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- PSR J1410-6132: a young, energetic pulsar associated with the EGRET source 3EG J1410-6147
- O'Brien, J. T.; Johnston, S.; Kramer, M.; Lyne, A. G.; Bailes, M.; Possenti, A.; Burgay, Marta; Lorimer, Duncan R.; McLaughlin, Maura A.; Hobbs, George B.; Parent, D.; Guillemot, L.
- We present the discovery of PSR J1410−6132, a 50-ms pulsar found during a high-frequency survey of the Galactic plane, using a seven-beam 6.3-GHz receiver on the 64-m Parkes radio telescope. The pulsar lies within the error box of the unidentified Energetic Gamma Ray Experiment Telescope (EGRET) source 3EG J1410−6147, has a characteristic age of 26 kyr and a spin-down energy of 1037 erg s−1. It has a very high dispersion measure of 960 ± 10 cm−3 pc and the largest rotation measure of any pulsar, RM = +2400 ± 30 radm−2. The pulsar is very scatter-broadened at frequencies of 1.4 GHz and below, making pulsed emission almost impossible to detect. Assuming a distance of 15 kpc, the pulsar’s spin-down energy and a γ -ray efficiency factor of ∼10 per cent is sufficient to power the γ -ray source. We therefore believe that we have identified the nature of 3EG J1410−6147. This new discovery suggests that deep targeted high-frequency surveys of inner-galaxy EGRET sources could uncover further young, energetic pulsars.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Information and Communication Technologies. Centre for Astrophysics and Supercomputing
- Monthly Notices of the Royal Astronomical Society, Vol. 388, no. 1 (Jul 2008), pp. L1-L5
- Publication year
- Wiley-Blackwell Publishing
- Publisher URL
- Copyright © 2008 The Authors. Journal compilation copyright © 2008 Royal Astronomical Society. The accepted manuscript is reproduced in accordance with the copyright policy of the publisher. The definitive publication is available at www.interscience.wiley.com.