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Dutch astronomers prove last piece of gas feedback-feeding loop of black hole

Three astronomers from the Netherlands have proven that gas that was previously heated near a supermassive black hole and flowed to the outskirts of the galaxy and cooled down, is moving back towards the black hole. While there had been indirect evidence for this theory, this is the first time that the cooled gas moving toward the black hole has actually been observed.

Published by the editorial team, 7 December 2023

Super sharp images reveal a possible hypernebula powered by a source of fast radio bursts

A team led by astronomers in the Netherlands have confirmed a repeating FRB source to be linked to a potential ‘hypernebula’ – a dense and highly magnetised cloud of plasma that is illuminated by a powerful but still mysterious source.

Published by the editorial team, 30 November 2023

Astronomers discover ultra-fast radio bursts in archived data

An international team of researchers led by Dutch Ph.D. candidate Mark Snelders has discovered radio pulses that last only millionths of a second.

Published by the editorial team, 20 October 2023

ERC Starting Grant Awarded to Dr. Aditya Parthasarathy

The European Research Council (ERC) has awarded Dr. Aditya Parthasarathy a prestigious and extremely competitive grant to pursue his research at ASTRON, the Netherlands Institute for Radio Astronomy.

Published by the editorial team, 5 September 2023

Radio waves leaking from large satellite constellations could jeopardize astronomical exploration

The LOFAR radio telescope has shown that satellites can unintentionally emit radio waves that interfere with the observations of radio telescopes. Satellites circle the globe in ever increasing numbers. Their radio emission could, if not addressed, close unique and scientifically valuable windows into the Universe. It is of crucial importance for the astronomy sector and industry to collaborate to overcome these issues and for the International Telecommunications Union to establish regulation to control this emission.

Published by the editorial team, 5 July 2023

Pulsar clocks open new window on gravitational waves

An international collaboration of European astronomers, together with Indian and Japanese colleagues, have seen evidence for ultra-low-frequency gravitational waves, which is expected to originate from pairs of supermassive black holes found in the centres of merging galaxies. This is the result of more than 25 years of observations with the most sensitive radio telescopes in Europe and India, including the Westerbork Synthesis Radio Telescope (WSRT). In doing so, they have opened a new window on gravitational wave research. These gravitational waves contain information about the Universe’s best-kept secrets. The research has been published in a series of articles in the professional journal Astronomy & Astrophysics.

Published by the editorial team, 29 June 2023

Dame Jocelyn Bell Burnell public lecture

Wed 13 Dec 2023

We have the honour of welcoming Dame Jocelyn Bell Burnell to the Netherlands. On 13 December 2023, she will give a public lecture in Amsterdam at the Science Park. Recently, ASTRON announced the Bell Burnell Fellowship, named in honour, and with support of, Dame Susan Jocelyn Bell Burnell. The Bell Burnell Postdoctoral Fellowship is designed […]

7th LOFAR Data School

Mon 15 Apr 2024 - Fri 19 Apr 2024

Dear LOFAR Users, We are happy to announce that the 7th LOFAR Data School (LDS2024) will take place at ASTRON, the Netherlands Institute for Radio Astronomy (The Netherlands) in the week of 15-19 April, 2024. Rationale The goal of the school is to assist the participants in the generation and analysis of LOFAR science ready […]

Kootwijk Würzburg restored

© CC-BY-SA 4.0 Museum Vliegbasis Deelen / ASTRON archive

As announced last year, the first telescope of ASTRON has been found. This Würzburg Riese parabola was restored by volunteers of Museum Vliegbasis Deelen into its original form, a radar dish.

Unfortunately the restored dish is not part of an exposition; it is now in storage. We have heard that the restoration took so much effort that they do not want to expose the dish to the weather ever again. The museum does, however, provide good photos of the restored dish, through its archive at (search for 'Riese').

The collage shows, in black an white, an exterior photo of the telescope with Maarten Schmidt and Gart Westerhout, and an internal view featuring Lex Muller. The historic images were taken by Arie Hin. The color photos are from Museum Deelen, showing what the telescope looks like now, in the storage in Elst.


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