Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999apj...513..287m&link_type=abstract
The Astrophysical Journal, Volume 513, Issue 1, pp. 287-293.
Astronomy and Astrophysics
Astronomy
34
Subject Headings: Ism: Clouds, Molecular Processes
Scientific paper
This paper summarizes the most recent knowledge concerning normal and three-body association ion-molecule reactions between small hydrocarbon ions (C_mH^+_n m=1-6, n=0-9) and the neutral reactants H and H_2. Selected radiative association reaction rate coefficients have been calculated and estimated based on three-body laboratory results. Some of the normal and radiative association rate coefficients have been incorporated into our ``new standard'' model of dense cloud interstellar chemistry. We find that atomic H provides an insufficiently appreciated mechanism to increase the level of saturation of C_mH^+_n ions, with m>3 in dense interstellar clouds despite the fact that the H/H_2 abundance ratio is only 10^-4. New model results show in particular that a significant abundance of the basic aromatic cyclic molecule benzene (c-C_6H_6) can now be produced in dense clouds.
Adams Nigel G.
Babcock Lucia M.
Herbst Eric
McEwan Murray J.
Scott Graham B. I.
No associations
LandOfFree
New H and H_2 Reactions with Small Hydrocarbon Ions and Their Roles in Benzene Synthesis in Dense Interstellar Clouds 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 New H and H_2 Reactions with Small Hydrocarbon Ions and Their Roles in Benzene Synthesis in Dense Interstellar Clouds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New H and H_2 Reactions with Small Hydrocarbon Ions and Their Roles in Benzene Synthesis in Dense Interstellar Clouds will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1443484