Astronomical School’s Report, 2018, Volume 14, Issue 2, Pages 51–55

https://doi.org/10.18372/2411-6602.14.07
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UDC 523.4

Changes in the activity factor of Jupiter's hemispheres again are periodic

Vidmachenko A.P.

The Main astronomical observatory of the NAS of Ukraine, 03143, Academician Zabolotny str., 27, Kyiv, Ukraine

Abstract

The eccentricity of the orbit (e = 0.04845) and the fact that at the summer solstice for the northern hemisphere Jupiter is at perihelion, this part of the atmosphere receives 21% more solar energy than the southern one. The change in the solar energy influx over the solar activity cycle is a fraction of a percent in the visible portion of the spectrum, and tens of percent in the ultraviolet range. The influence of the eccentricity of the orbit on the growth of the influx of solar energy to the northern hemisphere leads to an increase in temperature in the deep layers of the troposphere with a delay of 5–6 years. And at the maximum of solar activity, the flux of solar energy increases significantly only in the ultraviolet region of the spectrum. And this leads to an increase in temperature mainly in the stratosphere with a lag of 1–2 years. Solar activity globally affects the entire planet, and seasonal variations alternately change the optical properties of the northern and southern hemispheres of the planet. Proposed by us the brightness ratio of the northern and southern tropical and temperate regions is a good factor in the photometric activity of the AJ(T) processes in the Jovian atmosphere. In 1962–1995 and 2012–2018 correlation between changes in factor AJ, solar activity and the moments of passage of perihelion and aphelion of the orbit – was high with a correlation coefficient above 0.85. This is due to the synchronization of the change in the influx of solar energy into the hemispheres of the planet due to eccentricity of the orbit and changes in solar activity. In 1995–2012 a violation of periodicity in changes of the ratio AJ was observed. Taking into account the reaction of the hydrogen-helium atmosphere on 5–6 years at the level of visible clouds in the troposphere, and on 1–2 years in the upper troposphere and the lower stratosphere, – in the same years was the maximal discrepancy between the time of passage of Jupiter at orbit through perihelion and aphelion, and by moments of minima and maxima of solar activity. This confirms the existence of seasonal changes in the atmosphere of Jupiter with a period of ∼ 11.87 years.

