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Cosmic-Ray Ionization Rate in Protoplanetary Disks with Sheared Magnetic Fields

  • Authors: Yuri I. Fujii, Shigeo S. Kimura

Yuri I. Fujii and Shigeo S. Kimura 2022 The Astrophysical Journal Letters 937 .

  • Provider: AAS Journals

Caption: Figure 2.

The top panel shows the ratio of the azimuthal and vertical components of the magnetic field strength at each height from the midplane. The purple jagged line represents 〈B y /B z 〉. We also plot 〈B y 〉/〈B z 〉 in green for comparison. The bottom panel presents the effective column densities that cosmic-ray particles have to go through from the closer surface to reach the corresponding heights. The dashed curves are the vertical column densities that are used in the conventional estimates, and the dotted horizontal line represents the attenuation length of cosmic rays.

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