Search Results - "Nita, Gelu M."

Decay of the coronal magnetic field can release sufficient energy to power a solar flare by Fleishman, Gregory D, Gary, Dale E, Chen, Bin, Kuroda, Natsuha, Yu, Sijie, Nita, Gelu M

“…Solar flares are powered by a rapid release of energy in the solar corona, thought to be produced by the decay of the coronal magnetic field strength. Direct…”
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Solar flare accelerates nearly all electrons in a large coronal volume by Fleishman, Gregory D., Nita, Gelu M., Chen, Bin, Yu, Sijie, Gary, Dale E.

“…Solar flares, driven by prompt release of free magnetic energy in the solar corona 1 , 2 , are known to accelerate a substantial portion (ten per cent or more)…”
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Microwave and Hard X-Ray Observations of the 2017 September 10 Solar Limb Flare by Gary, Dale E., Chen, Bin, Dennis, Brian R., Fleishman, Gregory D., Hurford, Gordon J., Krucker, Säm, McTiernan, James M., Nita, Gelu M., Shih, Albert Y., White, Stephen M., Yu, Sijie

“…We report the first science results from the newly completed Expanded Owens Valley Solar Array (EOVSA), which obtained excellent microwave (MW) imaging…”
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Magnetic Reconnection during the Post-impulsive Phase of a Long-duration Solar Flare: Bidirectional Outflows as a Cause of Microwave and X-Ray Bursts by Yu, Sijie, Chen, Bin, Reeves, Katharine K., Gary, Dale E., Musset, Sophie, Fleishman, Gregory D., Nita, Gelu M., Glesener, Lindsay

“…Magnetic reconnection plays a crucial role in powering solar flares, production of energetic particles, and plasma heating. However, where the magnetic…”
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Data-constrained 3D Modeling of a Solar Flare Evolution: Acceleration, Transport, Heating, and Energy Budget by Fleishman, Gregory D., Nita, Gelu M., Motorina, Galina G.

“…Abstract Solar flares are driven by the release of free magnetic energy and its conversion to other forms of energy—kinetic, thermal, and nonthermal…”
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Measurement of magnetic field and relativistic electrons along a solar flare current sheet by Chen, Bin, Shen, Chengcai, Gary, Dale E., Reeves, Katharine K., Fleishman, Gregory D., Yu, Sijie, Guo, Fan, Krucker, Säm, Lin, Jun, Nita, Gelu M., Kong, Xiangliang

“…In the standard model of solar flares, a large-scale reconnection current sheet is postulated to be the central engine for powering the flare energy release 1…”
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THREE-DIMENSIONAL RADIO AND X-RAY MODELING AND DATA ANALYSIS SOFTWARE: REVEALING FLARE COMPLEXITY by Nita, Gelu M, Fleishman, Gregory D, Kuznetsov, Alexey A, Kontar, Eduard P, Gary, Dale E

“…Many problems in solar physics require analysis of imaging data obtained in multiple wavelength domains with differing spatial resolution in a framework…”
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Three-dimensional Forward-fit Modeling of the Hard X-Ray and Microwave Emissions of the 2015 June 22 M6.5 Flare by Kuroda, Natsuha, Gary, Dale E., Wang, Haimin, Fleishman, Gregory D., Nita, Gelu M., Jing, Ju

“…The well-established notion of a "common population" of the accelerated electrons simultaneously producing the hard X-ray (HXR) and microwave (MW) emission…”
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Data-constrained Solar Modeling with GX Simulator by Nita, Gelu M., Fleishman, Gregory D., Kuznetsov, Alexey A., Anfinogentov, Sergey A., Stupishin, Alexey G., Kontar, Eduard P., Schonfeld, Samuel J., Klimchuk, James A., Gary, Dale E.

“…To facilitate the study of solarflares and active regions, we have created a modeling framework, the freelydistributed GX Simulator IDL package, that combines…”
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Time Series of Magnetic Field Parameters of Merged MDI and HMI Space-weather Active Region Patches as Potential Tool for Solar Flare Forecasting by Kosovich, Paul A., Kosovichev, Alexander G., Sadykov, Viacheslav M., Kasapis, Spiridon, Kitiashvili, Irina N., O’Keefe, Patrick M., Ali, Aatiya, Oria, Vincent, Granovsky, Samuel, Chong, Chun Jie, Nita, Gelu M.

