Interstellar catalysis. I - The theory of H2 formation

Details Interstellar catalysis. I - The theory of H2 formation Interstellar catalysis. I - The theory of H2 formation

Feb 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978ap%26ss..53..279t&link_type=abstract

Astrophysics and Space Science, vol. 53, no. 2, Feb. 1978, p. 279-294.

Astronomy and Astrophysics

Astrophysics

6

Catalysis, Hydrogen Atoms, Interstellar Chemistry, Adsorption, Chemisorption, Desorption, Hydrogen Recombinations, Metal Particles, Metal Surfaces

Scientific paper

The mechanism by which molecular hydrogen in interstellar space is formed is investigated with reference to recombination reactions on grains. The usually cited rate coefficient k approximately equal to 10 to the -17th cu cm per sec is considered an overestimate, since two-body gas phase reactions are not sufficient by themselves to account for observed H2 abundances. A chemisorption mechanism is proposed, whereby hydrogen reacts with transition metal grains. The resulting catalysis reaction is able to produce as much H2 as the theoretical maximum predicted for cold ice grains, even though the metal grains are less abundant. The catalytic production of H2 on Fe surfaces is described by way of illustration, with attention to rates of desorption

Affiliated with

Also associated with

No associations

Rating

Interstellar catalysis. I - The theory of H2 formation 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 Interstellar catalysis. I - The theory of H2 formation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interstellar catalysis. I - The theory of H2 formation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1034047