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Related papers: Early Pulsar Observations with LOFAR

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Radio pulses emitted in the atmosphere during the air shower development of high-energy primary cosmic rays were measured during the late 1960ies in the frequency range from 2 MHz to 520 MHz. Mainly due to difficulties with radio…

Astrophysics · Physics 2007-05-23 LOPES Collaboration , A. Horneffer

LOFAR is a new form of radio telescope which can detect radio emission from air showers induced by very high-energy cosmic rays. It can also look for radio emission from particle cascades on the Moon induced by ultra high-energy cosmic rays…

Instrumentation and Methods for Astrophysics · Physics 2015-05-27 S. Thoudam , G. v. Aar , M. v. d. Akker , L. Bähren , A. Corstanje , H. Falcke , J. R. Hörandel , A. Horneffer , C. James , M. Mevius , O. Scholten , K. Singh , S. ter Veen

The Square Kilometre Array (SKA) is an integral part of the next-generation observatories that will survey the Universe across the electromagnetic spectrum, and beyond, revolutionizing our view of fundamental physics, astrophysics and…

During February 2016, CSIRO Astronomy and Space Science and the Max-Planck-Institute for Radio Astronomy installed, commissioned and carried out science observations with a phased array feed (PAF) receiver system on the 64m diameter Parkes…

Instrumentation and Methods for Astrophysics · Physics 2017-07-19 X. Deng , A. P. Chippendale , G. Hobbs , S. Johnston , S. Dai , D. George , M. Kramer , R. Karuppusamy , M. Malenta , L. Spitler , T. Tzioumis , G. Wieching

Detecting and studying pulsars above a few GHz in the radio band is challenging due to the typical faintness of pulsar radio emission, their steep spectra, and the lack of observatories with sufficient sensitivity operating at high…

High Energy Astrophysical Phenomena · Physics 2018-06-29 Pablo Torne

Radio astronomy has experienced phenomenal progress in recent years due to advances in digital technologies and processing speed, the development of new technologies, and the prospect for new powerful facilities A new generation of radio…

Instrumentation and Methods for Astrophysics · Physics 2018-02-26 Eduardo Ros , Dominik J. Schwarz , Christian Vocks

LOFAR, the LOw-Frequency ARray, is a new-generation radio interferometer constructed in the north of the Netherlands and across europe. Utilizing a novel phased-array design, LOFAR covers the largely unexplored low-frequency range from…

Instrumentation and Methods for Astrophysics · Physics 2015-06-15 M. P. van Haarlem , M. W. Wise , A. W. Gunst , G. Heald , J. P. McKean , J. W. T. Hessels , A. G. de Bruyn , R. Nijboer , J. Swinbank , R. Fallows , M. Brentjens , A. Nelles , R. Beck , H. Falcke , R. Fender , J. Hörandel , L. V. E. Koopmans , G. Mann , G. Miley , H. Röttgering , B. W. Stappers , R. A. M. J. Wijers , S. Zaroubi , M. van den Akker , A. Alexov , J. Anderson , K. Anderson , A. van Ardenne , M. Arts , A. Asgekar , I. M. Avruch , F. Batejat , L. Bähren , M. E. Bell , M. R. Bell , I. van Bemmel , P. Bennema , M. J. Bentum , G. Bernardi , P. Best , L. Bîrzan , A. Bonafede , A. -J. Boonstra , R. Braun , J. Bregman , F. Breitling , R. H. van de Brink , J. Broderick , P. C. Broekema , W. N. Brouw , M. Brüggen , H. R. Butcher , W. van Cappellen , B. Ciardi , T. Coenen , J. Conway , A. Coolen , A. Corstanje , S. Damstra , O. Davies , A. T. Deller , R. -J. Dettmar , G. van Diepen , K. Dijkstra , P. Donker , A. Doorduin , J. Dromer , M. Drost , A. van Duin , J. Eislöffel , J. van Enst , C. Ferrari , W. Frieswijk , H. Gankema , M. A. Garrett , F. de Gasperin , M. Gerbers , E. de Geus , J. -M. Grießmeier , T. Grit , P. Gruppen , J. P. Hamaker , T. Hassall , M. Hoeft , H. Holties , A. Horneffer , A. van der Horst , A. van Houwelingen , A. Huijgen , M. Iacobelli , H. Intema , N. Jackson , V. Jelic , A. de Jong , E. Juette , D. Kant , A. Karastergiou , A. Koers , H. Kollen , V. I. Kondratiev , E. Kooistra , Y. Koopman , A. Koster , M. Kuniyoshi , M. Kramer , G. Kuper , P. Lambropoulos , C. Law , J. van Leeuwen , J. Lemaitre , M. Loose , P. Maat , G. Macario , S. Markoff , J. Masters , D. McKay-Bukowski , H. Meijering , H. Meulman , M. Mevius , E. Middelberg , R. Millenaar , J. C. A. Miller-Jones , R. N. Mohan , J. D. Mol , J. Morawietz , R. Morganti , D. D. Mulcahy , E. Mulder , H. Munk , L. Nieuwenhuis , R. van Nieuwpoort , J. E. Noordam , M. Norden , A. Noutsos , A. R. Offringa , H. Olofsson , A. Omar , E. Orrú , R. Overeem , H. Paas , M. Pandey-Pommier , V. N. Pandey , R. Pizzo , A. Polatidis , D. Rafferty , S. Rawlings , W. Reich , J. -P. de Reijer , J. Reitsma , A. Renting , P. Riemers , E. Rol , J. W. Romein , J. Roosjen , M. Ruiter , A. Scaife , K. van der Schaaf , B. Scheers , P. Schellart , A. Schoenmakers , G. Schoonderbeek , M. Serylak , A. Shulevski , J. Sluman , O. Smirnov , C. Sobey , H. Spreeuw , M. Steinmetz , C. G. M. Sterks , H. -J. Stiepel , K. Stuurwold , M. Tagger , Y. Tang , C. Tasse , I. Thomas , S. Thoudam , M. C. Toribio , B. van der Tol , O. Usov , M. van Veelen , A. -J. van der Veen , S. ter Veen , J. P. W. Verbiest , R. Vermeulen , N. Vermaas , C. Vocks , C. Vogt , M. de Vos , E. van der Wal , R. van Weeren , H. Weggemans , P. Weltevrede , S. White , S. J. Wijnholds , T. Wilhelmsson , O. Wucknitz , S. Yatawatta , P. Zarka , A. Zensus , J. van Zwieten

