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相关论文: The Coronal Mass Ejection Visibility Function of M…

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Due to projection effects, coronagraphic observations cannot uniquely determine parameters relevant to the geoeffectiveness of CMEs, such as the true propagation speed, width, or source location. The Cone Model for Coronal Mass Ejections…

天体物理学 · 物理学 2008-11-26 G. Michalek

Coronal mass ejections (CMEs) are thought to drive collisionless shocks in the solar corona, which in turn have been shown capable of accelerating solar energetic particles (SEPs) in minutes. It has been notoriously difficult to extract…

太阳与恒星天体物理 · 物理学 2015-06-19 Kamen A. Kozarev , John C. Raymond , Vasili V. Lobzin , Michael Hammer

Forecasting the geomagnetic effects of solar storms, known as coronal mass ejections (CMEs), is currently severely limited by our inability to predict the magnetic field configuration in the CME magnetic core and by observational effects of…

Measuring the physical parameters of Coronal Mass Ejections (CMEs), particularly their entrained magnetic field, is crucial for understanding their physics and for assessing their geo-effectiveness. At the moment, only remote sensing…

太阳与恒星天体物理 · 物理学 2020-08-13 Surajit Mondal , Divya Oberoi , Angelos Vourlidas

We report on the parallel analysis of the periodic behaviour of coronal mass ejections (CMEs) based on 21 years [1996 -- 2016] of observations with the SOHO/LASCO--C2 coronagraph, solar flares, prominences, and several proxies of solar…

太阳与恒星天体物理 · 物理学 2018-08-15 Tatiana Barlyaeva , Julien Wojak , Philippe Lamy , Brice Boclet , Imre Toth

We present the application of novel diagnostics to the spectroscopic observation of a Coronal Mass Ejection (CME) on disk by the Extreme Ultraviolet Imaging Spectrometer (EIS) on the Hinode spacecraft. We apply a recently developed line…

太阳与恒星天体物理 · 物理学 2010-08-31 S. W. McIntosh , B. De Pontieu , R. J. Leamon

The Coronal Multichannel Polarimeter (CoMP) measures not only the polarization of coronal emission, but also the full radiance profiles of coronal emission lines. For the first time, CoMP observations provide high-cadence image sequences of…

太阳与恒星天体物理 · 物理学 2016-10-05 H. Tian , S. Tomczyk , S. W. McIntosh , C. Bethge , G. de Toma , S. Gibson

In this article, we present the relationship between prominence eruptions (PEs) and coronal mass ejections (CMEs) from May 2010 to December 2019 covering most of solar cycle 24. We used data from the Atmospheric Imaging Assembly (AIA) for…

太阳与恒星天体物理 · 物理学 2025-06-02 Pooja Devi , Nat Gopalswamy , Seiji Yashiro , Sachiko Akiyama , Ramesh Chandra , Kostadinka Koleva

Coronal mass ejections (CMEs) and corotating interaction regions (CIRs) as well as their source regions are important because of their space weather consequences. The current understanding of CMEs primarily comes from the Solar and…

We discuss features of coronal mass ejections (CMEs) that are specific to heliospheric observations at large elongation angles. Our analysis is focused on a series of two eruptions that occurred on 2007 January 24-25, which were tracked by…

空间物理 · 物理学 2009-05-18 N. Lugaz , A. Vourlidas , I. I. Roussev , C. Jacobs , W. B. Manchester , O. Cohen

Coronal mass ejections (CMEs) stand as intense eruptions of magnetized plasma from the Sun, playing a pivotal role in driving significant changes of the heliospheric environment. Deducing the properties of CMEs from their progenitors in…

太阳与恒星天体物理 · 物理学 2024-07-15 J. H. Guo , L. Linan , S. Poedts , Y. Guo , B. Schmieder , A. Lani , Y. W. Ni , M. Brchnelova , B. Perri , T. Baratashvili , S. T. Li , P. F. Chen

Coronal dimmings are distinct phenomena associated to coronal mass ejections (CMEs). The study of coronal dimmings and the extraction of their characteristic parameters helps us to obtain additional information of CMEs, especially on the…

太阳与恒星天体物理 · 物理学 2018-04-04 Karin Dissauer , Astrid M. Veronig , Manuela Temmer , Tatiana Podladchikova , Kamalam Vanninathan

Coronal mass ejections (CMEs) are the main driver of Space Weather. Therefore, a precise forecasting of their likely geo-effectiveness relies on an accurate tracking of their morphological and kinematical evolution throughout the…

太阳与恒星天体物理 · 物理学 2015-06-18 T. Nieves-Chinchilla , A. Vourlidas , G. Stenborg , N. P. Savani , A. Koval , A. Szabo , L. K. Jian

In a space weather context, the most geoeffective coronal mass ejections (CMEs) are fast CMEs from Earth-facing solar active regions. These CMEs are difficult to characterize in coronagraph data due to their high speed (fewer observations),…

太阳与恒星天体物理 · 物理学 2025-03-04 Harshita Gandhi , Alexander James , Huw Morgan , Lucie Green

The Ultraviolet Coronagraph Spectrometer on board the Solar and Heliospheric Observatory (SOHO) often observes low ionization state coronal mass ejection (CME) plasma at ultraviolet wavelengths. The CME plasmas are often detected in O VI…

太阳与恒星天体物理 · 物理学 2019-10-02 Jin-Yi Lee , John C. Raymond

Solar Coronal Mass Ejections (CMEs) are sometimes deflected during their propagation. This deflection may be the consequence of interaction between a CME and a coronal hole or the solar wind. We analyze 44 halo-CMEs whose deflection angle…

太阳与恒星天体物理 · 物理学 2020-09-02 Jingjing Wang , J. Todd Hoeksema , Siqing Liu

Coronal mass ejections (CMEs) are relatively a recently-discovered phenomenon, in 1971, some fifteen years into the Space Era. It took another two decades to realize that CMEs are the most important players in solar terrestrial relationship…

太阳与恒星天体物理 · 物理学 2016-03-08 Nat Gopalswamy

Context. Studying the kinematic and dynamic evolution of fast eruptive events from the middle to high solar corona is a primary objective of the Metis coronagraph on Solar Orbiter. During perihelion, Metis acquires visible light images at a…

We examine 188 coronal mass ejections (CMEs) measured by the twin STEREO spacecraft during 2007-2016 to investigate the generic features of the CME sheath and the magnetic ejecta (ME) and dependencies of average physical parameters of the…

空间物理 · 物理学 2020-12-09 T. M. Salman , N. Lugaz , C. J. Farrugia , R. M. Winslow , L. K. Jian , A. B. Galvin