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MWA tied-array processing I: Calibration and beamformation
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- Ord, S. M. (author)
- Commonwealth Scientific and Industrial Research Organisation (CSIRO)
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- Tremblay, S. E. (author)
- Curtin University
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- McSweeney, S. J. (author)
- Curtin University
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- (creator_code:org_t)
- 2019-08-02
- 2019
- English.
- In: Publications Astronomical Society of Australia. - : Cambridge University Press (CUP). - 1448-6083 .- 1323-3580. ; 36
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- The Murchison Widefield Array is a low-frequency Square Kilometre Array precursor located at the Murchison Radio-astronomy Observatory in Western Australia. Primarily designed as an imaging telescope, but with a flexible signal path, the capabilities of this telescope have recently been extended to include off-line incoherent and tied-array beam formation using recorded antenna voltages. This has provided the capability for high-time and frequency resolution observations, including a pulsar science program. This paper describes the algorithms and pipeline that we have developed to form the tied-array beam products from the summation of calibrated signals of the antenna elements, and presents example polarimetric profiles for PSRs J0437-4715 and J1900-2600 at 185 MHz.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- general
- pulsars
- techniques
- pulsars
- interferometers
- interferometric
- individual (PSR J0437-4715
- instrumentation
- PSR J1900-2600)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- Ord, S. M.
- Tremblay, S. E.
- McSweeney, S. J.
- Bhat, N. D. R.
- Sobey, C.
- Mitchell, D. A.
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- Hancock, P. J.
- Kirsten, Franz, ...
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- Chalmers University of Technology
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