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=====Visual Comparison===== With the above information in hand, we can now directly compare the eigenfunction of the unstable, ''m'' = 2 mode discovered and defined analytically by [http://adsabs.harvard.edu/abs/1985MNRAS.216..553B Blaes (1985)] with the eigenfunction of unstable, ''m'' = 2 modes found by the [[#See_Also|Imamura & Hadley collaboration]] while using numerical hydrodynamic techniques to simulate the evolution of similarly slim tori. Panel A of Figure 3 displays a pair of plots, extracted from [http://adsabs.harvard.edu/abs/2014Ap%26SS.353..191H Hadley et al. (2014; Paper II)], that present information regarding the ''m'' = 2 mode, nonaxisymmetric structure that developed in the equatorial plane of their model P4. The model P4 disk/torus is geometrically slim <math>~(\beta \approx 0.18)</math> and its mass, although not zero, is only 1% of the mass of the central star <math>~(M_*/M_\mathrm{disk} = 10^2)</math>. Panel B of Figure 3 displays a similar pair of plots from a separate, [[Appendix/Ramblings/HadleyAndImamuraSupplementaryDatabase#Supplementary_Dataset_Generated_by_Hadley_.26_Imamura_Collaboration|unpublished Hadley et al. model evolution]]; in this model, the disk/torus mass is only 0.1% that of the central star <math>~(M_*/M_\mathrm{disk} = 10^3)</math>. In both panels, the blue curves show the geometric structure of non-axisymmetric, equatorial-plane density fluctuations, <math>~|\rho^'/\rho_0|_2</math>, and the red curves show the structure of the "enthalpy + gravity" perturbation, <math>~\mathcal{W}</math>: The left-hand plot displays log<sub>10</sub> of (the modulus of) the amplitude versus radius; while the right-hand plot displays the unstable mode's constant phase locus. In each of these plots, the radial coordinate is, <math>~\chi \equiv \varpi/\varpi_0</math>. Panel C of Figure 3 presents similar plots that we have generated to show the ''m'' = 2 mode, non-axisymmetric, equatorial-plane density and enthalpy fluctuations predicted by the [http://adsabs.harvard.edu/abs/1985MNRAS.216..553B Blaes (1985)] analysis. More specifically, on the left, we have plotted (blue curve) <math>~\log_{10}|g_{0,0,2}|</math> versus <math>~\chi</math>, for <math>~\beta = 0.12</math> and a normalization coefficient, <math>~C = 4</math>; and (red curve) <math>~\log_{10}\mathcal{W}</math> versus <math>~\chi</math>, where we have used a normalization coefficient, <math>~C = 2</math>. (See the third column of Table 5 for example data values.) On the right, we present an equatorial-plane plot of (see columns five and six of Table 5) the constant phase locus, <math>~\tfrac{1}{2}\alpha_{0,0,2}</math> versus <math>~\chi</math>, and — reflecting the ''m'' = 2 mode structure — its twin phase locus, shifted in entirety by <math>~\pi</math> radians. [Note that, in the right-hand plot we have flipped the sign of <math>~\varphi_\mathrm{max}</math> in order to match the sign convention exhibited by the constant phase locus plots presented by the [[#See_Also|Imamura & Hadley collaboration]].] <div align="center" id="Figure3"> <table border="1" align="center" cellpadding="5"> <tr><th><font size="+1">Figure 3: Comparison</font></th></tr> <tr><th><font size="+1">Panel A: Model P4 from [http://adsabs.harvard.edu/abs/2014Ap%26SS.353..191H Hadley et al. (2014; Paper II)];</font><p></p> <math>~M_*/M_\mathrm{disk} = 100</math></th></tr> <tr><td align="right"> [[File:Montage01Apart1.png|500px|center|Imamura & Hadley collaboration]] </td></tr> <tr><th><font size="+1">Panel B: [[Appendix/Ramblings/HadleyAndImamuraSupplementaryDatabase#Supplementary_Dataset_Generated_by_Hadley_.26_Imamura_Collaboration|Unpublished model]] from Imamura & Hadley collaboration;</font><p></p> <math>~M_*/M_\mathrm{disk} = 1000</math></th></tr> <tr><td align="right"> [[File:Montage01Apart3.png|500px|center|Imamura & Hadley collaboration]] </td></tr> <tr><th><font size="+1">Panel C: [http://adsabs.harvard.edu/abs/1985MNRAS.216..553B Blaes (1985)] Analytic Solution with</font> <math>~(\beta, m, C) = (0.12, 2, 0.25)</math>;<p></p> <math>~M_*/M_\mathrm{disk} = \infty</math></th></tr> <tr><td align="right"> [[File:BlaesAnalyticCombined3.png|500px|center|Analytic Solution from Blaes(1985)]] </td></tr> </table> </div>
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