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Targeted search for young radio pulsars in the SMC: discovery of two new pulsars

Targeted search for young radio pulsars in the SMC: discovery of two new pulsars
Targeted search for young radio pulsars in the SMC: discovery of two new pulsars
We report the first rotation powered pulsars discovered in the Small Magellanic Cloud (SMC) in more than a decade. PSR J0043-73 and PSR J0052-72 were discovered during a Parkes Multi-Beam (PMB) survey of MCSNR J0127-7332, and five new, optically selected, supernova remnant (SNR) candidates identified by the XMM Newton survey. In addition to the candidates, we adjusted the PMB rotation to include an additional nine SNRs and pulsar wind nebulae. We searched for young pulsars (1-200 ms) employing a Fourier analysis with PRESTO, as well as a search for longer period pulsars (200ms-360 s) with a fast folding algorithm. Our targeted survey had a limiting flux density of 0.039 mJy for periods greater than 50 ms. Although not the main target of this search it was also sensitive to millisecond pulsars. PSR J0043-73 has a period and dispersion measure of 937.42937 (26) ms and 115.1 (3.4) pc cm^-3 respectively, and PSR J0052-72 has a period of 191.444328 (46) ms and a DM of 158.6 (1.6) pc cm^-3.
0035-8711
4332-4342
Titus, N.
d580c20b-6d6f-4918-9569-a4548ae1171c
Stappers, B. W.
77a0f436-0f99-487d-91bf-4870945a1fd4
Morello, V.
4ea7a963-04d3-43c8-8177-0df58b3a4c7e
Caleb, M.
103ff4a2-2679-4f42-bfd9-e8c866e86384
Filipovic, M.D.
594ce164-6912-4746-9a8f-0c319be9e140
McBride, V.A.
aee41ff6-54d9-4160-a59d-eced7ef45bd7
Ho, W.C.G.
d78d4c52-8f92-4846-876f-e04a8f803a45
Buckley, D.A.H.
219e118a-8a7d-4a68-826c-3df498795832
Titus, N.
d580c20b-6d6f-4918-9569-a4548ae1171c
Stappers, B. W.
77a0f436-0f99-487d-91bf-4870945a1fd4
Morello, V.
4ea7a963-04d3-43c8-8177-0df58b3a4c7e
Caleb, M.
103ff4a2-2679-4f42-bfd9-e8c866e86384
Filipovic, M.D.
594ce164-6912-4746-9a8f-0c319be9e140
McBride, V.A.
aee41ff6-54d9-4160-a59d-eced7ef45bd7
Ho, W.C.G.
d78d4c52-8f92-4846-876f-e04a8f803a45
Buckley, D.A.H.
219e118a-8a7d-4a68-826c-3df498795832

Titus, N., Stappers, B. W., Morello, V., Caleb, M., Filipovic, M.D., McBride, V.A., Ho, W.C.G. and Buckley, D.A.H. (2019) Targeted search for young radio pulsars in the SMC: discovery of two new pulsars. Monthly Notices of the Royal Astronomical Society, 487 (3), 4332-4342. (doi:10.1093/mnras/stz1578).

Record type: Article

Abstract

We report the first rotation powered pulsars discovered in the Small Magellanic Cloud (SMC) in more than a decade. PSR J0043-73 and PSR J0052-72 were discovered during a Parkes Multi-Beam (PMB) survey of MCSNR J0127-7332, and five new, optically selected, supernova remnant (SNR) candidates identified by the XMM Newton survey. In addition to the candidates, we adjusted the PMB rotation to include an additional nine SNRs and pulsar wind nebulae. We searched for young pulsars (1-200 ms) employing a Fourier analysis with PRESTO, as well as a search for longer period pulsars (200ms-360 s) with a fast folding algorithm. Our targeted survey had a limiting flux density of 0.039 mJy for periods greater than 50 ms. Although not the main target of this search it was also sensitive to millisecond pulsars. PSR J0043-73 has a period and dispersion measure of 937.42937 (26) ms and 115.1 (3.4) pc cm^-3 respectively, and PSR J0052-72 has a period of 191.444328 (46) ms and a DM of 158.6 (1.6) pc cm^-3.

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1906.04592 - Accepted Manuscript
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Accepted/In Press date: 4 June 2019
e-pub ahead of print date: 10 June 2019
Published date: August 2019

Identifiers

Local EPrints ID: 431928
URI: http://eprints.soton.ac.uk/id/eprint/431928
ISSN: 0035-8711
PURE UUID: 308e83e9-8719-4bab-8e21-c08d8853d7ce
ORCID for W.C.G. Ho: ORCID iD orcid.org/0000-0002-6089-6836

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Date deposited: 21 Jun 2019 16:30
Last modified: 12 May 2020 00:31

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