40 citations · 88 across the 7 of their papers we have counts for
8 papers
Observational Signatures of Coronal Heating in MHD Simulations Without Radiation or a Lower Atmosphere
James A. Klimchuk, Kalman J. Knizhnik, Vadim M. Uritsky
It is extremely difficult to simulate the details of coronal heating and also make meaningful predictions of the emitted radiation. Thus, testing realistic models with observations…
Characterizing the Umbral Magnetic Knots of -Sunspots
A. A. Norton, P. J. Levens, K. J. Knizhnik +2
Delta ()-spots are active regions (ARs) in which positive and negative umbrae share a penumbra. They are known to be the source of strong flares. We introduce a new quantity, th…
The Rise and Emergence of Untwisted Toroidal Flux Ropes on the Sun
Kalman J. Knizhnik, James E. Leake, Mark G. Linton +1
Magnetic flux ropes (MFRs) rising buoyantly through the Sun's convection zone are thought to be subject to viscous forces preventing them from rising coherently. Numerous studies h…
Nanoflare Diagnostics from Magnetohydrodynamic Heating Profiles
Kalman J. Knizhnik, Will T. Barnes, Jeffrey W. Reep +1
The nanoflare paradigm of coronal heating has proven extremely promising for explaining the presence of hot, multi-million degree loops in the solar corona. In this paradigm, local…
What determines the X-ray intensity and duration of a solar flare?
Jeffrey W. Reep, Kalman J. Knizhnik
Solar flares are observed and classified according to their intensity measured with the GOES X-ray Sensors. We show that the duration of a flare, as measured by the full width at h…
The Role of Twist in Kinked Flux Rope Emergence and Delta-Spot Formation
Kalman J. Knizhnik, Mark G. Linton, C. Richard DeVore
It has been observationally well established that the magnetic configurations most favorable for producing energetic flaring events reside in delta-spots, a class of sunspots defin…