X-ray photo-desorption of NH3 and N2 from ammonia ices: Mechanisms and yields in protoplanetary disks

Open Access

Fig. 3

Post-irradiation TPD. The legend gives the temperature at which the ice was deposited and kept during irradiation. Mass fragments 17 and 28 were used to follow the thermal desorption of NH₃ and N₂, respectively. Total fluence received by the ices ~4 × 10¹⁶ ph cm⁻². Heating rate 12 K min⁻¹.

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