The rotational temperature of the FeH molecules in a large sunspot

Details The rotational temperature of the FeH molecules in a large sunspot The rotational temperature of the FeH molecules in a large sunspot

Nov 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009newa...14..708f&link_type=abstract

New Astronomy, Volume 14, Issue 8, p. 708-710.

Astronomy and Astrophysics

Astronomy

1

Atomic, Molecular, And Chemical, And Grain Processes, Photosphere, Sun Spots, Solar Cycles

Scientific paper

Equivalent widths for four FeH bands (0-0), (1-0), (2-0), and (2-1) versus rotational quantum number J have been used to determine the rotational temperature of the molecule. The average value obtained from the first three bands is Trot=2900K±300K. This result agrees well with the temperatures derived for other molecules in sunspot umbrae. The current value is notably higher than that obtained earlier by (Mulchaey, J.S., 1989. Pub. Astron. Soc. Pacific 101, 211) for the same molecule.

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