A Unified Model of Coronal Mass Ejection–related Type II Radio Bursts

2000 ◽  
Vol 538 (2) ◽  
pp. L175-L178 ◽  
Author(s):  
Tetsuya Magara ◽  
Pengfei Chen ◽  
Kazunari Shibata ◽  
Takaaki Yokoyama
Keyword(s):  
Coronal Mass Ejection ◽  
Unified Model ◽  
Radio Bursts ◽  
Type Ii ◽  
Type Ii Radio Bursts ◽  
Mass Ejection

Characteristics of coronal mass ejection associated with DH type II radio bursts (All and Limb events)

2010 ◽  
Vol 330 (2) ◽  
pp. 237-242 ◽  
Author(s):  
P. Pappa Kalaivani ◽  
S. Umapathy ◽  
A. Shanmugaraju ◽  
O. Prakash
Keyword(s):  
Coronal Mass Ejection ◽  
Radio Bursts ◽  
Type Ii ◽  
Type Ii Radio Bursts ◽  
Mass Ejection

Relationship Between Rising Phase of Solar Cycle 23rd and 24th with Respect to Geoeffectiveness

2020 ◽  
Vol 12 (1) ◽  
pp. 70-74
Author(s):  
Beena Bhatt ◽  
Harish Chandra
Keyword(s):  
Solar Cycle ◽  
Solar Flare ◽  
Strong Correlation ◽  
Radio Bursts ◽  
Type Ii ◽  
Solar Cycles ◽  
Interplanetary Magnetic Fields ◽  
Type Ii Radio Bursts ◽  
Current Article ◽  
Mass Ejection

The current article demonstrates the geoeffectiveness of solar flare associated Coronal mass ejection (CME) accompanied with Deca-hectometric (DH) type II radio bursts by comparing the set of events in the rising phase of solar cycle 23rd (1996–2001) and 24th (2009–2014). Our observations are: (i) Solar cycle 23rd have high Dst index than the solar cycle 24th except for the year 1999. (ii) Dst has its peak between 3rd to 5th day after the CME onset for both the solar cycles. (iii) The correlation coefficient between Interplanetary magnetic fields (IMF) and Dst is good for both the solar cycles. (iv) Solar cycle 23rd have very strong correlation between CRI and Dst as compare to solar cycle 24th. Thus, our predictions show that solar cycle 23rd is more geoeffective than solar cycle 24th.

Type II Solar Radio Bursts over Solar Cycle 21

1994 ◽  
Vol 144 ◽  
pp. 283-284
Author(s):  
G. Maris ◽  
E. Tifrea
Keyword(s):  
Solar Radio ◽  
Interplanetary Space ◽  
Impulsive Phase ◽  
Radio Bursts ◽  
Type Ii ◽  
Solar Radio Bursts ◽  
Strong Energy ◽  
Mass Ejection ◽  
Geophysical Effect ◽  
Radio Event

The type II solar radio bursts produced by a shock wave passing through the solar corona are one of the most frequently studied solar activity phenomena. The scientific interest in this type of phenomenon is due to the fact that the presence of this radio event in a solar flare is an almost certain indicator of a future geophysical effect. The origin of the shock waves which produce these bursts is not at all simple; besides the shocks which are generated as a result of a strong energy release during the impulsive phase of a flare, there are also the shocks generated by a coronal mass ejection or the shocks which appear in the interplanetary space due to the supplementary acceleration of the solar particles.

Solar and interplanetary parameters of CMEs with and without type II radio bursts

2012 ◽  
Vol 50 (4) ◽  
pp. 516-525 ◽  
Author(s):  
A. Mujiber Rahman ◽  
S. Umapathy ◽  
A. Shanmugaraju ◽  
Y.-J. Moon
Keyword(s):  
Radio Bursts ◽  
Type Ii ◽  
Type Ii Radio Bursts

scholarly journals Coronal electron density distributions estimated from CMEs, DH type II radio bursts, and polarized brightness measurements

2016 ◽  
Vol 121 (4) ◽  
pp. 2853-2865 ◽  
Author(s):  
Jae‐Ok Lee ◽  
Y.‐J. Moon ◽  
Jin‐Yi Lee ◽  
Kyoung‐Sun Lee ◽  
R.‐S. Kim
Keyword(s):  
Electron Density ◽  
Radio Bursts ◽  
Type Ii ◽  
Density Distributions ◽  
Type Ii Radio Bursts ◽  
Coronal Electron

Investigation of X-class Flare-Associated Coronal Mass Ejections with and without DH Type II Radio Bursts

Solar Physics ◽  
2015 ◽  
Vol 290 (11) ◽  
pp. 3365-3377 ◽  
Author(s):  
M. Bendict Lawrance ◽  
A. Shanmugaraju ◽  
Bojan Vršnak
Keyword(s):  
Coronal Mass Ejections ◽  
Radio Bursts ◽  
Type Ii ◽  
Type Ii Radio Bursts ◽  
Class Flare

Fine structure of decametric type II radio bursts

2007 ◽  
Vol 33 (3) ◽  
pp. 192-202 ◽  
Author(s):  
G. P. Chernov ◽  
A. A. Stanislavsky ◽  
A. A. Konovalenko ◽  
E. P. Abranin ◽  
V. V. Dorovsky ◽  
...  
Keyword(s):  
Fine Structure ◽  
Radio Bursts ◽  
Type Ii ◽  
Type Ii Radio Bursts

scholarly journals Optical Observations of the Solar Disturbances Causing Type II Radio Bursts

1958 ◽  
Vol 11 (3) ◽  
pp. 353 ◽  
Author(s):  
RG Giovanelli ◽  
JA Roberts
Keyword(s):  
Subsequent Development ◽  
Optical Observations ◽  
Radio Bursts ◽  
Type Ii ◽  
Type Ii Radio Bursts ◽  
Solar Disturbances ◽  
Dark Filament

Identifications have been established for the solar optical events associated with a number of type II radio bursts. Near or at the limb these have been ejections with velocities exceeding that of sound in the corona. Where the event has been on the disk there has usually been a very bright flare, with some evidence of dark filament activity. In two cases the event was the disappearance (i.e. ejection) of a filament with the subsequent development of flares on either side.

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