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Discovery of 'Mini Halo' Points to How the Early Universe Was Formed
- Researchers identified a distant galaxy cluster, located 10 billion light-years away, surrounded by a small halo of highly energetic particles emitting radio waves.
- This finding indicates that galaxy clusters have contained energetic particles since their early development, highlighting their long-term exposure to high-energy phenomena.
- The mini-halo's diffuse glow covers more than a million light-years, suggesting that black holes and particle collisions drive the growth and evolution of these cosmic structures.
- Roland Timmerman expressed surprise at detecting such an intense radio emission from so far away, while Julie Hlavacek-Larrondo likened the finding to uncovering a vast expanse filled with energetic particles enveloping galaxy clusters.
- New radio telescopes like the Square Kilometer Array will help detect fainter signals and further clarify how magnetic fields and energetic processes shaped the early universe.
19 Articles
19 Articles
Astonishing 'halo' of high-energy particles around giant galaxy cluster is a glimpse into the early universe
A distant cluster of galaxies is wrapped in a vast halo of high-energy particles that could be the work of supermassive black holes or a cosmic particle accelerator.
Galaxy Clusters Have Been Surrounded by High-Energy Particles for Almost Their Entire History
If you could see the Universe through a radio-wave "eye", you'd detect mini-halos of relativistic particles creating radio emissions around some galaxy clusters. Astronomers long figured those halos are relative "recent" happenings in the nearby Universe and didn't occur in the early epochs of cosmic history. That's all changed now that the Low Frequency Array (LOFAR) radio observatory in Europe has revealed newborn galaxies in the early Univers…
Record-breaking 10-billion-year radio halo just rewrote the universe’s origin story
A newly discovered radio halo, 10 billion light-years away, reveals that galaxy clusters in the early universe were already steeped in high-energy particles. The finding hints at ancient black hole activity or cosmic particle collisions fueling this energy.
Farthest 'mini-halo' ever detected could improve our understanding of the early universe
Scientists have discovered the farthest-ever 'mini-halo,' a sea of charged particles around a distant galaxy cluster that could reveal unexpected insights about the ancient universe.
A Ghostly Radio Halo Just Changed What We Know About the Early Universe
Astronomers using the LOFAR radio array have detected a vast “mini-halo” of high-energy particles around galaxy cluster SpARCS1049, whose light has traveled 10 billion years to reach us. The find doubles the previous distance record and shows that colossal clusters have been bathed in charged particles since the universe’s youth. Record-Breaking Mini-Halo Discovery Astronomers have [...]
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