133 citations · 568 across the 13 of their papers we have counts for
13 papers
Coronal hole picoflare jets are progenitors of both fast and Alfvénic slow solar wind
L. P. Chitta, Z. Huang, R. D'Amicis +19
Solar wind, classified by its bulk speed and the Alfvénic nature of its fluctuations, generates the heliosphere. The elusive physical processes responsible for the generation of th…
Undetected Minority-polarity Flux as the Missing Link in Coronal Heating
Y. -M. Wang
During the last few decades, the most widely favored models for coronal heating have involved the in situ dissipation of energy, with footpoint shuffling giving rise to multiple cu…
Magnetograph Saturation and the Open Flux Problem
Y. -M. Wang, R. K. Ulrich, J. W. Harvey
Extrapolations of line-of-sight photospheric field measurements predict radial interplanetary magnetic field (IMF) strengths that are factors of ~2--4 too low. To address this "ope…
Coronal Mass Ejections and the Solar Cycle Variation of the Sun's Open Flux
Y. -M. Wang, N. R. Sheeley
The strength of the radial component of the interplanetary magnetic field (IMF), which is a measure of the Sun's total open flux, is observed to vary by roughly a factor of two ove…
Further Evidence for Looplike Fine Structure inside "Unipolar" Active Region Plages
Y. -M. Wang, I. Ugarte-Urra, J. W. Reep
Earlier studies using extreme-ultraviolet images and line-of-sight magnetograms from the Solar Dynamics Observatory (SDO) have suggested that active region (AR) plages and strong n…
Observations of Slow Solar Wind from Equatorial Coronal Holes
Y. -M. Wang, Y. -K. Ko
Because of its distinctive compositional properties and variability, low-speed ( km s) solar wind is widely believed to originate from coronal streamers, unlik…
Small-scale Flux Emergence, Coronal Hole Heating, and Flux-tube Expansion: A Hybrid Solar Wind Model
Y. -M. Wang
Extreme-ultraviolet images from the Solar Dynamics Observatory often show looplike fine structure to be present where no minority-polarity flux is visible in magnetograms, suggesti…
Formation of a Double-decker Magnetic Flux Rope in the Sigmoidal Solar Active Region 11520
X. Cheng, M. D. Ding, J. Zhang +5
In this paper, we address the formation of a magnetic flux rope (MFR) that erupted on 2012 July 12 and caused a strong geomagnetic storm event on July 15. Through analyzing the lon…
The Evolution of Dark Canopies Around Active Regions
Y. -M. Wang, E. Robbrecht, K. Muglach
As observed in spectral lines originating from the chromosphere, transition region, and low corona, active regions are surrounded by an extensive "circumfacular" area which is dark…
Evidence For Mixed Helicity in Erupting Filaments
K. Muglach, Y. -M. Wang, B. Kliem
Erupting filaments are sometimes observed to undergo a rotation about the vertical direction as they rise. This rotation of the filament axis is generally interpreted as a conversi…
What is the Nature of EUV Waves? First STEREO 3D Observations and Comparison with Theoretical Models
S. Patsourakos, A. Vourlidas, Y. -M. Wang +2
One of the major discoveries of the Extreme ultraviolet Imaging Telescope (EIT) on SOHO were intensity enhancements propagating over a large fraction of the solar surface. The phys…
Instability of P-waves just below the transition region in a global solar wind simulation
R. Grappin, J. Léorat, R. Pinto +1
We investigate how wave propagation is modified by the presence of heat sources and sinks, in the simple 1D, hydrodynamical case, including chromosphere and solar wind. We integrat…
Periodicities in Solar Coronal Mass Ejections
Y. -Q. Lou, Y. -M. Wang, Z. Fan +2
Mid-term quasi-periodicities in solar coronal mass ejections (CMEs) during the most recent solar maximum cycle 23 are reported here for the first time using the four-year data (Feb…