Los puntos clave no están disponibles para este artículo en este momento.
An extended analysis of the Fe II spectrum, based on new observations in the infrared, has led to the identification of about 50 lines in the infrared spectrum of Eta Carinae. More than half of the lines belong to the |3d^65s-3d^65p| transition array.
Sven‐Erik Johansson (Sat,) studied this question.