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Although originally discovered as a radio-quiet gamma-ray pulsar, J1732-3131has exhibited intriguing detections at decameter wavelengths. We report anextensive follow-up of the pulsar at 327 MHz with the Ooty radio telescope.Using the previously observed radio characteristics, and with an effectiveintegration time of 60 hrs, we present a detection of the pulsar at aconfidence level of 99.82%. The 327 MHz mean flux density is estimated to be0.5-0.8 mJy, which establishes the pulsar to be a steep spectrum source and oneof the least-luminous pulsars known to date. We also phase-aligned the radioand gamma-ray profiles of the pulsar, and measured the phase-offset between themain peaks in the two profiles to be 0.24$\pm$0.06. We discuss the observedphase-offset in the context of various trends exhibited by the radio-loudgamma-ray pulsar population, and suggest that the gamma-ray emission fromJ1732-3131 is best explained by outer magnetosphere models. Details of ouranalysis leading to the pulsar detection, and measurements of variousparameters and their implications relevant to the pulsar's emission mechanismare presented.

Detection of radio emission from the gamma-ray pulsar J1732-3131 at 327 MHz