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Optical spectra from the millisecond pulsar triple system
© Image copyright David Kaplan 2014 A group of researchers, at ASTRON and elsewhere, recently reported (daily image) the discovery and initial study of a pulsar with two white dwarf companions. This...
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Changing your profile
© Erwin de BlokOne of the most important properties of a galaxy is its mass. This helps us determine, for example, how much dark matter there is in a galaxy. Radio observations are typically used for...
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PhD thesis defence of Gregory Hellbourg (Orleans)
© ASTRON / CNRS On Friday, January 31st, Greg defended his PhD thesis entitled "Radio Frequency Interference spatial processing for modern radio telescopes" at the University of Orleans (France). This...
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Today's Colloquium: The Galactic Center Weather Forecast
© Monika Moscibrodzka The Galactic center is an ideal laboratory for testing various theoretical models of the magnetized plasma flows onto compact objects. I will present highlights of general...
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Low Noise Tile
© copyright ASTRON The Low Noise Tile (LNT) project aims to demonstrate state-of-the-art noise performance of aperture arrays for the mid-frequency range (MFAA) of the SKA. A recent AJDI of December...
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Olympic Excitement in Dwingeloo
© Madroon Community Consultants (MCC) Last week, a mildly ecstatic crowd of starstruck locals, and a smattering of awestruck others(*), filled the Van de Hulst auditorium to watch the Dutch rule the...
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Im Memoriam Lambert Nieuwenhuis (1946-2014)
© ASTRON On February 19, our former colleague Lambert Nieuwenhuis passed away at the age of 67. Lambert became very ill shortly after his retirement. Because of his good physique and excellent...
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LOFAR HBA repair
© ASTRON The daily image of February 10th showed a severely storm-damaged LOFAR high band antenna (HBA) tile, that had to be transported carefully to a suitable barn. It has now been taken apart, and...
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Ghostbusted
© Rhodes University, SKA SA & ASTRON Selfcal "ghosts" are a mystery with a long ASTRON heritage. They were first spotted by Ger de Bruyn in a 2004 WSRT 92cm observation (bottom panel above). The...
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Today's Colloquium: Harvesting ALFALFA: The Faint End of the Galaxy...
© John Cannon The ALFALFA blind extragalactic HI survey has cataloged tens of thousands of gas-rich galaxies in the local universe and has populated the faint end of the HI mass function with...
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A Moonbounce Wedding by the Dwingeloo Telescope
© Andre van Es / Jan van Muijlwijk They say that young lovers are "over the Moon" with happiness. Last Valentine's Day (14 feb 2014), our Andre van Es and Marit Gant took this almost literally by...
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Inauguration of Marco de Vos at the Hanze University
© Astron On February 19th, ASTRON Managing Director (and former Head of the R&D lab) Dr Marco de Vos has been invested as parttime professor of Computer Science and Sensor Systems at the Hanze...
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First EVN fringes to new NASA JPL digital backend
© NASA/JIVE In a message to EVNtech, Cristina Garcia Miro, our VLBI friend at the Robledo NASA DSN station, writes: "Coinciding with the 50th Anniversary of NASA's Deep Space Network we are very glad...
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Today's Colloquium: Jet production in the nearby universe: testing feedback...
© Anthony Rushton Relativistic feedback from compact objects appears to play a major role in the evolution of galaxies, but understanding the accretion conditions that launch jets still remains poorly...
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A scintillating radio movie
© Ger de Bruyn The two movies above each show a series of 720 images, 6 hours at 30s time resolution, of LOFAR high-band observations of the same EoR-3C196 field, taken in December 2013. The movies are...
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Professor Huib Jan van Langevelde
© Paul Boven Last week, JIVE Director and parttime rock star Dr Huib Jan van Langevelde delivered his oratio, i.e. the public lecture that marks the inauguration of a Professor at a Dutch university....
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MFAA environmental prototypes on their way to the South Africa Karoo SKA site.
© ASTRON The previous daily images (17-06-2013 and 09-09-2013) showed the four environmental prototypes inside the WSRT bouwhal, and the anchor test performed at the South Afrika Karoo SKA site. Since...
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What is the weather like at the LOFAR core?
© LOFAR Members of the LOFAR cosmic ray key science project (RU Nijmegen and Groningen), with the helpful support from Menno Norden and Klaas Stuurwold (ASTRON), have installed a weather station at the...
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Today's colloquium: Detecting Gravitational Waves with Pulsars: Taming the...
© Dan Stinebring, Stelios Kazantzidis Today's colloquium by Dan Stinebring will discuss how ASTRON researchers and colleagues around the world are using pulsars to try and detect gravitational waves...
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M15A pulse profile
© Aard Keimpema Recently a phased array mode has been developed for SFXC, the EVN software correlator. In this mode, the signals from all stations in an experiment are summed coherently rather than...
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