Harold Irving Ewen

Harold Irving Ewen
Born(1922-03-05)March 5, 1922
Chicopee, Massachusetts
DiedOctober 8, 2015(2015-10-08) (aged 93)
EducationPh.D. (1951)
Alma materHarvard University
Known forDetection of 21-cm hydrogen line
SpouseMary Ann Whitney[1]
ChildrenDonald, Bruce, Mark, Deborah, David, Daniel, and Rebecca[1]
Parents
  • S. Arthur Ewen[2] (father)
  • Ruth F. Fay[2] (mother)
AwardsIEEE Morris E. Leeds Award (1970)
Beatrice M. Tinsley Prize (1988)
Scientific career
ThesisRadiation from Galactic Hydrogen at 1420 Megacycles per Second (1951)
Doctoral advisorEdward M. Purcell
Plaque commemorating the discovery of 21-cm radiation from the Milky Way

Harold Irving "Doc" Ewen (March 5, 1922 – October 8, 2015) was an American physicist, radio astronomer, and business executive. He served in the United States Navy in World War II as a second lieutenant. As a graduate student under Edward M. Purcell, he was the first to detect the galactic 21-cm hydrogen line.

  1. ^ a b Cite error: The named reference Daniel was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Amherst_1951 was invoked but never defined (see the help page).