Results 91 to 100 of about 1,347 (224)

Global Coronal Magnetic Field Estimation Using Bayesian Inference

The Astrophysical Journal
Estimating the magnetic field strength in the solar corona is crucial for understanding different physical processes happening over diverse spatiotemporal scales.
Upasna Baweja, Vaibhav Pant, Iñigo Arregui   +2 more
doaj   +1 more source

New Identifications of Siviiiand SxLines in the Solar Coronal Spectrum Measured bySOHO/SUMER [PDF]

, 1999
Ilmar Kink, L. Engström, U. Feldman
openalex   +1 more source

Detection of a Magnetic Discontinuity in the Upper Solar Chromosphere Associated with a Coronal Loop Brightening Observed by CLASP2.1

The Astrophysical Journal
We report the first detection of a magnetic discontinuity in the upper solar chromosphere associated with a coronal loop brightening. Our findings are based on novel observations obtained by the Chromospheric LAyer SpectroPolarimeter (CLASP2.1 ...
Donguk Song, Ryohko Ishikawa, David E. McKenzie, Javier Trujillo Bueno, Frédéric Auchère, Ryouhei Kano, Amy Winebarger, Takenori J. Okamoto, Laurel A. Rachmeler, Ken Kobayashi, Genevieve D. Vigil, Adam R. Kobelski, Christian Bethge, Eun-Kyung Lim, Luca Belluzzi, Ernest Alsina Ballester, Tanausú del Pino Alemán, Jiří Štěpán   +17 more
doaj   +1 more source

Spectroscopic Studies of the Solar Corona I. Spatial Variations in Line Parameters of Green and Red Coronal Lines [PDF]

, 1999
Jagdev Singh, Kiyoshi Ichimoto, H. Imai, Takashi Sakurai, Aki Takeda   +4 more
openalex   +1 more source

Deciphering the Formation and Dynamics of Double-decker Filaments through Component Magnetic Reconnection

The Astrophysical Journal Letters
The formation of double-decker filaments has long been an enigma in the field of solar physics. Using stereoscopic observations from the Solar Dynamics Observatory and the Solar Terrestrial Relations Observatory, we show that the double-decker filament ...
Dongxu Liu, Yuandeng Shen, Yi Bi, Zehao Tang, Chengrui Zhou, Surui Yao   +5 more
doaj   +1 more source

Spectropolarimetric forward modelling of the lines of the Lyman-series using a self-consistent, global, solar coronal model [PDF]

, 2011
Abdur Rauf Khan, Luca Belluzzi, E. Landi Degl’Innocenti, Silvano Fineschi, M. Romoli   +4 more
openalex   +1 more source

Properties of solar coronal active regions deduced from X-ray line spectra

The Astrophysical Journal, 1987
Abstract : Coronal active regions, the sites of energetic solar flares, have temperatures higher than 10 K and emit strongly in the X-ray region of the spectrum. In this report X-ray emission line-ratio diagnostics for electron density and temperature are applied to over 100 spectra of nonflaring active regions taken by the SOLEX B spectrometer aboard ...
openaire   +1 more source

A New Field Line Tracer for the Study of Coronal Magnetic Topologies

The Astrophysical Journal
We present a new code for the tracing of magnetic field lines and calculation of related quantities such as the squashing factor in the solar corona.
Valentin Aslanyan, Roger B. Scott, Chloe P. Wilkins, Karen A. Meyer, David I. Pontin, Anthony R. Yeates   +5 more
doaj   +1 more source

Mixed Source Region Signatures inside Magnetic Switchback Patches Inferred by Heavy Ion Diagnostics

The Astrophysical Journal
Since Parker Solar Probe’s (Parker’s) first perihelion pass at the Sun, large-amplitude Alfvén waves grouped in patches have been observed near the Sun throughout the mission.
Yeimy J. Rivera, Samuel T. Badman, Michael L. Stevens, Jim M. Raines, Christopher J. Owen, Kristoff Paulson, Tatiana Niembro, Stefano A. Livi, Susan T. Lepri, Enrico Landi, Jasper S. Halekas, Tamar Ervin, Ryan M. Dewey, Jesse T. Coburn, Stuart D. Bale, B. L. Alterman   +15 more
doaj   +1 more source

An Assessment of Magnetic Conditions for Strong Coronal Heating in Solar Active Regions by Comparing Observed Loops with Computed Potential Field Lines [PDF]

, 2000
D. A. Falconer, G. A. Gary, Ronald L. Moore, J. G. Porter   +3 more
openalex   +1 more source