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PSR J1410-6132: A young, energetic pulsar associated with EGRET source 3EG J1410-6147

Abstract : We present the discovery of PSR J1410-6132, a 50-ms pulsar found during a high-frequency survey of the Galactic plane, using a 7-beam 6.3-GHz receiver on the 64-m Parkes radio telescope. The pulsar lies within the error box of the unidentified EGRET source 3EG J1410-6147, has a characteristic age of 26 kyr and a spin-down energy of 10^37 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 rad m^-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 gamma-ray efficiency factor of ~10 per cent is sufficient to power the gamma-ray source. We therefore believe 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.
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Contributor : Ludovic Le Noan <>
Submitted on : Monday, October 13, 2008 - 2:47:13 PM
Last modification on : Thursday, January 11, 2018 - 6:12:50 AM

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J.T. O'Brien, S. Johnston, M. Kramer, A.G. Lyne, M. Bailes, et al.. PSR J1410-6132: A young, energetic pulsar associated with EGRET source 3EG J1410-6147. Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2008, 388, pp.L1-L5. ⟨10.1111/j.1745-3933.2008.00481.x⟩. ⟨in2p3-00329814⟩



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