Variations of Signal Strength during Solar Bursts: A Probable Coronal and Surface Effects of the Sun
DOI:
https://doi.org/10.24297/jap.v21i.9403Keywords:
Solar Flare, Disturbance Storm time index, Solar wind parameters, Radio SignalAbstract
Variations of signal strengths during solar bursts recorded at Kalyani corresponding to two different frequencies, 406.7 MHz and 100 MHz are reported. The amplitude of the signals received at 406.7 MHz is found larger and that the flares analyzed are mostly of M-type. The signal strengths of the coronal effect at such times were very high compared to the surface effect of the Sun. The signal level of surface effect of the Sun at the peak activity varies in amplitude from 0.06 volts to 0.1 volt while those related to solar corona vary in between 7.0 to 7.2 volts. Both the solar wind velocity and proton density are found to increase in the dates of severe bursts and there are sudden disturbances in the arrival direction of solar wind particles. Also the geomagnetic indices are enhanced at the time of solar bursts when the DST index reduces rapidly.
Downloads
References
A B Bhattacharya, R Bhattacharya, S Das, D Halder, A Sarkar, A Bhoumick, T Das, and M Debnath, Research Journal of Earth and Planetary Studies. 1 9 (2011)
R Behlke, IRF Scientific Report 275, Swedish Institute of Space Physics, Sweden, (2001)
K Shibata and T Magara, Living Rev. Solar Phys. 8 6 (2011)
A B Bhattacharya, D Halder, A Sarkar, J Pandit and B Raha, International J. of Multidispl. Research & Advcs. in Engg. 4 225 (2012)
A B Bhattacharya, S Joardar and R Bhattacharya, Astronomy and Astrophysics. Infinity Science Press, Massachusetts, USA, p 105 (2008)
V Williams, J Austin and J D Haigh, Advances in Space Research. 27 933 (2001)
A B Bhattacharya, S Sarkar and R Bhattacharya, Indian Journal of Physics. 84 511 (2010)
R Bhattacharya, A Nag, R Guha, A Bhoumick, S De and A B Bhattacharya, Indian Journal of Physics. 84 1587 (2010)
N O Bakare and V U Chukwuma, Indian journal of Radio and Space Physics. 39 150 (2010)
U Feldman, E Landi and N A Schwadron, Journal of Geophysical Research, 110 A07109.1, (2005)
B A Tinsley, Space Sci.Rev., 94 231 (2000)
F Boberg and H Lundstedt, Geophys. Res. Lett. 30 1825, (2003)
D F Webb and T A Howard, Living Rev. Solar Phys. 9 3 (2012)
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2023 Debojyoti Halder, Bipasa Raha
This work is licensed under a Creative Commons Attribution 4.0 International License.
All articles published in Journal of Advances in Linguistics are licensed under a Creative Commons Attribution 4.0 International License.
