ASTRON Newsletter July 2021  
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Green light given for construction of world’s largest radio telescope arrays

At a historic meeting of its Council on 25 June 2021, the SKA Observatory (SKAO) saw its Member States give the green light for construction of the SKA telescopes in Australia and South Africa to commence. We spoke to Michiel van Haarlem, head of the Dutch SKA Office at ASTRON, about what this important milestone means.

Read the official press release


ASTRON reveals life cycle of supermassive black hole

In a first time ever, astronomers have combined LOFAR and WSRT-Apertif to measure the life cycle of supermassive black holes emitting radio waves. This study, part of the LOFAR deep fields surveys, opens the possibility of timing this cycle for many objects in the sky and explore the impact it has on galaxy evolution.
Read the story

Ultra-sensitive radio images reveal thousands of star-forming galaxies in early Universe

Using LOFAR, an international team of astronomers has published the most sensitive images of the Universe ever taken at low radio frequencies. By observing the same regions of sky over and over again and combining the data to make a single very-long exposure image, the team has detected the faint radio glow of stars exploding as supernovae, in tens of thousands of galaxies out to the most distant parts of the Universe.
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A starry sky made of more than 25,000 supermassive black holes

An international team of astronomers has produced the largest and sharpest map of the sky at ultra-low radio frequencies, using LOFAR. The map published in the journal Astronomy & Astrophysics reveals more than 25,000 active supermassive black holes in distant galaxies.
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People of ASTRON

Pieter Benthem
Project Manager

Our column Humans of ASTRON is growing steadily with new stories. Recently
Pieter Benthem, Henk Vonk, Harish Vedantham and Carin Lubbers were interviewed.

Other stories

LOFAR4SW 2020 highlights

2020 was an important year for LOFAR4SW (LOFAR for Space Weather), the highlights are summarised here.
> Read the story

NenuFAR strides towards imaging observations with NICKEL

A highly successful collaboration between ASTRON and Nancay radio observatory has resulted in a state-of-the-art GPU correlator for the SKA path finder NenuFAR telescope array. Saving years of work in a matter of weeks has resulted in making high quality NenuFAR data available to astronomers worldwide.
> Read the story

ASTRON offers work opportunities via the Participation Act

At ASTRON everyone who wants to work is welcome.
> Read the story

Europe’s radio and optical astronomy communities team up in new EC-funded project

A new project has kicked off to enhance cooperation between European astronomy facilities and promote transnational access among them.
> Read the story

Media mentions we are proud of

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