Search Results - "Knizhnik, K."

The Role of Twist in Kinked Flux Rope Emergence and Delta-spot Formation by Knizhnik, K. J., Linton, M. G., DeVore, C. R.

“…It has been observationally well established that the magnetic configurations most favorable for producing energetic flaring events reside in δ-spots, a class…”
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THE ROLE OF MAGNETIC HELICITY IN STRUCTURING THE SOLAR CORONA by Knizhnik, K. J., Antiochos, S. K., DeVore, C. R.

“…ABSTRACT Two of the most widely observed and striking features of the Sun's magnetic field are coronal loops, which are smooth and laminar, and prominences or…”
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Global Effect of New Active Regions on Coronal Holes and Their Wind Streams by Wang, Y.-M., Knizhnik, K. J., Ugarte-Urra, I., Weberg, M. J.

“…Solar wind prediction algorithms and simulations of coronal events often employ photospheric field maps that are assembled over a 27 day solar rotation. This…”
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FILAMENT CHANNEL FORMATION VIA MAGNETIC HELICITY CONDENSATION by Knizhnik, K. J., Antiochos, S. K., DeVore, C. R.

“…ABSTRACT A major unexplained feature of the solar atmosphere is the accumulation of magnetic shear in the form of filament channels at photospheric polarity…”
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OBSERVATIONS AND IMPLICATIONS OF LARGE-AMPLITUDE LONGITUDINAL OSCILLATIONS IN A SOLAR FILAMENT by Luna, M, KNIZHNIK, K, Muglach, K, Karpen, J, Gilbert, H, Kucera, T A, URITSKY, V

“…On 2010 August 20, an energetic disturbance triggered large-amplitude longitudinal oscillations in a nearby filament. The triggering mechanism appears to be…”
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The Role of Magnetic Helicity in Coronal Heating by Knizhnik, K. J., Antiochos, S. K., Klimchuk, J. A., DeVore, C. R.

“…One of the greatest challenges in solar physics is understanding the heating of the Sun's corona. Most theories for coronal heating postulate that free energy…”
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Power-law Statistics of Driven Reconnection in the Magnetically Closed Corona by Knizhnik, K. J., Uritsky, V. M., Klimchuk, J. A., DeVore, C. R.

“…Numerous observations have revealed that power-law distributions are ubiquitous in energetic solar processes. Hard X-rays, soft X-rays, extreme ultraviolet…”
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PROPAGATING WAVES TRANSVERSE TO THE MAGNETIC FIELD IN A SOLAR PROMINENCE by Schmieder, B, Kucera, T A, KNIZHNIK, K, Luna, M, LOPEZ-ARISTE, A, Toot, D

“…We report an unusual set of observations of waves in a large prominence pillar that consist of pulses propagating perpendicular to the prominence magnetic…”
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Nanoflare Diagnostics from Magnetohydrodynamic Heating Profiles by Knizhnik, K. J., Barnes, W. T., Reep, J. W., Uritsky, V. M.

“…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…”
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The Rise and Emergence of Untwisted Toroidal Flux Ropes on the Sun by Knizhnik, K. J., Leake, J. E., Linton, M. G., Dacie, S.

“…Magnetic flux ropes (MFRs) rising buoyantly through the Sun’s convection zone are thought to be subject to viscous forces preventing them from rising…”
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NONLINEAR MHD WAVES IN A PROMINENCE FOOT by Ofman, L., Knizhnik, K., Kucera, T., Schmieder, B.

“…ABSTRACT We study nonlinear waves in a prominence foot using a 2.5D MHD model motivated by recent high-resolution observations with Hinode/Solar Optical…”
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Erratum: "The Role of Magnetic Helicity in Coronal Heating" (2019, ApJ, 883, 26) by Knizhnik, K. J., Antiochos, S. K., Klimchuk, J. A., DeVore, C. R.

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THE ROLE OF PRESSURE ANISOTROPY ON PARTICLE ACCELERATION DURING MAGNETIC RECONNECTION by Schoeffler, K M, Drake, J F, Swisdak, M, KNIZHNIK, K

“…Voyager spacecraft observations have revealed that contrary to expectations, the source of anomalous cosmic rays (ACRs) is not at the local termination shock…”
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THE ROLE OF PRESSURE ANISOTROPY ON PARTICLE ACCELERATION DURING MAGNETIC RECONNECTION by Schoeffler, K. M., Drake, J. F., Swisdak, M., Knizhnik, K.

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PROPAGATING WAVES TRANSVERSE TO THE MAGNETIC FIELD IN A SOLAR PROMINENCE by Schmieder, B., Kucera, T. A., Knizhnik, K., Luna, M., Lopez-Ariste, A., Toot, D.

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On the nature of the Zhamanshin crater (Northern Cis-Aralian Region) by Bykadorov, V. A., Gorkin, G. M., Antipov, M. P., Knizhnik, K. E.

“…Research subject. The Zhamanshin structure is located in the northern Aral Sea region and represents the outcrops of pre-Mesozoic rocks among Paleogene…”
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THE ACCELERATION OF IONS IN SOLAR FLARES DURING MAGNETIC RECONNECTION by KNIZHNIK, K, SWISDAK, M, DRAKE, J. F

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ERRATUM: “PROPAGATING WAVES TRANSVERSE TO THE MAGNETIC FIELD IN A SOLAR PROMINENCE” (2013, ApJ, 777, 108) by Schmieder, B., Kucera, T. A., Knizhnik, K., Luna, M., Lopez-Ariste, A., Toot, D.

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Characterizing the Umbral Magnetic Knots of $\delta$-Sunspots by Norton, A. A, Levens, P. J, Knizhnik, K. J, Linton, M. G, Liu, Y

“…Delta ($\delta$)-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…”
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Observational Study of Large Amplitude Longitudinal Oscillations in a Solar Filament by Knizhnik, K, Luna, M, Muglach, K, Gilbert, H, Kucera, T, Karpen, J

“…On 20 August 2010 an energetic disturbance triggered damped large-amplitude longitudinal (LAL) oscillations in almost an entire filament. In the present work…”
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