News

Earth-size telescope tracks the aftermath of a star being swallowed by a supermassive black hole

Radio astronomers have used a radio telescope network the size of the Earth to zoom in on a unique phenomenon in a distant galaxy: a jet activated by a star being consumed by a supermassive black hole. The record-sharp observations reveal a compact and surprisingly slowly-moving source of radio waves.

An international team of radio astronomers led by Jun Yang (Onsala Space Observatory, Chalmers University of Technology, Sweden) studied the new-born jet in a source known as Swift J1644+57 with the European VLBI Network (EVN), an Earth-size radio telescope array.

EVN helps to reveal a clandestine black hole in our Galaxy

NASA's Chandra X-ray Observatory, the Hubble Space Telescope and the NSF's Karl G. Jansky Very Large Array (VLA) provided new insights into a faint radio source in the direction of the globular cluster M15.

Huib van Langevelde delivers traditional New Year's speech

DWINGELOO, The Netherlands (14 January 2016) - Director Huib van Langevelde delivered the traditional New Year's speech to JIVE and ASTRON staff today.

Click here for a full text PDF of the 2016 New Year's speech.

Radio astronomers see black hole come to life

42 million light years away, 20 million times the mass of the Sun, and coming back to life. A team of radio astronomers, led by Dr Megan Argo of the Jodrell Bank Centre for Astrophysics, and JIVE astronomer Dr Ilse van Bemmel, are watching a previously dormant black hole wake up in a dramatic display as material falls on to it for the first time for perhaps millions of years.

€15 million boost for European astronomy

Astronomers and astroparticle physicists today are celebrating a €15 million EU funding boost for European telescopes with the launch of the ASTERICS project (Astronomy ESFRI and Research Infrastructure Cluster), which will help solve the Big Data challenges of European astronomy and give members of the public direct interactive access to some of the best of Europe's astronomy images and data.

Inauguration of JIVE as a European Research Infrastructure Consortium (ERIC)

The radio telescopes of the European VLBI Network (EVN) regularly join forces in Very Long Baseline Interferometry (VLBI) observations, in order to explore the Universe at the highest possible angular resolution, mapping out gravitational lenses, resolving supernova explosions, pinpointing black holes and measuring the flows of material and the magnetic fields close to newly born stars.

W75N Outflow Onset

Astronomers Watch Unfolding Saga of Massive Star Formation - Dwingeloo, 2 April 2015, A pair of images of a young star, made 18 years apart, has revealed a dramatic difference that is providing astronomers with a unique, "real-time" look at how massive stars develop in the earliest stages of their formation.

ERIC decision for JIVE

- 12 December 2014 - A European Commission Decision adopted today will allow JIVE, the central facility of the European VLBI Network (EVN), to become an ERIC (short for European Research Infrastructure Consortium), making this international collaboration easier and more efficient.

Sharp radio images unravel the mystery of gamma rays in stellar explosions

DWINGELOO, The Netherlands (8 October 2014) - Highly-detailed radio-telescope images have pinpointed the locations where a stellar explosion called a nova emitted gamma rays, the most energetic form of electromagnetic waves. The discovery revealed a probable mechanism for the gamma-ray emissions, which mystified astronomers when first observed in 2012.

3rd International VLBI Technology Workshop

JIVE will host the 3rd International VLBI Technology Workshop in November 2014.
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