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Not every piece of sky is the same: the LOFAR Lockman Hole project
© ASTRON Some of the high-priority pointings of LOFAR have been on famous fields. These have the advantage to be well observed with many different telescopes covering many wavelength regions such as...
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3D-printed focus for Gridpix detector
© ASTRON, NIKHEF After several experiments with different materials, the ASTRON instrument shop has successfully 3D-printed five parts of a 2x2 focus array for the Gridpix detector that is in...
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Horsehead Nebula
© Albert van Duin A recent Daily Image featured the Lynx Astrograph, designed and built by Rik ter Horst of ASTRON-NOVA. During the summer holidays I had the opportunity to do a night of imaging with...
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Stefan Wijnholds: Professor Extraordinary
© ASTRON The University of Stellenbosch (South Africa) has appointed our very own Stefan Wijnholds as Extraordinary(*) Associate Professor. The appointment letter states that "the University created...
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Today's Colloquium: The impact of warm outflows in rapidly evolving galaxies...
© Spence et al., 2016, MNRAS, 459, L16 There has been much speculation that AGN-driven outflows are an important process in galaxy evolution, regulating the shape of the high luminosity end of the...
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Jacqueline van Gorkom: 2016 Jansky Lecturerer
© SKA The highly prestigious Jansky Lectureship has been awarded this year to our very own Jacqueline van Gorkom. She is one of the "golden crop" of uncommonly succesful Dutch female astronomers, which...
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Measuring dielectric properties of materials
© ASTRON Outdoor phased array antennas usually have a radome to protect the antenna. For large aperture arrays like the SKA Mid Frequency Aperture Array (MFAA) it is important to use cheap materials...
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Visit of the Chinese Society of Astronautics to ASTRON
© ASTRON In 2013 SpaceNed (the Dutch association of space companies and institutes) started to collaborate with the Chinese Society of Astronautics (CSA). One of the members of SpaceNed and partner in...
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Tomorrow's Colloquium: Getting close to black holes with X-ray spectral-timing
© Phil UttleyNote that this colloquium announcement is one day early. We need tomorrow's AJDI slot for the retirement of Sjouke Zwier and Hans TenkinkThe variable X-ray emission from accreting black...
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Retirement of Sjouke Zwier and Hans Tenkink
© ASTRON/JIVE Today both Sjouke and Hans celebrate their retirement. Sjouke retires after working for ASTRON for 42 years. He has been involved in the development of state-of-the-art digital systems,...
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Very-wide-field VLBI-imaging with LOFAR
© Ger de Bruyn It is well-known that LOFAR can image large areas of the sky. However, it is less known that this can be done at any resolution, up to the 0.25" PSF provided by the full European scale...
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State visit to Australia
© ASTRON Their Majesties King Willem-Alexander and Queen�M�xima�visited Curtin University�on�1 November as part of a State visit to Australia. They�heard�about the Square Kilometre Array (SKA) project...
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There was a time...
© Rodjorna Retreat Sweden There was a time when our coffee and soup were dispensed by a diminiutive Philosopher with a warm smile and gleaming eyes. Aziz Thaleb was (and is) unusual in many ways (*),...
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OLFAR PhD defence Raj Thilak Rajan
© ASTRON On Friday October 28th at the TUDelft Raj Thilak Rajan successfully defended his PhD thesis with the title shown in the picture. His research addresses estimating the space-time kinematics of...
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Today's Colloquium: Highlights of a PhD in Galactic Maser VLBI
© Ross Burns Masers are really wonderful. Observing them with VLBI reveals information on range of scales from a few AU to a few kiloparsec, and all that in return for writing a single proposal. In...
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The quiet force behind a hard-working R&D department
© ASTRON The various projects in which the people of the ASTRON R&D department are involved require a lot: commitment, enthusiasm, flexibility, thinking out of the box, and of course hard work. But...
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The European VLBI Network welcomes VIRAC as a new member
© VIRAC The European VLBI Network (EVN) Consortium Board of Directors (CBD) met on 25 October 2016 in Irbene (Latvia). The Chairman (who is Rene Vermeulen of ASTRON) recalled the recent CBD decision...
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Carbon and hydrogen radio recombination lines from the cold clouds towards...
© J.B.R. Oonk The Low Frequency Array (LOFAR), thanks to its high spectral resolution, enables studies of the low-frequency universe not only in continuum, but also through spectral lines. In the...
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Today's Colloquium: Recent advances in the theory of pulsar magnetospheres
© Andrey TimokhinNote that this colloquium is on wednesday (today)!Discovered five decades ago, radio pulsars - rapidly rotating highly magnetized neutron stars - are still one of the mysteries of...
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The voice of...
© Hans van der Marel / Albert van Duin On 1 November the head of the R&D department, Gert Kruithof, organised an activity for the people from his department, which would be both "entertaining and...
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