Transequatorial Filament Eruption and Its Link to a Coronal Mass Ejection

AbstractFollowing the first observational study of the interaction between two distinct filaments (Su et al. 2007; hereafter, event 1), we present another interesting case observed by SMART telescope on 2005 June 25 with higher spatial resolution (hereafter, event 2). The two events are compared with each other. In event 1 the two filaments erupted subsequently and obvious mass flow was observed to be transferred from one erupting filament to one stable filament which triggered its eruption. On the contrary, in event 2, the two filaments erupted simultaneously and there was no transfer of material noticed between them during the initial stage. The two filaments merged together along the ejection path, indicating the bodily coalesce between the two interacting flux ropes. Moreover, event 1 was associated with a coronal mass ejection (CME), while event 2 was a failed filament eruption, thus without CME association.

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Radio Observations of Rapid Acceleration in a Slow Filament Eruption/Fast Coronal Mass Ejection Event

The Astrophysical Journal ◽

10.1086/383217 ◽

2004 ◽

Vol 607 (1) ◽

pp. 530-539 ◽

Cited By ~ 24

Author(s):

M. R. Kundu ◽

S. M. White ◽

V. I. Garaimov ◽

P. K. Manoharan ◽

P. Subramanian ◽

...

Keyword(s):

Coronal Mass Ejection ◽

Radio Observations ◽

Filament Eruption ◽

Mass Ejection ◽

Ejection Event

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Failed Filament Eruption Inside a Coronal Mass Ejection in Active Region 11121 (Postprint)

10.21236/ada589851 ◽

2013 ◽

Author(s):

D. Kuridze ◽

M. Mathioudakie ◽

A. F. Kowalski ◽

P. H. Keys ◽

D. B. Jess ◽

...

Keyword(s):

Active Region ◽

Coronal Mass Ejection ◽

Filament Eruption ◽

Mass Ejection

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A STUDY OF A FAILED CORONAL MASS EJECTION CORE ASSOCIATED WITH AN ASYMMETRIC FILAMENT ERUPTION

The Astrophysical Journal ◽

10.1088/0004-637x/771/1/65 ◽

2013 ◽

Vol 771 (1) ◽

pp. 65 ◽

Cited By ~ 17

Author(s):

Navin Chandra Joshi ◽

Abhishek K. Srivastava ◽

Boris Filippov ◽

Wahab Uddin ◽

Pradeep Kayshap ◽

...

Keyword(s):

Coronal Mass Ejection ◽

Filament Eruption ◽

Mass Ejection

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Probable detection of an eruptive filament from a superflare on a solar-type star

Nature Astronomy ◽

10.1038/s41550-021-01532-8 ◽

2021 ◽

Author(s):

Kosuke Namekata ◽

Hiroyuki Maehara ◽

Satoshi Honda ◽

Yuta Notsu ◽

Soshi Okamoto ◽

...

Keyword(s):

Coronal Mass Ejection ◽

Coronal Mass Ejections ◽

Spectroscopic Observation ◽

Type Star ◽

Filament Eruption ◽

Radiated Energy ◽

Solar Type ◽

Solar Filament ◽

Mass Ejection ◽

Solar Type Star

AbstractSolar flares are often accompanied by filament/prominence eruptions (~104 K and ~1010−11 cm−3), sometimes leading to coronal mass ejections that directly affect the Earth’s environment1,2. ‘Superflares’ are found on some active solar-type (G-type main-sequence) stars3–5, but the filament eruption–coronal mass ejection association has not been established. Here we show that our optical spectroscopic observation of the young solar-type star EK Draconis reveals evidence for a stellar filament eruption associated with a superflare. This superflare emitted a radiated energy of 2.0 × 1033 erg, and a blueshifted hydrogen absorption component with a high velocity of −510 km s−1 was observed shortly afterwards. The temporal changes in the spectra strongly resemble those of solar filament eruptions. Comparing this eruption with solar filament eruptions in terms of the length scale and velocity strongly suggests that a stellar coronal mass ejection occurred. The erupted filament mass of 1.1 × 1018 g is ten times larger than those of the largest solar coronal mass ejections. The massive filament eruption and an associated coronal mass ejection provide the opportunity to evaluate how they affect the environment of young exoplanets/the young Earth6 and stellar mass/angular momentum evolution7.

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