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Sökning: WFRF:(van der Hulst J. M.) > Characterising the ...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00007197naa a2200793 4500
001oai:research.chalmers.se:099a8db7-5e4e-45d2-affd-5fd2a77ac1f8
003SwePub
008221125s2022 | |||||||||||000 ||eng|
0247 a https://research.chalmers.se/publication/5333492 URI
0247 a https://doi.org/10.1051/0004-6361/2022440452 DOI
040 a (SwePub)cth
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a Denes, H.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut
2451 0a Characterising the Apertif primary beam response
264 c 2022-11-04
264 1b EDP Sciences,c 2022
338 a electronic2 rdacarrier
520 a Context. Phased array feeds (PAFs) are multi-element receivers in the focal plane of a telescope that make it possible to simultaneously form multiple beams on the sky by combining the complex gains of the individual antenna elements. Recently, the Westerbork Synthesis Radio Telescope (WSRT) was upgraded with PAF receivers to carry out several observing programs, including two imaging surveys and a time-domain survey. The Apertif imaging surveys use a configuration of 40 partially overlapping compound beams (CBs) simultaneously formed on the sky and arranged in an approximately rectangular shape. Aims. This work is aimed at characterising the response of the 40 Apertif CBs to create frequency-resolved I, XX, and YY polarization empirical beam shapes. The measured CB maps can be used for the image deconvolution, primary beam correction, and mosaicking processes of Apertif imaging data. Methods. We used drift scan measurements to measure the response of each of the 40 Apertif CBs. We derived beam maps for all individual beams in I, XX, and YY polarisation in 10 or 18 frequency bins over the same bandwidth as the Apertif imaging surveys. We sampled the main lobe of the beams and the side lobes up to a radius of 0.6 degrees from the beam centres. In addition, we derived beam maps for each individual WSRT dish. Results. We present the frequency and time dependence of the beam shapes and sizes. We compared the compound beam shapes derived with the drift scan method to beam shapes derived with an independent method using a Gaussian Process Regression comparison between the Apertif continuum images and the NRAO VLA Sky Survey (NVSS) catalogue. We find a good agreement between the beam shapes derived with the two independent methods.
650 7a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng
650 7a NATURVETENSKAPx Fysikx Atom- och molekylfysik och optik0 (SwePub)103022 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Atom and Molecular Physics and Optics0 (SwePub)103022 hsv//eng
650 7a MEDICIN OCH HÄLSOVETENSKAPx Klinisk medicinx Radiologi och bildbehandling0 (SwePub)302082 hsv//swe
650 7a MEDICAL AND HEALTH SCIENCESx Clinical Medicinex Radiology, Nuclear Medicine and Medical Imaging0 (SwePub)302082 hsv//eng
653 a instrumentation
653 a methods
653 a telescopes
653 a surveys
653 a detectors
653 a observational
653 a interferometers
653 a instrumentation
7001 a Hess, K. M.u Agencia Estatal Consejo Superior de Investigaciones Científicas,Spanish National Research Council,Rijksuniversiteit Groningen,University of Groningen,Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7001 a Adams, E. A. K.u Rijksuniversiteit Groningen,University of Groningen,Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7001 a Kutkin, A.u Netherlands Institute for Radio Astronomy (ASTRON),Russian Academy of Sciences4 aut
7001 a Morganti, R.u Rijksuniversiteit Groningen,University of Groningen,Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7001 a van der Hulst, J. M.u Rijksuniversiteit Groningen,University of Groningen4 aut
7001 a Oosterloo, T. A.u Netherlands Institute for Radio Astronomy (ASTRON),Rijksuniversiteit Groningen,University of Groningen4 aut
7001 a Moss, V. A.u The University of Sydney,Commonwealth Scientific and Industrial Research Organisation (CSIRO),Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7001 a Adebahr, B.u Ruhr-Universität Bochum4 aut
7001 a de Blok, W. J. G.u Rijksuniversiteit Groningen,University of Groningen,University of Cape Town,Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7001 a Ivashina, Marianna,d 1975u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)ivashina
7001 a Coolen, A. H. W. M.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7001 a Damstra, S.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7001 a Hut, B.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7001 a Loose, G. M.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7001 a Lucero, D. M.u Virginia Polytechnic Institute and State University (Virginia Tech)4 aut
7001 a Maan, Y.u Netherlands Institute for Radio Astronomy (ASTRON),Tata Institute of Fundamental Research4 aut
7001 a Mika, A.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7001 a Norden, M. J.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7001 a Oostrum, L. C.u Universiteit Van Amsterdam,University of Amsterdam,Netherlands eScience Center,Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7001 a Pisano, D. J.u University of Cape Town,West Virginia University4 aut
7001 a Smits, R.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7001 a van Cappellen, W. A.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7001 a van den Brink, R.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7001 a van der Schuur, D.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7001 a van Diepen, G. N. J.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7001 a van Leeuwen, J.u Universiteit Van Amsterdam,University of Amsterdam,Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7001 a Vohl, D.u Netherlands Institute for Radio Astronomy (ASTRON),Universiteit Van Amsterdam,University of Amsterdam4 aut
7001 a Wijnholds, S. J.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7001 a Ziemke, J.u Universitetet i Oslo,University of Oslo,Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7102 a Netherlands Institute for Radio Astronomy (ASTRON)b Agencia Estatal Consejo Superior de Investigaciones Científicas4 org
7730 t Astronomy and Astrophysicsd : EDP Sciencesg 667q 667x 0004-6361x 1432-0746
8564 u https://research.chalmers.se/publication/533349/file/533349_Fulltext.pdfx primaryx freey FULLTEXT
8564 8u https://research.chalmers.se/publication/533349
8564 8u https://doi.org/10.1051/0004-6361/202244045

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