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Planetans—oceanic planets

Solar System Research volume 48, pages 79–89 (2014)Cite this article

Abstract

The development of principles, systems, and instruments enable the detection of exoplanets with 6–8 Earth masses or less. The launches of specialized satellites, such as CoRoT (2006) and Kepler (2009), into orbits around the Earth have enabled the discovery of new exoplanetary systems. These missions are searching for relatively low-mass planets by observing their transits over the disks of their parent stars. At the same time, supporting studies of exoplanets using ground-based facilities (that measure Keplerian components of radial velocities) are in progress. The properties of at least two objects discovered by different methods, Kepler-22 and GJ 1214b, suggested that there was another class of celestial bodies among the known types of extrasolar planets: planetans, or oceanic planets. The structure of Kepler-22 and GJ 1214b suggest that they can be these oceanic planets. In this paper, we consider to what extent this statement is valid. The consideration of exoplanet Gl 581g as an oceanic planet is more feasible. Some specific features of the physical nature of these unusual planets are presented.

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References

  • Borucki, B., 2011. http://archive.stsci.edu/kepler

  • Charbonneau, D., Berta, Z.K., Jonathan, J., et al., A super-Earth transiting a nearby low-mass star, Nature, 2009, vol. 462, pp. 891–894.

    ADS  Article  Google Scholar 

  • Endl, M., NASA’s Kepler mission and the quest for other Earthes, Proc. Workshop Extraterrestrial Life—beyond Our Expectations?, Univ. Vienna, May 21–22, 2012, p. 18.

    Google Scholar 

  • Fei, Y., Mao, H., and Hemley, R., Thermal expansivity, bulk modulus, and melting curve of H2O ice VII to 20 GPa, J. Chem. Phys., 1993, vol. 99, no. 7, pp. 5369–5373.

    ADS  Article  Google Scholar 

  • Ksanfomality, L.V., Extrasolar planets as a case for possible life beyond the Earth, Proc. SPIE-2002, Int. Soc. Opt. Eng., 2002, pp. 4939–4951.

    Google Scholar 

  • Ksanfomality, L.V., On the nature of the object HD 209458b: conclusions drawn from comparison of experimental and theoretical data, Solar Syst. Res., 2004a, vol. 38, no. 4, pp. 300–309.

    ADS  Article  Google Scholar 

  • Ksanfomality, L.V., Regularity of extrasolar planetary systems and the role of the star metallicity in the formation of planets (review), Solar Syst. Res., 2004b, vol. 38, no. 5, pp. 372–383.

    ADS  Article  Google Scholar 

  • Ksanfomality, L.V., Extrasolar low-orbit planets: dissipation of their atmospheres and probable magnetic field, Astron. Lett., 2007, vol. 33, no. 7, p. 488.

    ADS  Article  Google Scholar 

  • Ksanfomality, L. and Lammer, H., Water saturated atmosphere of the exoplanet GJ 1214b, Proc. European Planet. Sci. Conf.-2010 (Europlanet 2010), Roma, Sep. 2010.

    Google Scholar 

  • Ksanfomality, L.V., Possible life discovery at the Venus, Dokl. Akad. Nauk, 2012a, vol. 246, no. 1, pp. 42–47.

    Google Scholar 

  • Ksanfomality, L.V., Venus as a natural laboratory for search of life in high temperature conditions: events on the planet on March 1, 1982, Solar Syst. Res., 2012b, vol. 46, no. 1, pp. 41–53.

    ADS  Article  Google Scholar 

  • Kuchner, M.J., Volatile-rich Earth-mass planets in the habitable zone, Astrophys. J., 2003, vol. 596, pp. L105–L108.

    ADS  Article  Google Scholar 

  • Leger, A., Selsis, F., Sotin, C., et al., A new family of planets, Ocean-planets, Icarus, 2004, vol. 169, pp. 499–504.

    ADS  Article  Google Scholar 

  • Lissauer, J.L., A closely packed system of low-mass, low-density planets transiting Kepler-11, Nature, 2011, vol. 470, no. 7332, pp. 53–58.

    ADS  Article  Google Scholar 

  • Marcy, G., Water world larger than Earth, Nature, 2009, vol. 462, pp. 853–854.

    ADS  Article  Google Scholar 

  • Papaloizou, J.C.B., Nelson, R.P., Kley, W., et al., Diskplanet interactions during planet formation, in Protostars and Planets V, Tucson: Univ. Arizona Press, 2006.

    Google Scholar 

  • Schneider, J., Planet: GL 581g, in The Extrasolar Planet Encyclopedia, 2010. http://exoplanet.eu/planet.php?=GL581g

    Google Scholar 

  • Schneider, J., Notes for star Kepler-11, in The Extrasolar Planet Encyclopedia, 2011. http://exoplanet.eu/star.php?st=Kepler-11

    Google Scholar 

  • Schneider, J., Planet: Kepler-22 b, in The Extrasolar Planet Encyclopedia, 2012. http://exoplanet.eu/planet.php?p1=Kepler-22&p2=b

    Google Scholar 

  • Seager, S., Exoplanet Atmospheres: Physical Processes, Princeton: Princeton Univ. Press, 2010.

    Google Scholar 

  • Selsis, F., Chazelas, B., Borde, P., et al., Could we identify hot ocean-planets with CoRoT, Kepler and doppler velocimetry?, Icarus, 2007, vol. 191, pp. 453–468.

    ADS  Article  Google Scholar 

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Authors and Affiliations

  1. Space Research Institute, Russian Academy of Sciences, Moscow, Russia

    L. V. Ksanfomality

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  1. L. V. Ksanfomality
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Original Russian Text © L.V. Ksanfomality, 2014, published in Astronomicheskii Vestnik, 2014, Vol. 48, No. 1, pp. 81–91.

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Ksanfomality, L.V. Planetans—oceanic planets. Sol Syst Res 48, 79–89 (2014). https://doi.org/10.1134/S0038094614010055

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  • DOI: https://doi.org/10.1134/S0038094614010055

Keywords

  • Solar System Research
  • Cloud Layer
  • Protoplanetary Disk
  • Saturated Water Vapor
  • Extrasolar Planet