Cooling by H3+ Emission

Steve Miller; Tom Stallard; Jonathan Tennyson; Henrik Melin

doi:10.1021/jp312468b

Cooling by H3+ Emission

Steve Miller^*, Tom Stallard, Jonathan Tennyson, Henrik Melin

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

41 Citations (Scopus)

Abstract

Emission by the H3+ molecular ion may be important in determining the energy balance in astrophysical situations, such as in (exo)planetary atmospheres. Here we report the calculation of a new cooling function, based on refitted partition functions and a recalculation of the total energy emitted by the molecule. This new function gives significantly increased cooling at higher temperatures, typical of those found in the atmospheres of gas giants. It is shown that nonthermal effects also need to be considered. A link to a web-based code to calculate radiative cooling in H2/H3+ gas mixtures, including the effects of departures from equilibrium, is provided.

Original language	English
Pages (from-to)	9770-9777
Number of pages	8
Journal	Journal of Physical Chemistry A
Volume	117
Issue number	39
Early online date	26 Jul 2013
DOIs	https://doi.org/10.1021/jp312468b
Publication status	Published - 3 Oct 2013
Externally published	Yes

Access to Document

10.1021/jp312468b

Cite this

@article{9254faccaf194d9c9c1c50f5ad5933c4,

title = "Cooling by H3+ Emission",

abstract = "Emission by the H3+ molecular ion may be important in determining the energy balance in astrophysical situations, such as in (exo)planetary atmospheres. Here we report the calculation of a new cooling function, based on refitted partition functions and a recalculation of the total energy emitted by the molecule. This new function gives significantly increased cooling at higher temperatures, typical of those found in the atmospheres of gas giants. It is shown that nonthermal effects also need to be considered. A link to a web-based code to calculate radiative cooling in H2/H3+ gas mixtures, including the effects of departures from equilibrium, is provided.",

author = "Steve Miller and Tom Stallard and Jonathan Tennyson and Henrik Melin",

year = "2013",

month = oct,

day = "3",

doi = "10.1021/jp312468b",

language = "English",

volume = "117",

pages = "9770--9777",

journal = "Journal of Physical Chemistry A",

issn = "1089-5639",

publisher = "American Chemical Society",

number = "39",

}

TY - JOUR

T1 - Cooling by H3+ Emission

AU - Miller, Steve

AU - Stallard, Tom

AU - Tennyson, Jonathan

AU - Melin, Henrik

PY - 2013/10/3

Y1 - 2013/10/3

N2 - Emission by the H3+ molecular ion may be important in determining the energy balance in astrophysical situations, such as in (exo)planetary atmospheres. Here we report the calculation of a new cooling function, based on refitted partition functions and a recalculation of the total energy emitted by the molecule. This new function gives significantly increased cooling at higher temperatures, typical of those found in the atmospheres of gas giants. It is shown that nonthermal effects also need to be considered. A link to a web-based code to calculate radiative cooling in H2/H3+ gas mixtures, including the effects of departures from equilibrium, is provided.

AB - Emission by the H3+ molecular ion may be important in determining the energy balance in astrophysical situations, such as in (exo)planetary atmospheres. Here we report the calculation of a new cooling function, based on refitted partition functions and a recalculation of the total energy emitted by the molecule. This new function gives significantly increased cooling at higher temperatures, typical of those found in the atmospheres of gas giants. It is shown that nonthermal effects also need to be considered. A link to a web-based code to calculate radiative cooling in H2/H3+ gas mixtures, including the effects of departures from equilibrium, is provided.

U2 - 10.1021/jp312468b

DO - 10.1021/jp312468b

M3 - Article

SN - 1089-5639

VL - 117

SP - 9770

EP - 9777

JO - Journal of Physical Chemistry A

JF - Journal of Physical Chemistry A

IS - 39

ER -