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The LOFAR Tied-Arra...
The LOFAR Tied-Array All-Sky Survey: Timing of 35 radio pulsars and an overview of the properties of the LOFAR pulsar discoveries
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- Van Der Wateren, E. (author)
- Netherlands Institute for Radio Astronomy (ASTRON),Radboud Universiteit,Radboud University
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- Bassa, C. G. (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Cooper, S. (author)
- University of Manchester
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- Grieβmeier, J. M. (author)
- PSL University Paris,Universite d'Orleans,University of Orléans
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- Stappers, B. W. (author)
- University of Manchester
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- Hessels, J. W. T. (author)
- Anton Pannekoek Institute for Astronomy
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- Kondratiev, V. I. (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Michilli, D. (author)
- Massachusetts Institute of Technology (MIT)
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- Tan, C. M. (author)
- McGill University
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- Tiburzi, C. (author)
- Istituto nazionale di astrofisica (INAF)
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- Weltevrede, P. (author)
- University of Manchester
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- Bak Nielsen, A. S. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Universität Bielefeld,Bielefeld University
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- Carozzi, Tobia, 1966 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Ciardi, B. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Cognard, I. (author)
- PSL University Paris,Universite d'Orleans,University of Orléans
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- Dettmar, R. -J. (author)
- Ruhr-Universität Bochum
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- Karastergiou, A. (author)
- University Of Oxford
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- Kramer, M.A. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),University of Manchester
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- Künsemöller, J. (author)
- Universität Bielefeld,Bielefeld University
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Osłowski, S. (author)
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- Serylak, M. (author)
- University of the Western Cape,SKA Organisation
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- Vocks, C. (author)
- Leibniz-Institut Für Astrophysik Potsdam,Leibniz Institute for Astrophysics Potsdam
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- Wucknitz, O. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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(creator_code:org_t)
- 2023-01-26
- 2023
- English.
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In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 669
- Related links:
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https://research.cha... (primary) (free)
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https://doi.org/10.1...
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Abstract
Subject headings
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- The LOFAR Tied-Array All-Sky Survey (LOTAAS) is the most sensitive untargeted radio pulsar survey performed at low radio frequencies (119-151 MHz) to date and has discovered 76 new radio pulsars, including the 23.5-s pulsar J0250+5854, which up until recently was the slowest spinning radio pulsar known. In this paper, we report on the timing solutions of 35 pulsars discovered by LOTAAS, which include a nulling pulsar and a mildly recycled pulsar, and thereby complete the full timing analysis of the LOTAAS pulsar discoveries. We give an overview of the findings from the full LOTAAS sample of 76 pulsars, discussing their pulse profiles, radio spectra, and timing parameters. We found that the pulse profiles of some of the pulsars show profile variations in time or frequency, and while some pulsars show signs of scattering, a large majority display no pulse broadening. The LOTAAS discoveries have on average steeper radio spectra and longer spin periods (1.4×), as well as lower spin-down rates (3.1×) compared to the known pulsar population. We discuss the cause of these differences and attribute them to a combination of selection effects of the LOTAAS survey as well as previous pulsar surveys, though we cannot rule out that older pulsars tend to have steeper radio spectra.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Keyword
- Pulsars: general
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Van Der Wateren, ...
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Bassa, C. G.
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Cooper, S.
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Grieβmeier, J. M ...
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Stappers, B. W.
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Hessels, J. W. T ...
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show more...
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Kondratiev, V. I ...
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Michilli, D.
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Tan, C. M.
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Tiburzi, C.
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Weltevrede, P.
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Bak Nielsen, A. ...
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Carozzi, Tobia, ...
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Ciardi, B.
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Cognard, I.
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Dettmar, R. -J.
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Karastergiou, A.
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Kramer, M.A.
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Künsemöller, J.
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Osłowski, S.
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Serylak, M.
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Vocks, C.
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Wucknitz, O.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Other Physics To ...
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Astronomy and As ...
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Chalmers University of Technology