News & Events

Construction of Square Kilometre Array commences

Today, SKA Observatory celebrates the start of on-site construction of the Square Kilometre Array (SKA).

Astronomers discuss future of Space VLBI in Dwingeloo

On 17-19 October 2022, JIVE and ASTRON co-hosted the 3rd Next Generation VLBI workshop (ngSVLBI-3) in Dwingeloo, the Netherlands. The hybrid workshop was attended both in-person and remotely by about ninety participants from all over the world.

LOFAR detects gigantic radio sources in the universe

An international research team has discovered four radio sources of up to ten million light years in size: megahalos.

People of ASTRON: Fanna Lautenbach

In People of ASTRON we share stories about the people at ASTRON. Who are the people behind the discoveries and innovations and also, who are the people that make sure that everything runs smoothly? Software engineer Fanna Lautenbach studied both astronomy and computer science and found her perfect working place here at ASTRON.

ERIS 2022 School inspires next generation of radio astronomers

Over 70 students from all over the world participated in the 9th European Radio Interferometry School (ERIS 2022) hosted by JIVE and ASTRON in Dwingeloo (the Netherlands) on 19-23 September 2022.

TOPIC-led consortium develops CSP-Low for SKA

The SKA telescopes are currently in the construction phase, and with it the central signal processor (CSP) for the SKA Low frequency telescope, called CSP-Low. CSP-Low will be integrated and delivered to site by a consortium led by the Dutch company TOPIC; ASTRON is one of its subcontractors. One of TOPIC’s specializations is designing and developing hardware, firmware, and software for sophisticated systems.


Daily Image

Colloquium: How diverse are the faintest dwarf galaxies

© Martin Rey

Recent advances in imaging capabilities have transformed our understanding of galaxies at the low surface brightnesses frontier, unveiling a new population of ever smaller "ultra-faint" dwarf galaxies. Such low-mass, feeble objects are highly sensitive to the physical processes that shape galaxies in our Universe, providing an ideal laboratory for testing galaxy formation models. This same sensitivity, however, also generates extended scatter in their properties, which is essential to quantify to interpret findings in the next generation of deep, wide sky, surveys.

To begin this quantification, I present results from "genetically modified" cosmological simulations of galaxies, allowing us to uniquely separate the role of cosmological assemblies and physical models in a given galaxy's final observables. I will show how this combination of abilities enables us to extract the expected diversity in the stellar and gaseous properties of the faintest galaxies in our Universe, making testable predictions that can be harnessed to constrain interstellar medium models with near-future photometric and radio surveys.

Latest tweets

Today, construction on the #SKA radio telescope officially started. Together with @CGI_Global, S[&]T, and @TriOpSys we are already developing important software components for processing the vast amounts of data the SKA telescope will produce.

Today was the official start of the construction of the @SKAO's #SKA radio telescope in Australia and South Africa. Together with #TOPIC, we are already working on the development of the central signal processor for the SKA Low frequency telescope.

Gigantic radio sources up to ten million light years in size discovered in the universe using the LOFAR radio telescope. Read more about this exciting result on the website of @HambObs

Daily image of the week

On June 13-17, the LOFAR Family Meeting took place in Cologne. After two years LOFAR researchers could finally meet in person again. The meeting brings together LOFAR users and researchers to share new scientific results.