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In Memoriam: Jeanette (Jet) Katgert-Merkelijn (1943-2020)
© nn In a recent AJDI we remarked that many of the great radio astronomers passed through Leiden in the sixties. One such was Jet Katgert-Merkelijn, who sadly died after a home accident on June...
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Fun with the AJDI Archive (IV)
© nn The ASTRON/JIVE Daily Image (AJDI) is the family chronicle of ASTRON, JIVE, NOVA and DOME. What better way to remind ourselves of what we are fighting for in these brutal Covid times, than to...
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Colloquium 10 September 2020 - Hannah Stacey (MPA Garching)
© Hannah Stacey The rocky road to quiescence: zooming in on massive galaxy formation at cosmic noonABSTRACT: A key aspect of the study of galaxy evolution is understanding how massive galaxies in the...
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In Memoriam: Prof Hugo van Woerden (1926-2020)
© SRZM Huug has been tremendously important for SZRM/NFRA/ASTRON in his long career.He studied astronomy in Leiden under Oort straight after the War. From the start, he was involved with the newly...
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In Memoriam: Prof Govind Swarup (1929-2020)
© nn One of the pillars of radio astronomy has died, aged 91. Govind Swarup was the founding father of radio astronomy in India, and a world-recognised innovator in radio telescope design. He was a...
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Colloquium 17 Sept 2020: How fast are the black hole X-ray binary jets
© Payaswini Saikia Compact, continuously launched jets in black hole X-ray binaries (BHXBs) produce radio to opticalâinfrared (OIR) synchrotron emission. These jets are launched in the hard X-ray...
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Software lifecycle in particle physics and astronomy
© CC BY 4.0 During the summer, the Workshop on Open-Source Software Lifecycles (WOSSL) was held, as part of the ESCAPE project. In this workshop, several experiments in the fields of astronomy and...
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DISTURB-1: a solar spectrograph design
© © 2020 Michiel Brentjens (ASTRON) DISTURB (Disturbance-detection by Intelligent Solar radio Telescope of (Un)pertur-bed Radiofrequency Bands) is a proposed broadband (3 MHz to 3 GHz continous),...
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Jonghe Doctor Broekema
© photos made by Stefan Wijnholds On September 28, 2020, Chris Broekema successfully defended his PhD thesis. The defence took place under unusual circumstances due to COVID-19 measures with most of...
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National Diversity Day
© . By flying the rainbow flag, ASTRON/JIVE want to emphasise that diversity is an important theme. The 6th of October is National Diversity Day, a day to work on improving diversity in all its...
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ASTRON2.0
© ASTRON The future of ASTRON shines bright. We are hard at work on major projects like the SKA, Science Data Centre, LOFAR 2.0 and a Gigahertz platform. In order to make our organisational structure...
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Postcards of the Dwingeloo Telescope
© - From an amateur Dwingeloo historian, we got a pile of scans of postcards featuring the Dwingeloo Radio Telescope.The photos, mostly marked with "Radiokundig observatorium, Dwingeloo, show the...
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Tango Controls chosen for LOFAR2.0 Monitor & Control
© ASTRON / Tango Controls On Thursday September 25th, the LOFAR stakeholder board has decided that the LOFAR2.0 Monitor and Control system will be built using the Tango Controls framework. The decision...
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Colloquium: Quasar Feedback Survey : The prevalence of radio AGN and the...
© Christopher Harrison (New Castle University) Abstract: Galaxy formation simulations invoke that growing supermassive black holes (i.e., active galactic nuclei; AGN) influence the formation of their...
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Last week's Colloquium: Observing galaxy clusters with LOFAR & LoTSS
© Andrea Botteon (Leiden University) Mergers between galaxy clusters are the most energetic phenomena in the Universe. During these cosmic collisions, turbulence and shock waves are injected into the...
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Cloud-cloud collision in Sgr B2
© Armijos-Abendaño et al. 2020 Sgr B2 is one of the most famous star-forming regions in the Galactic Centre. In Armijos-Abendaño et al. 2020 we report observations of a shock-tracer molecule, SiO,...
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Goodbye Computing Group
© Tammo Jan Dijkema After the ASTRON 2.0 reorganization, the R&D computing group merged with the R&D DESP group into the new I&S smart backend group.To mark the end of the computing group,...
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Hardware Acceleration meetup
© nn Friday 18th of September we held our first HW Acceleration meetup with 28 participants!The idea for a Dutch network for Hardware Acceleration(*) originates from a dinner at the Xilinx Developer...
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Colloquium (22 October 2020):Claire Murray (John Hopkins University / STSci)
© Claire Murray Title: Taking the temperature of the ISM with deep learningAbstract: Recent, high-resolution surveys of 21cm emission have revealed that neutral hydrogen (HI) in the local interstellar...
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EVN Symposium: Pin-pointing the positions of repeating Fast Radio Bursts
© ASTRON/JIVE On October 19th, 2020, ASTRON/UvA PhD student Kenzie Nimmo gave an online EVN Symposium talk to an international audience of about 125 participants.In her talk, entitled "Pin-pointing the...
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