Neutrinos from the solar CNO cycle are detected

Assembled from 27 blocks · 1 evidence · 18 related

1. Story
2. The Borexino collaboration reported the first direct detection of neutrinos produced by the carbon-nitrogen-oxygen cycle in the Sun, published in Nature. The CNO cycle accounts for only about one per cent of solar energy output, so the signal sits far below the proton-proton chain and required years of work on radiopurity and thermal stability of the detector to extract. Its importance is not solar: CNO is the dominant hydrogen-burning route in stars above roughly 1.3 solar masses, so this is the observational confirmation of the energy source of most of the luminous stellar mass in the Galaxy.
3. Knowledge
4. Hydrogen fusion: the proton-proton chain and the CNO cycle
5. The Sun
6. Laboratori Nazionali del Gran Sasso
7. Neutrinos from the solar CNO cycle are detected
8. Connections
9. Laboratori Nazionali del Gran Sasso
10. Hydrogen fusion: the proton-proton chain and the CNO cycle
11. Laboratori Nazionali del Gran Sasso
12. The Sun
13. Initial stellar mass
14. Main sequence (core hydrogen burning)
15. Stellar nucleosynthesis
16. The Sun
17. Payne concludes that stars are mostly hydrogen - and disclaims it
18. Neutrinos from the solar CNO cycle are detected
19. Neutrinos from the solar CNO cycle are detected
20. Neutrinos from the solar CNO cycle are detected
21. Hydrogen fusion: the proton-proton chain and the CNO cycle
22. Main sequence (core hydrogen burning)
23. The Sun forms and settles onto the main sequence
24. Payne concludes that stars are mostly hydrogen - and disclaims it
25. Neutrinos from the solar CNO cycle are detected
26. Evidence
27. Reports the first direct detection of solar neutrinos from the CNO cycle. Title and DOI were read from the publisher listing via search; the paper was not fetched, and the quoted ~1 per cent CNO share of solar energy output comes from accompanying institutional summaries rather than the paper.