Exoplanet Modeling and Analysis Center

Geometric Albedo Spectrum for Rocky Exoplanets

Tool Information

Here we present a database of albedo spectra for rocky, Earth-sized and Earth-mass exoplanets, as computed with the NASA Planetary Spectrum Generator tool (psg.gsfc.nasa.gov; Villanueva et al. 2018).

Inputs
Plots

C_dom (H₂O, CH₄, CO₂, SO₂, O₂) The dominant absorbing chemical in the atmosphere: C_mix (-7.0 to -0.01) The log₁₀ of the mixing value of the dominant chemical in the atmosphere: H2_mix (0.0 to 0.5) The mixing ratio of molecular hydrogen in the (otherwise) N2 background gas. Expressed as H2/(H2+N2). P₀ (-1.0 to 2.0) The surface pressure of the planet, in log₁₀ (bars): A_s (0.05 to 0.5) The grey, geometric albedo value of the surface of the planet. M_cld(-3.0 to -1.0) The linear cloud mass of cloud matter in the atmosphere, in log₁₀(kg/m²). C_top(-2.0 to 1.0) The pressure at the top layer of the clouds. Uncheck for cloud-free dataset:

Model Name

Grid Details

Here we present a database of albedo spectra for rocky, Earth-sized and Earth-mass exoplanets, as computed with the NASA Planetary Spectrum Generator tool (psg.gsfc.nasa.gov; Villanueva et al. 2018). The database is presented in two Python .pickle files containing pandas DataFrame objects. The DataFrame index values are wavelength, in micrometers; while the column name values contain the encoded parameters represented in the model object's albedo spectra contained with in that column. Each cell then gives the calculated geometric albedo value for the column-named model planet at the row-indicated wavelength.