Zobrazeno 1 - 10
of 273
pro vyhledávání: '"K Antiochos"'
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 168 (2024)
Coronal mass ejections (CMEs) from pseudostreamers represent a significant fraction of large-scale eruptions from the Sun. In some cases, these CMEs take a narrow jet-like form reminiscent of coronal jets; in others, they have a much broader fan-shap
Externí odkaz:
https://doaj.org/article/80e9809bd41f49d983e3b40ec847957e
Publikováno v:
The Astrophysical Journal, Vol 973, Iss 2, p 74 (2024)
Magnetic reconnection is widely believed to be the fundamental process in the solar atmosphere that underlies magnetic energy release and particle acceleration. This process is responsible for the onset of solar flares, coronal mass ejections, and ot
Externí odkaz:
https://doaj.org/article/5c71a8d9cb12410a9f45f43ad7c95a09
Autor:
Ruoyu Wang, David F. Fouhey, Richard E. L. Higgins, Spiro K. Antiochos, Graham Barnes, J. Todd Hoeksema, K. D. Leka, Yang Liu, Peter W. Schuck, Tamas I. Gombosi
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 2, p 168 (2024)
Vector magnetograms of the Sun’s photosphere are cornerstones for much of solar physics research. These data are often produced by data-analysis pipelines combining per-pixel Stokes polarization vector inversion with a disambiguation that resolves
Externí odkaz:
https://doaj.org/article/5f136cbe855a46b7986b1f514f70a5d8
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 27 (2024)
The magnetic topology of erupting regions on the Sun is a key factor in the energy buildup and release, and the subsequent evolution of flares and coronal mass ejections (CMEs). The presence/absence of null points and separatrices dictates whether an
Externí odkaz:
https://doaj.org/article/703921f512da4e37a0b70c021d13330c
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 2, p 115 (2024)
The solar magnetic fields emerging from the photosphere into the chromosphere and corona are comprised of a combination of closed (field lines with both ends rooted at the Sun) and open (field lines with only one end at the Sun) fields. Since the ear
Externí odkaz:
https://doaj.org/article/b1ba8a3ac5894c1fa04854c35d97b583
Autor:
Pankaj Kumar, Judith T. Karpen, Vadim M. Uritsky, Craig E. Deforest, Nour E. Raouafi, C. Richard DeVore, Spiro K. Antiochos
Publikováno v:
The Astrophysical Journal Letters, Vol 951, Iss 1, p L15 (2023)
Microstreams are fluctuations in the solar wind speed and density associated with polarity-reversing folds in the magnetic field (also denoted switchbacks). Despite their long heritage, the origin of these microstreams/switchbacks remains poorly unde
Externí odkaz:
https://doaj.org/article/979cd62363c54f079e7e01c9a8d87da3
Autor:
J. Qiu, M. Alaoui, S. K. Antiochos, J. T. Dahlin, M. Swisdak, J. F. Drake, A. Robison, C. R. DeVore, V. M. Uritsky
Publikováno v:
The Astrophysical Journal, Vol 955, Iss 1, p 34 (2023)
Using observations from the Solar Dynamics Observatory’s Atmosphere Imaging Assembly and the Ramaty High Energy Solar Spectroscopic Imager, we present novel measurements of the shear of post-reconnection flare loops (PRFLs) in SOL20141218T21:40 and
Externí odkaz:
https://doaj.org/article/56bd6bb042ab42948819a9c060be5bff
Publikováno v:
The Astrophysical Journal, Vol 943, Iss 2, p 120 (2023)
The transition region between the Sun’s corona and chromosphere is important to the mass and energy transfer from the lower atmosphere to the corona; consequently, this region has been studied intensely with ultraviolet and extreme ultraviolet (EUV
Externí odkaz:
https://doaj.org/article/cda421e9a507471e8770457ac5c76bf0
Publikováno v:
The Astrophysical Journal, Vol 943, Iss 2, p 84 (2023)
We present numerical models from the field-aligned HYDrodynamics and RADiation code (HYDRAD) of a highly asymmetric closed coronal loop with near-singular expansion factor. This loop was chosen to simulate a coronal magnetic flux tube that passes clo
Externí odkaz:
https://doaj.org/article/13d00d2861a44245b535dcb1512e9224
Autor:
Pankaj Kumar, Judith T. Karpen, Spiro K. Antiochos, C. Richard DeVore, Peter F. Wyper, Kyung-Suk Cho
Publikováno v:
The Astrophysical Journal, Vol 943, Iss 2, p 156 (2023)
We report a detailed analysis of a failed eruption and flare in active region 12018 on 2014 April 3 using multiwavelength observations from the Solar Dynamics Observatory/Atmospheric Imaging Assembly, IRIS, STEREO, and Hinode/Solar Optical Telescope.
Externí odkaz:
https://doaj.org/article/64112eeb916043da9425acbb402e86d8