Timeline for Are electrons bounded or unbounded to nuclei when they are degenerate?
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
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| May 18, 2023 at 13:13 | comment | added | naturallyInconsistent | That's nice. I'm happy to be corrected this way. | |
| May 18, 2023 at 10:41 | comment | added | John Doty | The current understanding is that white dwarfs do not implode. A white dwarf that becomes unstable ignites before it can implode, and the resulting fusion of He, C, and O into Fe releases sufficient energy to unbind the star, producing a type Ia supernova. It's the cores of giant stars that are thought to collapse to neutron stars and black holes. | |
| May 18, 2023 at 9:53 | comment | added | naturallyInconsistent | @ProfRob The point is that the slower growth rate makes it unable to stop, as opposed to the non-relativistic case. It is very obvious that $K_1\neq K_2$, as you mentioned, and in fact, there must be a constant shifting term too. | |
| May 18, 2023 at 9:50 | comment | added | ProfRob | There is no graph of degeneracy pressure on the wiki page. Plots of degeneracy pressure versus density can be found anywhere. (For example astronomy.stackexchange.com/questions/22373/… ). The source of your confusion is that $K_2$ and $K_1$ are different (they don't even have the same units). Relativistic degeneracy pressure is obviously far higher than non-relativistic degeneracy pressure for the same fermions. | |
| May 18, 2023 at 9:46 | comment | added | naturallyInconsistent | @ProfRob Under the physics section it says $P=K_1\rho^{5/3}$ and $P=K_2\rho^{4/3}$ respectively. The entire graph there is discussing this behaviour. Please stop this. | |
| May 18, 2023 at 9:30 | comment | added | naturallyInconsistent | @ProfRob Wiki disagrees with you, agreeing with my basic astrophysics and statistical thermodynamics notes that relativistic electron degeneracy pressure is smaller than non-relativistic degeneracy pressure en.wikipedia.org/wiki/Chandrasekhar_limit | |
| May 18, 2023 at 9:25 | comment | added | ProfRob | The implosion of a white dwarf to form a neutron star has never been observed and is not thought to be how most of the iron and gold in the universe was created. Relativistic electron degeneracy pressure is greater than non-relativistic degeneracy pressure. | |
| May 18, 2023 at 6:50 | vote | accept | nervousdog | ||
| May 18, 2023 at 11:29 | |||||
| May 18, 2023 at 0:51 | history | answered | naturallyInconsistent | CC BY-SA 4.0 |