138 citations · 260 across the 4 of their papers we have counts for
8 papers · 1 filter
Properties and Geoeffectiveness of Magnetic Clouds during Solar Cycles 23 and 24
N. Gopalswamy, S. Yashiro, H. Xie +2
We report on a study that compares the properties of magnetic clouds (MCs) during the first 73 months of solar cycles 23 and 24 in order to understand the weak geomagnetic activity…
Low-frequency type II radio detections and coronagraph data to describe and forecast the propagation of 71 CMEs/shocks
H. Cremades, F. A. Iglesias, O. C. St. Cyr +3
The vulnerability of technology on which present society relies demands that a solar event, its time of arrival at Earth, and its degree of geoeffectiveness be promptly forecasted.…
Ground Level Enhancement in the 2014 January 6 Solar Energetic Particle Event
N. Thakur, N. Gopalswamy, H. Xie +4
We present a study of the 2014 January 6 solar energetic particle (SEP) event, which produced a small ground level enhancement (GLE), making it the second GLE of this unusual solar…
A Multiwavelength Study of Eruptive Events on January 23, 2012 Associated with a Major Solar Energetic Particle Event
N. C. Joshi, W. Uddin, A. K. Srivastava +15
We use multiwavelength data from space and ground based instruments to study the solar flares and coronal mass ejections (CMEs) on January 23, 2012 that were responsible for one of…
The First Ground Level Enhancement Event of Solar Cycle 24: Direct Observation of Shock Formation and Particle Release Heights
N. Gopalswamy, H. Xie, S. Akiyama +3
We report on the 2012 May 17 Ground Level Enhancement (GLE) event, which is the first of its kind in Solar Cycle 24. This is the first GLE event to be fully observed close to the s…
Height of Shock Formation in the Solar Corona Inferred from Observations of Type II Radio Bursts and Coronal Mass Ejections
N. Gopalswamy, H. Xie, P. Mäkelä +12
Employing coronagraphic and EUV observations close to the solar surface made by the Solar Terrestrial Relations Observatory (STEREO) mission, we determined the heliocentric distanc…