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A mechanism to explain the spectrum of Hessdalen Lights phenomenon

Abstract

In this work, we present a model to explain the apparently contradictory spectrum observed in Hessdalen Lights (HL) phenomenon. According to our model, its nearly flat spectrum on the top with steep sides is due to the effect of optical thickness on the bremsstrahlung spectrum. At low frequencies self-absorption modifies the spectrum to follow the Rayleigh–Jeans part of the blackbody curve. This spectrum is typical of dense ionized gas. Additionally, spectrum produced in the thermal bremsstrahlung process is flat up to a cutoff frequency, ν cut, and falls off exponentially at higher frequencies. This sequence of events forms the typical spectrum of HL phenomenon when the atmosphere is clear, with no fog.

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References

  • Adams MH (2007) Characteristics of the August 7, 2002 recurring Hessdalen Light determined by video and triangulation. In: Cabassi R, Conti N (eds) International Project Hessdalen workshop. Lo Scarabeo, Bologna, pp 107–133 (http://www.ciph-soso.net/SOSO/IPHW2006.html)

  • Bjorn GH (2007) Optical spectrum analysis of the Hessdalen phenomenon. Preliminary report. pp 1–12 (http://www.itacomm.net/ph/2007_HAUGE.pdf)

  • Dawson GA, Jones RC (1969) Ball lightning as a radiation bubble. Pure Appl Geophys PAGEOPH 75:247–262

    Article  Google Scholar 

  • Leone M (2003) A rebuttal of the EMBLA 2002 report on the optical survey in Hessdalen. Italian Committee for Project Hessdalen, pp 1–27 (http://www.itacomm.net/ph/rebuttal.pdf)

  • Leone M (2006) Questioning answers on the Hessdalen phenomenon. J Sci Explor 20:39–68

    Article  Google Scholar 

  • Leone M (2007) On a triangulation of an alleged “Hessdalen light”. Italian Committee for the Project Hessdalen (http://www.itacomm.net/ph/2007_LEONE-IPHW.pdf)

  • Luo B, Zhang S-N (2004) Thermal bremsstrahlung radiation in a two-temperature plasma. Chin J Astron Astrophys 4:275–278

    Article  Google Scholar 

  • Narayana KL (2011) Super moon sky, weather scenario and astronomy study during 19th March 2011 to 26th March 2011. Vol 2011, Issue No. 3, (http://trusciencetrutechnolgy.blogspot.com.br/2011/03/super-moon-sky-weather-scenario-and.html) Accessed 19 Mar 2011

  • Paiva GS (2009) Terrestrial gamma-ray flashes caused by neutron bursts above thunderclouds. J Appl Phys 105:083301-083301-4

    Google Scholar 

  • Paiva GS, Taft CA (2010) A hypothetical dusty-plasma mechanism of Hessdalen lights. J Atmos Solar Terr Phys 72:1200–1203

    Article  Google Scholar 

  • Paiva GS, Taft CA (2011) Color distribution of light balls in Hessdalen Lights phenomenon. J Sci Explor 25(4):735–746

    Google Scholar 

  • Paiva GS, Pavão AC, Vasconcelos EA, Mendes O Jr, Silva EF Jr (2007) Production of ball-lightning-like luminous balls by electrical discharges in silicon. Phys Rev Lett 98:048501-1

    Article  Google Scholar 

  • Paiva GS, Pavao AC, Bastos CC (2009) “Seed” electrons from muon decay for runaway mechanism in the terrestrial gamma ray flash production. J Geophys Res 114(D13):3205

    Article  Google Scholar 

  • Pasko VP, George JJ (2002) Three-dimensional modeling of blue jets and blue starters. J Geophys Res 107:1458

    Article  Google Scholar 

  • Pasko VP, Inan US, Bell TF (2000) Fractal structure of sprites. Geophys Res Lett 27:497–500

    Article  Google Scholar 

  • Rybicki GB, Lightman AP (1979) Radiative processes in astrophysics. Wiley, New York, pp 13–14

    Google Scholar 

  • Takaki S, Ikeya MA (1998) Dark discharge model of earthquake lightning. Jpn J Appl Phys 37:5016–5020

    Article  Google Scholar 

  • Teodorani MA (2004) A long-term scientific survey of the Hessdalen phenomenon. J Sci Explor 18:217–251

    Google Scholar 

  • Teodorani M, Nobili G (2002) EMBLA2002: Optical and ground survey in Hessdalen. Project Hessdalen Articles and Reports (http://hessdalen.hiof.no/reports/EMBLA_2002_2.pdf)

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Acknowledgments

We acknowledge financial support from CNPq and Faperj (Brazil).

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Correspondence to G. S. Paiva.

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Responsible editor: J. Fasullo.

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Paiva, G.S., Taft, C.A. A mechanism to explain the spectrum of Hessdalen Lights phenomenon. Meteorol Atmos Phys 117, 1–4 (2012). https://doi.org/10.1007/s00703-012-0197-5

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  • DOI: https://doi.org/10.1007/s00703-012-0197-5

Keywords

  • Ball Lightning
  • Bremsstrahlung Spectrum
  • Steep Side
  • Thermal Bremsstrahlung
  • Absolute Luminosity