International Journal of Astronomy and Astrophysics, 2019, 9, 191-199
http://www.scirp.org/journal/ijaa
ISSN Online: 2161-4725
ISSN Print: 2161-4717
DOI: 10.4236/ijaa.2019.93014 Aug. 30, 2019 191 International Journal of Astronomy and Astrophysics
The Analysis of Interplanetary Shocks
Associated with Six Major Geo-Effective Coronal
Mass Ejections during Solar Cycle 24
Shirsh Lata Soni
1*
, Prithvi Raj Singh
2
, Bharti Nigam
1
, Radhe Syam Gupta
1
,
Pankaj Kumar Shrivastava
3
1
Department of Physics, Govt. P.G. College, Satna, India
2
Department of Physics, APS University, Rewa, India
3
Department of Physics, Govt. P.G. Model Science College, Rewa, India
Abstract
A Coronal Mass Ejection (CME) is an ejection of energetic plasma with
magnetic field from the Sun. In traversing the Sun-Earth distance, the ki-
nematics of the CME is immensely important for the prediction of space
weather. The objective of the present work is to study the propagation
properties of six major geo-effective CMEs and their associated interplaneta-
ry shocks which were observed during solar cycle 24. These reported CME
events produced intense geo-magnetic storms (Dst > 140 nT). The six CME
events have a broad range of initial linear speeds ~600 - 2700 km/sec in the
LASCO/SOHO field of view, comparing two slow CMEs (speed ~579 km/sec
and 719 km/sec), three moderate speed CMEs (speed ~1366, 1571, 1008
km/sec), and one fast CME (speed ~2684 km/sec). The actual arrival time of
the reported events is compared with the arrival time calculated using the
Empirical Shock Arrival model (ESA model). For acceleration estimation, we
utilize three different acceleration-speed equations reported in the previous
literatures for different acceleration cessation distance (ACD). In addition, we
compared the transit time estimated using the second-order speed of CMEs
with observed transit time. We also compared the observed transit time with
transit time obtained from various shock arrival model. From our present
study, we found the importance of acceleration cessation distance for CME
propagation in interplanetary space and better acceleration speed for transit
time calculation than other equations for CME forecasting.
Keywords
Coronal Mass Ejection (CME), IP Shock, Geomagnetic Strom
How to cite this paper: Soni, S.L., Singh,
P.R., Nigam, B., Gupta, R.S. and Shrivasta-
va, P.K. (2019) The Analysis of Interplane-
tary Shocks Associated with Six Major
Geo-Effective Coronal Mass Ejections dur-
ing Solar Cycle 24. International Journal of
Astronomy and Astrophysics, 9, 191-199.
https://doi.org/10.4236/ijaa.2019.93014
Received: May 9, 2019
Accepted: August 27, 2019
Published: August 30, 2019
Copyright © 2019 by author(s) and
Scientific Research Publishing Inc.
This work is licensed under the Creative
Commons Attribution International
License (CC BY 4.0).
http://creativecommons.org/licenses/by/4.0/
Open Access