This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Ralph Alpher" – news · newspapers · books · scholar · JSTOR(August 2007) (Learn how and when to remove this message)
Ralph Alpher
Alpher in 1950
Born
Ralph Asher Alpher
(1921-02-03)February 3, 1921
Washington, D.C., U.S.
Died
August 12, 2007(2007-08-12) (aged 86)
Austin, Texas, U.S.
Nationality
American
Alma mater
George Washington University
Known for
First modern physical theory of nucleosynthesis and prediction of the Cosmic Microwave Background Radiation in 1948.
Awards
Magellanic Premium (1975) Henry Draper Medal (1993) National Medal of Science (2005)
Scientific career
Fields
Cosmology, Theoretical Physics and Astrophysics
Institutions
Johns Hopkins University Applied Physics Laboratory, General Electric Research and Development Center, Union College, Dudley Observatory
Doctoral advisor
Georg Antonovich Gamow
Part of a series on
Physical cosmology
Big Bang · Universe
Age of the universe
Chronology of the universe
Early universe
Inflation · Nucleosynthesis
Backgrounds
Gravitational wave (GWB)
Microwave (CMB) · Neutrino (CNB)
Expansion · Future
Hubble's law · Redshift
Expansion of the universe
FLRW metric · Friedmann equations
Inhomogeneous cosmology
Future of an expanding universe
Ultimate fate of the universe
Components · Structure
Components
Lambda-CDM model
Dark energy · Dark matter
Structure
Shape of the universe
Galaxy filament · Galaxy formation
Large quasar group
Large-scale structure
Reionization · Structure formation
Experiments
Black Hole Initiative (BHI)
BOOMERanG
Cosmic Background Explorer (COBE)
Dark Energy Survey
Planck space observatory
Sloan Digital Sky Survey (SDSS)
2dF Galaxy Redshift Survey ("2dF")
Wilkinson Microwave Anisotropy Probe (WMAP)
Scientists
Aaronson
Alfvén
Alpher
Copernicus
de Sitter
Dicke
Ehlers
Einstein
Ellis
Friedmann
Galileo
Gamow
Guth
Hawking
Hubble
Huygens
Kepler
Lemaître
Mather
Newton
Penrose
Penzias
Rubin
Schmidt
Smoot
Suntzeff
Sunyaev
Tolman
Wilson
Zeldovich
List of cosmologists
Subject history
Discovery of cosmic microwave background radiation
History of the Big Bang theory
Timeline of cosmological theories
Category
Astronomy portal
v
t
e
Ralph Asher Alpher (February 3, 1921 – August 12, 2007) was an American cosmologist, who carried out pioneering work in the early 1950s on the Big Bang model, including Big Bang nucleosynthesis and predictions of the cosmic microwave background radiation.
Ralph Asher Alpher (February 3, 1921 – August 12, 2007) was an American cosmologist, who carried out pioneering work in the early 1950s on the Big Bang...
Gamow, his student RalphAlpher, and their associates in the late 1940s, having resuscitated it from Middle English after Alpher found it in Webster's...
February 13, 1997) was an American astronomer, best known for his work with RalphAlpher in 1948–50, on estimating the temperature of cosmic microwave background...
estimates a temperature of 50 K. 1948: RalphAlpher and Robert Herman re-estimate Gamow's estimate at 5 K. 1949: RalphAlpher and Robert Herman re-re-estimate...
predicted in 1948 by RalphAlpher and Robert Herman, in a correction they prepared for a paper by Alpher's PhD advisor George Gamow. Alpher and Herman were...
graduate student RalphAlpher the task of solving the equations numerically. These results of Gamow and Alpher appeared in 1948 as the Alpher–Bethe–Gamow paper...
In the late 1940s, George Gamow's assistant cosmological researcher RalphAlpher, proposed the name ylem for the primordial substance that existed between...
developed by George Gamow, who introduced BBN and whose associates, RalphAlpher and Robert Herman, predicted the CMB. Ironically, it was Hoyle who coined...
estimate an intergalactic temperature of 2.8 K in 1933. American physicists RalphAlpher and Robert Herman predicted 5 K for the temperature of space in 1948...
nucleosynthesis began with the calculations of RalphAlpher in the 1940s. Alpher published the Alpher–Bethe–Gamow paper that outlined the theory of light-element...
formulation of the Big Bang theory by Georges Lemaître. George Gamow, RalphAlpher, and Robert Herman had calculated that there should be evidence for a...
Essential Theatre Prize in 2000 and 2004. Background, about physicist RalphAlpher, was published by Isotope: A Literary Journal of Nature and Science Writing...
another man.: 107 The name of the story is likely derived from that of RalphAlpher, who himself was convinced of the connection. The ancient computer in...
Humanist Association. RalphAlpher: American cosmologist. He is famous for the seminal paper on Big Bang nucleosynthesis called the Alpher–Bethe–Gamow paper...
model for the continued gravitational contraction of a star. 1948 – RalphAlpher and Robert Herman predict the cosmic microwave background. 1949 – Cornelius...
constant may be small because it is decreasing slowly with time. 1948 – RalphAlpher, Hans Bethe ("in absentia"), and George Gamow examine element synthesis...
in 2000. Researchers at GE Global Research include:[citation needed] RalphAlpher, cosmologist William David Coolidge, physicist Ivar Giaever, Nobel Laureate...
helped establish the Big Bang theory, the scientists Robert Herman and RalphAlpher had also worked on that field. In quantum mechanics Jewish role was significant...
in 1948 by George Gamow and RalphAlpher, and by Alpher and Robert Herman as due to the hot Big Bang model. Moreover, Alpher and Herman were able to estimate...
over the award for a serendipitous discovery since it did not include RalphAlpher and Robert Herman, who predicted the cosmic microwave background radiation...
including Georges Lemaître, who first theorised that there was a big bang, RalphAlpher, who stated that the light from this should be detectable, and Cecilia...
asterisk (*). RalphAlpher (agnostic/humanist) – American cosmologist; known for the seminal paper on Big Bang nucleosynthesis, the Alpher–Bethe–Gamow paper...
work in the field of sustainable built environment and climate actions RalphAlpher, "Father of the Big Bang theory" Anousheh Ansari (M.S., 1992), chairwoman...
as Alfvén waves RalphAlpher (1921–2007): American cosmologist; known for the seminal paper on Big Bang nucleosynthesis, the Alpher–Bethe–Gamow paper...
W. Cronin, Val Fitch 1978 William Klemperer 1979 Elias Burstein 1980 RalphAlpher, Robert Herman 1981 Frank F. Fang, Alan B. Fowler, Webster E. Howard...