News

Huib van Langevelde new director Event Horizon Telescope

17/07/2020
Huib van Langevelde (Chief Scientist in JIVE, Dwingeloo, also Professor of Galactic Radio Astronomy at Leiden) has been selected as the new director of the Event Horizon Telescope (EHT). The EHT is a collaboration involving about 350 scientists from 18 countries. The EHT combines sub-millimeter telescopes around the world, including the ALMA array in Chile, and published the first image of a Black Hole in 2019.

EVN e-Seminars series

26/06/2020
The European VLBI Network (EVN) is pleased to announce a series of online seminars “The sharpest view of the radio Universe: VLBI – Connecting Astronomers Worldwide”. Seven speakers will cover 7 different science topics, and the talks will occur roughly every 7 weeks between early July 2020 and the EVN Symposium, which has been rescheduled to July 12-16, 2021. These talks will illustrate how Very Long Baseline Interferometry can improve our understanding of many astronomical phenomena, from stars to galaxies, and the talks are aimed at a broad astronomical audience.

Array of radio telescopes reveals explosion on the surface of a hot dead star

09/04/2021
An international group of researchers observed a source of variable gamma rays identified in 2010 by the NASA satellite Fermi. They used a technique called VLBI, that combines data from several radio telescopes on Earth, to produce the sharpest images. Surprisingly, the source of gamma rays was a symbiotic nova, a peculiar stellar system known to astronomers as V407 Cyg.

Discovery of a fast radio burst that pulses at regular intervals

30/04/2021
A Canadian-led team of astronomers, including researchers from JIVE, has discovered that a repeating fast radio burst (FRB) originating from a nearby galaxy pulses at regular intervals. Researchers within the Canadian Hydrogen Intensity Mapping Experiment (CHIME) Fast Radio Burst Collaboration used the CHIME telescope in British Columbia to show that the repeating radio source known as FRB 180916.J0158+65 - first discovered in 2018 by the same group - pulsates apparently every 16.35 days.

JIVE recognises and protects diversity as the key against discrimination

12/06/2020
JIVE is an international research infrastructure committed to recognise and protect diversity as the key against discrimination.

AstroFlash project to localise FRBs

23/03/2021
Jason Hessels will build a research group of PhD students and postdocs hosted at ASTRON, JIVE and the University of Amsterdam. Hessels' previous research activities have been funded, in part, by NWO Veni and Vidi grants, which together with the Vici form the "NWO-Talentprogramma''.

The cosmic cow explained - radio signals point to an explosion and a newborn magnetar

08/04/2021
Observations using 21 telescopes of the European VLBI Network (EVN) have revealed that a cosmic explosion, called AT2018cow most likely formed a neutron star with an extremely powerful magnetic field - known as a magnetar. The high-resolution radio images produced in this new study show physical properties of the stellar remnant that make alternative explanations less likely, say scientists.

Celebrating milestones in space-borne high-resolution radio astronomy

30/04/2021
The past decade has seen leaps forward in both the scientific and technical expertise needed to conduct high resolution radio astronomy observations from space. Future detailed studies of compact celestial radio sources, related technologies and recent breakthroughs in the field are highlighted in a special issue of Advances in Space Research, entitled “High Resolution Space-Bourne Radio Astronomy”.

A repeating Fast Radio Burst from a spiral galaxy deepens the mystery of where these signals originate from

09/04/2021
Telescopes in the European VLBI Network (EVN) have observed a repeating Fast Radio Burst (FRB) in a spiral galaxy similar to our own. This FRB is the closest to Earth ever localised and was found in a radically different environment to previous studies. The discovery, once again, changes researchers’ assumptions on the origins of these mysterious extragalactic events.

Astronomers observe the ‘smoking gun’ of an orphan gamma-ray burst afterglow

22/04/2021
Astronomers have found the ‘smoking gun’ of an ‘orphan’ gamma-ray burst afterglow. Gamma-ray bursts are brief, intense flashes of gamma-rays that are difficult to detect. They are believed to be linked to cataclysmic events such as the collapse of a massive star, or the collision and merger of two neutron stars. Evidence of an ‘orphan’ gamma-ray burst afterglow provides astronomers with more possibilities to study, and ultimately understand, such phenomena.