Peebles and Bharat Ratra study a slowly evolving scalar field whose energy density changes with cosmic time, providing an influential precursor to dynamical dark energy models.
Historical person
James Edwin Peebles Biography
Historical biography and chronological timeline for James Edwin Peebles, based on 3 World History Database records associated with Canada.
Chronological biography
1988
1993
Peebles develops observational arguments for a low-matter universe containing a cosmological constant, helping establish Lambda cosmology before the supernova discovery of acceleration.
2003
Peebles reviews the emerging evidence for an accelerating universe and the theoretical challenge posed by a dominant smooth dark-energy component.
Titles and roles
Cosmologist
Record provenance
This biography is assembled from World History Database records filtered by country and personal-name fields. Exact duplicate display records are removed. The database is an index rather than a complete narrative biography; formal research should verify entries against relevant primary or specialist sources.