The Composition of the Cosmos
The Revolution of Cecilia Payne-Gaposchkin and the Thermodynamics of Stellar Atmospheres
DOI:
https://doi.org/10.13102/sscf.v22i.13033Keywords:
Cecilia Payne-Gaposchkin, stellar composition, history of science, spectroscopyAbstract
Cecilia Payne-Gaposchkin's 1925 doctoral thesis fundamentally redefined the chemical composition of the universe, marking the consolidation of modern astrophysics. This study reconstructs the thermodynamic and statistical foundations that allowed her to identify hydrogen and helium as the dominant stellar elements, overturning the prevailing assumption that stars mirrored Earth's crust. By applying the Boltzmann excitation and Saha ionization equations to Harvard College Observatory spectroscopic data, the analysis demonstrates that spectral line intensity depends on temperature and accessible quantum states rather than raw elemental concentration. The article also contextualizes the academic resistance Payne faced, the subsequent validation of her methods by Henry Norris Russell, and the historiographical significance of this episode. Integrating physics, history, and philosophy, the work positions Payne's trajectory as a didactic tool for illustrating how mathematical rigor and analytical persistence overcome entrenched scientific consensus and institutional barriers.
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A. Comte, Cours de Philosophie Positive. 1st Edition. Paris: Bachelier (1835).
L. Boltzmann, Weitere Studien über das Wärmegleichgewicht unter Gasmolekülen. Sitzungsber. Akad. Wiss. 66, 275 (1872).
M.N. Saha, On a Physical Theory of Stellar Spectra. Proc. R. Soc. London, Ser. A 99, (697) 135 (1921).
C.H. Payne, Stellar Atmospheres: A Contribution to the Observational Study of High Temperature in the Reversing Layers of Stars. PhD Thesis (Harvard). Cambridge: Harvard University Press (1925).
Y. Chevallard, La transposition didactique: du savoir savant au savoir enseigné. Grenoble: La Pensée Sauvage (1985).
C.H. Payne-Gaposchkin, The Dyer's Hand: An Autobiography. Private Edition (1979).
F.W. Dyson, A.S. Eddington, C. Davidson, A Determination of the Deflection of Light by the Sun's Gravitational Field, from Observations Made at the Total Eclipse of May 29, 1919. Philos. Trans. R. Soc. London, Ser. A 220, 291 (1920).
P.A. Wayman, Cecilia Payne-Gaposchkin: Astronomer Extraordinaire. Astron. Geophys. 43, (1) 1.27 (2002).
S.L. Boyd, Portrait of a Binary: The Lives of Cecilia Payne and Sergei Gaposchkin. Rockland: Penobscot Press (2014).
D. Sobel, The Glass Universe: How the Ladies of the Harvard Observatory Took the Measure of the Stars. New York: Viking (2016).
D.H. Devorkin, Cecilia Payne-Gaposchkin and the Development of the Theory of Stellar Atmospheres. J. Astron. Hist. Herit. 13, (2) 139 (2010).
A.J. Cannon, E.C. Pickering, The Henry Draper Catalogue. Ann. Astron. Obs. Harv. Coll. 91-99, 1918-1924.
B.W. Carroll, D.A. Ostlie, An Introduction to Modern Astrophysics. 2nd Edition. Cambridge: Cambridge University Press (2017).
P. Janssen, Indication de quelques-uns des résultats obtenus à Guntoor, pendant l'éclipse du mois d'août dernier, et à la suite de cette éclipse. C. R. Acad. Sci. 67, 838 (1868).
B.B. Nath, The Story of Helium and the Birth of Astrophysics. New York: Springer (2013).
R.H. Fowler, E.A. Milne, The intensities of absorption lines in stellar spectra, and the temperatures and pressures in the reversing layers of stars. Mon. Not. R. Astron. Soc. 83, 403 (1923).
D. Mihalas, Stellar Atmospheres. 2nd Edition. San Francisco: W.H. Freeman and Company (1978).
N. Bohr, On the Constitution of Atoms and Molecules. Philos. Mag. 26, 1 (1913).
M. Planck, Zur Theorie des Gesetzes der Energieverteilung im Normalspektrum. Verh. Dtsch. Phys. Ges. 2, 237 (1900).
A. Einstein, Über einen die Erzeugung und Verwandlung des Lichtes betreffenden heuristischen Gesichtspunkt. Ann. Phys. 322, (6) 132 (1905).
J.J. Balmer, Notiz über die Spectrallinien des Wasserstoffs. Ann. Phys. 261, (5) 80 (1885).
T. Lyman, The Spectrum of Hydrogen in the Region of Extremely Short Wave-Lengths. Astrophys. J. 23, 181 (1906).
P.C. Vieira, N.T. Massoni, A. Alves-Brito, O papel de Cecilia Payne na determinação da composição estelar. Rev. Bras. Ens. Fis. 43, e20210028 (2021).
M.N. Saha, Ionisation in the Solar Chromosphere. Philos. Mag., Ser. 6 40, (238) 472 (1920).
E. Böhm-Vitense, Introduction to Stellar Astrophysics: Volume 2, Stellar Atmospheres. Cambridge: Cambridge University Press (1989).
W. Pauli, Über den Zusammenhang des Abschlusses der Elektronengruppen im Atom mit der Komplexstruktur der Spektren. Z. Phys. 31, 765 (1925).
E. Fermi, Sulla quantizzazione del gas perfetto monoatomico. Rend. Lincei 3, 145 (1926).
P.A.M. Dirac, On the Theory of Quantum Mechanics. Proc. R. Soc. London, Ser. A 112, (762) 661 (1926).
H.B. Callen, Thermodynamics and an Introduction to Thermostatistics. 2nd Edition. New York: John Wiley & Sons (1985).
