Published 1987
| Version v1
Miscellaneous
Solar 530.3 nm corona irradiance variations in the cycle 21
Creators
- 1. Slovenska Akademia Vied, Skalnate Pleso (Czechoslovakia). Astronomicky Ustav
Description
It is generally known that the intensity of the 530.3 nm coronal line depends on solar activity. The proposed coronal index (CI) represents the 530.3 nm line irradiance from the whole corona as it is seen from the Earth in Wsr-1x1016. CI is derived from daily measured intensities around the disc of the Sun. Maximum values of CI were observed in the second half of 1981 just before a sharp decrease in Wolf's number. Monthly average values of CI in cycle 21 vary from 1.64 to 18.93. A rough comparison of CI with similar indices of UV emissions shows relatively good agreement. (author). 4 figs., 18 refs
Additional details
Publishing Information
- Imprint Title
- The Sun
- Imprint Pagination
- 286 p.
- Journal Page Range
- p. 85-87.
- Report number
- INIS-mf--11353
Conference
- Title
- 10. European regional astronomy meeting of the IAU.
- Dates
- 24-29 Aug 1987.
- Place
- Prague (Czechoslovakia).
INIS
- Country of Publication
- Serbia and Montenegro
- Country of Input or Organization
- Serbia and Montenegro
- INIS RN
- 20020553
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- SOLAR CORONA; SOLAR CYCLE; SUN; VARIATIONS; VISIBLE RADIATION
- Descriptors DEC
- ATMOSPHERES; ELECTROMAGNETIC RADIATION; MAIN SEQUENCE STARS; RADIATIONS; SOLAR ATMOSPHERE; STARS; STELLAR ATMOSPHERES; STELLAR CORONAE