SIMBAD references

2018MNRAS.478.4433S - Mon. Not. R. Astron. Soc., 478, 4433-4441 (2018/August-3)

GMRT Galactic Plane Pulsar and Transient Survey and the discovery of PSR J1838+1523.

SURNIS M.P., JOSHI B.C., McLAUGHLIN M.A., LORIMER D.R., KRISHNAKUMAR M.A., MANOHARAN P.K. and NAIDU A.

Abstract (from CDS):

We report the results of a blind pulsar survey carried out with the Giant Metrewave Radio Telescope (GMRT) at 325 MHz. The survey covered about 10 per cent of the region between Galactic longitude 45° < l < 135° and Galactic latitude 1° < |b| < 10° with a dwell time of 1800 s, resulting in the detection of 28 pulsars. One of these, PSR J1838+1523, was previously unknown and has a period of 549 ms and a dispersion measure of 68 pc cm–3. We also present the timing solution of this pulsar obtained from multifrequency timing observations carried out with the GMRT and the Ooty Radio Telescope. The measured flux density of this pulsar is 4.3±1.8 and 1.2±0.7 mJy at 325 and 610 MHz, respectively. This implies a spectral index of -2 ±0.8, thus making the expected flux density at 1.4 GHz to be about 0.2 mJy, which would be just detectable in the high-frequency pulsar surveys like the Northern High Time Resolution Universe pulsar survey. This discovery underlines the importance of low-frequency pulsar surveys in detecting steep spectrum pulsars, thus providing complementary coverage of the pulsar population.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): (stars:) pulsars: general - (stars:) pulsars: individual: (PSR J1838+1523) - surveys: astronomical databases

CDS comments: PSRs J0112+66, J2102+38, J2137+64 and J2229+64 are not in Simbad (no coordinates, cf Stovall et al. 2014ApJ...791...67S).

Simbad objects: 37

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2021.03.07-04:53:02

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