three-body H2 formation rate update
http://adsabs.harvard.edu/abs/2013arXiv1306.5163F
Rate of three-body recombination of hydrogen molecules during primordial star formation (article)
Author
{Forrey}, R.~C.
Journal
ArXiv e-prints
Year
2013
Month
June
Keywords
Astrophysics - Cosmology and Extragalactic Astrophysics
Abstract
Astrophysical models of primordial star formation require rate constants for three-body
recombination as input. The current status of these rates for H2 due to collisions with
H is far from satisfactory, with published rate constants showing orders of magnitude
disagreement at the temperatures relevant for H2 formation in primordial gas. This letter
presents an independent calculation of this recombination rate constant as a function of
temperature. An analytic expression is provided for the rate constant which should be
more reliable than ones currently being used in astrophysical models.