With LOFAR beginning operation in 2008 there is huge potential for studying pulsars with high signal to noise at low frequencies. We present results of observations made with the Westerbork Synthesis Radio Telescope to revisit, with modern…

Astrophysics · Physics 2009-11-13 B. W. Stappers , R. Karuppusamy , J. W. T. Hessels

Air showers from cosmic rays emit short, intense radio pulses. LOFAR is a new radio telescope, that is being built in the Netherlands and Europe. Designed primarily as a radio interferometer, the core of LOFAR will have a high density of…

Instrumentation and Methods for Astrophysics · Physics 2014-11-18 A. Horneffer , L. Bähren , S. Buitink , H. Falcke , J. R. Hörandel , J. Kuijpers , S. Lafebre , A. Nigl , O. Scholten , K. Singh

We investigate the number and type of pulsars that will be discovered with the low-frequency radio telescope LOFAR. We consider different search strategies for the Galaxy, for globular clusters and for galaxies other than our own. We show…

Astrophysics · Physics 2009-06-23 Joeri van Leeuwen , Ben Stappers

LOFAR (the Low Frequency Array), a distributed digital radio telescope with stations in the Netherlands, Germany, France, Sweden, and the United Kingdom, is designed to enable full-sky monitoring of transient radio sources. These…

LOFAR (the Low Frequency Array) is the largest radio telescope in the world for observing low frequency radio emission from 10 to 240 MHz. In addition to its use as an interferometric array, LOFAR is now routinely used to detect cosmic ray…

The sheer number of new gamma-ray pulsar discoveries by the Fermi Large Area Telescope since 2008, combined with the quality of new multi-frequency data, has caused a revolution in the field of high-energy rotation-powered pulsars. These…

High Energy Astrophysical Phenomena · Physics 2018-03-28 Christo Venter , Alice K. Harding , Isabelle Grenier

One of the science drivers of the new Low Frequency Array (LOFAR) is large-area surveys of the low-frequency radio sky. Realizing this goal requires automated processing of the interferometric data, such that fully calibrated images are…

The Low Frequency Array (LOFAR) will operate between 10 and 250 MHz, and will observe the low frequency Universe to an unprecedented sensitivity and angular resolution. The construction and commissioning of LOFAR is well underway, with over…

Radio astronomy is entering the era of large surveys. This paper describes the plans for wide surveys with the LOw Frequency ARray (LOFAR) and their synergy with large surveys at higher frequencies (in particular in the 1-2 GHz band) that…

Cosmology and Nongalactic Astrophysics · Physics 2010-01-15 R. Morganti , H. Rottgering , I. Snellen , G. Miley , P. Barthel , P. Best , M. Bruggen , G. Brunetti , K. Chyzy , J. Conway , M. Jarvis , M. Lehnert

The Low Frequency Array (LOFAR) is a new generation of electronic radio telescope based on aperture array technology and working in the frequency range of 30-240 MHz. The telescope is being developed by ASTRON, and currently being…

Instrumentation and Methods for Astrophysics · Physics 2009-09-18 M. A. Garrett

The Five-hundred-meter Aperture Spherical radio Telescope (FAST) is under construction and will be commissioned in September 2016. A low frequency 7-beam receiver working around 400 MHz is proposed for FAST early science. It will be…

Instrumentation and Methods for Astrophysics · Physics 2014-05-20 Youling Yue , Di Li , Rendong Nan

The LOw Frequency ARray (LOFAR) is a next-generation radio telescope which uses thousands of stationary dipoles to observe celestial phenomena. These dipoles are grouped in various 'stations' which are centred on the Netherlands with…

Solar and Stellar Astrophysics · Physics 2019-08-13 Richard A. Fallows , Ashish Asgekar , Mario M Bisi , Andrew R. Breen , Sander ter Veen

The LOw Frequency ARray (LOFAR) has successfully measured cosmic rays for over a decade now. With its dense core of antenna fields in the Netherlands, it is an ideal tool for studying the radio emission from extensive air showers in the…