JWST finds the compact object in SN 1987A

Assembled from 31 blocks · 1 evidence · 30 related

1. Story
2. Infrared integral-field spectroscopy with JWST detected narrow argon and sulphur emission lines confined to the centre of the SN 1987A remnant. Photoionisation modelling indicates the gas is being ionised either by ultraviolet and X-ray radiation from a hot cooling neutron star or by a pulsar wind nebula. After thirty-seven years in which the expected remnant had never been seen, the object the neutrino burst implied was finally located; which of the two ionisation mechanisms dominates is still argued.
3. Knowledge
4. Supernova
5. Neutron star
6. JWST finds the compact object in SN 1987A
7. Connections
8. Neutron star
9. Supernova
10. Degeneracy pressure
11. Supernova
12. Baade and Zwicky propose supernovae and neutron stars
13. A regularly pulsing radio source is identified
14. A pulsar is found inside the Crab Nebula
15. SN 1987A: neutrinos from a collapsing core reach Earth
16. A neutron-star merger is detected in gravitational waves and light
17. A radius is measured for the heaviest known neutron star
18. JWST finds the compact object in SN 1987A
19. Initial stellar mass
20. The iron peak in nuclear binding energy
21. Giant molecular cloud
22. Neutron star
23. Stellar-mass black hole
24. A guest star appears in Taurus and is recorded in East Asia
25. Baade and Zwicky propose supernovae and neutron stars
26. A pulsar is found inside the Crab Nebula
27. SN 1987A: neutrinos from a collapsing core reach Earth
28. SN 1987A: neutrinos from a collapsing core reach Earth
29. JWST finds the compact object in SN 1987A
30. Evidence
31. Reports narrow argon and sulphur lines at the centre of the SN 1987A remnant consistent with ionisation by a cooling neutron star or a pulsar wind nebula. Title, publication date and DOI come from the publisher listing via search; the paper was not fetched, and which of the two ionisation mechanisms dominates is described in follow-up literature as unresolved.