Difference between revisions of "User:Tohline/Appendix/Ramblings/RiemannB74C692"
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=Another S-type Example b74c692= | =Another S-type Example b74c692= | ||
This chapter is an extension of the chapter we have titled, "[[User:Tohline/ThreeDimensionalConfigurations/MeetsCOLLADAandOculusRiftS|Riemann Meets COLLADA & Oculus Rift S]]." Other closely related chapters are listed below under the heading, "[[#See_Also|See Also]]". | This chapter is an extension of the chapter we have titled, "[[User:Tohline/ThreeDimensionalConfigurations/MeetsCOLLADAandOculusRiftS|Riemann Meets COLLADA & Oculus Rift S]]." In that chapter we used as our first example of a Riemann S-type ellipsoid the model with parameters, <b>b41c385</b>. Other closely related chapters are listed below under the heading, "[[#See_Also|See Also]]". | ||
{{LSU_HBook_header}} | |||
==Key Physical Parameters== | |||
The model that we have chosen to use in our second successful construction of a COLLADA-based, 3D and interactive animation has the following properties; this model has been selected from [[User:Tohline/ThreeDimensionalConfigurations/RiemannStype#Table2|Table 2 of our accompanying discussion of Riemann S-type ellipsoids]]: | |||
<table border="0" cellpadding="5" align="center"> | |||
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<td align="center" rowspan="5"> | |||
<b>Figure 1a</b><br /> | |||
[[File:EFE_STypeRiemannDiagram05.png|325px|EFE Parameter Space]] | |||
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<td align="center" rowspan="5" width="2%"> | |||
| |||
</td> | |||
<td align="center" colspan="3"> | |||
<math>~\frac{b}{a} = 0.41</math> | |||
</td> | |||
<td align="center" rowspan="5" width="2%"> | |||
| |||
</td> | |||
<td align="center" rowspan="5" bgcolor="lightgrey"> | |||
<b>Figure 1b</b><br /> | |||
[[File:COLLADA3rdViewpoint.png|300px|EFE Model b41c385]] | |||
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<td align="center" colspan="3"> | |||
<math>~\frac{c}{a} = 0.385</math> | |||
</td> | |||
</tr> | |||
<tr> | |||
<td align="center"> | |||
''Direct'' | |||
</td> | |||
<td align="center" width="2%" rowspan="3"> | |||
| |||
</td> | |||
<td align="center"> | |||
''Adjoint'' | |||
</td> | |||
</tr> | |||
<tr> | |||
<td align="center"> | |||
<math>~\Omega_\mathrm{EFE} = 0.547874</math> | |||
</td> | |||
<td align="center"> | |||
<math>~\Omega_\mathrm{EFE} = - 0.079886</math> | |||
</td> | |||
</tr> | |||
<tr> | |||
<td align="center"> | |||
<math>~\lambda_\mathrm{EFE} = 0.079886</math> | |||
</td> | |||
<td align="center"> | |||
<math>~\lambda_\mathrm{EFE} = - 0.547874</math> | |||
</td> | |||
</tr> | |||
</table> | |||
The subscript "EFE" on Ω and λ means that the relevant frequency is given in units that have been adopted in [<b>[[User:Tohline/Appendix/References#EFE|<font color="red">EFE</font>]]</b>], that is, in units of <math>~[\pi G\rho]^{1 / 2}</math>. In Figure 1a, the solid purple circular marker (where the pair of purple lines cross) identifies the location of this model in the "c/a versus b/a" diagram that appears as Figure 2 on p. 902 of [http://adsabs.harvard.edu/abs/1965ApJ...142..890C S. Chandrasekhar (1965)]; essentially the same diagram appears in §49 (p. 147) of [<b>[[User:Tohline/Appendix/References#EFE|<font color="red">EFE</font>]]</b>]. | |||
=See Also= | =See Also= |
Revision as of 02:45, 29 May 2020
Another S-type Example b74c692
This chapter is an extension of the chapter we have titled, "Riemann Meets COLLADA & Oculus Rift S." In that chapter we used as our first example of a Riemann S-type ellipsoid the model with parameters, b41c385. Other closely related chapters are listed below under the heading, "See Also".
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Key Physical Parameters
The model that we have chosen to use in our second successful construction of a COLLADA-based, 3D and interactive animation has the following properties; this model has been selected from Table 2 of our accompanying discussion of Riemann S-type ellipsoids:
|
<math>~\frac{b}{a} = 0.41</math> |
|
||||
<math>~\frac{c}{a} = 0.385</math> |
||||||
Direct |
|
Adjoint |
||||
<math>~\Omega_\mathrm{EFE} = 0.547874</math> |
<math>~\Omega_\mathrm{EFE} = - 0.079886</math> |
|||||
<math>~\lambda_\mathrm{EFE} = 0.079886</math> |
<math>~\lambda_\mathrm{EFE} = - 0.547874</math> |
The subscript "EFE" on Ω and λ means that the relevant frequency is given in units that have been adopted in [EFE], that is, in units of <math>~[\pi G\rho]^{1 / 2}</math>. In Figure 1a, the solid purple circular marker (where the pair of purple lines cross) identifies the location of this model in the "c/a versus b/a" diagram that appears as Figure 2 on p. 902 of S. Chandrasekhar (1965); essentially the same diagram appears in §49 (p. 147) of [EFE].
See Also
- Discussion of Ou's Riemann-Like Ellipsoids
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