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Magnetic Field-Vector Measurements in Quiescent Prominences via the Hanle Effect: Analysis of Prominences Observed at Pic-Du-Midi and at Sacramento Peak [PDF]

, 1983
The Hanle effect method for magnetic field vector diagnostics has now provided results on the magnetic field strength and direction in quiescent prominences, from linear polarization measurements in the He I E sub 3 line, performed at the Pic-du-Midi and
Bommier, V., Leroy, J. L., Sahal-Brechot, S.   +2 more
core   +1 more source

Simulating the Ring-shaped Line-of-sight Flows in Prominence-cavity Systems

The Astrophysical Journal
Line-of-sight oriented flows with several red and blue Doppler-shifted rings in coronal cavities have been observed by the Coronal Multi-channel Polarimeter (CoMP) but rarely explained.
Tie Liu, Yang Guo, Yingna Su, Jinhan Guo, Yiwei Ni, Ye Qiu, Jie Zhao, Chuan Li, Haisheng Ji, Pengfei Chen, Mingde Ding   +10 more
doaj   +1 more source

Formation of Jet-driven Forced Reconnection Region and Associated Plasma Blobs in a Prominence Segment

The Astrophysical Journal
We use data from the Atmospheric Imaging Assembly on board the Solar Dynamics Observatory to study the most likely formation of a forced reconnection region and associated plasma blobs, triggered by jetlike structures in a prominence segment.
Sudheer K. Mishra, A. K. Srivastava, S. P. Rajaguru, P. Jelínek   +3 more
doaj   +1 more source

Deep-learning-based Identification of Solar Magnetic Tornadoes and Their Spatial Properties during Solar Minimum and Maximum

The Astrophysical Journal
Solar magnetic tornadoes are dynamic, spiral-shaped plasma structures characterized by helical magnetic fields and rotating plasma flows in the solar atmosphere.
Mark I. Blumenau, Olga Khabarova, Ilia S. Nikitin, Dmitrii L. Vorobev   +3 more
doaj   +1 more source

Multispacecraft Observations of 2022 February 8 Prominence Cavity Eruption

The Astrophysical Journal
Helmet streamers are common structures that shape the corona at the largest scales, as observed in eclipse and white-light images. Helmet streamers overlie one cavity embedding a prominence channel and are surrounded by an open field of opposite-polarity
Nishu Karna, Mari Paz Miralles
doaj   +1 more source

Spectral Diagnostics of Active Prominences

, 2007
Active prominences exhibit plasma motions, resulting in difficulties with the interpretation of spectroscopic observations. These solar features being strongly influenced by the radiation coming from the solar disk, Doppler dimming or brightening effects
Gouttebroze, Pierre, Labrosse, Nicolas, Vial, Jean-Claude   +2 more
core  

The evolution of the solar wind. [PDF]

Living Rev Sol Phys, 2021
Vidotto AA.
europepmc   +1 more source

Solar Prominences, 1916 [PDF]

Monthly Notices of the Royal Astronomical Society, 1917
openaire   +1 more source

Probing the CME Core–Prominence Relation Using Observations of the Inner Corona

The Astrophysical Journal
Coronal mass ejections (CMEs) often exhibit a three-part structure consisting of a bright inner core, an outer leading edge, and an intervening dark cavity.
Sunit Sundar Pradhan, Jayant Joshi, Tanmoy Samanta   +2 more
doaj   +1 more source

Solar Prominences, 1917 [PDF]

Monthly Notices of the Royal Astronomical Society, 1918
openaire   +1 more source