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On the possibility of the Dyson spheres observable beyond the infrared spectrum

Published online by Cambridge University Press:  26 June 2018

Z. Osmanov  and
V. I. Berezhiani
Z. Osmanov*
Affiliation:
School of Physics, Free University of Tbilisi, 0183 Tbilisi Georgia
V. I. Berezhiani
Affiliation:
School of Physics, Free University of Tbilisi, 0183 Tbilisi Georgia
*
Author for correspondence: Z. Osmanov, E-mail: z.osmanov@freeuni.edu.ge
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Abstract

In this paper, we revisit the Dysonian approach and assume that a superadvanced civilization is capable of building a cosmic megastructure located closer than the habitable zone (HZ). Then such a Dyson Sphere (DS) might be visible in the optical spectrum. We have shown that for typical high melting point metamaterial – Graphene, the radius of the DS should be of the order of 1011 cm, or even less. It has been estimated that energy required to maintain the cooling system inside the DS is much less than the luminosity of a star. By considering the stability problem, we have found that the radiation pressure might stabilize dynamics of the megastructure and as a result it will oscillate, leading to interesting observational features – anomalous variability. The similar variability will occur by means of the transverse waves propagating along the surface of the cosmic megastructure. In the summary, we also discuss the possible generalization of the definition of HZs that might lead to very interesting observational features.

Keywords

Dyson sphereextraterrestriallife-detectionSETI
Type
Research Article
Information
International Journal of Astrobiology , Volume 17 , Issue 4 , October 2018 , pp. 356 - 360
Copyright
Copyright © Cambridge University Press 2018 

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References

Boyajian, TS et al. (2016) Planet Hunters IX. KIC 8462852 - where's the flux? Monthly Notices of the Royal Astronomical Society 457, 3988.Google Scholar
Bradbury, RJ, Cirkovic, MM and Dvorsky, G (2011) Dysonian Approach to SETI: A Fruitful Middle Ground? Journal of the British Interplanetary Society 64, 156.Google Scholar
Cai, W et al. (2010) Thermal Transport in Suspended and Supported Monolayer Graphene Grown by Chemical Vapor Deposition. Nano Letters 10, 1645.Google Scholar
Carrigan, RA (2009) IRAS-Based Whole-Sky Upper Limit on Dyson Spheres. The Astrophysical Journal 698, 2075.Google Scholar
Carroll, BW and Ostlie, DA (2010) An Introduction to Modern Astrophysics and Cosmology. Cambridge University Press, Cambridge, UK.Google Scholar
Cirkovic, MM (2008) The Temporal Aspect of the Drake Equation and SETI. AsBio 4, 225.Google Scholar
Cirkovic, MM and Bradbury, RJ (2006) Galactic gradients, postbiological evolution and the apparent failure of SETI. New Astronomy 11, 628.Google Scholar
Dyson, F (1960) Search for Artificial Stellar Sources of Infrared Radiation. Science 131, 1667.Google Scholar
Griffith, RL et al. (2015) The Ĝ Infrared Search for Extraterrestrial Civilizations with Large Energy Supplies. III. The Reddest Extended Sources in WISE. The Astrophysical Journal 217, 25.Google Scholar
Harp, GR et al. (2016) Radio SETI Observations of the Anomalous Star KIC 8462852. The Astrophysical Journal 825, 1.Google Scholar
Jugaku, J and Nishimura, S (2002) in Proceedings of the IAU Symposium 213, Bioastronomy 2002: Life Among the Stars, , Norris, R and Stootman, F (eds), (San Francisco, CA: ASP)pp. 437.Google Scholar
Kardashev, NS (1964) Transmission of Information by Extraterrestrial Civilizations. Soviet Astronomy 8, 217.Google Scholar
Los, JH et al. (2015) Melting temperature of graphene. Physical Review B 91, 045415.Google Scholar
Osmanov, Z (2016) On the search for artificial Dyson-like structures around pulsars. International Journal of Astrobiology 15, 127.Google Scholar
Osmanov, Z (2017) Are the Dyson rings around pulsars detectable? International Journal of Astrobiology 17, 112–115.Google Scholar
Pop, E, Varshney, V and Roy, A (2012) Thermal properties of graphene: Fundamentals and applications. MRS Bulletin 37, 1273.Google Scholar
Sagan, C (2000) The Cosmic Connection: An Extraterrestrial Perspective, Agel, J (ed). Cambridge University Press, Cambridge, UK.Google Scholar
Sandberg, A (1999) The physics of information processing superobjects: daily life among the Jupiter brains. Journal of Evolution and Technology 5, 1.Google Scholar
Schuetz, M et al. (2016) Optical SETI Observations of the Anomalous Star KIC 8462852. The Astrophysical Journal Letters 825, L5.Google Scholar
Slish, VI (1985) in The Search for Extraterrestrial Life: Recent Developments, Papagiannis, MD (ed). (Boston, MA: Reidel Pub. Co.)pp. 315.Google Scholar
Timofeev, MY, Kardashev, NS and Promyslov, VG (2000) A search of the IRAS database for evidence of Dyson Spheres. Acta Astronautica Journal 46, 655.Google Scholar
Wright, JT et al. (2016) The Ĝ Infrared Search for Extraterrestrial Civilizations with Large Energy Supplies. IV. The Signatures and Information Content of transiting megastructures. The Astrophysical Journal 816, 22.Google Scholar