Today (November 2, 1906) is the birthday of Bengt Edlen, who discovered that the spectra of the sun (corona) are formed by multiple iron electrons (Fe-XIV).
Bengt Edlen was born on November
2, 1906, in Kusum, Sweden. He graduated from high school in Norcopping in 1926.
Entered Uppsala University in the same year. After three semesters he was
awarded a bachelor’s degree. He received his Ph.D. in 1934 with his dissertation
on the spectrum and energy of the elements at the beginning of the period. He
gained international fame after discovering unidentified spectral lines in the
Sun's spectrum. It is speculated to have originated from a hitherto
unidentified chemical called coronium.
He rejected previous assumptions that the sun's spectra came from the unknown chemical coronium and clarified that they were formed by multiple iron electrons (Fe-XIV). His discovery was not immediately accepted, as ionization requires temperatures in the millions of degrees. Such solar corona temperatures were then checked. He also played an important role in analyzing the spectra of Wolf-Royd stars.
Edlan was a professor at the
University of Lund from 1944 to 1973. He was elected a member of the Swedish
Academy of Sciences in 1947. Edlan Wolf-Ray has made excellent contributions by
analyzing the radiographs of galaxies. Bengd Edlen received the Swedish
Government Astronomical Medal of Medal in 1945 for solving a solar puzzle. In
1946, Overd. Potsu won the medal. He also received the Draper Medal in 1968
from the National Academy of Sciences. Pengith Edlene passed away on February
10, 1993, at the age of 86, in Lund, Sweden, after discovering that the sun's
spectra were formed by multiple iron electrons (Fe-XIV).
Source By: Wikipedia
Information: Ramesh, Assistant
Professor of Physics, Nehru Memorial College, Puthanampatti, Trichy.
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