In Situ Measurements of Interstellar Dust

Details In Situ Measurements of Interstellar Dust In Situ Measurements of Interstellar Dust

1997-11-17

arxiv.org/abs/astro-ph/9711190v1

Astronomy and Astrophysics

Astrophysics

4 pages and two figures

Scientific paper

10.1007/BFb0104750

We present the mass distribution of interstellar grains measured in situ by the Galileo and Ulysses spaceprobes as cumulative flux. The derived in situ mass distribution per logarithmic size interval is compared to the distribution determined by fitting extinction measurements. Large grains measured in situ contribute significantly to the overall mass of dust in the local interstellar cloud. The problem of a dust-to-gas mass ratio that contradicts cosmic abundances is discussed.

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