NATIONAL RADIO ASTRONOMY OBSERVATORY ARCHIVES
Finding Aid to the Papers of Alan H. Barrett, 1953-1987
See also the Papers of Woodruff T. Sullivan III, which include a 35 minute oral interview with Barrett conducted in 1971 and a 37 minute interview conducted in 1979, and Barrett's 1990 Jansky Lecture on Molecular Radio Astronomy: The Beginnings in the Records of National Radio Astronomy Observatory.
Location of collection: National Radio Astronomy Observatory, Archives, 520 Edgemont Rd., Charlottesville, VA. Phone: 1-434-296-0203, email: archivist at nrao.edu
Title and dates of the collection: Papers of Alan H. Barrett, 1953-1987
Size of the collection: 1.25 linear feet.
Papers/Records created by: Barrett, Alan H. (1927-1991)
Short description of collection: A small collection of Alan H. Barrett's papers, including chronological correspondence for 1962-1964, radio astronomy research materials from the 1950s through 1987, and a small group of photographs dated 1956 through ca. 1970.
Biography: Alan Hildreth Barrett was born in Springfield MA in 1927 and served in the U.S. Navy during World War II. He received a Bachelor of Science degree from Purdue University in 1950, then went on to Columbia University, where he did graduate work in physics under Charles Townes. He received his PhD in 1956 for a study of the microwave spectrum of the halides of indium and gallium. He was a post-doctoral fellow at the U.S. Naval Research Laboratory in 1956, where, with Edward Lilley, he made his first search for interstellar OH radicals. He was a research associate and instructor at University of Michigan from 1957-1961, and during that time made an extensive theoretical study of microwave radiation from the atmosphere of Venus. His proposed model of the Venus atmosphere and surface was confirmed by radiometric data from the Mariner II flyby mission to Venus, on which Barrett was the principle investigator, and he helped design microwave detection equipment carried on 1960-1963 Mariner missions.
In 1961 Barrett joined the Massachusetts Institute of Technology faculty as Associate Professor of Electrical Engineering, was appointed Professor of Electrical Engineering in 1965, and Professor of Physics in 1967. Much of his research at MIT was carried out in the Research Laboratory of Electronics. In 1963 Barrett and his collaborators detected, identified, and measured two 18-cm lambda-doublet lines from OH radicals in the interstellar medium, the first radio detection of molecular matter in interstellar space. The detection was a major milestone and opened the way for a new field of radio astronomy research on molecules in space. A later discovery by Barrett and colleagues that sources of OH emission were highly polarized was key evidence leading to their identification as cosmic masers.
Barrett helped develop very long baseline interferometry, and participated in the first VLBI measurements of OH radiation, thus confirming the maser hypothesis. He shared in the 1971 Rumford Prize from the American Academy of Arts and Sciences for this work. His research on molecular properties of the interstellar medium continued throughout his career.
Barrett received a Guggenheim Fellowship for study abroad in 1977-1978, was a von Humbolt Fellow in 1987, and was the Jansky Lecturer at National Radio Astronomy Observatory in 1990. He served on advisory and consulting committees to the National Aeronautics and Space Administration, the National Science Foundation, the National Institute of Health, the National Radio Astronomy Observatory, and the National Astronomy and Ionosphere Center. He was a Fellow of the American Academy of Arts and Sciences, and a member of the American Astronomical Society, the International Scientific Radio Union, and the International Astronomical Union.
Barrett retired from MIT in 1987. He died of cancer on July 3, 1991.
[Biographical note written by Ellen N. Bouton.]
Accession history: These papers from Barrett were kept by Paul Ho of Harvard-Smithsonian Center for Astrophysics, then passed on to James Moran, also at CfA, who donated them to the NRAO Archives in summer of 2015.
Access to collection: No restrictions. The Archives are open part-time; contact the Archivist for appointment.
Publication rights: Copyright has been assigned to The National Radio Astronomy Observatory. All requests for permission to publish or quote from manuscripts must be submitted in writing to the Archivist.
Preferred citation: National Radio Astronomy Observatory/Associated Universities, Inc. Archives, Papers of Alan H. Barrett, <series/unit/subunit/box #>. After the initial citation, abbreviations may be used: NRAO/AUI Archives, Barrett Papers, <series/unit/subunit/box #>.
Processing notes: Initial inventory of this collection was done in September 2015 by Ellen N. Bouton. Final arrangement, description, indexing, foldering and boxing of this material was begun in October 2015 and was completed in November 2015. During the processing, fasteners were removed and photocopies were made to replace thermofax sheets and newspaper clippings. Duplicates were discarded, with the exception of duplicate photos of the University of Michigan 85 foot telescope, which were sent to the University of Michigan Astronomy Department.