The Search for and Confirmation of Nearby RRAT Candidates

Computer Science

Scientific paper

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Stellar, Galactic, Parkes

Scientific paper

Rotating RAdio Transients (RRATs) are a newly discovered population of neutron stars exhibiting narrow (2-30 ms), bright (up to 3.6 Jy) bursts of emission with underlying periodicties of between 0.7-7 s. These new sources, discovered in the Parkes Multi-beam Pulsar Survey (PMPS) pose many questions of our understanding of neutron stars in our Galaxy. They show odd emission properties which we cannot yet explain with emission spectra seemingly completely different to that of pulsars. Furthermore it seems that there are a huge number of RRATs in the Galaxy - possibly more than the population of radio pulsars. In order to understand and explain this new population the first step is to find more sources - especially those nearby sources which we believe were missed in the initial PMPS analysis due to the effects of RFI. With the aid of a new RFI removal scheme (which we call zero DM filtering) we believe we can find these nearby sources by re-processing the PMPS and we request time to follow up and confirm the candidates from this re-processing. In total we request 80 hrs of observation time this semester.

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