Statistical Study of Coronal Mass Ejections of the 23rd and 24th Solar Cycles Based on Their Angular Width W. Hannah Blessy, A. Mujiber Rahman, S. S. R. Inbanathan, Pa. Gokhula Prasad Geomagnetism and Aeronomy, 2024 This study is based on the angular width of CMEs from the 23rd and 24th solar cycles. We divided the CMEs seen during the 23rd (1996–2007) and 24th (2008–2017) solar cycles into three categories: Narrow (width ≤ 20°), Intermediate (20° < width < 200°), and Wide (width ≥ 200°). It was found that the 24th solar cycle had twice as much as narrow CMEs than what occurred in the 23rd cycle. Similarly, there were about 1.2 times more intermediate CMEs in the 24th cycle than in the 23rd. Wide CMEs followed a similar trend of 1.3 times the number found for the 23rd cycle. Both cycles followed an analogous trend with respect to the number of CMEs based on their angular width. An intriguing find is that the percentage of slow (speed < 500 km/s) CMEs is greater in narrow and intermediate ones in the 23rd and 24th cycles compared to fast CMEs (speed > 500 km/s), whereas it is the opposite with wide CMEs. Wide CMEs are observed to have the highest mean speed among the three groups. Overall, it was found that all three groups of CMEs in the 23rd solar cycle had faster mean, median, maximum, and minimal speeds than those in the 24th cycle.
RECENT SCHOLAR PUBLICATIONS
Study of solar activities associated with a Halo CME on 17 Feb 2023 event AA Ahamed, SP Subramanian, AM Rahman, AK Raja, K Mahalakshmi, ... New Astronomy 114, 102312 , 2025 2025.0 Citations: 4
Investigations on halo coronal mass ejections, sunspots and their geoeffectiveness in the rising phase of the solar cycle 25 A Kubera Raja, A Mujiber Rahman Astrophysics and Space Science 369 (10), 104 , 2024 2024.0 Citations: 1
Statistical Study of Coronal Mass Ejections of the 23rd and 24th Solar Cycles Based on Their Angular Width WH Blessy, AM Rahman, SSR Inbanathan, PG Prasad Geomagnetism and Aeronomy 64 (4), 592-596 , 2024 2024.0
Empirical relationship between CME parameters and geo-effectiveness of halo CMEs in the rising phase of solar cycle 24 (2011–2013) A Shanmugaraju, M Syed Ibrahim, YJ Moon, A Mujiber Rahman, ... Solar Physics 290 (5), 1417-1427 , 2015 2015.0 Citations: 20
Investigations on geo-effective parameters of halo coronal mass ejections M Rahman, U Subramanian, V Vasanth International Journal of Scientific Footprints 5, 34-47 , 2014 2014.0 Citations: 1
A statistical study on the stand-off distances of interplanetary coronal mass ejections AM Rahman, A Shanmugaraju, S Umapathy, YJ Moon Journal of Atmospheric and Solar-Terrestrial Physics 105, 181-190 , 2013 2013.0 Citations: 8
Propagation of normal and faster CMEs in the interplanetary medium AM Rahman, A Shanmugaraju, S Umapathy Advances in Space Research 52 (6), 1168-1177 , 2013 2013.0 Citations: 8
Solar and interplanetary parameters of CMEs with and without type II radio bursts AM Rahman, S Umapathy, A Shanmugaraju, YJ Moon Advances in space research 50 (4), 516-525 , 2012 2012.0 Citations: 11
Coronal mass ejections—Propagation time and associated internal energy PK Manoharan, AM Rahman Journal of Atmospheric and Solar-Terrestrial Physics 73 (5-6), 671-677 , 2011 2011.0 Citations: 44
Propagation characteristics of coronal mass ejections and their effects at the near-Earth environment AM Rahman, PK Manoharan, S Umapathy Indian Journal of Radio & Space Physics 39, 276-279 , 2010 2010.0 Citations: 7
Effects of Coronal Mass Ejection Associated with Eruptive Flares of the Sun AM Rahman, S Umapathy Bulletin of the Astronomical Society of India, Vol. 33, p. 367-367 33, 367-367 , 2005 2005.0
Sun and Earthquakes SP SUBRAMANIAN, AA AHAMED, AM RAHMAN
Multi-Wavelength Study of A Prominence Eruption and Its Consequences in the Interplanetary Medium AM Rahman
MOST CITED SCHOLAR PUBLICATIONS
Coronal mass ejections—Propagation time and associated internal energy PK Manoharan, AM Rahman Journal of Atmospheric and Solar-Terrestrial Physics 73 (5-6), 671-677 , 2011 2011.0 Citations: 44
Empirical relationship between CME parameters and geo-effectiveness of halo CMEs in the rising phase of solar cycle 24 (2011–2013) A Shanmugaraju, M Syed Ibrahim, YJ Moon, A Mujiber Rahman, ... Solar Physics 290 (5), 1417-1427 , 2015 2015.0 Citations: 20
Solar and interplanetary parameters of CMEs with and without type II radio bursts AM Rahman, S Umapathy, A Shanmugaraju, YJ Moon Advances in space research 50 (4), 516-525 , 2012 2012.0 Citations: 11
A statistical study on the stand-off distances of interplanetary coronal mass ejections AM Rahman, A Shanmugaraju, S Umapathy, YJ Moon Journal of Atmospheric and Solar-Terrestrial Physics 105, 181-190 , 2013 2013.0 Citations: 8
Propagation of normal and faster CMEs in the interplanetary medium AM Rahman, A Shanmugaraju, S Umapathy Advances in Space Research 52 (6), 1168-1177 , 2013 2013.0 Citations: 8
Propagation characteristics of coronal mass ejections and their effects at the near-Earth environment AM Rahman, PK Manoharan, S Umapathy Indian Journal of Radio & Space Physics 39, 276-279 , 2010 2010.0 Citations: 7
Study of solar activities associated with a Halo CME on 17 Feb 2023 event AA Ahamed, SP Subramanian, AM Rahman, AK Raja, K Mahalakshmi, ... New Astronomy 114, 102312 , 2025 2025.0 Citations: 4
Investigations on halo coronal mass ejections, sunspots and their geoeffectiveness in the rising phase of the solar cycle 25 A Kubera Raja, A Mujiber Rahman Astrophysics and Space Science 369 (10), 104 , 2024 2024.0 Citations: 1
Investigations on geo-effective parameters of halo coronal mass ejections M Rahman, U Subramanian, V Vasanth International Journal of Scientific Footprints 5, 34-47 , 2014 2014.0 Citations: 1
Statistical Study of Coronal Mass Ejections of the 23rd and 24th Solar Cycles Based on Their Angular Width WH Blessy, AM Rahman, SSR Inbanathan, PG Prasad Geomagnetism and Aeronomy 64 (4), 592-596 , 2024 2024.0
Effects of Coronal Mass Ejection Associated with Eruptive Flares of the Sun AM Rahman, S Umapathy Bulletin of the Astronomical Society of India, Vol. 33, p. 367-367 33, 367-367 , 2005 2005.0
Sun and Earthquakes SP SUBRAMANIAN, AA AHAMED, AM RAHMAN
Multi-Wavelength Study of A Prominence Eruption and Its Consequences in the Interplanetary Medium AM Rahman