Independent discovery of a nulling pulsar with unusual sub-pulse drifting properties with the Murchison Widefield Array Article Swipe
S. J. McSweeney
,
N. D. R. Bhat
,
N. A. Swainston
,
K. R. Smith
,
Sanjay Kudale
,
P. J. Hancock
,
W. van Straten
,
Shi Dai
,
R. M. Shannon
,
S. J. Tingay
,
M. Johnston‐Hollitt
,
D. L. Kaplan
,
M. Walker
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3847/1538-4357/ac75bc
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3847/1538-4357/ac75bc
We report the independent discovery of PSR J0027-1956 with the Murchison Widefield Array (MWA) in the ongoing Southern-sky MWA Rapid Two-meter (SMART) pulsar survey. J0027-1956 has a period of ~1.306 s, a dispersion measure (DM) of ~20.869 pc cm^-3 , and a nulling fraction of ~77%. This pulsar highlights the advantages of the survey's long dwell times (~80 min), which, when fully searched, will be sensitive to the expected population of similarly bright, intermittent pulsars with long nulls. A single-pulse analysis in the MWA's 140-170 MHz band also reveals a complex sub-pulse drifting behavior, including both rapid changes of the drift rate characteristic of mode switching pulsars, as well as a slow, consistent evolution of the drift rate within modes. In some longer drift sequences, interruptions in the otherwise smooth drift rate evolution occur preferentially at a particular phase, typically lasting a few pulses. These properties make this pulsar an ideal test bed for prevailing models of drifting behavior such as the carousel model.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- http://arxiv.org/abs/2206.00805
- https://arxiv.org/pdf/2206.00805
- OA Status
- green
- Cited By
- 10
- References
- 63
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4285500402
All OpenAlex metadata
Raw OpenAlex JSON
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https://openalex.org/W4285500402Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3847/1538-4357/ac75bcDigital Object Identifier
- Title
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Independent discovery of a nulling pulsar with unusual sub-pulse drifting properties with the Murchison Widefield ArrayWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2022Year of publication
- Publication date
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2022-06-02Full publication date if available
- Authors
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S. J. McSweeney, N. D. R. Bhat, N. A. Swainston, K. R. Smith, Sanjay Kudale, P. J. Hancock, W. van Straten, Shi Dai, R. M. Shannon, S. J. Tingay, M. Johnston‐Hollitt, D. L. Kaplan, M. WalkerList of authors in order
- Landing page
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https://arxiv.org/abs/2206.00805Publisher landing page
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https://arxiv.org/pdf/2206.00805Direct link to full text PDF
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YesWhether a free full text is available
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greenOpen access status per OpenAlex
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https://arxiv.org/pdf/2206.00805Direct OA link when available
- Concepts
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Pulsar, Physics, Sky, Dispersion (optics), Population, Astrophysics, Pulse (music), Astronomy, Optics, Demography, Detector, SociologyTop concepts (fields/topics) attached by OpenAlex
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10Total citation count in OpenAlex
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2025: 3, 2024: 3, 2023: 3, 2022: 1Per-year citation counts (last 5 years)
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63Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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