Keywords: Jupiter; atmosphere; seasonal variations; solar activity

References

  1. Gierasch P.J., Goody R.M. (1969). Radiative time constant in the atmosphere of Jupiter. Journal of Atmospheric Science, 26, 979–980. https://doi.org/10.1175/1520-0469(1969)026<0979:rtcita>2.0.co;2
  2. Klimenko V.M., Morozhenko A.V., Vid'machenko A.P. (1980). Phase effect for the brightness coefficient of the central disk of Saturn and features of Jupiter's disk. Icarus, 42, 354–357. https://doi.org/10.1016/0019-1035(80)90101-3
  3. Kuroda T., Medvedev A.S., Hartogh P. (2014). Parameterization of radiative heating and cooling rates in the stratosphere of Jupiter. Icarus, 242, 149–157. https://doi.org/10.1016/j.icarus.2014.08.001
  4. Morozhenko A.V., Ovsak A.S., Vid'machenko A.P., Teifel V.G., Lysenko P.G. (2016). Imaginary Part of the Refractive Index of Aerosol in Latitudinal Belts of Jupiter's Disc. Kinematics and Physics of Celestial Bodies, 32, No. 1, 30–37. https://doi.org/10.3103/s0884591316010062
  5. Ovsak A.S., Teifel V.G., Vid'machenko A.P., Lysenko P.G. (2015). 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 and Physics of Celestial Bodies, 31, No. 3, 119–130. https://doi.org/10.3103/s0884591315030058
  6. Sanchez-Lavega A., Rodrigo R. (1985). Ground-based observations of synoptic cloud systems in southern equatorial to temperate latitudes of Jupiter from 1975 to 1983. Astron. Astrophys., 148, 67–78.
  7. Shliakhetska Ya.O., Vidmachenko A.P. Changes in the Activity of the Hemispheres of Jupiter in 2016–2017 Again Became Close to Periodic 49th Lunar and Planetary Science Conference 19–23 March, 2018, held at The Woodlands, Texas LPI Contribution No. 2083, id.1079.
  8. Trafton L.M., Stone P.H. (1974). Radiative-Dynamical Equilibrium States for Jupiter. Astrophysical Journal, 188, 649–656. https://doi.org/10.1086/152759
  9. Vid'machenko A.P. (2002). Brightness variations on Jupiter and free oscillations in its atmosphere. Kinematics and Physics of Celestial Bodies, 18, No. 3, 157–167.
  10. Vid'machenko A.P. (1985). On the activity of Jupiter's atmosphere. Kinematika i Fizika Nebesnykh Tel, 1, No. 5, 91.
  11. Vid'machenko A.P. (1997). Time variations of methane absorption in the Jupiter's atmosphere. Kinematika i Fizika Nebesnykh Tel, 13, No. 6, 26–32.
  12. Vid'machenko A.P. (1999). Variations in Reflective Characteristics of Jupiter's Atmosphere. Solar System Research, 33, No. 6, 464–469.
  13. Vid'machenko A.P. (1997). Temporal changes in methane absorption in Jupiter's atmosphere. Kinematics and Physics of Celestial Bodies, 13, No. 6, 21–25.
  14. Vidmachenko A.P. (2016). Activity of processes on the visible surfaces of Solar System bodies. Astronomical School's Report, 12, No. 1, 14–26. https://doi.org/10.18372/2411-6602.12.1014
  15. Vidmachenko A.P. (1994). Brightness variations of celestial objects in astronomical observations at the Maidanak mountain. Kinematics and Physics of Celestial Bodies, 10, No. 5, 62–68.
  16. Vidmachenko A.P. (2015). Influence of solar activity on seasonal variations of methane absorption in the atmosphere of Saturn. Kinematics and Physics of Celestial Bodies, 31, No. 3, 131–140. https://doi.org/10.3103/s088459131503006x
  17. Vidmachenko A.P. (2016). Influence of Solar Activity on the Brightness Factor of Photometric Activity of Jupiter's Hemispheres. 47th Lunar and Planetary Science Conference. March 21–25 2016. Woodlands, Texas. LPI Contribution No. 1903., 1092.
  18. Vidmachenko A.P. (2015). Influence of solar activity on the seasonal variation of methane absorption at Saturn. 17th International scientific conference Astronomical School of Young Scientists. May 20–22 2015. Zhytomyr, Ukraine. The program and abstracts., 14–16.
  19. Vidmachenko A.P. (1985). Activity of processes in the atmosphere of Jupiter. Kinematics and Physics of Celestial Bodies, 1, No. 5, 101–102.
  20. Vidmachenko A.P. (1998). On activity of Jupiter's atmosphere. 29th Annual Lunar and Planetary Science Conference, March 16–20, 1998, Houston, TX, abstract No. 1092., 1–2.
  21. Vidmachenko A.P. (2018). Periodicity in changes of Jupiter's hemispheres activity factor is continues to recover in 2018. 20 International scientific conference Astronomical School of Young Scientists. May 23–24 2018. The program and abstracts. Uman, Ukraine., 93–95.
  22. Vidmachenko A.P. (2016). Periodic changes of the activity of processes in Jupiter's atmosphere. Astronomical School's Report, 12, No. 1, 27–37. https://doi.org/10.18372/2411-6602.12.1027
  23. Vidmachenko A.P. (2016). Seasonal changes on Jupiter. I. The factor activity of hemispheres. Kinematics and Physics of Celestial Bodies, 32, No. 4, 189–195. https://doi.org/10.3103/s0884591316040073
  24. Vidmachenko A.P. (2016). Seasonal Changes on Jupiter: 2. Influence of the Planet Exposure to the Sun. Kinematics and Physics of Celestial Bodies, 32, No. 4, 283–293. https://doi.org/10.3103/s0884591316060076
  25. Vidmachenko A.P. (1999). Variations in Reflective Characteristics of Jupiter's Atmosphere. Solar System Research, 33, 464–469.
  26. Vidmachenko A.P. (1994). Variations in the brightness of celestial objects in astronomical observations mount Maidanak. Kinematics and Physics of Celestial Bodies, 10, No. 5, 52–56.
  27. id'machenko A.P. (1991). Giant planets – Theoretical and observational aspects. Astronomicheskii Vestnik, 25, 277–292.
  28. Vidmachenko A.P., Klimenko V.M., Morozhenko A.V. (1980). Multicolor photometry of features on the disk of Jupiter. I – Relative spectrophotometry in the 1977–1978 observing period. Solar System Research, 14, No. 2, 62–67.
  29. Vidmachenko A.P., Steklov A.F., Minyailo N.F. (1984). Seasonal activity on Jupiter. Soviet Astronomy Letters, 10, 289–290.
  30. Vidmachenko A.P., Steklov A.F., Minyajlo N.F. (1984). Seasonal activity on Jupiter? Pis'ma v Astronomicheskii Zhurnal, 10, 691–695.
  31. Wagener R., Caldwell J. (1988). Strong north/south asymmetry in the Jovian atmosphere. Icarus, 74, No. 1, 141–152. https://doi.org/10.1016/0019-1035(88)90036-x
  32. West R.A. (1979). Spatially resolved methane band photometry of Jupiter. I. Analysis of the south equatorial belt and the south tropical zone reflectivity. Icarus, 38, No. 1, 34–53. https://doi.org/10.1016/0019-1035(79)90083-6
  33. http://kardasis.weebly.com/ – Manos Kardasis.
  34. http://obs.nineplanets.org/obs/obslist.html – Amateur Astronomical Observatories.
  35. http://www.acquerra.com.au/astro/gallery/jupiter/index.live – Anthony Wesley.
  36. http://www.damianpeach.com/jupiter.htm – Damian Peach.
  37. http://jupiter.cstoneind.com/ – Christopher Go.
  38. http://www.david-tyler.com/ – David Tyler.
  39. https://www.flickr.com/photos/johnkazanas/albums/ – John Kazanas.
  40. http://trevsastronomy.webs.com/ – Trevor Barry.
  41. http://momilika.net/Index.html/ – Milika Nicholas.
  42. http://www.sidc.be/silso/monthlyssnplot

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