Who they are
Edward Arthur Milne was a mathematician and astrophysicist who studied how radiation passes through stellar atmospheres. Working with Ralph Fowler, he investigated absorption lines in stellar spectra. Cecilia Payne’s 1925 analysis drew on this theoretical background to connect observed spectra with physical conditions and composition in stars.
He represents the theoretical work behind the timeline’s stellar-composition milestone.
Selected contributions
- Developed stellar-atmosphere theory and collaborated with Fowler on spectral absorption lines.Source ↗
- Contributed theoretical antecedents used in Payne’s Stellar Atmospheres.Source ↗Source 2 ↗
Selected works
Academic paper · 1923 · Published journal article
The Intensities of Absorption Lines in Stellar Spectra, and the Temperatures and Pressures in the Reversing Layers of Stars.: (Plates 15, 16.)
Fowler and E. A. Milne connect the strength of stellar absorption lines with temperatures and pressures in stellar atmospheres. The paper belongs to the theoretical groundwork Cecilia Payne later used to interpret stellar spectra.
Reading scope & citation
Publisher record: exact title, two authors, publication date, volume, pages and DOI. Publisher metadata only; the PDF was not read.
DOI: 10.1093/mnras/83.7.403
Selected reading about this person
Book · 1925
Stellar Atmospheres: A Contribution to the Observational Study of High Temperature in the Reversing Layers of Stars
Payne uses stellar spectra and ionization theory to investigate stellar atmospheres and element abundances. Her text derives unusually large hydrogen and helium values while explicitly qualifying them, preserving the historical reasoning rather than only the later conclusion.
Original Harvard Observatory monograph, published under Cecilia H. Payne; linked Project Gutenberg transcription is later.
Reading scope & citation
Fresh abundance discussion and prior inspected thesis passages; full monograph not read in this pass. Reuses documented prior inspection: Selected transcribed passages read; entire book and original scan not visually audited. Gutenberg release is 2024; cited publication is the 1925 original.
In the timeline
Biography sources & portrait credit
- Stellar Atmospheres: A Contribution to the Observational Study of High Temperature in the Reversing Layers of Stars ↗Harvard Observatory; Project Gutenberg transcription of original book
- Education and Doctoral Thesis ↗Center for Astrophysics | Harvard & Smithsonian
- Edward Arthur Milne ↗MacTutor History of Mathematics, University of St Andrews
Portrait credit
Unknown photographer. Public domain (Commons file-specific copyright declaration). Via Wikimedia Commons.
Photograph. Cropped to 4:5, resized to 320 × 400 and converted to WebP.
Image source & identification ↗ · Public domain (Commons file-specific copyright declaration) ↗
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