Rate coefficients of the reactions of ions with polar molecules at interstellar temperatures

Details Rate coefficients of the reactions of ions with polar molecules at interstellar temperatures Rate coefficients of the reactions of ions with polar molecules at interstellar temperatures

Sep 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...296l..31a&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 296, Sept. 15, 1985, p. L31-L34. SERC-USAF-supporte

Astronomy and Astrophysics

Astrophysics

57

Gas-Ion Interactions, Interstellar Chemistry, Interstellar Matter, Molecular Clouds, Molecular Interactions, Dipole Moments, Hydrogen Ions, Temperature Dependence

Scientific paper

A theory has been developed recently which predicts that the rate coefficients, k, for the reactions of ions with polar molecules at low temperatures will be much greater than the canonical value of 10 to the -9th cu cm/s. The new theory indicates that k is greatest for low-lying rotational states and increases rapidly with decreasing temperature. Recent laboratory measurements which validate the theory, are examined, calculated values of k for the reactions of H3(+) ions with several polar molecules are presented, and their significance to interstellar chemistry is discussed. For the reactions of ions with molecules having large dipole moments, it is recommended that k values as large as 10 to the -7th cu cm/s should be used in ion-chemical models of low-temperature instellar clouds.

Affiliated with

Also associated with

No associations

Rating

Rate coefficients of the reactions of ions with polar molecules at interstellar temperatures does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Rate coefficients of the reactions of ions with polar molecules at interstellar temperatures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rate coefficients of the reactions of ions with polar molecules at interstellar temperatures will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-798839