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Four score years ago...
© JIVE Happy birthday! Eighty years ago (on May 5, 1933) the first radio astronomical publication appeared on the front page of The New York Times. It was about the detection of radio waves from our...
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The GBT 350 MHz drift-scan survey, and the massive relativistic pulsar...
© ASTRON/ESO/Authors In 2007 a global team of astronomers including ASTRON scientists Hessels, Kondratiev and van Leeuwen used the Green Bank Telescope (USA) for a 1,000-hr, 10,000-sq. degree pulsar...
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Dwingeloo-live expands
© Alec Meijerink (CSG Bogerman) Despite its respectable age, the Dwingeloo Telescope still looks impressive and is still very much alive! Several years ago, we started an outreach project named...
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UniBoard accelerates radio astronomy
© ASTRON In the first issue of 2013 of the NWO-magazine Hypothese, Arpad Szomoru (JIVE) and Andr� Gunst (ASTRON) gave an interview about UniBoard, a multifunctional data processing board for radio...
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Today's Colloquium: Radio-FIR correlation: A probe to interplay between star...
© Fatemeh Tabatabaei Recent studies of the correlation between the nonthermal radio continuum and thermal far-infrared (FIR) emission from galaxies shows variations of this correlation as a function of...
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Arnold retires, at least formally
© various Today we mark the formal retirement of Arnold van Ardenne, a giant in the field of radio astronomy technology. For several decades now, he has played a leadership role in the field's...
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A new frontend for APERTIF
© ASTRON This image presents the completely redesigned APERTIF element assembly. Each Phased Array Feed that will be installed in the WSRT will consist of 121 of these active antenna elements. The...
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Today's Colloquium: Relativistic jets: Some unconventional notions; An...
© Dan Harris We argue that most observations of extragalactic jets do not directly inform us of basic jet physics. Rather, the radiation we see comes from plasmas which are produced by the conversion...
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Royal Visit(s) to Dwingeloo
© ASTRON On May 28th 2013, King Willem Alexander and Queen Maxima visited the northern provinces Groningen (in the morning) and Drenthe (in the afternoon). During a lunch with some 100 local and...
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Today's Colloquium: Probing the dark Universe with optical imaging surveys
© The Dark Energy Survey collaboration In this talk I will show the aspirations that we have in probing the Dark Universe with optical imaging surveys, including the hurdles and the statistical...
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Nederlandse Astronomen Conferentie 2013
© ASTRON An enthusiastic ASTRON and JIVE delegation has attended the Dutch Astronomy Conference (NAC). This year it was held on May 15-17 in Belgium (Lommel, actually just a few hundred meters from the...
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Proper Motion of the Young Pulsar in the Supernova Remnant 3C58
© Michael Bietenholz (HRO/York University) Though the supernova remnant 3C58 had long been known as a pulsar wind nebula, the pulsar was not discovered until 2002 in both X-ray and radio. PSR...
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New LOFAR guides complete training course
© ASTRON On Saturday 20 April near the LOFAR telescope in Exloo, after two months of training, seventeen volunteers became official tour guides to the LOFAR core area. The mayor of Exloo, Marco Out,...
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Bert Woestenburg retires with moderate noise
© ASTRON Today, 14 June 2013, ASTRON's most respected low-noise specialist retires. The picture shows Bert (right) together with another low-noise receiver colleague Bou Schipper (rtd) and our former...
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SKA MFFA (mechanical) prototypes at the WSRT
© ASTRON One may (mechanically) design an instrument with great care and still there are many aspects that are difficult to predict. Things like dust, dirt, vegetation, water, bugs, rodents and soil...
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Astronomers use precision pulsar positions to break record
© Astron & Bill Saxton, NRAO/AUI/NSF An international team of scientists led by astronomer Adam Deller (ASTRON) have used the Very Long Baseline Array (VLBA) to set a new distance accuracy record,...
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Demonstration of dynamic Bandwidth on Demand at TNC2013
© JIVE / NEXPReS Last week at the TERENA Networking Conference 2013 in Maastricht, Paul Boven (JIVE), Radek Krzywania (Poznan Supercomputing and Networking Centre) and Tangui Coulouarn (Technical...
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Behold, the first EVN Uniboard Fringes!
© JIVE UniBoard team Last Friday, scan 11 of the L-band NME N11L4 was correlated on the UniBoard EVN correlator. A single 8 MHz subband from three stations was processed, with an integration time of...
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AERAP honours Arnold van Ardenne
© NL SKA Office The African-European Radio Astronomy Platform (AERAP) has awarded Arnold van Ardenne (left) a certificate in recognition of his outstanding engagement and lasting contribution to AERAP....
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The LOFAR Skyline
© MCC If the grass were just a little shorter, you would be able to see the dense collection of LBA and HBA antennas on the LOFAR "Superterp", the heart of the largest telescope in the world. As it is,...
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