US EditionScientists Map Milky Way Neutrino Flow to Earth
The map reveals most neutrinos come from stars near the galactic center, aiding underground observatories in targeting detections and advancing stellar and physics research.
- Researchers at the University of Copenhagen have produced the most comprehensive model mapping how many neutrinos Milky Way Galaxy stars generate and how many reach Earth.
- By combining advanced stellar models with ESA's Gaia telescope data, University of Copenhagen researchers mapped neutrino origins to guide large neutrino observatories and underground detectors.
- The study shows that the vast majority of Galactic neutrinos come from the galactic centre, particularly a few thousand light‑years from Earth, with flux spanning a wide energy spectrum from light, intermediate and very massive stars, mostly those as massive or more massive than the Sun.
- For current observatories, the map offers a clear targeting guide, enabling large neutrino observatories to increase detection chances by focusing on the galactic centre.
- The study could let scientists use neutrinos to study stars across the Galaxy, as their minimal disturbance provides direct insight into stellar interiors and new physics, researchers say.
10 Articles
10 Articles
Groundbreaking mapping: how many ghost particles all the Milky Way’s stars send towards Earth
Every second, a trillion of the elusive ghost particles, the neutrinos, pass straight through your body. Now, astrophysicists from the University of Copenhagen have mapped how many ghost particles all the stars in the Milky Way send towards Earth, and where in the galaxy they originate. This new map could help us track down these mysterious particles and unlock knowledge about our Galaxy that has so far been out of reach.
Astrophysicists map how many ghost particles all the Milky Way's stars send towards Earth
They're called ghost particles for a reason. They're everywhere—trillions of them constantly stream through everything: our bodies, our planet, even the entire cosmos. These so-called neutrinos are elementary particles that are invisible, incredibly light, and interact only rarely with other matter.
Ghost particles slip through Earth and spark a hidden atomic reaction
Scientists have managed to observe solar neutrinos carrying out a rare atomic transformation deep underground, converting carbon-13 into nitrogen-13 inside the SNO+ detector. By tracking two faint flashes of light separated by several minutes, researchers confirmed one of the lowest-energy neutrino interactions ever detected.
Every second, a trillion of the elusive ghost particles, the neutrinos, pass straight through your body. Now, astrophysicists from the University of Copenhagen have mapped how many ghost particles all the stars in the Milky Way send towards Earth, and where in the galaxy they originate. This new map could help us track down these mysterious particles and unlock knowledge about our Galaxy that has so far been out of reach.
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