Abstract Coronal mass ejections (CMEs) are associated with the eruption of magnetic flux ropes (MFRs), which usually appear as hot channels in active regions and coronal cavities quiet-Sun regions. CMEs often exhibit a classical three-part structure lower corona when imaged white-light coronagraphs, including bright front, dark cavity, core. For several decades, core cavity have been regarded e...

Abstract We investigate the temporal evolution of yearly total mass-loss rate (YTMLR) from Sun through coronal mass ejections (CMEs) over solar cycles 23 and 24. The determination CMEs can be subject to significant uncertainty. To minimize this problem, we have used extensive statistical analysis. For purpose, employed data included in Coordinated Data Analysis Workshop (CDAW) catalog. estimate...

Magnetised coronal mass ejections (CMEs) are quite substantially deformed during their journey form the Sun to Earth. Moreover, interaction of internal magnetic field with ambient solar wind can cause deflection and erosion flux. We here analyse axisymmetric (2.5D) MHD simulations normal inverse CME, i.e., opposite or same polarity as background wind, attempt quantify different forces that oper...

Coronal mass ejections (CMEs) represent one type of the major eruption from Sun. Their interplanetary counterparts, CMEs (ICMEs), are direct manifestations these structures when they propagate into heliosphere and encounter or more observing spacecraft. The ICMEs generally exhibit a set distinctive signatures in-situ spacecraft measurements. A particular subset ICMEs, so-called Magnetic Clouds ...

In this paper, ten CME events viewed by the STEREO twin spacecraft are analyzed to study the deflections of CMEs during their propagation in the corona. Based on the three-dimensional information of the CMEs derived by the graduated cylindrical shell (GCS) model (Thernisien, Howard, and Vourlidas in Astrophys. J. 652, 1305, 2006), it is found that the propagation directions of eight CMEs had ch...

Context: Coronal mass ejections (CMEs) are eruptions of plasma from the Sun that travel through interplanetary space and may encounter Earth. CMEs often enclose a magnetic flux rope (MFR), orientation which largely determines CME's geoeffectiveness. Current operational CME models do not model MFRs, but number research ones do, including Open Solar Physics Rapid Ensemble Information (OSPREI) mod...

Streamer-blowout coronal mass ejections (SBO-CMEs) are the dominant CME population during solar minimum. Although they typically slow and lack clear low-coronal signatures, can cause geomagnetic storms. With aid of extrapolated fields remote observations off-limb low corona, we study initiation an SBO-CME preceded by consecutive eruptions consistent with a multi-stage sympathetic breakout scena...

Coronal mass ejections (CMEs) are energetic expulsions of organized magnetic features from the Sun. The study CME quasi-periodicity helps establish a possible relationship between CMEs, solar flares, and geomagnetic disturbances. We used angular width CMEs as criterion for classifying in study. Based on 25 years observational data, we systematically analyzed quasi-periodic variations correspond...

Abstract Coronal mass ejections (CMEs) are energetic eruptions of organized magnetic structures from the Sun. Therefore, reconnection field during ejection can excite periodic speed oscillations CMEs. A previous study showed that frequently associated with CME propagation. The Solar and Heliospheric Observatory mission’s white-light coronagraphs have observed about 30,000 CMEs 1996 January to e...