The σ-capricornids fireball shower

Authors

  • Babadzhanov P.B. Institute of Astrophysics, Academy of Sciences of the Republic of Tajikistan, Dushanbe, Tajikistan
  • Kokhirova G.I. Institute of Astrophysics, Academy of Sciences of the Republic of Tajikistan, Dushanbe, Tajikistan
  • Khamroev U.Kh. Institute of Astrophysics, Academy of Sciences of the Republic of Tajikistan, Dushanbe, Tajikistan

UDC

523.532

Abstract

During 2010-2011 years by the Tajikistan fireball network three fireballs were photographed which belong to the σ-Capricornids meteor shower. As a result of astrometric and photometric reductions of the obtained images, the atmospheric trajectories, radiants, velocities, orbits, and light curves of the fireballs, as well as the photometric masses of meteoroids produced these fireballs were determined. Taking into account the observations else six fireballs of this shower in the Canada and USA, the period of shower activity 5-24 July was determined as well as, for the first time, the mean daily radiant drift was found to be Δα =0.6° for the right ascension and Δδ =0.3° for the declination. The coordinates of mean radiant are equal to α =300.4° and δ =-12.4° at the Solar longitude L= 115.6°, which corresponds to the 18 July.

Keywords:

fireball shower, fireball, atmospheric trajectory, radiant, orbit, light curve, mass, density

Author info

  • Pulat B. Babadzhanov

    академик АН РТ, д-р физ.-мат. наук, профессор, заведующий отделом метеорной астрономии Института астрофизики АН Республики Таджикистан

  • Gulchekhra I. Kokhirova

    д-р физ.-мат. наук, ведущий научный сотрудник отдела метеорной астрономии, заместитель директора по научной работе Института астрофизики АН Республики Таджикистан

  • Umedzhon Kh. Khamroev

    младший научный сотрудник отдела метеорной астрономии Института астрофизики АН Республики Таджикистан

References

  1. Бабаджанов П.Б., Кохирова Г.И. Фотографические болидные сети // Известия АН РТ. Отд. физ.-мат., хим., геол. и техн. наук. 2009a. №2(135). С. 46-55.
  2. Sekanina Z. Statistical Model of Meteor Streams. III. Stream Search Among 19303 Radio Meteors // Icarus. 1973. Vol. 18. No. 2. P. 253-284.
  3. Sekanina Z. Statistical model of meteor streams. IV - A study of radio streams from the synoptic year // Icarus. 1976. Vol. 27. No. 2. P. 265-321.
  4. Jenniskens P. Meteor Showers and their Parent Comets. New York: Cambridge Univ. Press, 2006. 790 p.
  5. Terentjeva A.K. Fireball streams // Asteroids, Comets, Meteors III: Proceed. of a meeting ACM 89 held at the Astronomical Observatory of the Uppsala University, June 12-16, 1989 / Eds. C.I. Lagerkvist, H. Rickman, B.A. Lindblad, M. Lindgren. - Uppsala: Universitet Reprocentralen. 1990. P. 579-584.
  6. Babadzhanov P.B. Meteor showers associated with the Near-Earth Asteroid (2101) Adonis // Astron. and Astrophys. 2003. Vol. 397. No. 1. P. 319-323.
  7. Babadzhanov P.B., Kokhirova G.I., Khamroev U.Kh. The Capricornids Asteroid-meteoroid complex // Proceedings of the IAU conf. "Meteoroids 2013", 26-30 August, 2013, Poznan, Poland (in press).
  8. Бабаджанов П.Б., Кохирова Г.И., Боровичка И., Спурны П. Фотографические наблюдения болидов в Таджикистане // Астрон. вестник. 2009b. Vol. 43. No. 4. C. 367-376.
  9. Ceplecha Z., McCrosky R.E. Fireball end heights - A diagnostic for the structure of meteoric material // J. of Geophys. Res. 1976. Vol. 81. No. 35. P. 6257-6275.
  10. Halliday I., Griffin A.A., Blackwell A.T. Detailed data for 259 fireballs from the Canadian camera network and inferences concerning the influx of large meteoroids // Meteoritics and Planetary Sci. 1996. Vol. 31. P. 185-217.
  11. McCrosky R.E., Shao S.-Y., Posen A. Prairie Network fireballs. I - General information and orbits // Meteoritika. 1978. Vol. 37. P. 44-59. In Russian.
  12. Southworth R.B., Hawkins G.S. Statistics of meteor streams // Smith. Contrib. Astrophys. 1963. No. 7. P. 261-285.
  13. Shrbeny L., Spurny P. Precise data on Leonid fireballs from all-sky photographic records // Astron. and Astrophys. 2009. Vol. 506. Iss. 3. P. 1445-1454.
  14. Babadzhanov P.B., Kokhirоva G.I. Densities and porosities of meteoroids // Astron. and Astrophys. 2009c. Vol. 495. Iss. 1. P. 353-358.
  15. Кохирова Г.И., Литвинов С.П., Хамроев У.Х. Аномальный болид метеорного потока Леонид // Докл. АН РТ. 2010. Vol. 53. No. 9. С. 674-678.
  16. Zolensky M.E., Zega T.J., Yano H., et al. Mineralogy and Petrology of Comet 81P/Wild 2 Nucleus Samples // Science. 2006. Vol. 314. Iss. 5806. P. 1735-1739.

Downloads

Download data is not yet available.

Issue

Pages

15-20

Section

Article

Dates

Submitted

October 27, 2013

Accepted

November 3, 2013

Published

December 30, 2013

How to Cite

[1]
Babadzhanov, P.B., Kokhirova, G.I., Khamroev, U.K., The σ-capricornids fireball shower. Ecological Bulletin of Research Centers of the Black Sea Economic Cooperation, 2013, № 4, pp. 15–20.

Similar Articles

1-10 of 92

You may also start an advanced similarity search for this article.

Most read articles by the same author(s)