Science
Gustaf Strömberg
Astronomical data compiler and numerical collaborator
Photograph · Image credit
Who they are
Gustaf Strömberg assembled radial-velocity data used in Lemaître’s 1927 expansion analysis. Hubble separately acknowledged his numerical checking in the 1929 distance–velocity paper. The two roles make visible different kinds of supporting work behind cosmological results: compiling observations and checking an analysis are not the same contribution.
He connects the data and collaborative calculations behind early expansion studies.
Selected contributions
Primary records
Academic paper · 1929
A Relation between Distance and Radial Velocity among Extra-Galactic Nebulae
Hubble compares estimated distances with radial velocities and reports an approximate linear relation for a limited sample. The paper acknowledges antecedent data and numerical assistance; its distance scale was preliminary.
Reading scope & citation
Reuses documented prior inspection: Supporting text and table headings inspected; individual measurements and fitted uncertainties not independently recomputed. Reused prior inspected evidence: Supporting text and table headings inspected; individual measurements and fitted uncertainties not independently recomputed.
In the timeline
Biography sources & portrait credit
- Editorial note on Lemaître’s 1927 expanding-universe paper ↗Original Annales de la Société scientifique de Bruxelles; General Relativity and Gravitation editorial note on arXiv
- A Relation between Distance and Radial Velocity among Extra-Galactic Nebulae ↗Proceedings of the National Academy of Sciences 15, 168–173; scan hosted by University of Sheffield
Portrait credit
Ervin Willard Spurr (1865 - 14 February 1938). 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) ↗