“…Abstract Solar flare prediction studies have been recently conducted with the use of Space-Weather MDI (Michelson Doppler Imager on board Solar and…”
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Statistical Study of the Correlation between Solar Energetic Particles and Properties of Active Regions by Marroquin, Russell D., Sadykov, Viacheslav, Kosovichev, Alexander, Kitiashvili, Irina N., Oria, Vincent, Nita, Gelu M., Illarionov, Egor, O’Keefe, Patrick M., Francis, Fraila, Chong, Chun Jie, Kosovich, Paul, Ali, Aatiya

“…Abstract The flux of energetic particles originating from the Sun fluctuates during the solar cycles. It depends on the number and properties of active regions…”
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Predicting Solar Proton Events of Solar Cycles 22–24 Using GOES Proton and Soft-X-Ray Flux Features by Ali, Aatiya, Sadykov, Viacheslav, Kosovichev, Alexander, Kitiashvili, Irina N., Oria, Vincent, Nita, Gelu M., Illarionov, Egor, O’Keefe, Patrick M., Francis, Fraila, Chong, Chun-Jie, Kosovich, Paul, Marroquin, Russell D.

“…Abstract Solar energetic particle (SEP) events and their major subclass, solar proton events (SPEs), can have unfavorable consequences on numerous aspects of…”
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NARROWBAND GYROSYNCHROTRON BURSTS: PROBING ELECTRON ACCELERATION IN SOLAR FLARES by Fleishman, Gregory D., Nita, Gelu M., Kontar, Eduard P., Gary, Dale E.

“…ABSTRACT Recently, in a few case studies we demonstrated that gyrosynchrotron microwave emission can be detected directly from the acceleration region when the…”
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Revealing the Evolution of Non-thermal Electrons in Solar Flares Using 3D Modeling by Fleishman, Gregory D., Nita, Gelu M., Kuroda, Natsuha, Jia, Sabina, Tong, Kevin, Wen, Richard R., Zhizhuo, Zhou

“…Understanding non-thermal particle generation, transport, and escape in solar flares requires detailed quantification of the particle evolution in the…”
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Radio Frequency Interference Excision Using Spectral‐Domain Statistics by Nita, Gelu M., Gary, Dale E., Liu, Zhiwei, Hurford, Gordon J., White, Stephen M.

“…A radio frequency interference (RFI) excision algorithm based on spectral kurtosis, a spectral variant of time‐domain kurtosis, is proposed and implemented in…”
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Energy Budget of Plasma Motions, Heating, and Electron Acceleration in a Three-loop Solar Flare by Fleishman, Gregory D., Kleint, Lucia, Motorina, Galina G., Nita, Gelu M., Kontar, Eduard P.

“…Abstract Nonpotential magnetic energy promptly released in solar flares is converted to other forms of energy. This may include nonthermal energy of…”
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Understanding the Initiation of the M2.4 Flare on 2017 July 14 by Jing, Ju, Inoue, Satoshi, Lee, Jeongwoo, Li, Qin, Nita, Gelu M., Xu, Yan, Liu, Chang, Gary, Dale E., Wang, Haimin

“…Abstract We present both the observation and the magnetohydrodynamics (MHD) simulation of the M2.4 flare (SOL2017-07-14T02:09) of NOAA active region (AR) 12665…”
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A Large-scale Plume in an X-class Solar Flare by Fleishman, Gregory D., Nita, Gelu M., Gary, Dale E.

“…Ever-increasing multi-frequency imaging of solar observations suggests that solar flares often involve more than one magnetic fluxtube. Some of the fluxtubes…”
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The Peak Flux Distribution of Solar Radio Bursts by Nita, Gelu M, Gary, Dale E, Lanzerotti, L. J, Thomson, D. J

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Coronal Heating Law Constrained by Microwave Gyroresonant Emission by Fleishman, Gregory D., Anfinogentov, Sergey A., Stupishin, Alexey G., Kuznetsov, Alexey A., Nita, Gelu M.

“…Abstract The question why the solar corona is much hotter than the visible solar surface still puzzles solar researchers. Most theories of the coronal heating…”
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