All Questions
Tagged with accretion-disk astronomy
5
questions
1
vote
1
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108
views
AGN accretion disk double peak explained?
I have a question to the following lecture: https://ned.ipac.caltech.edu/level5/Fabian4/Fab2_2.html
In Figure 3 it says that a narrow annuli of a Newtonian disk should alrdy show a double peak ...
- 11
9
votes
0
answers
350
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Putting the importance of the blackhole image into perspective [closed]
The recent astonishing achievement of obtaining an actual image of a blackhole, resulted from a massive collaborative work using 8 different telescopes and the equally on par efforts in developing the ...
- 4,685
43
votes
3
answers
10k
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Why isn't the circumferential light around the M87 black hole's event horizon symmetric?
After the revelation of the first black hole images, it seems there is a bias towards the south side. Is it because of measuring it from earth or is it something more fundamental in the understanding ...
- 3,366
5
votes
2
answers
1k
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The difference between sub-Eddington and super-Eddington accretion disk models
I am studying accretion disks around active galactic nuclei (AGN). I have seen two sets of models, sub-Eddington and super-Eddington accretion disks. What do these terms refer to in this case? I ...
- 75
2
votes
0
answers
131
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Accretion disks on neutron star binaries
Why does hydrogen gas from accretion disks not constantly get sucked onto/into a neutron star or into a black hole? I understand that some gets sucked into the black hole and some may come down and ...
- 268