Photodesorption of ices I : CO , N 2 and CO 2

  title={Photodesorption of ices I : CO , N 2 and CO 2},
  author={Karin I. {\"O}berg and Ewine F. van Dishoeck and Harold Linnartz},
Context. A long-standing problem in astrochemistry is how molecules can be maintained in the gas phase in dense interand circum-stellar regions. Photodesorption is a non-thermal desorption mechanism, which may explain the small amounts of observed cold gas in cloud cores and disk mid-planes. Aims. The aim is to determine the UV photodesorption yields and to constrain the photodesorption mechanisms of three astrochemically relevant ices: CO, N2 and CO2. In addition, the possibility of co… CONTINUE READING


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