On the possibility of separation of the aerosole and methane absorptions in the long wave length region of the giant planets spectrum

1Morozhenko, OV, 1Ovsak, AS
1Main Astronomical Observatory of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
Kinemat. fiz. nebesnyh tel (Online) 2015, 31(5):20-29
Start Page: Dynamics and Physics of Solar System Bodies
Language: Russian
Abstract: 

A method for determination of aerosol absorption component τκэф of the effective optical depth was been developed. It based on introducing the unreal effect of the decreasing of aerosol scattering component τaэф on the dependence on atmospheric pressure P in case of τκэф = 0. Eliminating this effect by adjusting the value of the τκэф, we have determined the its value. We have tested the method on observational data of North Equatorial Belt (NEB) of Jupiter’s disk in the absorption bands of methane on 619 and 727 nm, which allowed us to determine the value of τκэф and the imaginary part of the refractive index of aerosol particles (ni = 0.00063, 0.00065, 0.0007, 0.00069 on λλ 605.5, 631.3, 714.7 and 741.4 nm, respectively) and to specify a characteristic of vertical structure of the planet’s cloud layer.

Keywords: aerosol and methane absorption, giant planets, Jupiter
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