Further Searches for RRATs in the Parkes Multi-Beam Pulsar Survey
E. F. Keane (1), D. A. Ludovici (2), R. P. Eatough (1), M. Kramer, (1,3), A. G. Lyne (1), M. A. McLaughlin (2,4), B. W. Stappers (1). (1 -, Jodrell Bank Centre for Astrophysics, University of Manchester, 2 - Dept. of, Physics, University of West Virginia
TL;DR
This paper reports the discovery of 10 new RRATs from the Parkes survey, highlighting the importance of interference excision and discussing the implications for neutron star populations and classification.
Contribution
It presents new RRAT discoveries from re-analyzing the Parkes survey data and discusses their properties and classification challenges.
Findings
Discovered 10 new RRATs in the Parkes survey
Indicates a larger population of transient neutron stars than previously thought
Emphasizes the importance of interference excision in single-pulse searches
Abstract
We describe the steps involved in performing searches for sources of transient radio emission such as Rotating Radio Transients (RRATs), and present 10 new transient radio sources discovered in a re-analysis of the Parkes Multi-beam Pulsar Survey. Followup observations of each new source as well as one previously known source are also presented. The new sources suggest that the population of transient radio-emitting neutron stars, and hence the neutron star population in general, may be even larger than initially predicted. We highlight the importance of radio frequency interference excision for single-pulse searches. Also, we discuss some interesting properties of individual sources and consider the difficulties involved in precisely defining a RRAT and determining where they fit in with the other known classes of neutron stars.
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