Coppola, CM;
Lodi, L;
Tennyson, J;
(2011)
Radiative cooling functions for primordial molecules.
Monthly Notices of the Royal Astronomical Society
, 415
(1)
487 - 493.
10.1111/j.1365-2966.2011.18723.x.
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Abstract
Cooling of primordial gas plays a crucial role in the birth of the first structures in our Universe. Due to the low fractional abundance of molecular species at high redshifts, spontaneous emission rather than collisions represents the most efficient way to cool the pristine plasma. In the present work, radiative cooling functions are evaluated for the diatomic species HD, HD+, HeH+, LiH and LiH+. Cooling functions for the triatomic ions H-3(+) and H2D+ are also considered. Analytic fits as functions of temperature are provided.
| Type: | Article |
|---|---|
| Title: | Radiative cooling functions for primordial molecules |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1111/j.1365-2966.2011.18723.x |
| Publisher version: | http://dx.doi.org/10.1111/j.1365-2966.2011.18723.x |
| Language: | English |
| Additional information: | © 2011 The Authors Monthly Notices of the Royal Astronomical Society © 2011 RAS |
| Keywords: | molecular processes, early Universe, 1st stars, Diatomic-molecules, Electronic states, Lithium hydride, Line list, HD, Chemistry, Ions, Emission |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1305680 |
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