Identification of FeH molecular lines in the spectrum of a sunspot umbra

Free access article

Issue		Astron. Astrophys. Suppl. Ser. Volume 129, Number 3, May_I 1998


Page(s)		435 - 443
DOI		http://dx.doi.org/10.1051/aas:1998196

DOI: 10.1051/aas:1998196

A&A Supplement series, Vol. 129, May I 1998, 435-443

Received August 18; accepted October 7, 1997

Identification of FeH molecular lines in the spectrum of a sunspot umbra

D.E. Fawzy, N.H. Youssef, and O. Engvold

Send offprint request: N.H. Youssef, cu090@frcu.eun.eg

Astronomy Department, Faculty of Science, Cairo University, Cairo, Egypt
currently: Institut für Theoretische Astrophysik der Universität Heidelberg, Tiergartenstrasse 15, D-69121 Heidelberg, Germany
Institute of Theoretical Astrophysics, University of Oslo, Blindern, Oslo, Norway

Abstract:

A high resolution spectrum of a large - sunspot umbra is used for identification of two bands (2-0) and (2-1) of the - system of the FeH molecule, in addition to the previously identified bands (0-0) and (1-0) of the same system. The spectrum was obtained with FTS of the McMath-Pierce Solar Telescope of NSO/NOAO at Kitt Peak.

keywords: molecular data -- Sun: atmosphere -- Sun: sunspots

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