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Parkes observations for project P1010 semester 2019APRS_06
We propose Parkes NAPA radio observations of PSR B1055-52 to be carried out simultaneously with approved X-ray observations by XMM-Newton. We will look for radio-X-ray correlations in the pulse behavior. In particular, we will search for a correlation of the X-ray pulse intensity with the very unusual quasi-periodic on/off change in the radio pulse... more intensity. These quasi-periodic changes on short timescale (about 20 periods) are also phase-locked between interpulse and main pulse, indicating global magnetospheric rearrangements. While radio-X-ray correlations have been detected in two older pulsars, they occur on much longer timescales. PSR B1055-52 provides a rare opportunity to search for the short-term manifestations of similar global processes in the radio and X-ray light curves. This radio- and X-ray- bright pulsar also shows some interesting long-term flux variability which we will investigate. less
Astronomical and Space Sciences not elsewhere classified
01 Apr 2019
30 Sep 2019
Creative Commons Attribution 4.0 International Licence
Posselt, Bettina; Manchester, Dick; Weltevrede, Patrick; Pavlov, George; Dai, Shi (2019): Parkes observations for project P1010 semester 2019APRS_06. v1. CSIRO. Data Collection.
All Rights (including copyright) CSIRO 2019.
Access to this collection's metadata and/or files (if any) are restricted until 30 Mar 2021.
Australia Telescope National Facility
P1010 - Probing for radio - X-ray correlations in the pulse profile of PSRB1055-52
We observe the nearby pulsar B1055-52 in radio to investigate some strange pulse behavior. The radio pulses periodically get bright and then faint. The Parkes radio observations are simultaneously done with X-ray observations that are carried out by the X-ray satellite XMM-Newton. Our main goal is to look for correlations between the radio and X-r... moreay pulses. Because these pulses come from different emission sites we hope to get a better understanding of the reason for the strange pulse behavior of this pulsar. less
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