Hostname: page-component-848d4c4894-mwx4w Total loading time: 0 Render date: 2024-06-30T22:02:26.959Z Has data issue: false hasContentIssue false

Physical Properties of Interplanetary Grains

Published online by Cambridge University Press:  12 April 2016

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

This paper presents physical properties of interplanetary dust determined by in-situ techniques. It is probable that, like millimeter-sized meteoroids (Jacchia, et al. 1967), most interplanetary dust is cometary matter. Although a cometary origin for interplanetary dust is widely accepted (Whipple 1967) (Millman, 1972) there is currently no unambiguous proof of this hypothesis. The results presented here must be interpreted accordingly. It must also be remembered that even if interplanetary particles are cometary, they might possibly be altered in the interplanetary medium by collisions and by thermal effects during close perihelion passages, so the dust particles may not be representative of unaltered cometary material.

Type
Part II
Copyright
Copyright © NASA 1976

References

Anders, E., Ganapathy, R., Kräherbühl, U., and Morgan, J.W. 1973, Meteoritic Material on the Moon, The Moon, 8, 3.Google Scholar
Blanchard, M.B., and Cunningham, G.G. 1974, Meteor Ablation Studies: Olivine, J. Geophys. Res., 79,3973.CrossRefGoogle Scholar
Brownlee, D.E., Hodge, P.W. and Bucher, W. 1973, The Physical Nature of Interplanetary Dust as Inferred by Particles Collected at 35 km, in Evolutionary and Physical Properties of Meteoroids, IAU Colloquium 13., ed., Hemenway, C.L., Millman, P.M. and Cook, A.F., (NASA SP-319), p. 291.Google Scholar
Brownlee, D.E., Horz, F., Vedder, J.F., Gault, D.E. and Hartung, J.B. 1973, Some physical properties of micrometeoroids, Proc. Fourth Lunar Sci. Conf., Geochim. Cosmochim. Acta, Suppl. 4, Vol. 3, 3197.Google Scholar
Brownlee, D.E., Tomandl, D.A., Hodge, P.W., and Horz, F. 1975, Elemental abundances in interplanetary dust, Nature, (in press).CrossRefGoogle Scholar
Fechtig, H., Gentner, W., Hartung, J.B., Nagel, K., Neukum, G., Schneider, E., and Storzer, D. 1975, Microcraters on Lunar Samples, Proc. of the Soviet-American Conference on Cosmochemistry of the Moon and the Planets, in press.Google Scholar
Goldberg, R.A. and Aikin, A.C. 1973, Comet Enche: meteor metallic ion identification by mass spectrometer, Science, 180, 294.CrossRefGoogle Scholar
Hartung, J.B., Horz, F., and Gault, D.E. 1972, Lunar microcraters and interplanetary dust, Proc. Third Lunar Sci. Conf., Geochim. Cosmochim. Acta, Suppl. 3, Vol. 3, (MIT Press), 2735.Google Scholar
Harvey, G.A. 1973, Elemental abundance for meteors by spectroscopy, J. Geophys. Res., 78, 3913.CrossRefGoogle Scholar
Horz, F., Brownlee, D.E., Fechcig, H., Hartung, J.B., Morrison, D.A., Neukum, G., Schneider, E., and Vedder, J.F. 1975, Lunar Microcraters, implications for the micrometeoroid complex, Planet. Space Sci., in press. 980 CrossRefGoogle Scholar
Jacchia, L.G., Verninani, F., and Briggs, R.E. 1967, An analysis of the atmospheric trajectories of 413 precisely reduced photographic meteors, Smithsonian Contr. to Astrophysics, 10.Google Scholar
Mason, B. 1971, Handbook of elemental Abundances in Meteorites, (Gordon and Breach, New York).Google Scholar
Millman, P.M. 1972, Cometary meteoroids, in Nobel Symposium 21: From Plasma to planet, ed. Elvius, A., (Wiley) p. 157.Google Scholar
Smith, D., Adams, N.G., and Khan, H.A. 1974, Flux and composition of micrometeoroids in the diameter range 1-10μm. Nature, 252, 101.Google Scholar
Vedder, J.F. and Mandeville, J.-C. 1974, Microcraters formed in glass by projectiles of various densities, J. Geophys. Res., 79, 3247.Google Scholar
Whipple, F.L. 1951, The theory of micrometeorites, Part II: In a hetrothermal atmosphere, Proc. Nat. Acad. Sci., 37, 19.Google Scholar
Whipple, F.L. 1967, On maintaining the meteoritic complex, in The Zodiacal Light and Interplanetary Medium, ed. Weinberg, J.L., NASA SP-150.Google Scholar