Results 61 to 70 of about 4,947 (146)
Dynamical evidence regarding the relationship between asteroids and meteorites [PDF]
Meteorites are fragments of small solar system bodies transferring into the vicinity of earth from the inner edge of the asteroid belt. Photometric measurements support an association between Apollo objects and chondritic meteorites.
Wetherill, G. W.
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Current evolution of meteoroids [PDF]
The observed mass distribution of meteoroids at 1 AU from the sun is briefly reviewed in a survey that ranges over the bulk of the mass spectrum from micrometeoroids to meteorite parent objects.
Dohnanyi, J. S.
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A working list of meteor streams [PDF]
The list is restricted to meteor streams that do exist; included are six streams with activity near the threshold of detection by photography not related to any known comet and not shown to be active for as long as a ...
Cook, A. F.
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Mass Loss Due to Sputtering and Thermal Processes in Meteoroid Ablation
, 2005 Conventional meteoroid theory assumes that the dominant mode of ablation is by evaporation following intense heating during atmospheric flight. In this paper we consider the question of whether sputtering may provide an alternative disintegration process
Adolfsson +45 more
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NASA-LRC faint meteor spectra [PDF]
A brief description is given of the instrumentation, the facilities, and the patrol technique used by the NASA faint meteor spectra patrol. A classification of 500 meteor spectra obtained in the first 2-1/2 years of the patrol is reported.
Harvey, G. A.
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Experiments to prove continuing microbial ingress from Space to Earth. [PDF]
Adv Genet, 2020 Wickramasinghe NC +7 more
europepmc +1 more source
The auroral green line in Perseid spectra near sunspot maximum [PDF]
Thirty-one spectra photographed during the Perseid showers of 1969 and 1970 are found to exhibit greater ionization and stronger, more frequent appearance of the forbidden oxygen line at 5577 A than Perseid spectra obtained with the same instrument in ...
Russell, J. A.
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A preliminary analysis of the Shangri-La Bolide on 2017 Oct 4
Earth and Planetary Physics, 2018 Quan-Zhi Ye
doaj +1 more source