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Magnetic Fields and the Triaxiality of Molecular Cloud Cores

  • Authors: Shantanu Basu

Basu 2000 The Astrophysical Journal Letters 540 L103.

  • Provider: AAS Journals

Caption: Fig. 3.

Simulated contours (solid lines) and mean polarization direction (dashed lines) for a triaxial body with axial ratios ﹩( \xi ,\,\zeta ) =( 0.3,\, 0.6) ﹩ seen from three sets of viewing angles ﹩( \theta ,\,\phi ) ﹩. The ﹩x^{\prime }﹩ and ﹩y^{\prime }﹩ axes are in the plane of the sky and are chosen to lie along the projected major and minor axes, and ﹩a^{\prime }﹩ is the apparent semimajor axis. The dashed lines lie along the projected direction of the intrinsic z‐axis: (a) ﹩( \theta ,\,\phi ) =( \pi / 2,\, 0) ﹩, yielding an apparent axis ratio ﹩q=0.3﹩ and and offset angle ﹩\Psi =0^{\circ }﹩; (b) ﹩( \theta ,\,\phi ) =( \pi / 4,\,\pi / 4) ﹩, yielding ﹩q=0.57﹩ and ﹩\Psi =28^{\circ }﹩; and (c) ﹩( \theta ,\,\phi ) =( \pi / 6,\, 0) ﹩, yielding ﹩q=0.68﹩ and ﹩\Psi =90^{\circ }﹩.

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