Results 11 to 20 of about 2,470 (205)
Source regions of the slow solar wind in coronal streamers [PDF]
Geophysical Research Letters, 2000 Recent SOHO/UVCS observations of the O5+ ion line emission at 1032Å in coronal streamers indicate that the emission is stronger by an order of magnitude at the edges (legs) of streamers than in the central core of streamers. In contrast, the brightness of the Ly‐α emission peaks in the core of streamers.
Leon Ofman
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Determination of three‐dimensional structure of coronal streamers and relationship to the solar magnetic field [PDF]
Journal of Geophysical Research: Space Physics, 2001 We have determined the location, in three dimensions, of eight quasi‐stable coronal “streamers” from an analysis of Solar and Heliospheric Observatory (SOHO) Large‐Angle and Spectrometric Coronagraph images acquired over approximately one solar rotation. We use the locations to attempt to determine the solar origin of the streamers.
P. C. Liewer +8 more
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Solar Stereoscopy and Tomography
Living Reviews in Solar Physics, 2011 We review stereoscopic and tomographic methods used in the solar corona, including ground-based and space-based measurements, using solar rotation or multiple spacecraft vantage points, in particular from the STEREO mission during 2007--2010 ...
Markus J. Aschwanden
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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.
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The Astrophysical Journal Supplement Series, 2023 In this paper, we employ a Harten–Lax–van Leer (HLL) generalized Riemann problem (HLL-GRP) solver within the framework of a finite volume method to model 3D solar coronal structures for the first time.
Mengqing Liu +3 more
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Structure and Dynamics of the 13/14 November 2012 Eclipse White-Light Corona [PDF]
, 2014 Continuing our series of observations of the motion and dynamics of the solar corona over the solar-activity cycle, we observed the corona from sites in Queensland, Australia, during the 13 (UT)/14 (local time) November 2012 total solar eclipse.
Babcock, Bryce A. +11 more
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The Width, Density, and Outflow of Solar Coronal Streamers
The Astrophysical Journal, 2020 Abstract Characterizing the large-scale structure and plasma properties of the inner corona is crucial to understanding the source and subsequent expansion of the solar wind and related space weather effects. Here, we apply a new coronal rotational tomography method, along with a method to narrow streamers and refine the density estimate,
Huw Morgan, Anthony C. Cook
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First Infrared Coronal Spectra from DKIST/Cryo-NIRSP: Comparisons with Global MHD Models
The Astrophysical Journal, 2023 The Cryogenic Near-Infrared Spectropolarimeter (Cryo-NIRSP) is now conducting science operations at the National Science Foundation’s Daniel K. Inouye Solar Telescope (DKIST).
Thomas A. Schad +6 more
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On the Lyman-alpha and Lyman-beta lines in solar coronal streamers [PDF]
Astronomy & Astrophysics, 2006 We investigate the formation of the H I Lyman-alpha and Lyman-beta lines in an equatorial coronal streamer. Particular attention is paid to frequency redistribution for the scattering of the incident radiation. The properties of the spectral lines are studied.
Labrosse, Nicolas, Li, Xing, Li, Bo
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Journal of Space Weather and Space Climate, 2021 We discuss the significant implications of three eye-witness drawings of the total solar eclipse on 1706 May 12 in comparison with two on 1715 May 3, for our understanding of space climate change.
Hayakawa Hisashi +5 more
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