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- Polytrope (redirección desde Polytropic gas)of proportionality. The constant n is known as the polytropic index; note however that the polytropic index has an alternative definition as with n as the…7 kB (863 palabras) - 12:04 19 mar 2024
- Air mass (astronomy) (sección Polytropic atmosphere)κ {\displaystyle \kappa } is the polytropic exponent (or polytropic index). The air mass integral for the polytropic model does not lend itself to a closed-form…35 kB (5388 palabras) - 00:20 20 ene 2024
- gravitational potential of a Newtonian self-gravitating, spherically symmetric, polytropic fluid. It is named after astrophysicists Jonathan Homer Lane and Robert…20 kB (3440 palabras) - 22:00 14 abr 2024
- gravitational potential of a Newtonian self-gravitating, spherically symmetric polytropic fluid Synestia Circumplanetary disk – Accumulation of matter around a…9 kB (1149 palabras) - 07:41 26 mar 2024
- corresponds to the polytropic index of an isothermal gas).[citation needed] So the second case is the rule rather than an exception in stars. This is the reason…19 kB (2957 palabras) - 16:12 4 feb 2024
- explanations for Cepheid variable stars. He began by extending Karl Schwarzschild's earlier work on radiation pressure in Emden polytropic models. These models treated…53 kB (6251 palabras) - 01:40 2 may 2024
- Hayashi track (redirección desde Hayashi track stars)= K ρ 1 + 1 / n {\displaystyle P=K\rho ^{1+1/n}} , where n=1.5 is the polytropic index. Applying the equation to the center of the star gives: P c = (…24 kB (3733 palabras) - 22:39 23 nov 2023
- Radiation zone (sección Main sequence stars){T^{4}}{P}}} so that T4 is proportional to P throughout the star. This gives the polytropic equation (with n=3): P = ( 3 c k B 4 4 σ B μ 4 1 − β β 4 ) 1 / 3 ρ 4 /…11 kB (1718 palabras) - 19:15 4 abr 2024
- helium starts to fuse in the core. The Schoenberg-Chandrasekhar limit: A polytropic approximation, Martin Beech, Astrophysics and Space Science 147, #2 (August…3 kB (446 palabras) - 03:57 24 ene 2020
- Note that although the equation reduces to the Lane–Emden equation with polytropic index 3/2{\displaystyle 3/2}, the initial condition is not that of the…6 kB (1204 palabras) - 16:13 8 feb 2024
- be estimated from the star approximate polytropic index. Note that this does not hold for large enough stars, where the radiation pressure is larger…16 kB (2427 palabras) - 18:16 3 dic 2023
- original on 2011-08-14. Retrieved 2016-02-08., and a concise treatise on stars by NASA is here "NASA - Star". Archived from the original on 2010-10-24…104 kB (12 973 palabras) - 02:31 30 abr 2024
- gases, and solid states as well as the state of matter in the interior of stars. At present, there is no single equation of state that accurately predicts…38 kB (5388 palabras) - 05:55 25 abr 2024
- effect is unnoticeable at everyday pressures but is significant in neutron stars, although it has not been experimentally tested. Fluid pressure is most…44 kB (5649 palabras) - 02:15 16 abr 2024
- frequently not modeled directly but rather characterized by an effective polytropic equation of state. More recent simulations use a multimodal distribution…45 kB (5608 palabras) - 07:05 7 abr 2024
- the increase because gravity causes dispersed matter to accumulate into stars, which collapse eventually into black holes. The entropy of a black hole…108 kB (13 924 palabras) - 10:50 6 abr 2024
- Heat capacity (sección Stars and black holes)of thermodynamic equilibrium. They include gravitating objects such as stars and galaxies, and also some nano-scale clusters of a few tens of atoms close…19 kB (2773 palabras) - 12:03 19 abr 2024
- 2(9/8)^{2/3}}}\approx [{\text{ς}},\gamma \sigma ]_{\text{max}},} where the polytropic index γ{\displaystyle \gamma } is the sound speed in units of velocity…79 kB (15 411 palabras) - 08:26 12 ene 2024
- retrieved 23 June 2016 Garfinkel, Boris (1967), "Astronomical Refraction in a Polytropic Atmosphere", The Astronomical Journal, 72 (2): 235–254, Bibcode:1967AJ…30 kB (3728 palabras) - 06:38 8 feb 2024
- introducing polytropic solutions, modelling of a much broader range of stellar objects was possible. His theories also suggested that stars have a boundary…9 kB (809 palabras) - 13:14 23 abr 2024
- collapse of long-destroyed supernova stars (which created these atoms). In cosmology and astronomy the phenomena of stars, nova, supernova, quasars and gamma-ray…59 kB (7454 palabras) - 18:40 6 abr 2024