Astrophysics and Space Science

, Volume 32, Issue 2, pp 297–304 | Cite as

Destruction and production of molecules in circumstellar regions of T Tauri stars

  • G. F. Gahm
Article

Abstract

It is shown that the lifetimes of molecules against photodissociation in circumstellar envelopes of T Tauri stars are very short. The production rates of CO through gas-phase reactions are not sufficient to keep the equilibrium column densities at an observable level. The absence of molecular features reported for this class of stars is qualitatively understood.

Keywords

Production Rate Photodissociation Molecular Feature Column Density Tauri Star 

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Copyright information

© D. Reidel Publishing Company 1975

Authors and Affiliations

  • G. F. Gahm
    • 1
  1. 1.Stockholm ObservatorySaltsjöbadenSweden

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