The KOSMA-τ PDR model - I. Recent updates to the numerical model of photo-dissociated regions

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Table D.3

Photo-desorption yields

species	Y_i	Ref
O,¹⁸O	10⁻⁴	(1)
H₂O,H₂¹⁸O	10⁻³(1.3 + 0.032 T_d) (1 − e^−x/l(T))	(2)
H₂O → OH + H
H₂¹⁸O → ¹⁸OH + H	2 × 10⁻³	(3)
CO,¹³CO,C¹⁸O,¹³C¹⁸O	10⁻²	(4)

Notes. Y_i = 10⁻³ for all other species. x is the ice thickness in ML, l(T) 0.6 + 0.024T.

References. (1) Hollenbach et al. (2009); (2) Öberg et al. (2009); (3) Andersson & van Dishoeck (2008); (4) Fayolle et al. (2011)

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