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Explanation: What would it look like to circle a black hole? If the black hole was surrounded by a swirling disk of glowing and accreting gas, then the great gravity of the black hole would deflect light emitted by the disk to make it look very unusual. The featured animated video gives a visualization. The video starts with you, the observer, looking toward the black hole from just above the plane of the accretion disk. Surrounding the central black hole is a thin circular image of the orbiting disk that marks the position of the photon sphere -- inside of which lies the black hole's event horizon. Toward the left, parts of the large main image of the disk appear brighter as they move toward you. As the video continues, you loop over the black hole, soon looking down from the top, then passing through the disk plane on the far side, then returning to your original vantage point. The accretion disk does some interesting image inversions -- but never appears flat. Visualizations such as this are particularly relevant today as black holes are being imaged in unprecedented detail by the Event Horizon Telescope.
Singularity Impressive:
It's Black Hole Week at NASA!
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: black hole - accretion disk
Publications with words: black hole - accretion disk
See also:
- APOD: 2024 November 24 Á Journey to the Center of the Galaxy
- APOD: 2024 October 1 Á Porphyrion: The Longest Known Black Hole Jets
- APOD: 2024 June 16 Á Animation: Black Hole Destroys Star
- Simulation: Two Black Holes Merge
- The Galaxy, the Jet, and a Famous Black Hole
- APOD: 2024 May 7 Á Black Hole Accreting with Jet
- APOD: 2024 May 5 Á A Black Hole Disrupts a Passing Star