Results 101 to 110 of about 2,470 (205)

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

Imaging the Solar Corona from “Within”: A Cutting-edge Approach to Enhance PSP/WISPR Imagery

The Astrophysical Journal Supplement Series
The unprecedented remote-sensing observations obtained by the Wide Field Imager for Solar Probe (WISPR) on board the Parker Solar Probe (PSP) from distances inside Mercury’s orbit are revolutionizing our perception of the fine-scale morphology and ...
Guillermo Stenborg, Angelos Vourlidas, Russell A. Howard   +2 more
doaj   +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

Helmet and active streamers from radio observations [PDF]

Large coronal regions disconnected from any calcium plages and identified by their thermal emission at 169 mHz play a basic role in the sector structure of the interplanetary medium.
Avignon, Y., Axisa, F., Martres, M. J., Pick, M., Simon, P.   +4 more
core   +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

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

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