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Models of Active Regions in the Transition Zone from UV Observations

Published online by Cambridge University Press:  12 April 2016

A. M. Cantú ,
G. Poletto  and
G. L. Tagliaferri
A. M. Cantú
Affiliation:
Osservatorio Astrofisico di Arcetri, Firenze, Italy
G. Poletto
Affiliation:
Osservatorio Astrofisico di Arcetri, Firenze, Italy
G. L. Tagliaferri
Affiliation:
Osservatorio Astrofisico di Arcetri, Firenze, Italy

Extract

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The Harvard College Observatory UV spectroheliometer aboard the OSO-4 spacecraft has obtained the enhancement of active regions, i.e. the ratio of their intensity to that of the quiet Sun Ia and Iq, for several lines formed in the transition region between the solar chromosphere and the corona (The subscripts a an q indicate active and quiet regions, respectively.)

Type
Section III / Stellar and Solar UV Radiation
Information
International Astronomical Union Colloquium , Volume 14: Special Issue: Ultraviolet and X-Ray Spectroscopy of Astrophysical and Laboratory Plasmas , November 1972 , pp. 638
Copyright
Copyright © Reidel 1972

References

Athay, R. G.: 1966, Astrophys. J. 145, 784.CrossRefGoogle Scholar
De Loore, C.: 1970, Astrophys. Space Sci. 6, 60.CrossRefGoogle Scholar
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