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Second place in Rotary Pub Quiz
© - On 30 March, a delegation of ASTRON represented the institute at a pub quiz organized by Rotary Beilen. Eleven companies from the neighborhood of Beilen competed for the title "Smartest company of...
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A week of hydrogen
© CC-BY 4.0 CAMRAS / Tammo Jan Dijkema This image shows about one week of spectra from the Dwingeloo telescope, in drift scan mode. That means, the telescope was not moving, and pointing at its 'show...
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JUICE on its way to Jupiter
© JIVE and TU Delft (left panel); ESA and Arianspace (right panel). On 14 April 2023, the ESA's Jupiter Icy Moons Explorer (JUICE) mission executed a spectacular lift-off onboard the Arian-5 heavy...
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Colloquium: Tying glitch phenomenology to neutron star physics
© Danai Antonopoulou Sudden rotational spin-ups, i.e. glitches, were observed shortly after the very discovery of pulsars. The connection of the phenomenon to the internal neutron superfluid in the...
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Blast from the Past
© Ger van Diepen Dr Ron Harten participated in the Rollercoster Ride of the Wonderful WSRT from the 60's to the 80's, first in Leiden and then in Dwingeloo. He recently visited us again with his wife...
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PV welding workshop
© - On Wedsnesday April 19th 11 PV-members attended the welding workshop organized by the Personeelsvereniging ASTRON/JIVE/NOVA. The workshop was held at the Lasleraar (welding teacher) in Groningen....
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Extended neutral hydrogen filamentary network in NGC 2403
© - Density map of RGB stars in NGC 2403 and its nearby satellite DDO 44 overlaid with HI filaments (white contours). The stellar stream connecting DDO 44 with the tip of the HI filaments is strongly...
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Colloquium: Cold gas dynamics in high-z galaxies
© Federico Lelli Gas dynamics play a key role in our understanding of the formation and evolution of galaxies. At z=0, gas dynamics has been extensively studied using a variety of tracers, such as the...
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Colloquium: Chandrashekar Murugeshan
© Chandrashekar Murugeshan Neutral atomic Hydrogen (HI) gas is the fundamental reservoir from which stars in galaxies are eventually formed. As such, studying the HI gas properties in galaxies give us...
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In Memoriam: Reltje (Bob) Rijf (1936 - 2023)
© ASTRON This week our Kapteyn Sterrenwacht colleague Bob Rijf passed away. When Bob became a job at the âLeidse Sterrenwachtâ he was send to NFRA in Dwingeloo to improve the electronics of the...
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How ARTS Finds FRBs III -- Don't blink: the FRB sky in sharp view with WSRT.
© JvL et al. The Apertif Radio Transient System (ARTS) is a supercomputing instrument that performed real-time detection and localisation of Fast Radio Bursts (FRBs) on Apertif at Westerbork. In a...
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Goodbye to Gert Kruithof
© ASTRON/Frank Nuijens After almost 10 years, we said goodbye to Gert Kruithof last Wednesday. Gert joined ASTRON from TNO as the first 'external' head of R&D and, with great attention to the human...
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‘Meet METIS’- a New NOVA mini-Documentary
© NOVA METIS is one of the four first-generation instruments for ESOâs (European Southern Observatory) Extremely Large Telescope (ELT) that will go to the telescope later this decade. METIS is built...
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Locating the interference at 1421.015 MHz
© CC-BY 4.0 Tammo Jan Dijkema Lately, the Dwingeloo telescope observations of the hydrogen line have been disturbed by radio frequency interference (RFI) at a frequency of 1421.015 MHz (-129 km/s)....
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Looking at JUICE with PRIDE
© JIVE, University of Tasmania, Guifre Molera Calvés Planetary Radio Interferometry and Doppler Experiment (PRIDE) of the JUICE mission, while having no dedicated onboard instrumentation, conducts...
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The rapid removal of HI from dwarf galaxies in the Fornax cluster
© A&A in press Deep neutral hydrogen (HI) observations from the MeerKAT Fornax Survey (MFS - https://sites.google.com/inaf.it/meerkatfornaxsurvey/) has detected emission of 17 dwarf galaxies in the...
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Colloquium: The BlackGEM telescopes – Hunting for optical counterparts...
© S. Bloemen (Radboud University)/ESO In this colloquium, we will discuss the BlackGEM array of wide-field optical telescopes, which have just become operational at ESOâs La Silla Observatory in...
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First release of the Rapthor pipeline!
© CC Rapthor is a pipeline to process LOFAR data and produce high-quality images. Specifically, it performs direction-dependent calibration in a fully automated self-calibration loop.The image is a...
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Dynamically Scheduling LOFAR Cycle 20!
© ASTRON One of the major challenges of the LOFAR support staff is to fill the LOFAR telescope calendar efficiently with approved observation programs. The scheduling process has to take into account...
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A new pulsar model for the Dwingeloo telescope
© CC-BY 4.0 Tammo Jan Dijkema To demonstrate what a pulsar is, we have a model of a neutron star in the Dwingeloo telescope. This model features magnetic field lines, and two flashlights representing...
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