AustralieFrV1, Main, Exploration, bibRecord, 008764

PSR J1410−6132: a young, energetic pulsar associated with the EGRET source 3EG J1410−6147

Identifieur interne : 008764 ( Main/Exploration ); précédent : 008763; suivant : 008765

PSR J1410−6132: a young, energetic pulsar associated with the EGRET source 3EG J1410−6147

Auteurs : J. T. O'Brien [Royaume-Uni] ; S. Johnston [Australie] ; M. Kramer [Royaume-Uni] ; A. G. Lyne [Royaume-Uni] ; M. Bailes [Australie] ; A. Possenti [Italie] ; M. Burgay [Italie] ; D. R. Lorimer [États-Unis] ; M. A. Mclaughlin [États-Unis] ; G. Hobbs [Australie] ; D. Parent [France] ; L. Guillemot [France]

Source :

Monthly Notices of the Royal Astronomical Society: Letters [ 1745-3925 ] ; 2008-07-21.

RBID : ISTEX:2EFE1F0D01196B0393BE4BFE6B3A1EE136B0899E

English descriptors

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 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 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 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.

Url:

DOI: 10.1111/j.1745-3933.2008.00481.x

Affiliations:

Le document en format XML

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<front><div type="abstract" xml:lang="en">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 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 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.</div>
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PSR J1410−6132: a young, energetic pulsar associated with the EGRET source 3EG J1410−6147

PSR J1410−6132: a young, energetic pulsar associated with the EGRET source 3EG J1410−6147

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