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Story of the mysterious spectral lines of Zeta Puppis, a star that seemed to challenge the atomic model proposed by Niels Bohr. Bohr cleverly solved the issue and turned the observation that nearly dismantled his revolutionary model into a successful prediction.
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∘ D. Sobel , "The Glass Universe: How the Ladies of the Harvard Observatory Took the Measure of the Stars" amzn.to/3WgS80y
[References]
∘ N. Bohr, On the constitution of atoms and molecules, London Edinburgh Philos. Mag. & J. Sci. 26, 151: 1 (1913) archive.org/de...
∘ N. Bohr, On the constitution of atoms and molecules (part 2), London Edinburgh Philos. Mag. & J. Sci. 26, 476 (1913) archive.org/de...
∘ E. C. Pickering, Stars Having Peculiar Spectra. New Variable Stars in Crux and Cygnus, Harvard College Observatory Circ.12, 1 (1896) ui.adsabs.harv...
∘ E. C. Pickering, The spectrum of zeta Puppis, ApJ 5, 92 (1897) ui.adsabs.harv...
∘ A. Fowler, Observations of the Principal and other Series of Lines in the Spectrum of Hydrogen, MNRAS 73, 2, 62 (1912) doi.org/10.109...
∘ A. Fowler,Nature 92, 232 (1913) www.nature.com...
[Credits]
Niels Bohr, public domain
Emission spectrum, by Almuazi under CC BY-SA 4.0
Constellation Puppis, by Bronger under CC BY-SA 3.0
Zeta Puppis, Second Digitized Sky Survey (DSS2), NASA/ESA under CC BY 4.0
Henry Draper, by W.R. Howell, public domain
Henry Draper's telescope, National Museum of American History, public domain
Orion nebula, by R. Hess www.astrofotog..., free use
Spectrum of Jupiter, NIST, public domain
Jupiter, NASA's Cassini spacecraft, public domain
Harvard College Observatory c.1899, public domain
E.C. Pickering, Library of Congress, public domain
Women computers at the Harvard College Observatory c.1890, public domain
Williamina Fleming, Harvard College Observatory, public domain
Horsehead nebula, by SebusMaximus under CC BY-SA 4.0
Photography of the constellation Puppis, by T. Credner under CC BY-SA 3.0
Annie Jump Cannon, by Smithsonian Institution
Louisa D. Wells, Harvard University Archives
Henrietta S. Leavitt, by M.Harwood, public domain
Edwin Hubble, by NASA/ESA, under CC BY 2.0
Alfred Fowler, by US Library of Congress, public domain
Spectral lines, by Sassospicco/Jhausauer, public domain
Ernest Rutherford, public domain
Zeeman Effect equipment, by N. Bashmakova under CC BY-SA 4.0
Zeeman doublet photograph, Popular Science Monthly, public domain
First Solvay Conference 1911, by Benjamin Couprie, public domain
AIP: American Institute of Physics, Emilio Segrè Visual Archives
CC BY 2.0: creativecommon...
CC BY 4.0: creativecommon...
CC BY-SA 3.0: creativecommon...
CC BY-SA 4.0: creativecommon...
Негізгі бет This star almost broke Bohr's atomic model
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