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Today's Colloquium: The Jodrell Bank 966 MHz Survey and Optical Identifications
© Richard Porcas (MPIfR)Note the unusual day and the unusual time: 15:00!I will describe the hunt for new quasars made by the Jodrell Bank Survey Group in the 1970's. This involved a new radio survey...
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Hardware for APERTIF
© ASTRON During the past two years, lots of hardware has been designed and built for the WSRT/APERTIF project. These images give an impression of some of the control hardware. Even though not every...
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The Disturbed Galaxy NGC 4414
© Erwin de Blok The picture shows WSRT observations of the neutral hydrogen gas in galaxy NGC 4414, overlaid on a background optical image. NGC 4414 was observed as part of the HALOGAS survey. This...
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Best paper award at ISC 2014
© ASTRON/DOME The International Supercomputing Conference (ICS) is Europe's biggest conference in the field of High Performance Computing. Over 2500 attendees from academia and industry traveled to...
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ASTRON Bike To Work Day 2014
© JvL On Monday June 16, a group of ASTRON-ners that live farther away left their cars and train cards at home, to bike to ASTRON. In the image above you can see the stylized tracks, overlaid on the...
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Dutch Ambassador visits ICRAR to talk about SKA
© Jean-Pierre Macquart On Monday 7 July the Dutch Ambassador to Australia, Mrs Annemieke Ruigrok, paid an impromptu visit to ICRAR/Curtin University, Perth. The Ambassador was accompanied by Mr Rolf...
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Apertif QDR correlator ready for testing
© Astron Recently, four UniBoards have been installed in Westerbork for APERTIF. These UniBoards are configured as correlators and are able to correlate 28 beams over the full 300 MHz bandwidth of 3...
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South African delegation visit Dwingeloo
© JIVE, Arnold van Ardenne On 15 July 2014 a South African delegation visited Astron and JIVE. The goal of this visit was to strengthen partnership between South Africa and The Netherlands in astronomy...
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The Nature of Filamentary Cold Gas in the Core of the Virgo Cluster
© N. Werner (Stanford University) A study led by N. Werner (Stanford University) and J.B.R. Oonk (ASTRON) discovered for the first time the cold gas component of the filamentary H-alpha web surrounding...
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Big Data Analytics and Cognitive Computing: coming to observatory near you!
© ASTRON The days of the lone astronomer with his optical telescope and photographic plates are long gone. The future of astronomy will not only be multi-wavelength, but multi-messenger in nature,...
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Get-together of the PhD students
© astron On June 5th, we had the third get-together of the PhD students that are supervised by the astronomers at ASTRON. Thanks to the various personal grants (like ERC) and the collaboration with...
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The Standalone Selfcal Tool (SST)
© A.shulevski, R.Morganti, N.Vilchez This image(*) of a LOFAR HBA observation centrered on J1441+1331 was generated by the Standalone Selfcal Tool (SST) that is part of the LOFAR imaging pipeline. It...
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ASTRON/JIVE MTB 2014
© JvL/EK On Wednesday June 18 the annual ASTRON/JIVE MTB afternoon celebrated its fifth anniversary, and thus featured a special program: a talk and clinic by the first Olympic Champion MTB, Bart...
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LED it be - 3D prototyping
© foto: Wim van Cappellen / Ronald Halfwerk Again, ASTRON's 3D printer proved to be very useful for making complex 3D geometrical shapes available during the design phase of an instrument. Tom...
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Twinkle, twinkle, little star...
© David Kaplan et al. "...like a diamond in the sky". If you believe your nursery rhymes, then stars should twinkle like diamonds in the sky. Reality, however, has shown us quite the opposite: it is...
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LOFAR images of polarized emission from our Galaxy
© Vibor Jelic The presence of polarized foregrounds is a serious complication for epoch of reionization (EoR) experiments. To avoid the leakage of polarized emission into total intensity, which can...
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LOFAR's Calibration & Imaging Tiger Team (CITT) reflects on a Year of Progress
© LOFAR CITT About a year ago, a small group of expert developers was assembled in order to update the capability of the LOFAR Standard Imaging Pipeline (SIP), which is used to automatically form...
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Astronomy Pretty Poster Pageant (APPP) 2014
© Authors/Noordam To celebrate and decorate their revamped wing of the building, the Astronomy Group recently organized the "Astronomy Pretty Poster Pageant (APPP) 2014", for catchy, visual, and...
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MATISSE N-band shipped to Nice
© NOVA Optical Infrared Instrumentation group at ASTRON The NOVA Optical Infrared instrumentation group at ASTRON is responsible for the two Cold Optics Benches (COB) of MATISSE. Last week the N-band...
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A contingent from South Africa's RATT group
© Iniyan Natarajan Since May, four members of the Radio Astronomy Techniques and Technologies group(*) of Rhodes University (South Africa) have been based at ASTRON(**), working on various projects...
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