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As a follow-up study on Sun-to-Earth propagation of fast coronal mass ejections (CMEs), we examine the Sun-to-Earth characteristics of slow CMEs combining heliospheric imaging and in situ observations. Three events of particular interest,…

Solar and Stellar Astrophysics · Physics 2016-03-23 Ying D. Liu , Huidong Hu , Chi Wang , Janet G. Luhmann , John D. Richardson , Zhongwei Yang , Rui Wang

There is a growing interest in searching for coronal mass ejections (CMEs) in other stellar systems because they are thought to be one of the important factors shaping planetary atmospheres. We investigated the possible spectral signatures…

Solar and Stellar Astrophysics · Physics 2025-04-08 Yu Xu , Hui Tian , Julián D. Alvarado-Gómez , Jeremy J. Drake , Gustavo Guerrero

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 present an analysis of the fast coronal mass ejection (CME) of 2012 March 7, which was imaged by both STEREO spacecraft and observed in situ by MESSENGER, Venus Express, Wind and Mars Express. Based on detected arrivals at four different…

Solar and Stellar Astrophysics · Physics 2014-07-18 T. Rollett , C. Moestl , M. Temmer , R. A. Frahm , J. A. Davies , A. M. Veronig , B. Vrsnak , U. V. Amerstorfer , C. J. Farrugia , T. Zic , T. L. Zhang

We present the multi-wavelength observations of asymmetric filament eruption, associated CME and coronal downflows on 2012 June 17-18 during 20:00-05:00 UT. We use SDO/AIA, STEREO-B/SECCHI observations to understand the filament eruption…

Solar and Stellar Astrophysics · Physics 2015-06-15 N. C. Joshi , A. K. Srivastava , B. Filippov , W. Uddin , P. Kayshap , R. Chandra

We present a statistical study of 62 coronal dimming events associated with Earth-directed CMEs during the quasi-quadrature period of STEREO and SDO. This unique setting allows us to study both phenomena in great detail and compare…

Solar and Stellar Astrophysics · Physics 2019-04-10 Karin Dissauer , Astrid M. Veronig , Manuela Temmer , Tatiana Podladchikova

The Solar TErrestrial RElations Observatory (STEREO) provides high cadence and high resolution images of the structure and morphology of coronal mass ejections (CMEs) in the inner heliosphere. CME directions and propagation speeds have…

Solar and Stellar Astrophysics · Physics 2015-03-31 Savani , N. P. , Davies , J. A. , Davis , C. J. , Shiota , D. , Rouillard , A. P. , Owens , M. J. , Kusano , K. , Bothmer , V. , Bamford , S. P. , Lintott , C. J. , Smith , A

The spectra of coronal mass ejections (CMEs) in the low corona play a crucial role in understanding their origins and physical mechanism, and enhancing space weather forecasting. However, capturing these spectra faces significant…

Solar and Stellar Astrophysics · Physics 2025-04-01 Lami Chan , Xianyong Bai , Hui Tian , Yufei Feng , Yu Xu , Tibor Török , Yuhang Gao , Tanmoy Samanta , Zheng Sun

We present a comprehensive statistical analysis of 106 sheath regions driven by coronal mass ejections (CMEs) and measured near 1 AU. Using data from the STEREO probes, this extended analysis focuses on two discrete categorizations. In the…

Solar and Stellar Astrophysics · Physics 2021-11-17 T. M. Salman , N. Lugaz , R. M. Winslow , C. J. Farrugia , L. K. Jian , A. B. Galvin

A simple model of the coronal magnetic field prior to the CME eruption on May 12 1997 is developed. First, the magnetic field is constructed by superimposing a large-scale background field and a localized bipolar field to model the active…

Astrophysics · Physics 2008-03-11 V. S. Titov , Z. Mikic , J. A. Linker , R. Lionello

Our knowledge of the properties of Coronal Mass Ejections (CMEs) in the inner heliosphere is constrained by the relative lack of plasma observations between Sun and 1 AU. In this work, we present a comprehensive catalog of 47 CMEs measured…

Space Physics · Physics 2020-05-06 T. M. Salman , R. M. Winslow , N. Lugaz

We present observations and modeling results of the propagation and impact at Earth of a high-latitude, extended filament channel eruption that commenced on 2015 July 9. The coronal mass ejection (CME) that resulted from the filament…

We present our results on the correlation of non-interacting coronal mass ejections (CMEs) and solar energetic particles (SEPs). A statistical analysis was conducted on 25 SEP events and the associated CME and flare during the ascending…

Solar and Stellar Astrophysics · Physics 2020-10-06 Anitha Ravishankar , Grzegorz Michalek

In this work we performed a polarimetric study of a fast and wide coronal mass ejection (CME) observed on 12 July 2012 by the COR1 and COR2 instruments onboard Solar TErrestrial RElations Observatory (STEREO) mission. The CME source region…

Solar and Stellar Astrophysics · Physics 2022-07-20 Marilena Mierla , Bernd Inhester , Andrei N. Zhukov , Sergei V. Shestov , Alessandro Bemporad , Philippe Lamy , Serge Koutchmy

The vertical current sheet (VCS) trailing coronal mass ejections (CMEs) is the key place where the flare energy release and the CME buildup take place through magnetic reconnection. It is often studied from the edge-on perspective for the…

Solar and Stellar Astrophysics · Physics 2021-09-08 Rui Liu , Yuming Wang

This study examines the relationship between early solar coronal mass ejection (CME) propagation, the associated filament eruption, and coronal dimming in the rare event observed on March 28, 2022, which featured a three-part CME in the low…

In this article, we compare the properties of two coronal mass ejections (CMEs) that show similar source region characteristics but different evolutionary behavior in the later phases. We discuss the two events in terms of their near-Sun…

Solar and Stellar Astrophysics · Physics 2022-01-19 Syed Ibrahim , Wahab Uddin , Bhuwan Joshi , Ramesh Chandra , Arun Kumar Awasthi

Owing to our dependance on spaceborne technology, an awareness of disturbances in the near-Earth space environment is proving to be increasingly crucial. Earth-directed Coronal mass ejections (CMEs) emanating from the Sun are the primary…

Solar and Stellar Astrophysics · Physics 2014-07-17 Arun Babu

The dynamic process of coronal mass ejections (CMEs) in the heliosphere provides us the key information for evaluating CMEs' geo-effectiveness and improving the accurate prediction of CME induced Shock Arrival Time (SAT) at the Earth. We…

Solar and Stellar Astrophysics · Physics 2015-01-09 Fang Shen , Chenglong Shen , Jie Zhang , Phillip Hess , Yuming Wang , Xueshang Feng , Hongze Cheng , Yi Yang

We investigate the occurrence of a CME-driven coronal dimming using unique high resolution spectral images of the corona from the Hinode spacecraft. Over the course of the dimming event we observe the dynamic increase of non-thermal line…

Astrophysics · Physics 2011-02-11 Scott W. McIntosh
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