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New aerial picture of superterp
© CC-BY-4.0 Nationaal Georegister The Dutch Kadaster (Cadastre, Land Registry and Mapping Agency) creates a new aerial photograph of The Netherlands every year. The map for 2019 turned out quite good,...
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Colloquium - Identifying AGN in the faint radio sky
© Public It is now widely accepted that the evolution of galaxies and the growth of the central supermassive black hole (SMBH) are intimately connected. Those SMBH which are active (hence Active...
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First LOFAR2.0 LBA Spectrum
© ASTRONâWell begun is half doneâ (een goed begin is het halve werk). In the first working week of 2020 we measured the first LOFAR Lowband Antenna (LBA) spectrum captured with a UniBoard2, the new...
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The AJDI Treasure
© Madroon Community Consultants It is always fun to look at the current Daily Image, to see what ASTRON, JIVE and NOVA are up to. But our greatest, and lasting treasure is the archive of images that we...
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Colloquium - Linear polarization in radio galaxies at low frequencies
© public Early radio and optical observations of radio galaxies inferred that the mechanism by which they predominantly radiate is the synchrotron process, and that the radio emission we observe is...
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Academy president Bai Chunli presents Richard Strom with the CAS gold medal...
© no known copyright Richard Strom received the Chinese Academy of Sciences (CAS) Award for International Scientific Cooperation in a ceremony held at the CAS headquarters. Strom, past astronomer with...
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Press conference at AAS 235
© ASTRON / JIVE / Photo: Marieke Baan On January 6th, 2020, we presented our paper on the precise localisation of a 2nd repeating fast radio burst (FRB) source at a press conference hosted at the 235th...
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Colloquium - Off-axis relativistic jets and electromagnetic counterparts to...
© Resmi Lekshmi Non-thermal emission associated with GW170817 revealed the relativistic jet launched in the merger, with its axis directed away from us. Such an off-axis viewing angle helped obtain a...
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Plenary talk at AAS 235
© ASTRON / JIVE / Photos: Amruta Jaodand On January 7th, 2020, I gave an invited plenary talk at the 235th meeting of the American Astronomical Society (AAS) in Honolulu, Hawai'i. The talk, attended by...
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Kick starting water-cooling Gemini SKA
© Sven Franken Expectations for water cooling a sub rack consisting of 12 Gemini in parallel. Blue line shows 1 of the 12 mono blocks from a perfect situation to partly clogged. This causes less water...
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Can low-frequency pulsar emission escape M31 unharmed?
© JvL What do engineers who work with long-distance optical fiber data transport, have in common with astronomers who study fast transients? They both need to watch out for dispersion. The speed of...
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Colloquium - Auroral radio emissions: a tool to probe planetary...
© B. Cecconi/P. Zarka. Magnetized planets of the solar system are powerful auroral radiosources observed between a few kHz and 40 MHz. Over the past decades, they have been widely investigated in situ...
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Smart Frontend: 3D-MID by 3D-printing
© ASTRON Our roadmap for future phased array antennaâs predicts 3D-MID might be a key production technology. Jeffrey Zhang, intern at the R&D Mechanics group, characterized XANTAR 3764 plastic...
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Constraining galaxy and black hole binary mergers with pulsars (Colloquium,...
© Siyuan Chen We have strong evidence that super massive black holes reside in most galaxies. Galaxies have also been observed to merge, consequently the central black holes should also form a binary...
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The hunt for exo-aurorae
© CC BY-NC-SA (Danielle Futselaar) What could be more fascinating than aurorae -- the shimmering curtains of light that blanket the Earthâs poles? Aurorae in planetary systems around other stars, or...
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Colloquium (20 Feb 2020): Liam Connor - An update on, and forecast for, the...
© Liam Connor FRB 191108 was discovered by the Apertif Radio Transient System (ARTS) with a Faraday Rotation Measure (RM) of nearly 500 rad m**-2. Its sightline comes within just 18 kpc of Local Group...
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The ESCAPE Virtual Observatory (VO) tech forum.
© CC0 The first week of February the European Virtual Observatory community gathered in Strasbourg for the ESCAPE VO* tech forum. Since we are partners in the relevant work package in the ESCAPE...
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Veni, vidi, vici
© ASTRON In the last decade, a new type of transient termed a `fast radio burstâ (FRB) has been discovered. Though the FRB phenomenon remains mysterious, astronomers have demonstrated that these...
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Some statistics after 100 proposals submitted
© Collage of own images (B. Marcote), illustration from Danielle Futselaar, and images from NASA and ESA. Astronomers typically have two types of events highlighted on their calendars: Holidays and...
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The Launch of LOFAR Radio Galaxy Zoo
© Erik Osinga and the LOFAR surveys team The LOFAR surveys collaboration are preparing for their second public data release. The radio catalogues for this release will contain approximately 4.3million...
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