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

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

Feb 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975ap%26ss..32..297g&link_type=abstract

Astrophysics and Space Science, vol. 32, Feb. 1975, p. 297-304.

Astronomy and Astrophysics

Astrophysics

2

Carbon Monoxide, Molecular Gases, Molecular Interactions, Stellar Envelopes, T Tauri Stars, Abundance, Chemical Reactions, Interstellar Extinction, Interstellar Matter, Life (Durability), Photodissociation, Protostars, Stellar Radiation, Ultraviolet Radiation

Scientific paper

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 mole- cular features reported for this class of stars is qualitatively understood

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