Dependence of the He/H_8_ emission ratio on brightness, temperature, and structuring of prominences

Details Dependence of the He/H_8_ emission ratio on brightness, temperature, and structuring of prominences Dependence of the He/H_8_ emission ratio on brightness, temperature, and structuring of prominences

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...286..302s&link_type=abstract

Astronomy and Astrophysics 286, 302-304 (1994)

Astronomy and Astrophysics

Astrophysics

14

Sun: Prominences, Kinetic Temperature

Scientific paper

The line pair He 3888 and H_8_ 3889 has been observed simultaneously with the Ca^+^8498 line in a number of quiescent prominences. The He/H_8_ emission ratio R is found to cover defined parts of a general anti-correlation with the total H_8_ emission, depending on the kinetic temperature, T_kin_, of the individual prominence: High H_8_ brightness is related to small R and Tkin values and preferably occurs in prominences with less significant fine-structure.

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