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Ken G's latest activity
Ken G
replied to the thread
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Where Are the Missing Black Holes in the Milky Way?
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I agree that whether it has 2 solar masses or 3 shouldn't matter much, but that's why I'm wondering why those Xray sources in the...
Mar 30, 2024
Ken G
replied to the thread
I
Where Are the Missing Black Holes in the Milky Way?
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Yes, binaries do allow conditions to keep the pulsars shining, making them more visible as with black holes. But I do think it's true...
Mar 28, 2024
Ken G
replied to the thread
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Where Are the Missing Black Holes in the Milky Way?
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OK that's a good point, gravitational detectability can last billions of years, so one can ask how many NSs are known by their pulsing...
Mar 26, 2024
Ken G
replied to the thread
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Stellar evolution path and Regression line
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Do you still have any unresolved questions?
Mar 25, 2024
Ken G
replied to the thread
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Where Are the Missing Black Holes in the Milky Way?
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I think it is not terribly surprising that BHs are found much less often than NSs, because NSs have their own beams that you only have...
Mar 25, 2024
Ken G
replied to the thread
I
Where Are the Missing Black Holes in the Milky Way?
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Yes that's a good way to get insight. We can even venture out of the Milky Way and look at SN 1987a, where JWST was able to find the...
Mar 24, 2024
Ken G
replied to the thread
A
Atmospheric Density Required for Mercury´s Polar Regions to be Warm?
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Interesting point, that with the right atmosphere the poles might be livable, but we know the atmosphere must be thinner than Earth...
Mar 24, 2024
Ken G
replied to the thread
I
Where Are the Missing Black Holes in the Milky Way?
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I think if we do what @snorkack suggests, the numbers come out pretty consistent with what @Vanadium 50 got. It's often said the MW has...
Mar 23, 2024
Ken G
replied to the thread
I
Where Are the Missing Black Holes in the Milky Way?
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You are exactly correct. As you saw from information above, a black hole is created when the core is above somewhere between 2.2 and 3...
Mar 23, 2024
Ken G
replied to the thread
I
Stellar evolution path and Regression line
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It sounds to me like you are just talking about "main sequence stars", the core hydrogen burning phase that most stars are in. If you...
Mar 9, 2024
Ken G
replied to the thread
I
What are the Dynamics and Impacts of a Type II Supernova?
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Yeah, that irony could be the basic reason why supernova simulations have such a tough time actually getting explosions to happen...
Mar 9, 2024
Ken G
replied to the thread
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Why Does Spectral Line Darkening Occur Despite Photon Re-Emission?
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That may be true in the low density chromosphere, but there is more to the question of "line darkening" (usually called absorption...
Mar 9, 2024
Ken G
replied to the thread
B
Questions about dark matter/energy
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I think another way to frame the question of "modified gravity vs. dark matter" is instead of asking "which one is what's really...
Mar 9, 2024
Ken G
replied to the thread
B
Temperature of Solar Wind: Complexities of Measuring Heat in a Stream of Particles
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The key point is that collisions between particles of different mass share energy more slowly than particles of the same mass, so this...
Mar 9, 2024
Ken G
replied to the thread
I
What are the Dynamics and Impacts of a Type II Supernova?
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You have it backward, the fact that photodisintegrating nuclei removes energy means that support is taken away by that process, the...
Mar 9, 2024
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