright Statement
Copyright 2011 The American Astronomical Society
DOI: doi:10.1088/2041-8205/735/1/L17
Abstract
We report on the discovery of consecutive bright radio pulses from the Vela pulsar, a new phenomenon that may lead to a greater understanding of the pulsar emission mechanism. This results from a total of 345 hr worth of observations of the Vela pulsar using the University of Tasmania's 26 m radio telescope to study the frequency and statistics of abnormally bright pulses and sub-pulses. The bright pulses show a tendency to appear consecutively. The observations found two groups of six consecutive bright pulses and many groups of two to five bright pulses in a row. The strong radio emission process that produces the six bright pulses lasts between 0.4 and 0.6 s. The numbers of bright pulses in sequence far exceed what would be expected if individual bright pulses were independent random events. Consecutive bright pulses must be generated by an emission process that is long lived relative to the rotation period of the neutron star.
Item Details
Item Type: | Refereed Article |
---|---|
Keywords: | pulsars: general; pulsars: individual (PSR J0835-4510); radiation mechanisms: non-thermal |
Research Division: | Physical Sciences |
Research Group: | Astronomical sciences |
Research Field: | Galactic astronomy |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding knowledge |
Objective Field: | Expanding knowledge in the physical sciences |
UTAS Author: | Palfreyman, JL (Dr Jim Palfreyman) |
UTAS Author: | Dickey, JM (Professor John Dickey) |
UTAS Author: | Hotan, CE (Mrs Claire Hotan) |
ID Code: | 75067 |
Year Published: | 2011 |
Web of Science® Times Cited: | 5 |
Deposited By: | Mathematics and Physics |
Deposited On: | 2012-01-06 |
Last Modified: | 2017-11-03 |
Downloads: | 0 |
Repository Staff Only: item control page