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LOFAR calibration and wide-field imaging

Tasse, C. (author)
Observatoire de Paris-Meudon
van Diepen, G. (author)
Netherlands Institute for Radio Astronomy (ASTRON)
van der Tol, S. (author)
Universiteit Leiden (UL),Leiden University (UL)
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van Weeren, R. J. (author)
Universiteit Leiden (UL),Leiden University (UL)
van Zwieten, J. E. (author)
Universiteit Leiden (UL),Leiden University (UL)
Batejat, Fabien, 1979 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Bhatnagar, S. (author)
National Radio Astronomy Observatory Socorro
van Bemmel, I. (author)
Netherlands Institute for Radio Astronomy (ASTRON)
Birzan, L. (author)
Universiteit Leiden (UL),Leiden University (UL)
Bonafede, A. (author)
Istituto di Radioastronomia
Conway, John, 1963 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Ferrari, C. (author)
Observatoire de la Cote d'Azur
De Gasperin, F. (author)
Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
Golap, K. (author)
National Radio Astronomy Observatory Socorro
Heald, G. (author)
Netherlands Institute for Radio Astronomy (ASTRON)
Jackson, N. (author)
University of Manchester
Macario, G. (author)
Observatoire de la Cote d'Azur
McKean, J. (author)
Netherlands Institute for Radio Astronomy (ASTRON)
Mohan, N. R. (author)
Universiteit Leiden (UL),Leiden University (UL)
Orru, E. (author)
Rijksuniversiteit Groningen,University of Groningen
Pizzo, R. (author)
Netherlands Institute for Radio Astronomy (ASTRON)
Rafferty, D. (author)
Universiteit Leiden (UL),Leiden University (UL)
Rau, U. (author)
National Radio Astronomy Observatory Socorro
Rottgering, H. (author)
Universiteit Leiden (UL),Leiden University (UL)
Shulevski, A. (author)
Rijksuniversiteit Groningen,University of Groningen
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 (creator_code:org_t)
Elsevier BV, 2012
2012
English.
In: Comptes Rendus Physique. - : Elsevier BV. - 1878-1535 .- 1631-0705. ; 13:1, s. 28-32
Related links:
http://dx.doi.org/10...
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  • Journal article (other academic/artistic)
Abstract Subject headings
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  • LOFAR is a revolutionary instrument, operating at low frequencies (nu less than or similar to 240 MHz). It will drive major breakthroughs in the area of observational cosmology, but its use requires the development of challenging techniques and algorithms. Since its field of view and sensitivity are increased by orders of magnitude as compared to the older generation of instruments, new technical problems have to be addressed. The LOFAR survey team is in charge of commissioning the first LOFAR data produced in the imager mode as part of building the imaging pipeline. We are developing algorithms to tackle the problems associated with calibration (ionosphere, beam, etc.) and wide-field imaging for the achievement of the deep extragalactic surveys. New types of problems arise in that context, and notions such as algorithmic complexity and parallelism become fundamental.

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Keyword

Calibration
Interferometry
Imaging
LOFAR

Publication and Content Type

art (subject category)
vet (subject category)

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