| Volumes and Issues Contents of Issue 6 Special Issue |
www.atmos-chem-phys-discuss.net/3/6721/2003/
© Author(s) 2003. This work is licensed
under a Creative Commons License.
Evaporation of high speed sporadic meteors
1Air Force Research Laboratory, Space Vehicles Directorate, Hanscom AFB, MA 01731, USA
2Radex, Inc., 3 Preston Court, Bedford, MA 01730, USA
Abstract. Recent measurements conducted at the Arecibo Observatory report high-speed sporadic meteors having velocities near 50 km/s. The results seem to indicate a bimodal velocity distribution in the sporadic meteors (maxima at ~20 km/s and ~50 km/s). The particles have a maximum mass of ~1 μg. This paper will present an analysis of the ablation of 1 μg meteoroids having velocities of 20, 30, 50, and 70 km/s. The calculations show that there is fractionation even for the fast meteoroids, the effect being particularly noticeable for the 1 μg sporadic particles, and less so for the heavier particles. The relevance of the calculations to the radar observations of the sporadic meteors will be discussed.
Discussion Paper (PDF, 788 KB) Interactive Discussion (Closed, 2 Comments) Final Revised Paper (ACP)
Citation: Murad, E. and Roth, C.: Evaporation of high speed sporadic meteors, Atmos. Chem. Phys. Discuss., 3, 6721-6732, 2003. Bibtex EndNote Reference Manager
