ORCID Profile
0000-0001-8691-8039
Current Organisation
University of Tasmania
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Publisher: Elsevier BV
Date: 12-2008
Publisher: American Astronomical Society
Date: 17-03-2016
Publisher: Springer Science and Business Media LLC
Date: 12-08-2019
Publisher: American Astronomical Society
Date: 09-06-2011
Publisher: Springer Science and Business Media LLC
Date: 04-0004
DOI: 10.1038/S41586-018-0001-X
Abstract: As pulsars lose energy, primarily in the form of magnetic dipole radiation, their rotation slows down accordingly. For some pulsars, this spin-down is interrupted by occasional abrupt spin-up events known as glitches
Publisher: Oxford University Press (OUP)
Date: 28-06-2023
Abstract: Astronomers have studied the Vela pulsar (PSR J0835−4510) for decades. This study analyses almost 100 h of single-pulse data collected over three consecutive days in 2016 and 2020. The work investigates the fascinating phenomena of the earlier arrival of brighter pulses with their increase in peak intensity. We found a hyperbolic relation between them by constructing integrated pulse profiles using flux density intervals and examining the relationship between pulse arrival time and intensity. We identified a phase limit of −0.85 ± 0.0109 ms for the earliest arrival of the brightest pulses. This study offers exciting prospects for further exploring the emission regions responsible for the Vela pulsar’s regular pulses and giant micro-pulses.
Publisher: American Astronomical Society
Date: 26-06-2019
Publisher: American Astronomical Society
Date: 04-09-2019
Publisher: American Physical Society (APS)
Date: 27-09-2019
No related grants have been discovered for Jim Palfreyman.