Results 1 to 10 of about 205 (182)

Defining the Middle Corona. [PDF]

Sol Phys, 2023
West MJ, Seaton DB, Wexler DB, Raymond JC, Del Zanna G, Rivera YJ, Kobelski AR, Chen B, DeForest C, Golub L, Caspi A, Gilly CR, Kooi JE, Meyer KA, Alterman BL, Alzate N, Andretta V, Auchère F, Banerjee D, Berghmans D, Chamberlin P, Chitta LP, Downs C, Giordano S, Harra L, Higginson A, Howard RA, Kumar P, Mason E, Mason JP, Morton RJ, Nykyri K, Patel R, Rachmeler L, Reardon KP, Reeves KK, Savage S, Thompson BJ, Van Kooten SJ, Viall NM, Vourlidas A, Zhukov AN.   +41 more
europepmc   +1 more source

Synthetic Remote-sensing and In Situ Observations of Fine-scale Structure in a Pseudostreamer Coronal Mass Ejection through the Solar Corona

The Astrophysical Journal Supplement Series
Coronal pseudostreamer flux systems have a specific magnetic configuration that influences the morphology and evolution of coronal mass ejections (CMEs) from these regions. Here we continue the analysis of the Wyper et al.
B. J. Lynch, P. F. Wyper, E. Palmerio, L. Casillas, J. T. Dahlin, L. K. S. Daldorff, S. E. Guidoni, A. K. Higginson, P. Kumar, A. Liberatore, P. C. Liewer, O. Panasenco, P. Penteado, M. Velli   +13 more
doaj   +1 more source

Combined coronal observations of the streamer belt with Metis and EUI instruments on Solar Orbiter

Astronomy & Astrophysics
Context. Comprehensive solar observations from the limb to the extended corona are essential to study the main processes that connect coronal sources of outflows with the heliosphere. In particular, inferring the temperature structure of the solar corona is important to constrain coronal models and to ...
L. Abbo, R. Susino, S. Parenti, F. Auchère, V. Andretta, D. Spadaro, M. Romoli, S. Fineschi, R. Lionello, S. Giordano, V. Da Deppo, C. Grimani, P. Heinzel, G. Naletto, G. Nicolini, M. Stangalini, L. Teriaca, M. Uslenghi, Y. De Leo, F. Landini, G. Jerse, M. Pancrazzi, C. Sasso   +22 more
openaire   +2 more sources

Empirically Determined Anisotropic Velocity Distributions and Outflows of O⁵⁺Ions in a Coronal Streamer at Solar Minimum

The Astrophysical Journal, 2003
Empirical constraints on the O5+ velocity distributions and outflow speeds in a solar minimum equatorial streamer between 2.6 and 5.1 R☉ are determined using a spectral synthesis code that includes O VI Doppler dimming. These constraints follow directly from UV spectra taken on 1996 October 12 with the Ultraviolet Coronagraph Spectrometer (UVCS) on the
R. A. Frazin, S. R. Cranmer, J. L. Kohl
openaire   +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

Coronal mass ejections and streamers associated with the new cycle active regions at solar minimum

The Astrophysical Journal, 1991
We use data from the coronagraph/polarimeter on the SMM spacecraft to examine the coronal streamers and coronal mass ejections (CMEs) associated with the appearance of the high-latitude, new-cycle active regions at the beginning of solar cycle 22 in 1986 and 1987.
openaire   +1 more source

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

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

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

Five Solar Cycles of Solar Corona Investigations. [PDF]

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