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26 April 2024

» arxiv » astro-ph/0610652

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A very brief description of LOFAR - the Low Frequency Array
H. Falcke ; M.P. van Haarlem ; A.G. de Bruyn ; R. Braun ; H.J.A. Röttgering ; B. Stappers ; W.H.W.M. Boland ; H.R. Butcher ; E.J. de Geus ; L. Koopmans ; R. Fender ; J. Kuijpers ; G.K. Miley ; R.T. Schilizzi ; C. Vogt ; R.A.M.J. Wijers ; M. Wise ; W.N. Brouw ; J.P. Hamaker ; J.E. Noordam ; T. Oosterloo ; L. Bähren ; M.A. Brentjens ; S.J. Wijnholds ; J.D. Bregman ; W.A.van Cappellen ; A.W. Gunst ; G.W. Kant ; J. Reitsma ; K. van der Schaaf ; C.M. de Vos ;
Date:	21 Oct 2006
Abstract:	LOFAR (Low Frequency Array) is an innovative radio telescope optimized for the frequency range 30-240 MHz. The telescope is realized as a phased aperture array without any moving parts. Digital beam forming allows the telescope to point to any part of the sky within a second. Transient buffering makes retrospective imaging of explosive short-term events possible. The scientific focus of LOFAR will initially be on four key science projects (KSPs): 1) detection of the formation of the very first stars and galaxies in the universe during the so-called epoch of reionization by measuring the power spectrum of the neutral hydrogen 21-cm line (Shaver et al. 1999) on the ~5’ scale; 2) low-frequency surveys of the sky with of order $10^8$ expected new sources; 3) all-sky monitoring and detection of transient radio sources such as gamma-ray bursts, x-ray binaries, and exo-planets (Farrell et al. 2004); and 4) radio detection of ultra-high energy cosmic rays and neutrinos (Falcke & Gorham 2003) allowing for the first time access to particles beyond 10^21 eV (Scholten et al. 2006). Apart from the KSPs open access for smaller projects is also planned. Here we give a brief description of the telescope.
Source:	arXiv, astro-ph/0610652
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