Composition of comet Halley dust particles from Vega observations - Archive ouverte HAL Access content directly
Journal Articles Nature Year : 1986

Composition of comet Halley dust particles from Vega observations

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Jean-Loup Bertaux
F. Krueger
  • Function : Author

Abstract

The dust impact mass analyser (PUMA) carried by the spacecraft Vega 1 and Vega 2 has provided the first direct measurements of the physical and chemical properties of cometary dust. Particles of mass <10−14 g are much more abundant than was predicted by models1. Most of the particles are rich in light elements such as H, C, N and O, lending support to models that describe cometary material as consisting of radiation-processed ices. Three examples of mass spectra for typical particle compositions are shown.

Dates and versions

insu-03584839 , version 1 (22-02-2022)

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Cite

J. Kissel, R. Z. Sagdeev, Jean-Loup Bertaux, V. N. Angarov, J. Audouze, et al.. Composition of comet Halley dust particles from Vega observations. Nature, 1986, 321 (S6067), pp.280-282. ⟨10.1038/321280a0⟩. ⟨insu-03584839⟩
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