Results 41 to 50 of about 150 (116)

The 2023 Australian Total Solar Eclipse: Line Emission of Fe XIV, Fe X, and Fe XI out to 6 Solar Radii

The Astrophysical Journal
We present narrowband observations of the Fe xiv (530.3 nm), Fe x (637.4 nm), and Fe xi (789.2 nm) coronal emission lines from the 2023 April 20 Total Solar Eclipse in Australia.
Benjamin Boe, Shadia Habbal, Miloslav Druckmüller, Pavel Štarha, Matěj Štarha, Jana Hoderová, Sage Constantinou, Eric Ayars, Daniell Casillas   +8 more
doaj   +1 more source

The SWAP Filter: A Simple Azimuthally Varying Radial Filter for Wide-Field EUV Solar Images. [PDF]

Sol Phys, 2023
Seaton DB, Berghmans D, Bloomfield DS, De Groof A, D'Huys E, Nicula B, Rachmeler LA, West MJ.   +7 more
europepmc   +1 more source

Uncovering the Dominant Spatial Scales of the Sun’s Magnetic Field in Solar Cycle 24

The Astrophysical Journal
The internal dynamics of the Sun generate magnetic and plasma structures in the photosphere and overlying atmosphere across a wide range of spatial scales. Identifying the critical spatial scale is essential for interpreting physical processes, selecting
Ananya Hore, Prantika Bhowmik
doaj   +1 more source

Comparing and Contrasting the Properties of the Inner Heliosphere for the Three Most Recent Solar Minima. [PDF]

J Geophys Res Space Phys, 2022
Riley P, Caplan RM, Downs C, Linker JA, Lionello R.   +4 more
europepmc   +1 more source

Bifurcations in the Heliosphere: Global-scale Coronal Pseudostreamer Evolution and the Creation of Secondary Heliospheric Current Sheets

The Astrophysical Journal
The heliospheric current sheet (HCS) is the boundary between open magnetic fields of opposite polarity in the solar wind that connect back to their respective open-flux regions in the corona.
Lizet Casillas, Benjamin J. Lynch, Victor Réville, Olga Panasenco, Marco Velli   +4 more
doaj   +1 more source

Five Solar Cycles of Solar Corona Investigations. [PDF]

Sol Phys, 2022
Antonucci E.
europepmc   +1 more source

Data-constrained Magnetohydrodynamic Simulation of the Global Solar Corona Including Solar Wind Effects within 2.5 R⊙

The Astrophysical Journal
Total solar eclipses (TSEs) provide a unique opportunity to observe the large-scale solar corona. The solar wind plays an important role in forming the large-scale coronal structure, and magnetohydrodynamic (MHD) simulations are used to reproduce it for ...
Yihua Li, Guoyin Chen, Jinhan Guo, Yang Guo, Hao Wu, Yuhao Huang, Xin Cheng, M. D. Ding, Rony Keppens   +8 more
doaj   +1 more source

Comprehensive study of solar type II radio bursts and the properties of the associated shock waves

Astronomy & Astrophysics
Context. Type II radio bursts are solar radio emissions generated by electrons accelerated by coronal shocks. These bursts are typically found close to expanding coronal mass ejections (CMEs), making them valuable for studying the properties and dynamics
Bhandari K., Morosan D. E., Normo S.
doaj   +1 more source

Inertial-range Turbulence Anisotropy of the Young Solar Wind from Different Source Regions

The Astrophysical Journal Letters
We investigate the wavevector and variance anisotropies in the inertial range of the young solar wind observed by the Parker Solar Probe (PSP). Using the first 19 encounters of PSP measurements, we identify the young solar wind from different source ...
Wenshuai Cheng, Ming Xiong, Yiming Jiao, Hao Ran, Liping Yang, Huidong Hu, Rui Wang   +6 more
doaj   +1 more source

On the Acceleration of the Young Solar Wind from Different Source Regions

The Astrophysical Journal Letters
The acceleration of the young solar wind is studied using the first 17 encounters of the Parker Solar Probe. We identify wind intervals from different source regions: coronal hole (CH) interiors, streamers, and low-Mach-number boundary layers (LMBLs), i ...
Yiming Jiao, Ying D. Liu, Wenshuai Cheng, Hao Ran, Rui Wang   +4 more
doaj   +1 more source