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Investigations of Ultraviolet Spectral Approximations for Computing Photodissociation and Photoionization Reaction Rates

  • Authors: Jamila Pegues, L. Ilsedore Cleeves, Karin Öberg, Edwin A. Bergin, Ewine F. van Dishoeck, Valentine Wakelam

Jamila Pegues et al 2026 The Astronomical Journal 171 .

  • Provider: AAS Journals

Caption: Figure 14.

The ultraviolet and X-ray radiation distributions used within the fiducial case for each astrochemical disk model (Section 2.4). From left to right, the columns display the estimated ultraviolet radiation continuum (FUV,cont.), the subtracted Lyα radiation (FUV,Lyα), the total ultraviolet radiation (FUV,tot.), and the X-ray radiation (FX). All distributions are depicted in ﹩{\mathrm{log}}_{10}﹩ scale. Ultraviolet contours are shown at [106, 108, 1010, 1012] photons s−1 cm−2, and X-ray contours are shown at [106, 107, 108, 109] photons s−1 cm−2. From top to bottom, the rows display the distributions for each star, in order of increasing stellar mass (Table 1).

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