Clarifying the spectral dependence of the imaginary part of the refractive in dex of aerosole in the atmosphere of Jupiter in the short waves range of spectrum
| 1Ovsak, AS, 1Morozhenko, OV 1Main Astronomical Observatory of the National Academy of Sciences of Ukraine, Kyiv, Ukraine |
| Kinemat. fiz. nebesnyh tel (Online) 2017, 33(5):59-67 |
| https://doi.org/10.15407/kfnt2017.05.059 |
| Start Page: Dynamics and Physics of Solar System Bodies |
| Language: Russian |
Abstract: A method for correct determining of relative contribution of aerosol into the scattering properties of gas-aerosol medium in continuum spectrum was proposed. As a result, we received the more realistic values of the imaginary part of refractive index of aerosol particles (for the model of homogeneous spheres) in the Jovian atmosphere in the short waves range of spectrum. We used the spectral values of Jupiter’s geometric albedo they had been measured in 1993. The assessed value is as follows: ni = 0.00378, 0.00309, 0.00254, 0.00175, 0.00123, 0.00084, 0.00064, 0.00045, 0.00031, 0.00033, 0.00013, 0.00008 at the wavelengths of λλ 320, 350, 375, 400, 420, 450, 470, 500, 520, 550, 606, 631 nm, respectively. |
| Keywords: aerosol particles, imaginary part of the refractive index, Jupiter |
References:
1.A. V. Morozhenko, “Jovian cloud stratification,” Sov. Astron. Lett. 10, 323–325 (1984).
2.A. V. Morozhenko, “Vertical structure of the latitude cloud bands of Jupiter,” Sol. Syst. Res. 19, 44–52 (1985).
3.A. V. Morozhenko, “Problems of the vertical structure of cloud layers in the atmospheres of giant planets,” Kinematika Fiz. Nebesnykh Tel 9 (6), 3–26 (1993).MathSciNet
4.A. V. Morozhenko, “Difference in the vertical structure of cloud layers of giant planets,” Kinematika Fiz. Nebesnykh Tel 17, 261–278 (2001).
5.A. V. Morozhenko and A. S. Ovsak, “On the possibility of determining the imaginary part of the complex refractive index of aerosol particles in an individual altitudinal cloud layer of Jupiter’s atmosphere,” Kinematics Phys. Celestial Bodies 32, 294–298 (2016).
https://doi.org/10.3103/S0884591316060064
6.A. V. Morozhenko and E. G. Yanovitskij, “Parameters of an optical model of the Jupiter atmosphere for continuous spectra in the 0.35–0.92 micron region,” Sov. Astron. Lett. 2, 20–21 (1976).
7.Z. M. Dlugach and M. I. Mischenko, “The effect of aerosol shape in retrieving optical properties of cloud particles in the planetary atmospheres from the photopolarimetric data. Jupiter,” Sol. Syst. Res. 39, 102–111 (2005).
https://doi.org/10.1007/s11208-005-0026-1
8.Z. M. Dlugach and M. I. Mischenko, “Photopolarimetry of planetary atmospheres: What observational data are essential for a unique retrieval of aerosol microphysics?,” Mon. Not. R. Astron. Soc. 384, 64–70 (2008).
https://doi.org/10.1111/j.1365-2966.2007.12679.x
9.E. Karkoschka, “Spectrophotometry of the Jovian planets and Titan at 300-to 1000-nm wavelength: The methane spectrum,” Icarus 111, 967–982 (1994).
https://doi.org/10.1006/icar.1994.1139
10.V. N. Khare, C. Sagan, E. T. Arakawa, et al., “Optical constants of organic tholins produced in a simulated Titanian atmosphere: From soft x-ray to microwave frequencies,” Icarus 60, 127–137 (1984).
