News & Events
LOFAR1 operations stopped, telescope gearing up for 2.0 upgrade
August 31st was the last day on which we received data from LOFAR1. With the shutdown of LOFAR1 operations, over a decade of gathering and handling huge amounts of data came to an end. LOFAR1 operations have led to the publication of more than 750 scientific papers so far, and this number is still growing by about two papers per week. The end of LOFAR1 production operations does of course not mean the end of LOFAR (which became LOFAR ERIC last year): right now we are working hard on upgrading the LOFAR telescope to version 2.0, both in software and hardware.
Gargantuan Black Hole Jets Are Biggest Seen Yet
Astronomers have spotted the biggest pair of black hole jets ever seen, spanning 23 million light-years in total length. That’s equivalent to lining up 140 Milky Way galaxies back to back.
Second-Generation Starlink Satellites Leak 30 Times More Radio Interference, Threatening Astronomical Observations
Observations with the LOFAR (Low Frequency Array) radio telescope last year showed that first generation Starlink satellites emit unintended radio waves that can hinder astronomical observations. New observations with the LOFAR radio telescope, the biggest radio telescope on Earth observing at low frequencies, have shown that the second generation ’V2-mini’ Starlink satellites emit up to 32 times brighter unintended radio waves than satellites from the previous generation, potentially blinding radio telescopes and crippling vital research of the Universe.
European grant allows ASTRON astronomer Joe Callingham to study the space weather of other worlds
Dr Joe Callingham has received an ERC Starting Grant worth 1.5 million euros.
Top marks for ASTRON
ASTRON has been assessed by the Strategy Evaluation Protocol (SEP) committee as a research institute that produces excellent research both on astronomy and in technology and innovations.
Women Astronomers Day 2024
Today, August 1st, marks Women Astronomers Day. Throughout history women astronomers have played a vital role in the development of astronomy and have made important astronomical discoveries.
Toegepaste RF-techniek
Mon 04 Nov 2024 - Thu 07 Nov 2024
De cursus Toegepaste RF-techniek bestaat uit een theoriegedeelte (75%) en hands-on sessies in ons eigen lab (25%).
Deelnemers aan deze cursus dienen een hbo werk- en denkniveau te hebben. De deelnemer kent de basisbegrippen van elektronica. Parate kennis van wiskundige concepten is niet vereist, maar komt wel aan de orde bij de transmissielijntheorie. In de cursus wordt ook complexe rekenwijze toegepast.
© Adriana Rodriguez-Kamenetzky
Since the term "jet" was first used to describe a feature observed in the galaxy M87 in 1954, technological advances have revealed the existence of jets in a number of astrophysical systems where material is accreted onto central objects. Nevertheless, a unified explanation for their formation and collimation remains elusive. In this regard, protostellar jets are particularly advantageous due to their proximity, allowing us to probe close to their launching platforms, deeply embedded in the parent cloud. Despite decades of research, fundamental aspects of their characterisation, such as the collimation distance, the material velocity, and the magnetic fields, remain poorly understood. In this talk, I will focus on the characterisation of protostellar jets at radio frequencies, addressing these topics from an observational perspective using cutting-edge interferometers such as the JVLA and eMERLIN.