Update 9/21

  • Debugging MHD simulation runs. Starting with Bp = 0.54 G, Bs = 13.5 G, cutoff radii of 0.125 and 1*1010 respectively. First run, time to completion approached infinity - fixed this, but simulations are still extremely slow. Currently running short time, high framerate. Also calculated Alfven speed () and plotted contours - high (3.5*107 cm/s) near poles of planet. This seems to be higher than I would expect for the maximum Alfven speed, which should be near 5*106 cm/s.

  • Read three papers on WASP-12b observations (​Absorbing Gas, ​Metals in Exosphere, ​NUV absorption. Observations of WASP-12 have found lines missing from the magnesium spectrum, particularly, which are extremely unlikely to not be radiating from the star. In order to get absorption to the observed levels, it requires a density of a least an order of magnitude more than the interstellar medium. It is therefore hypothesized that WASP-12b is creating a cloud of gas that is capable of creating the observed magnesium absorption lines.

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