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Variation of Quiet Sun Radiation during Solar Cycles 23 and 24

Published online by Cambridge University Press:  24 July 2018

Mahender Aroori ,
G. Yellaiah  and
K. Chenna Reddy
Mahender Aroori
Affiliation:
Department of Astronomy, Osmania University, Hyderabad, Telangana, India email: mahenderastro@gmail.com
G. Yellaiah
Affiliation:
Department of Astronomy, Osmania University, Hyderabad, Telangana, India email: mahenderastro@gmail.com
K. Chenna Reddy
Affiliation:
Department of Astronomy, Osmania University, Hyderabad, Telangana, India email: mahenderastro@gmail.com
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Abstract

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Radio observations play a very important role in understanding the structure of the solar atmosphere. In this paper the quiet sun component of the solar radio emission has been investigated using data obtained from the Solar Indices Bulletin, National Geophysical Data Centre. By statistical method, the quiet sun component is estimated for 84 successive basic periods containing three solar rotations each using data obtained at different frequencies. From the quiet sun component we estimate the brightness temperature in each observing frequency.

Keywords

Sun: Radio radiation - Sun: Quiet sun radiation - Sun: Chromosphereetc.

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