Heber Curtis records a curious straight ray in Messier 87

Assembled from 24 blocks · 1 evidence · 19 related

1. Story
2. Observing the nebula catalogued as Messier 87 at Lick Observatory, Heber Curtis noted a narrow linear feature projecting from its nucleus. It was the first observation of what is now understood to be a relativistic jet launched from the vicinity of a supermassive black hole, made some fifty years before black holes were taken seriously as astrophysical objects and a century before the object launching it was imaged. The feature remains one of the best-studied jets in astronomy.
3. Knowledge
4. Relativistic jet
5. M87* - the supermassive black hole in Messier 87
6. Heber Curtis records a curious straight ray in Messier 87
7. Connections
8. Relativistic jet
9. M87* - the supermassive black hole in Messier 87
10. Accretion disc
11. M87* - the supermassive black hole in Messier 87
12. Heber Curtis records a curious straight ray in Messier 87
13. A mechanism for extracting energy from a spinning black hole
14. The M87* ring is imaged in polarised light
15. Relativistic jet
16. Sagittarius A* - the black hole at the centre of the Milky Way
17. Heber Curtis records a curious straight ray in Messier 87
18. A mechanism for extracting energy from a spinning black hole
19. The Event Horizon Telescope observes M87* and Sagittarius A*
20. The first image of a black hole shadow is published
21. The M87* ring is imaged in polarised light
22. A second epoch shows the ring persists and the bright spot moves
23. Evidence
24. Describes the mechanism by which a magnetic field threading a rotating black hole extracts its rotational energy, the leading explanation for relativistic jets. V55 VERIFICATION BASIS: not consulted in session; no research tool was available. Volume and page are from recall and must be checked.