Analytical Models of Exoplanetary Atmospheres. V. Non-gray Thermal Structure with Coherent Scattering

Mohandas, Gopakumar; Pessah, Martin E.; Heng, Kevin (2018). Analytical Models of Exoplanetary Atmospheres. V. Non-gray Thermal Structure with Coherent Scattering. Astrophysical journal, 858(1), p. 1. Institute of Physics Publishing IOP 10.3847/1538-4357/aab35d

Preview

Text Mohandas_2018_ApJ_858_1.pdf - Published Version Available under License Publisher holds Copyright. Download (515kB) | Preview

We apply the picket fence treatment to model the effects brought about by spectral lines on the thermal structure of irradiated atmospheres. The lines may be due to pure absorption processes, pure coherent scattering processes, or some combination of absorption and scattering. If the lines arise as a pure absorption process, the surface layers of the atmosphere are cooler, whereas this surface cooling is completely absent if the lines are due to pure coherent isotropic scattering. The lines also lead to a warming of the deeper atmosphere. The warming of the deeper layers is, however, independent of the nature of line formation. Accounting for coherent isotropic scattering in the shortwave and longwave continuum results in anti-greenhouse cooling and greenhouse warming on an atmosphere-wide scale. The effects of coherent isotropic scattering in the line and continuum operate in tandem to determine the resulting thermal structure of the irradiated atmosphere.

Interest & Impact

Downloads

252 since deposited on 03 Jun 2019
20 in the past 12 months

Citations

5 Citations in Web of Science ®
6 Citations in Scopus

Search

in Google Scholar™

Services

Actions (login required)

Edit item

Actions (login required)

Edit item