Anders Jonas Ångström

Anders Jonas Ångström ( pronunciation: [ ˌ ː to ː dəʂ ɔŋ stɾœm ]; born August 13, 1814 Lögdö bruk, community Timrå, † June 21, 1874 in Uppsala ) was a Swedish astronomer and physicist and co-founder of Astro spectroscopy.

Ångström studied at Uppsala University mathematics and physics. In 1839 he received his doctorate and taught physics at the university from 1858 until his death as professor. From 1867 Angstroms worked as secretary of the Royal Swedish Academy of Sciences in Uppsala.

In his research focused on the investigation of the solar spectrum in the foreground. In 1862 he rendered in this context, the detection of hydrogen spectral lines. He also noted the presence of other elements in the solar spectrum and published in 1868 an atlas with spectral lines of the Sun (research sur les specters solaires, Uppsala ).

After the Ångström length unit Ångström was named. Today, it is mainly used in the solid-state, semiconductor and atomic physics as well as in crystallography and generally in chemistry, because the lengths occurring there often be a few angstroms.

Today, a building of the Uppsala University bears his name ( Ångströmlaboratoriet ). In addition, the lunar crater named after angstrom angstrom.