Category Astronomy/Space

Rare ultra-magnetic star may be key to solving 90-year old quantum cold case

A Swinburne astronomer may have just confirmed one of the quirkiest aspects of quantum mechanics: that seemingly empty space can alter the behaviour of light. Image supplied via NASA.

Astronomers may have just confirmed one of the quirkiest aspects of quantum mechanics: that seemingly empty space can alter the behavior of light. This phenomenon, called “vacuum birefringence,” was first predicted nearly 90 years ago by Werner Heisenberg, one of the founding fathers of quantum mechanics. He suggested that even a perfect vacuum should be teeming with “virtual particles” that rapidly pop in and out of existence.

The astronomers, including Dr Marcus Lower from Swinburne University of Technology, used the properties of a magnetar—a rare type of neutron star with the strongest magnetic fie...

Read More

Diffuse interfilament gas is likely a key fuel source for massive star formation

Inter-filamentary diffuse gas: Key fuel source for massive star formation
Illustration of the Monoceros R2 hub–filament system showing how the gas flows along the filaments (green arrows) and in the inter-filament regions (blue arrows) towards the central hub. The analysis showed that gas within dense filaments flows toward the hub much faster than gas in the surrounding inter-filament regions. At the same time, a fraction of the gas in the inter-filament regions moves sideways into nearby filaments, replenishing them with fresh material before continuing toward the hub, supporting star formation. Credit: Kyushu University

Researchers from Kyushu University have discovered that diffuse gas surrounding dense filaments in a nearby stellar nursery plays a much larger role in star formation than previously recognized...

Read More

Homing in on the X-ray sky with eROSITA’s second data release

An X-ray image of galaxy cluster A3266
An X-ray image of galaxy cluster A3266 – The massive galaxy cluster A3266 is shining brightly in the X-ray light and is connected to a nearby group of galaxies by a gaseous filament.© Jakob Dietl/Uni Bonn/eROSITA-DE

The German eROSITA consortium (eROSITA-DE), which includes the University of Bonn and is led by the Max Planck Institute for Extraterrestrial Physics (MPE), has released its second major public data set, the “eROSITA Data Release 2” (DR2).

Built from the first three all-sky surveys conducted by the eROSITA telescope aboard the Spectrum-Roentgen-Gamma (SRG) mission, DR2 provides the most sensitive and comprehensive catalog of the X-ray sky currently available to the public...

Read More

Black hole feeding frenzy ends in lingering cosmic indigestion

Black hole feeding frenzy ends in cosmic indigestion
Artist impression of SwiftJ1727 with donor jet clouds. Credit: John A. Paice & Noel Castro Segura et al, ‘SwiftJ1727—Final—No Overlay—DonorJetClouds’, (2026).

Black holes are often portrayed as cosmic gluttons that swallow everything that comes too close. But new observations of a dramatic black hole outburst—led by Warwick Postdoctoral Fellow Dr. Noel Castro Segura—suggest the reality is much messier.

Using the European Southern Observatory’s Very Large Telescope (VLT), astronomers followed the newly discovered black hole system Swift J1727.8−1613 through a spectacular 2023 eruption. The work is published in the journal Monthly Notices of the Royal Astronomical Society.

Astronomers found that as the black hole consumed gas from a nearby star, it simultaneously launch...

Read More