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Tytuł:
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Radio Astronomical Antennas in the Central African Region to Improve the Sampling Function of the VLBI Network in the SKA Era?
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Autorzy:
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Atemkeng M; Department of Mathematics, Rhodes University, Artillery Rd, Grahamstown 6139, South Africa.
Okouma P; Department of Mathematics, Rhodes University, Artillery Rd, Grahamstown 6139, South Africa.; Gabon Space Agency, Libreville P.O. Box 3850, Gabon.
Maina E; Department of Physics and Electronics, Rhodes University, Grahamstown 6139, South Africa.
Ianjamasimanana R; Instituto de Astrofísica de Andalucía (CSIC), Glorieta de la Astronomía, E-18008 Granada, Spain.
Zambou S; Semiconductor Development Division, Beneq Oy, Olarinluoma 9, 02200 Espoo, Finland.
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Źródło:
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Sensors (Basel, Switzerland) [Sensors (Basel)] 2022 Nov 03; Vol. 22 (21). Date of Electronic Publication: 2022 Nov 03.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Original Publication: Basel, Switzerland : MDPI, c2000-
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MeSH Terms:
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Astronomy*
Interferometry*
Humans ; Central African Republic ; Congo ; Cameroon
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References:
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Nature. 2017 Jul 24;547(7664):391-392. (PMID: 28748946)
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Contributed Indexing:
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Keywords: radio astronomy; radio interferometer; square kilometre array; very long baseline interferometry
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Entry Date(s):
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Date Created: 20221111 Date Completed: 20221114 Latest Revision: 20221117
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Update Code:
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20240104
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PubMed Central ID:
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PMC9658139
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DOI:
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10.3390/s22218466
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PMID:
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36366161
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On the African continent, South Africa has world-class astronomical facilities for advanced radio astronomy research. With the advent of the Square Kilometre Array project in South Africa (SA SKA), six countries in Africa (SA SKA partner countries) have joined South Africa to contribute towards the African Very Long Baseline Interferometry (VLBI) Network (AVN). Each of the AVN countries aims to construct a single-dish radio telescope that will be part of the AVN, the European VLBI Network, and the global VLBI network. The SKA and the AVN will enable very high sensitivity VLBI in the southern hemisphere. In the current AVN, there is a gap in the coverage in the central African region. This work analyses the increased scientific impact of having additional antennas in each of the six countries in central Africa, i.e., Cameroon, Gabon, Congo, Equatorial Guinea, Chad, and the Central African Republic. A number of economic human capital impacts of having a radio interferometer in central Africa are also discussed. This work also discusses the recent progress on the AVN project and shares a few lessons from some past successes in ground stations retrofitting.
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