Physical model for motion of low-mass meteor particle grazing upper atmosphere layers
Heading:
| 1Kozak, PM 1Astronomical Observatory of the Taras Shevchenko National University of Kyiv, Kyiv, Ukraine |
| Space Sci.&Technol. 2016, 22 ;(4):51-57 |
| https://doi.org/10.15407/knit2016.04.051 |
| Publication Language: Ukrainian |
Abstract: Analysis of TV meteor catalogues for the possible presence of meteors which could be registered after a point of minimal collision with the earth is carried out. The classic liquid drop model is proposed to use for determination of low light Earthgrazers in the mass range 0.001—10 g presence and possibility of their registration. Since a grazing meteor may fly across rare atmosphere layers on heights 80—120 km, we propose to enhance the system of equations of heating and ablation adding the equation of fusion, which can play a significant role in this case.
The equation of fusion was derived basing on the equation of ablation by the introduction of a dimensionless parameter. Using the enhanced system of equations, we found that stony and iron meteor particles of the given mass range can continue vaporization and radiation after the perigee, and some of them burn down completely while the other part leaves the atmosphere in the solid or liquid state.
|
| Keywords: grazing atmosphere meteors, liquid drop model, meteor physics, meteors |
References:
1. Levin B. Ju. Physical Theory of Meteors and the Meteor Matter in the Solar System, 296 p. (Izd-vo AN SSSR, Moscow, 1956) [in Russian].
2. Abe S., Borovicka J., Spurny P., et al. Meteor network team in Japan. Earth-grazing fireball on March 29, 2006, European Planetary Science Congress 2006, Berlin, Germany, 18―22 September 2006, P. 486 (2006).
3. Borovicka J., Ceplecha Z. Earth-grazing fireball of October 13, 1990. Astron. and Astrophys., 257, 323—328 (1992).
4. Campbell-Brown M. D., Koschny D. Model of the ablation of faint meteors. Astron. and Astrophys., 418, 751—758 (2004).
https://doi.org/10.1051/0004-6361:20041001-1
https://doi.org/10.1051/0004-6361:20041001-1
5. Ceplecha Z. Earth-grazing daylight fireball of August 10, 1972. Astron. and Astrophys., 283, 287—288 (1994).
6. Deai P. D. Thermodynamic properties of iron and silicon. J. Phys. Chem. Ref. Data, 15 (3), 967—983 (1986).
https://doi.org/10.1063/1.555761
https://doi.org/10.1063/1.555761
7. Hajdukova M., Kruchinenko V. G., Kazantsev A. M., et al. Perseid meteor stream 1991—1993 from TV observations in Kiev. Earth, Moon and Planets, 68, 297—301 (1995).
https://doi.org/10.1007/BF00671520
https://doi.org/10.1007/BF00671520
8. Koten P., Spurny P., Borovicka J., Stork R. Catalogue of video meteor orbits. Part 1. Publ. Astron. Inst. Acad. Sci. Czech. Republic, 91, 1—32 (2003).
9. Kozak P., Rozhilo O., Kruchynenko V., et al. Results of processing of Leonids - 2002 meteor storm TV observations in Kyiv. Adv. Space Res., 39 (4), 619—623 (2007).
https://doi.org/10.1016/j.asr.2005.08.014
https://doi.org/10.1016/j.asr.2005.08.014
10. Kozak P. M., Rozhilo O. O., Taranukha Y. G. Trajectory parameters and orbital elements of 98 September meteors from double station TV observations in 2001 and 2003. Int. Conf. “Asteroids, Comets, Meteors”, May 16-20, 2012, Niigata, Japan, #6451 (2012).
11. Sonota Co. A meteor shower catalog based on video observations in 2007—2008. WGN, Journal of the International Meteor Organization, 37 (2), P. 55—62 (2009).