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MASER 4 K closed cycle refrigerator
© ASTRONNote from the editor: This submission is part of our AJDI reftrofit project, in which we endeavour to collect historic pictures and place them at roughly the correct date, often many years ago....
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Green Flash
© ? The Earth atmosphere is dispersive, i.e. light of different colors is refracted by different angles. The effect is most pronounced when the light travels a long distance through the atmosphere,...
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Today's Colloquium: Unveiling the high-frequency radio source population with...
© Elizabeth Mahony Until recently, the radio sky above 5 GHz was relatively unexplored. This has changed with the completion of the Australia Telescope 20 GHz survey (AT20G; Murphy et al., 2010); a...
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To the Jovian Moons, with PRIDE.
© Picture credit: European Space Agency On 21 February 2013, ESA has announced the outcome of a lengthy selection process for the science composition of its flagship JUpiter ICy moons Explorer mission,...
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Comet PanSTARRS C/2011 L4
© astropix.nl At the moment a comet is visible in the western evening sky, although you might need binoculars to see it clearly. This picture was made on Thursday (March 14 around 8 in the evening)...
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Image processing of M51
© astropix.nl Making pretty pictures of deep-sky objects is a lot of hard work. The good news is that, nowadays, it is within reach of the (hardworking) amateur astronomer. The flash animation gives an...
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The Royal Eise Eisinga Planetarium
© Copyright Roy Smits + Neeraj Gupta On a sunny yet windy Sunday a group of ASTRON astronomers (plus family) made a trip to Franeker to visit the oldest operational planetarium in the world: The Royal...
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Green Science
© MCC Three score years ago, during the fundamental fifties, a certain kind of people complained that the new 25m Dwingeloo dish was an eyesore that polluted the pristine landscape(*). Ever sensitive...
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Today's Colloquium: Unveiling the nature of the unidentified gamma-ray...
© Francesco Massaro About one third of the gamma-ray sources detected by Fermi have still no firmly established counterpart at lower energies. Here I present a new approach to find candidate...
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Greening LOFAR toward Green Science operation
© ASTRON In recent years, the interest in the potential of greening� Science has taken off (see e.g. AJDI 25 Sep 2012). Some thought went into this matter much earlier, at the conception stages of...
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Irbene first e-VLBI fringes with the e-EVN
© JIVE, VIRAC The 32-meter Irbene radio telescope is located near Ventspils, Latvia, close to the Baltic Sea. It is a fully steerable parabolic antenna, operated by the Ventspils International Radio...
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Today's Colloquium: Understanding the evolving galaxies in the Local Universe
© Ivy Wong The Local Universe provides an excellent high-resolution laboratory for studying the detailed processes of star formation and galaxy evolution. In this seminar, I will present some...
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Apertif digital beamformer gets final shape
© Astron The digital beamformer for Apertif is taking shape. It consists of eight ADUs (Analog to Digital converter Units), four UniBoard digital processing units, a PAC (Power And Clock distribution)...
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Holland High-Tech: Top Talent for Top Performance
© ASTRON Dutch companies and knowledge organisations in the top sector of HTSM (High Tech Systems and Materials) set themselves apart by their technological excellence, and are part of the world top in...
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Visit from the Harm Smeengeschool from Beilen
© monique ankone On the 1st of March, the elementary school in Beilen, the Harm Smeengeschool, visited Westerbork. Thanks to pupil Douwe Westerdijk, his whole class won a trip to the famous WSRT...
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OPTICON FP7 phase 2: WP5 kicked-off
© Lars Venema The second phase of the FP7 OPTICON program started on January 1st. On March 26 and 27, the kickoff meeting for Workpackage 5 took place in Budapest, Hungary. The subject of this...
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NWO-M grant for ARTS - the Apertif Radio Transient System
© ASTRON Last week we were officially awarded an NWO-M grant to expand Apertif with a tied-array beamformer and a time-domain back end, thus turning these new receivers into high-speed and very high...
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Today's Colloquium: Detecting accreting HI gas between galaxies
© D. Smyth, CSIRO One of the biggest questions in galaxy formation is how gas from the inter-galactic medium is accreting onto galaxies to fuel star formation. Numerical simulations predict that there...
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SKA - One View of the LFAA
© Swinburne Astronomy Productions/ICRAR/U.Camb./ASTRON This visualization shows U. Camb. SKALA log-periodic dipole antennas deployed at the Murchison Radioastronomy Observatory in Western Australia,...
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ASTRON 01, the first custom designed RF-chip, 1997
© ASTRON In the second half of the late 90's, ASTRON cooperated with Catena electronics in Delft on the design of a quadrature mixer chip in Si-technology for application in the IVC, the IF to Video...
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