What changed
Worked out nuclear reaction cycles, especially the catalytic carbon-nitrogen route, under stellar conditions.
Scientific scope
The record is Bethe's sole-author March 1939 Physical Review paper at page 434. It is distinct from his shorter January note at page 103, earlier proton-proton work with Critchfield, and later comprehensive stellar-nucleosynthesis accounts.
Evidence
The linked sources identify this contribution and its scope. WRS has not independently reconstructed the scientific claims. The record is Bethe's sole-author March 1939 Physical Review paper at page 434. It is distinct from his shorter January note at page 103, earlier proton-proton work with Critchfield, and later comprehensive stellar-nucleosynthesis accounts.
Contributors
- H. A. Bethe · SCIENCE: Named source author of the scoped work; individual effort shares are not measured.
Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.
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