Spectra showing the Zeeman effect the splitting of lines in a magnetic field

Spectra showing the Zeeman effect the splitting of lines in a magnetic field. C9 Iron triplet A 6173 in spectra Sun-spots. a and b, plane polarized light, with nicol and half-wave plate; c and d, circularly polarized light, with nicol and quarter-wave plate; c shows reversal of polarity in adjacent spots, Credit Line: The Hale Observatory, courtesy of AIP Emilio Segrè Visual Archives
Abstract/Description: Spectra showing the Zeeman effect the splitting of lines in a magnetic field. C9 Iron triplet A 6173 in spectra Sun-spots. a and b, plane polarized light, with nicol and half-wave plate; c and d, circularly polarized light, with nicol and quarter-wave plate; c shows reversal of polarity in adjacent spots
Subject(s): Observatories
Optical spectroscopy
Electromagnetism
Diagrams
Mount Wilson Observatory
Credit Line: The Hale Observatory, courtesy of AIP Emilio Segrè Visual Archives
Catalog ID: Mount Wilson Observatory H23