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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 I a and I q, 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.)

Information

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

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