L. de Broglie, Recherches sur la théorie des quanta}. Thése (Doctorat en Physique). Faculté des Sciences de l'Université de Paris, Paris (1924).
J.H. van 't Hoff, Études de dynamique chimique. Amsterdam: Frederik Muller & Co. (1884).
W. Nernst, Über die Berechnung chemischer Gleichgewichte aus thermodynamischen Messungen. Nachr. Ges. Wiss. Göttingen 1906, 1 (1906).
D.F. Gray, The Observation and Analysis of Stellar Photospheres. 3rd Edition. Cambridge: Cambridge University Press (2005).
R. Wildt, Negative ions of hydrogen and the opacity of stellar atmospheres. Astrophys. J. 90, 611 (1939).
M. Minnaert, Die theoretische Intensitätsverteilung in den äusseren Flügeln der Fraunhoferlinien. Z. Astrophys. 12, 313 (1936).
A. Maeder, P.S. Conti, Massive Star Populations in Galaxies. Annu. Rev. Astron. Astrophys. 32, 227 (1994).
J.I. Castor, D.C. Abbott, R.I. Klein, Radiation-driven winds in Of stars. Astrophys. J. 195, 157 (1975).
L.F. Smith, M.M. Shara, A.F.J. Moffat, A three-dimensional classification for WN stars. Mon. Not. R. Astron. Soc. 281, 163 (1996).
P.A. Crowther, O. De Marco, M.J. Barlow, Revised optical spectral classification of WC and WO Wolf-Rayet stars. Mon. Not. R. Astron. Soc. 296, (2) 367 (1998).
I.F. Fernandes, R. de Carvalho, T. Contini, R.R. Gal, Massive star populations in Wolf-Rayet galaxies. Mon. Not. R. Astron. Soc. 355, (3) 728 (2004).
D. Schaerer, W.D. Vacca, New models for Wolf-Rayet and O star populations in young starbursts. Astrophys. J. 497, 618-644 (1998).
P.A. Crowther, Physical Properties of Wolf-Rayet Stars. Annu. Rev. Astron. Astrophys. 45, 177-219 (2007).
D.D. Clayton, Principles of Stellar Evolution and Nucleosynthesis. Chicago: University of Chicago Press (1983).
R. Kippenhahn, A. Weigert, A. Weiss, Stellar Structure and Evolution. 2nd Edition. Berlin: Springer (2012).
C. Iliadis, Nuclear Physics of Stars. 2nd Edition. Weinheim: Wiley-VCH (2015).
F. Hoyle, On Nuclear Reactions Occurring in Very Hot Stars. I. The Synthesis of Elements from Carbon to Nickel. Astrophys. J. Suppl. Ser. 1, 121 (1954).
P.S. Conti, Evolutionary processes in young massive stars. Mém. Soc. R. Sci. Liège 9, 193 (1976).
H.J.G.L.M. Lamers, J.P. Cassinelli, Introduction to Stellar Winds. Cambridge: Cambridge University Press (1999).
G. Lemaître, Un Univers homogène de masse constante et de rayon croissant rendant compte de la vitesse radiale des nébuleuses extra-galactiques. Ann. Soc. Sci. Brux. 47, 49 (1927).
E. Hubble, A relation between distance and radial velocity among extra-galactic nebulae. Proc. Natl. Acad. Sci. 15, (3) 168 (1929).
R.A. Alpher, H. Bethe, G. Gamow, The Origin of Chemical Elements. Phys. Rev. 73, (7) 803 (1948).
T.S. Kuhn, A Estrutura das Revoluções Científicas. Trad. B.V. Boeira, N. Boeira. 9th Edition. São Paulo: Perspectiva (2006).
H.N. Russell, On the Composition of the Sun's Atmosphere. Astrophys. J. 70, 11 (1929).
M.W. Rossiter, The Matthew Matilda Effect in Science. Soc. Stud. Sci. 23, (2) 325 (1993).
A. Pannekoek, Ionization in stellar atmospheres. Bull. Astron. Inst. Neth.1, (19) 107 (1922).
A. Unsöld, Über den Aufbau der Sternatmosphären. Z. Astrophys. 1, 1 (1930).
B. Kuklick, The Rise of American Philosophy: Cambridge, Massachusetts, 1860-1930. Yale University Press (1977).
O. Struve, V. Zebergs, Astronomy of the 20th Century. New York: Macmillan (1962).
Planck Collaboration, Planck 2018 results. VI. Cosmological parameters. Astron. Astrophys. 641, A6 (2020).
H.A. Bethe, Energy Production in Stars. Phys. Rev. 55, (5) 434 (1939).
G. Steigman, Primordial Nucleosynthesis: Successes and Challenges. Annu. Rev. Nucl. Part. Sci. 57, 463 (2007).
R.H. Cyburt, B.D. Fields, K.A. Olive, T.-H. Yeh, Big Bang Nucleosynthesis: Present Status. Rev. Mod. Phys. 88, 015004 (2016).
V.C. Rubin, W.K. Ford Jr., Rotation of the Andromeda Nebula from a Spectroscopic Survey of Emission Regions. Astrophys. J. 159, 379 (1970).
G. Bachelard, A Formação do Espírito Científico: contribuição para uma psicanálise do conhecimento. Rio de Janeiro: Contraponto (1996).
H.S. Leavitt, E.C. Pickering, Periods of 25 Variable Stars in the Small Magellanic Cloud. Harv. Coll. Obs. Circ. 173, 1 (1912).
C.H. Payne-Gaposchkin, Variable Stars and Galactic Structure. London: Athlone Press (1954).
M.R. Matthews, Science Teaching: The Contribution of History and Philosophy of Science. 2nd Edition. New York: Routledge (2014).
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