Today (April 5, 1935) is the birthday of the English astronomer Donald Lynden-Bell, known for his theory that the Milky Way galaxy has massive black holes at its centre.
Donald Lynden-Bell was born on
April 5, 1935, in Dover. Educated at the University of Cambridge, he co-authored
a dissertation in 1962 with Olin Egan and Alan Change. In it, he says that our
Milky Way galaxy has undergone a giant gas muzzle crater. In 1969 he published
the theory that the masses of massive black holes are energized by matter. He
theorized that most of the massive Milky Way galaxies had black holes at their
centres, counting the extinct quasars. His wife was Truth Lynden Bell,
professor of chemistry at Cambridge.
He is best known for the theory
that galaxies have massive black holes in their centre. These black holes are
the primary source of energy for quasars. He is the recipient of the Morton
Sukimidu Prize. He received the Cowley Prize for Astronomy in 2008. He has been
the President of the State Astronomical Society. Most recently he worked at the
Cambridge Astronomical Institute. He was also the first director of the
company.
He was one of a group of seven
samurai astronomers. Other astronomers in the group include Chandra Faber,
David Pursudine, Alan Trecier, Roger Davies, Uropoto Terlevich, and Gary
Wagner. They are the authors of the theory that there is a huge attraction.
Giant gravity is the largest scattering area. It is 250 million light-years
away. This gravity is responsible for the motion of the field galaxy clusters.
Eddington Medal (1984),
Government Astronomical Society Gold Medal (1993), American Astronomical
Society's Dialectical Astronomy Division Brower Award (1991), Carl
Schwarzschild's Medal (1983), National Academy of Sciences' John J. Carty Award
(2000), Bruce Medal ( 1998), and has won medals such as the Norris Russell
Lecture (2000) and the Cowley Prize for Astronomy (2008). Asteroid 18235 is
named after Lynden-Bell.
Source By: Wikipedia
Information: Dr. P. Ramesh, Assistant
Professor of Physics, Nehru Memorial College, Puthanampatti.
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