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Solar flares and coronal mass ejections (CMEs) are manifestations of energy release in the solar atmosphere, which can be accompanied by dynamic mass motions and waves in the surrounding atmosphere. Here, we present observations of plasma…

太阳与恒星天体物理 · 物理学 2025-03-26 Mohamed Nedal , David M. Long , Catherine Cuddy , Lidia Van Driel-Gesztelyi , Peter T. Gallagher

The arrival of a series of coronal mass ejections (CMEs) at the Earth resulted in a great geomagnetic storm on 10 May 2024, the strongest storm in the last two decades. We investigate the kinematic and thermal evolution of the successive…

太阳与恒星天体物理 · 物理学 2025-04-07 Soumyaranjan Khuntia , Wageesh Mishra , Anjali Agarwal

Coronal dimmings associated with coronal mass ejections (CME) from the Sun have gained much attention since the late 1990s when they were first observed in high-cadence imagery of the SOHO/EIT and Yohkoh/SXT instruments. They appear as…

We present the evolution of a coronal cavity encompassing its quiescent and eruptive phases in the lower corona. Using the multi-vantage point observations from the SDO/AIA, STEREO SECCHI/EUVI and PROBA2/SWAP EUV imagers, we capture the…

太阳与恒星天体物理 · 物理学 2019-08-10 Ranadeep Sarkar , Nandita Srivastava , Marilena Mierla , Matthew J West , Elke D'Huys

We present a hybrid combination of forward and inverse reconstruction methods using multiple observations of a coronal mass ejection (CME) to derive the 3D 'true' Height-Time plots for individual CME components. We apply this hybrid method…

太阳与恒星天体物理 · 物理学 2015-05-13 Alex Antunes , Arnaud Thernisien , Amos Yahil

For a solar flare occurring on 2010 November 3, we present observations using several SDO/AIA extreme-ultraviolet (EUV) passbands of an erupting flux rope followed by inflows sweeping into a current sheet region. The inflows are soon…

太阳与恒星天体物理 · 物理学 2015-06-03 S. L. Savage , G. Holman , K. K. Reeves , D. B. Seaton , D. E. McKenzie , Y. Su

Context. We study two coronal mass ejections (CMEs) observed between April 1-2, 2019 by both the inner Wide-Field Imager for Parker Solar Probe (WISPR-I) and the inner heliospheric imager (HI-1) on board STEREO-A. This is the first study of…

太阳与恒星天体物理 · 物理学 2021-06-02 Carlos Roberto Braga , Angelos Vourlidas

In a case study (June 6-7, 2008) we report on how the internal structure of a coronal mass ejection (CME) at 1 AU can be anticipated from remote observations of white-light images of the heliosphere. Favorable circumstances are the absence…

We present direct evidence for the detection of the main energy release site in a non-eruptive solar flare, SOL2013-11-09T06:38UT. This GOES C2.7 event was characterised by two flaring ribbons and a compact, bright coronal source located…

太阳与恒星天体物理 · 物理学 2015-05-06 Paulo J. A. Simões , David R. Graham , Lyndsay Fletcher

Coronal mass ejections (CMEs) are one of the primary manifestations of solar activity and can drive severe space weather effects. Therefore, it is vital to work towards being able to predict their occurrence. However, many aspects of CME…

太阳与恒星天体物理 · 物理学 2017-05-24 A. W. James , L. M. Green , E. Palmerio , G. Valori , H. A. S. Reid , D. Baker , D. H. Brooks , L. van Driel-Gesztelyi , E. K. J. Kilpua

A blowout jet occurred within the south coronal hole on 9 February 2011 at 09:00 UT and was observed by the Atmospheric Imaging Assembly (AIA) and Helioseismic and Magnetic Imager (HMI) onboard the Solar Dynamics Observatory, and the EUV…

太阳与恒星天体物理 · 物理学 2015-06-17 Peter Young , Karin Muglach

Recent Solar Dynamic Observatory observations reveal that coronal mass ejections (CMEs) consist of a multi-temperature structure: a hot flux rope and a cool leading front (LF). The flux rope first appears as a twisted hot channel in the…

太阳与恒星天体物理 · 物理学 2015-06-12 X. Cheng , J. Zhang , D. M. Ding , Y. Liu , W. Poomvises

Coronal dimming of extreme ultraviolet (EUV) emission has the potential to be a useful forecaster of coronal mass ejections (CMEs). As emitting material leaves the corona, a temporary void is left behind which can be observed in spectral…

太阳与恒星天体物理 · 物理学 2014-06-25 J. P. Mason , T. N. Woods , A. Caspi , B. J. Thompson , R. A. Hock

Context: Late on 2013 August 19, a coronal mass ejection (CME) erupted from an active region located near the far-side central meridian from Earth's perspective. The event and its accompanying shock were remotely observed by the STEREO-A,…

By measuring the geometrical properties of the coronal mass ejection (CME) flux rope and the leading shock observed on 2010 June 13 by the Solar Dynamics Observatory (SDO) mission's Atmospheric Imaging Assembly (AIA) we determine the…

太阳与恒星天体物理 · 物理学 2015-05-30 Nat Gopalswamy , Nariaki Nitta , Sachiko Akiyama , Pertti Mäkelä , Seiji Yashiro

Stellar flares and coronal mass ejections (CMEs) can strip planetary atmospheres, reducing the potential habitability of terrestrial planets. While flares have been observed for decades, stellar CMEs remain elusive. Extreme ultraviolet…

太阳与恒星天体物理 · 物理学 2025-07-30 James Paul Mason , Allison Youngblood , Kevin France , Astrid M. Veronig , Meng Jin

The thermodynamic evolution of Coronal Mass Ejections (CMEs) in the inner corona (< 1.5 R$_{sun}$) is not yet completely understood. In this work, we study the evolution of thermodynamic properties of a CME core observed in the inner corona…

太阳与恒星天体物理 · 物理学 2023-01-31 Jyoti Sheoran , Vaibhav Pant , Ritesh Patel , Dipankar Banerjee

Solar corona, the last main layer of the atmosphere of the Sun, is detectable in the EUV and X-ray. The corona is expanding into space up to millions of kilometers and is observable during the eclipse. The temperature is increasing about…

太阳与恒星天体物理 · 物理学 2019-04-02 Najmeh Ahmadi , Shervin Parsi
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