SSC/Stability/GammaVariation: Difference between revisions
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Created page with "=How Does Stability Change with γ<sub>g</sub>?= ==Isolated Uniform-Density Configuration== =How Does Stability Change with P<sub>e</sub>?=" |
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==Isolated Uniform-Density Configuration== | ==Isolated Uniform-Density Configuration== | ||
From the [[SSC/Stability/UniformDensity#Sterne's_General_Solution|general solution]] derived by {{ Sterne37full }}, we have … | |||
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[[File:Sterne1937SolutionPlot1.png|350px|center|Sterne (1937)]] | |||
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[[File:Sterne1937CritGamma1.png|350px|center|Sterne (1937)]] | |||
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The first few solutions are displayed in the following boxed-in image that has been extracted directly from §2 (p. 587) of {{ Sterne37 }}; to the right of his table, we have added a column that expressly records the value of the square of the normalized eigenfrequency that corresponds to each of the solutions presented by {{ Sterne37hereafter }}. | |||
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<table border="2" cellpadding="5" width="70%"> | |||
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Table of exact eigenvector expressions extracted from §2 (p. 587) of …<br /> | |||
{{ Sterne37figure }} | |||
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<math>\frac{n^2}{4\pi G \bar\rho}</math> | |||
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<!-- [[File:Sterne1937SolutionTable1.png|600px|center|Sterne (1937)]] --> | |||
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<td align="right"><math>j=0 \, ;</math> </td> | |||
<td align="right"><math>\mathfrak{F}=0 \, ;</math> </td> | |||
<td align="right"> <math>\xi_1 = 1</math></td> | |||
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<td align="center"><math>\gamma - 4/3</math></td> | |||
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<td colspan="1" rowspan="1"> | |||
<table border="0" align="left"> | |||
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<td align="right"><math>j=1 \, ;</math> </td> | |||
<td align="right"><math>\mathfrak{F}= 14 \, ;</math> </td> | |||
<td align="right"><math>\xi_1 = 1 - (7/5)x^2</math></td> | |||
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<td align="center"><math>2(5\gamma - 2)/3</math></td> | |||
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<td colspan="1" rowspan="1"> | |||
<table border="0" align="left"> | |||
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<td align="right"><math>j=2 \, ;</math> </td> | |||
<td align="right"><math>\mathfrak{F}= 36 \, ;</math> </td> | |||
<td align="right"><math>\xi_1 = 1 - (18/5)x^2 + (99/35)x^4</math></td> | |||
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<td align="center"><math>7\gamma - 4/3</math></td> | |||
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<table border="0" align="left"> | |||
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<td align="right"><math>j=3 \, ;</math> </td> | |||
<td align="right"><math>\mathfrak{F}=66 \, ;</math> </td> | |||
<td align="right"><math>\xi_1 = 1 - (33/5)x^2 + (429/35)x^4 - (143/21)x^6</math></td> | |||
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</table> | |||
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<td align="center"><math>12\gamma - 4/3</math></td> | |||
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</table> | |||
</div> | |||
=How Does Stability Change with P<sub>e</sub>?= | =How Does Stability Change with P<sub>e</sub>?= | ||
Revision as of 20:31, 3 January 2024
How Does Stability Change with γg?
Isolated Uniform-Density Configuration
From the general solution derived by 📚 T. E. Sterne (1937, MNRAS, Vol. 97, pp. 582 - 593), we have …
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The first few solutions are displayed in the following boxed-in image that has been extracted directly from §2 (p. 587) of 📚 Sterne (1937); to the right of his table, we have added a column that expressly records the value of the square of the normalized eigenfrequency that corresponds to each of the solutions presented by Sterne37.
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Table of exact eigenvector expressions extracted from §2 (p. 587) of … |
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