| '' Ad-Dahhak said "When the Shayatin are shot with it | Electron degeneracy pressure provides a rather soft limit against further compression; therefore, for a given chemical composition, white dwarfs of higher mass have a smaller volume |
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| The Prophet recited it in Makkah and prostrated | Since the core-collapse supernova mechanism itself is imperfectly understood, it is still not known whether it is possible for a star to collapse directly to a black hole without producing a visible supernova, or whether some supernovae initially form unstable neutron stars which then collapse into black holes; the exact relation between the initial mass of the star and the final remnant is also not completely certain |
| And the Night as it gets Darker S | Black holes are predicted by the theory of |
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| Those who were with him did the same, except an old man who took a handful of soil and prostrated on it | '' Al-Bukhari recorded this Hadith in several places of his Sahih, as did Muslim, Abu Dawud and An-Nasa'i, using various chains of narration through Abu Ishaq from Abdullah |
Mass transfer in a may cause an initially stable white dwarf to surpass the Chandrasekhar limit.
26| , negatively curved like the surface of a saddle | This inability to collapse means that no white dwarf more massive than approximately 1 |
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| A star of less than about half the mass of the Sun will be unable to ignite helium fusion as noted earlier , and will produce a white dwarf composed chiefly of helium | Heavier elements favor continued core collapse, because they require a higher temperature to ignite, because electron capture onto these elements and their fusion products is easier; higher core temperatures favor runaway nuclear reaction, which halts core collapse and leads to a |
The mass at which this occurs is not known with certainty, but is currently estimated at between 2 and 3 solar masses.
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