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CEP4 in production
© RO, RUG CIT The RO is proud to announce our newest High Performance Computercluster: CEP4. It is used for the recording and offline processing of LOFAR data that is generated by the COBALT...
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In Memoriam: Arie Hin (1934-2017)
© ASTRON Last week we said goodbye to Arie Hin, who has been very important for the commissioning and smooth operation of ASTRON's succession of world-class radio telescopes for almost half a century....
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Tiny pcb's for Eindhoven University of Technology
© TU/e, 2017. Focal-plane arrays (FPA) have become an interesting alternative for conventional horn-fed reflector antennas in a number of applications, e.g. in radio astronomy and in Ka-band satellite...
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Observing GSH 006-15+7 with the Dwingeloo Telescope
© Vanessa Moss & CAMRAS During my visit to ASTRON in September 2015, I met Harm Munk and Paul Boven who introduced me to the Dwingeloo telescope. We devised a plan to observe a supershell in...
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6th Long-Baseline Busy Week: First long-baseline maps produced entirely...
© Neal Jackson, Marco Iacobelli, Leah Morabito, for the Long Baseline Working Group Busy Week team. The 6th Long Baseline Working Group busy week was held at ASTRON in January and it was attended by 18...
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Today's Colloquium: Blazar jet physics through variability studies and direct...
© Karamanavis et al. 2016, A&A, 586, A60; Karamanavis et al. 2016, A&A 590, A48 Blazars constitute the beamed population of AGN and are the most copious and variable emitters of radiation in...
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Radio receiver geared to going to the Moon
© ASTRON The Netherlands China Long Wavelength Explorer (NCLE) is a radio receiver aimed at observing the low frequency radio sky in lunar (Earth-Moon L2) orbit. NCLE is currently being designed, and...
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A direct localization of a fast radio burst and its host
© Benito Marcote Since the first discovery of a Fast Radio Burst (FRB) in 2007 many searches have been conducted to unveil their nature. While the observed dispersion mesures of these objects pointed...
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First image with Apertif: a new life for the Westerbork radio telescope
© Astron An important milestone for the Westerbork Synthesis Radio Telescope: the first images have been made using a revolutionary new type of receiver, called Apertif. Because of these new receivers,...
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Zooming in on an old AGN remnant with LOFAR
© Aleksandar Shulevski, Raffaella Morganti et al. One of the science cases for LOFAR is discovery and characterization of radio remnants of active galactic nuclei (AGN) - leftovers from past activity...
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Today's Colloquium: How cosmic rays shape galaxies
© Pfrommer in prep. This image shows face-on and edge-on slices through a magneto-hydrodynamical simulation of a Milky Way-sized galaxy that self-consistently follows cosmic ray physics. Shown are gas...
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The AARTFAAC sky
© none? This is a mosaic of images taken from roughly 30 hours of observation with AARTFAAC over the autumn of 2016. AARTFAAC operates in parallel while other users observe with the LOFAR LBA. These...
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GALACTIC PLANE BUSY WEEK
© M Haverkorn, G. White, L. Driessen, R. Oonk, M. Arias The First Galactic Plane Imaging Busy Week is being held this week at the Muller room at ASTRON. The aim is to work on an imaging strategy for...
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Maser jets in a massive star forming region
© RossBurns Continuum image from Palau et al., 2011, ApJ, 743, L32 showing the millimeter cores in the massive star forming region AFGL 5142, where molecular outflows from the literature are indicated...
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The Repeating Fast Radio Burst FRB 121102 as Seen on Milliarcsecond Angular...
© Benito Marcote The European VLBI Network (EVN) observed the repeating Fast Radio Burst FRB 121102 in eight sessions that span 1 February to 21 September 2016. These observations included the regular...
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Today's Colloquium: First results from the analysis of the Gaia Data Release...
© Amina Helmi/Jovan Veljanoski/Maarten Breddels/University of Groningen A new era has begun in Astrophysics driven by the launch of the European satellite Gaia. Gaia is currently mapping our Galaxy by...
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LOFAR MSSS: Discovery of a 2.56 Mpc giant radio galaxy associated with a...
© Alex Clarke et al. LOFAR's Multifrequency Snapshot Sky Survey (MSSS) has resulted in the discovery and detailed study of a new 2.56 Mpc giant radio galaxy (GRG) associated with a disturbed galaxy...
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SKA Software Architecture Workshop
© ASTRON How should we develop the software architecture of such a complex system as the Square Kilometre Array (SKA)? How can we document it in a clear and concise manner? These were the central...
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Characterising pipeline workloads
© R&D Compute group The image shows a possible analysis of the resource usage by pipelines. Understanding how pipelines affect the underlying hardware in a uniform way can for example be used to...
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Systematic effects on LBA phases
© Francesco de Gasperin - Maaijke Mevius Observing at <100 MHz with LOFAR is still challenging, but our understanding of the instrument systematic effects is getting more and more complete. From...
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