https://doi.org/10.1016/0019-1035(84)90142-8
11.B. N. Khare, C. Sagan, W. R. Thompson, et al., “Solid hydrocarbon aerosols produced in simulated Uranian and Neptunian stratospheres,” J. Geophys. Res.: Space Phys. 92, 15067–15082 (1987).
https://doi.org/10.1029/JA092iA13p15067
12.M. I. Mishchenko, “Physical properties of the upper tropospheric aerosols in the equatorial region of Jupiter,” Icarus 84, 296–304 (1990).
https://doi.org/10.1016/0019-1035(90)90039-C
13.A. V. Morozhenko, “New determination of monochromatic methane absorption coefficients with regard to the thermal conditions in the atmospheres of giant planets. IV. Jupiter and Saturn,” Kinematics Phys. Celestial Bodies 23, 245–257 (2007).
https://doi.org/10.3103/S0884591307060025
14.A. V. Morozhenko and A. S. Ovsak, “On the possibility of separation of aerosol and methane absorption in the long-wavelength spectral range for giant planets,” Kinematics Phys. Celestial Bodies 31, 225–231 (2015).
https://doi.org/10.3103/S0884591315050074
15.A. V. Morozhenko, A. S. Ovsak, A. P. Vid’machenko, V. G. Teifel, and P. G. Lysenko, “Imaginary part of the refractive index of aerosol in latitudinal belts of Jupiter’s disc,” Kinematics Phys. Celestial Bodies 32, 30–37 (2016).
https://doi.org/10.3103/S0884591316010062
16.A. V. Morozhenko and E. G. Yanovitskii, “The optical properties of Venus and the Jovian planets I. The atmosphere of Jupiter according to polarimetric observations,” Icarus 18, 583–592 (1973).
https://doi.org/10.1016/0019-1035(73)90060-2
17.A. S. Ovsak, “Upgraded technique to analyze the vertical structure of the aerosol component of the atmospheres of giant planets,” Kinematics Phys. Celestial Bodies 29, 291–300 (2013).
https://doi.org/10.3103/S0884591313060056
18.A. S. Ovsak, “Variations of the volume scattering coefficient of aerosol in the Jovian atmosphere from observations of the planetary disk,” Kinematics Phys. Celestial Bodies 31, 197–204 (2015).
https://doi.org/10.3103/S0884591315040066
19.A. S. Ovsak, V. G. Teifel, A. P. Vid’machenko, and P. G. Lysenko, “Zonal differences in the vertical structure of the cloud cover of Jupiter from the measurements of the methane absorption bands at 727 and 619 nm,” Kinematics Phys. Celestial Bodies 31, 119–130 (2015).
https://doi.org/10.3103/S0884591315030058
20.V. Ragent, D. S. Colburn, K. A. Rages, et al., “The clouds of Jupiter: Results of the Galileo Jupiter mission probe nephelometer experiment,” J. Geophys. Res.: Planets 103, 22891–22909 (1998).
https://doi.org/10.1029/98JE00353
21.S. Vinatier, P. Rannou, S. M. Anderson, et al., “Optical constants of Titan’s stratospheric aerosols in the 70–1500 cm-1 spectral range constrained by Cassini/CIRS observations,” Icarus 219, 5–12 (2012).
https://doi.org/10.1016/j.icarus.2012.02.009
22.E. G. Yanovitskij and A. S. Ovsak, “Effective optical depth of absorption line formation in semi-infinite planetary atmospheres,” Kinematics Phys. Celestial Bodies 13 (4), 1–19 (1997).
23.X. Zhang, R. A. West, D. Banfield, and Y. L. Yung, “Stratospheric aerosols on Jupiter from Cassini observations,” Icarus 226, 159–171 (2013).
https://doi.org/10.1016/j.icarus.2013.05.020
24.Xi. Zhang, R. A. West, P. G. J. Irwin, et al., “Aerosol influence on energy balance of the middle atmosphere of Jupiter,” Nat. Commun. 6, 10231 (2015).
https://doi.org/10.1038/ncomms10231