Detection of the 1.6 μm E 4Π-A 4Π FeH System in Sunspot and Cool Star Spectra

Details Detection of the 1.6 μm E 4Π-A 4Π FeH System in Sunspot and Cool Star Spectra Detection of the 1.6 μm E 4Π-A 4Π FeH System in Sunspot and Cool Star Spectra

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001apj...559..424w&link_type=abstract

The Astrophysical Journal, Volume 559, Issue 1, pp. 424-427.

Astronomy and Astrophysics

Astronomy

25

Infrared: Stars, Line: Identification, Methods: Laboratory, Molecular Data, Stars: Late-Type, Sun: Sunspots

Scientific paper

Lines of a previously undescribed molecular band have been identified in high-resolution spectra of sunspots and in the spectra of two M dwarfs and one L dwarf. This band has also been found in laboratory spectra of a source known to produce FeH. The band has a head at 1.583 μm (6317 cm-1) and is degraded to longer wavelengths. Based on observational evidence and a published predicted band position, it is suggested that this is the 0-0 band of the E 4Π-A 4Π system of FeH.

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