Rate Coefficient for H+ + H2(X1Σ+g, ν = 0, J = 0) --> H(1s) + H+2 Charge Transfer and Some Cosmological Implications

Details Rate Coefficient for H+ + H2(X1Σ+g, ν = 0, J = 0) --> H(1s) + H+2 Charge Transfer and Some Cosmological Implications Rate Coefficient for H+ + H2(X1Σ+g, ν = 0, J = 0) --> H(1s) + H+2 Charge Transfer and Some Cosmological Implications

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004apj...606l.167s&link_type=abstract

The Astrophysical Journal, Volume 606, Issue 2, pp. L167-L170.

Astronomy and Astrophysics

Astronomy

25

Atomic Data, Cosmology: Early Universe, Galaxies: Formation, Molecular Data, Molecular Processes, Stars: Formation

Scientific paper

Krstić has carried out the first quantum mechanical calculations near threshold for the charge transfer (CT) process H++H2(X1Σ+g, ν=0, J=0)-->H(1s)+H+2. These results are relevant for models of primordial galaxy and first star formation that require reliable atomic and molecular data for obtaining the hydrogen chemistry of the early universe. Using the results of Krstić, we calculate the relevant CT rate coefficient for temperatures between 100 and 30,000 K. We also present a simple fit that can be readily implemented into early universe chemical models. Additionally, we explore how the range of previously published data for this reaction translates into uncertainties in the predicted gas temperature and H2 relative abundance in a collapsing primordial gas cloud. Our new data significantly reduce these cosmological uncertainties that are due to the uncertainties in the previously published CT rate coefficients.

Affiliated with

Also associated with

No associations

Rating

Rate Coefficient for H+ + H2(X1Σ+g, ν = 0, J = 0) --> H(1s) + H+2 Charge Transfer and Some Cosmological Implications 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 Coefficient for H+ + H2(X1Σ+g, ν = 0, J = 0) --> H(1s) + H+2 Charge Transfer and Some Cosmological Implications, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rate Coefficient for H+ + H2(X1Σ+g, ν = 0, J = 0) --> H(1s) + H+2 Charge Transfer and Some Cosmological Implications will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1180533