Carl Charlier

Carl Vilhelm Ludwig Charlier (1 April 1862 – 4 November 1934) was a Swedish astronomer. His parents were Emmerich Emanuel and Aurora Kristina (née Hollstein) Charlier.

Professor Carl Charlier in 1923.

Grave of Carl Charlier in Lund, Sweden.

Career

Charlier was born in Östersund. He received his Ph.D. from Uppsala University in 1887, later worked there and at the Stockholm Observatory and was Professor of Astronomy and Director of the Observatory at Lund University from 1897.

He made extensive statistical studies of the stars in our galaxy and their positions and motions, and tried to develop a model of the galaxy based on this. He proposed the siriometer as a unit of stellar distance.

Charlier was also interested in pure statistics and played a role in the development of statistics in Swedish academia. Several of his pupils became statisticians, working at universities and in government and companies.

Related to his work on galactic structure, he also developed a cosmological theory based on the work of Johann Heinrich Lambert. In the resulting Lambert-Charlier Hierarchical Cosmology, increasingly large areas of space contain decreasing densities of matter, the principle being introduced to avoid the observational inconsistency that would otherwise emerge from Olbers Paradox.

Late in his career, he translated Isaac Newton's Principia into Swedish. He died in Lund, aged 72.

James Craig Watson Medal (1924)
Bruce Medal (1933)

Named after him

Publications

Carl Ludwig Charlier: Die Mechanik des Himmels, 1902–1907, Leipzig: Veit, (2 volumes) (2nd edition in 1927)
Lectures on Stellar Statistics. Charlier. 1921

gollark: That has basically never worked because, weirdly enough, people don't seem to be good at dealing with complex long-term consequences when doing sex things.

gollark: Which I disagree with, yes.

gollark: If it became possible to grow babies externally or conveniently move them, that might be an acceptable solution too.

gollark: To rethingy: I think that, regardless of whose body or creation or whatever it is, the person who is actually carrying it and bears the associated issues of having it glued to their circulatory system and such should get to decide whether to keep doing that.

gollark: A fetus contains some of your genes but ~all of its materials come from what the mother eats/processes, so that isn't relevant either.

References

de Vaucouleurs, G.; et al. (September 1975). "The new Martian nomenclature of the International Astronomical Union". Icarus. 26 (1): 85–98. Bibcode:1975Icar...26...85D. doi:10.1016/0019-1035(75)90146-3.

MNRAS 95 (1935) 339

Bibliography

Gustav Holmberg, Reaching for the Stars: Studies in the History of Swedish Stellar and Nebular Astronomy, 1860-1940 (Lund, 1999)
Gustav Holmberg, "C.V.L. Charlier", in Hockey, Thomas (2009). The Biographical Encyclopedia of Astronomers. Springer Publishing. ISBN 978-0-387-31022-0. Retrieved August 22, 2012.

External links

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[deVaucouleurs1975-1] Vaucouleurs, G.; et al. (September 1975). "The new Martian nomenclature of the International Astronomical Union". Icarus. 26 (1): 85–98. Bibcode:1975Icar...26...85D. doi:10.1016/0019-1035(75)90146-3.