Literatura académica sobre el tema "Coronal heating at small scales"
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Artículos de revistas sobre el tema "Coronal heating at small scales"
Buchlin, É. "Intermittent heating of the solar corona by MHD turbulence". Nonlinear Processes in Geophysics 14, n.º 5 (24 de octubre de 2007): 649–54. http://dx.doi.org/10.5194/npg-14-649-2007.
Texto completoZou, Jitong, Aohua Mao, Xiaogang Wang, Yangyang Hua y Tianchun Zhou. "Solar Coronal Heating Fueled by Random Bursts of Fine-scale Magnetic Reconnection in Turbulent Plasma Regions". Astrophysical Journal 943, n.º 2 (1 de febrero de 2023): 155. http://dx.doi.org/10.3847/1538-4357/acaec2.
Texto completoHowson, T. A., I. De Moortel y L. E. Fyfe. "The effects of driving time scales on heating in a coronal arcade". Astronomy & Astrophysics 643 (noviembre de 2020): A85. http://dx.doi.org/10.1051/0004-6361/202038869.
Texto completoVelli, M., F. Pucci, F. Rappazzo y A. Tenerani. "Models of coronal heating, turbulence and fast reconnection". Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 373, n.º 2042 (28 de mayo de 2015): 20140262. http://dx.doi.org/10.1098/rsta.2014.0262.
Texto completoHowson, Thomas. "How Transverse Waves Drive Turbulence in the Solar Corona". Symmetry 14, n.º 2 (15 de febrero de 2022): 384. http://dx.doi.org/10.3390/sym14020384.
Texto completoLu, Zekun, Feng Chen, J. H. Guo, M. D. Ding, Can Wang, Haocheng Yu, Y. W. Ni y Chun Xia. "Periodic Coronal Rain Driven by Self-consistent Heating Process in a Radiative Magnetohydrodynamic Simulation". Astrophysical Journal Letters 973, n.º 1 (1 de septiembre de 2024): L1. http://dx.doi.org/10.3847/2041-8213/ad73d2.
Texto completoPontin, D. I., E. R. Priest, L. P. Chitta y V. S. Titov. "Coronal Heating and Solar Wind Generation by Flux Cancellation Reconnection". Astrophysical Journal 960, n.º 1 (21 de diciembre de 2023): 51. http://dx.doi.org/10.3847/1538-4357/ad03eb.
Texto completoGómez, Daniel O. y Pablo Dmitruk. "Turbulent heating of coronal active regions". Proceedings of the International Astronomical Union 3, S247 (septiembre de 2007): 269–78. http://dx.doi.org/10.1017/s1743921308014968.
Texto completoHowson, T. A., I. De Moortel y J. Reid. "Phase mixing and wave heating in a complex coronal plasma". Astronomy & Astrophysics 636 (abril de 2020): A40. http://dx.doi.org/10.1051/0004-6361/201937332.
Texto completoIonson, James A. "A Unified Theory of Coronal Heating". Symposium - International Astronomical Union 107 (1985): 139–43. http://dx.doi.org/10.1017/s0074180900075574.
Texto completoTesis sobre el tema "Coronal heating at small scales"
Dolliou, Antoine. "L'impact de petits événements brillants UV-EUV sur le chauffage coronal du Soleil calme : analyse de données de Solar Orbiter et simulations hydrodynamiques de boucles magnétiques". Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASP112.
Texto completoThe Solar corona temperature is maintained at more than 1 MK. One of the main theories of the coronal formation (Parker, 1988) suggests that the magnetic energy is dissipated into the corona through a high number of impulsive, low energetic (1E24 ergs) heating events, called “nanoflares.” On 30 May 2020, during its first high temporal and spatial resolutions observations, 1463 small (400 - 4000 km) and short-lived (10-200 s) EUV brightenings, referred to as “events”, were detected in the Quiet Sun (QS) by the high-resolution UV imager HRIEUV (174 Angström), on board Solar Orbiter. I tested the possibility that they might be signatures of nanoflare heating.As HRIEUV is sensitive to continuous temperature coverage, in particular between 1 MK and 0.3 MK, my goal was to verify if these events do reach coronal temperatures and, thus, if they contribute directly to the coronal heating.For the 30 May 2020 dataset, only SDO/AIA data were available to perform temperature diagnostics. To do so, I applied the “time lags” method to the coronal channels of AIA. This method provides signatures on plasma cooling or heating above 1 MK, as most AIA channels have their sensitivity peak at these temperatures. I compared the statistics between the events and the rest of the QS and concluded that the events are characterized by short time lags below the AIA cadence of 12 s. These results were confirmed by extending the study to later datasets using a higher AIA cadence of 6s. I proposed two possible interpretations: (1) the events peak below 1 MK, where the AIA response functions behave similarly; (2) the events' cooling time scale is too short to be resolved by the AIA cadence. Spectroscopic observations are thus necessary to better constrain the temperature of these events.To complete this work, I used co-temporal 2022 and 2023 QS data from HRIEUV, AIA (imagers), from Solar Orbiter/SPICE and HINODE/EIS (spectroscopy). I first detected events in HRIEUV and identified them in SPICE or EIS and in AIA. Then, I extracted the light curves from spectral lines emitted in a wide range of temperatures and applied spectroscopic diagnostics to derive the density as a function of temperature. I concluded that the emission of these events mainly originates from plasma below 1 MK. As such, most of them hardly contribute directly to the coronal heating.In order to understand the physical properties driving these events, I reproduced their observational signatures using the HYDRAD 1D hydrodynamics code. To do so, I computed the synthetic light curves from different models of short loops submitted to impulsive heating by changing parameters such as the loop length or the heating strength. I looked for the models that best reproduce the observations, including the light curves co-temporal peak. The work compares the results for two different types of loops that have very distinct properties: “hot” (T > 1E5 K) and “cool” (T < 1E5 K) loops. The results showed that cool loops submitted to impulsive heating are good candidates to explain the origin of most of the events detected by HRIEUV.To conclude, most of these events are probably not the signature of coronal heating phenomena, unless their coronal emission is below the instrumental limitations. One consequence of this work would be to reconsider their role in heating the QS corona, as they might instead provide a major contribution to the heating of the cooler lower solar atmosphere
Joulin, Vincent. "Étude statistique et propriétés énergétiques des petits embrillancements dans la couronne solaire". Thesis, Paris 11, 2015. http://www.theses.fr/2015PA112102/document.
Texto completoTo explain the high temperature of the corona, much attention has been paid to the distribution of energy in dissipation events. Indeed, if the event energy distribution is steep enough, the smallest, unobservable events could be the largest contributors to the total energy dissipation in the corona. Previous observations have shown a wide distribution of energies but remain inconclusive about the precise slope. Furthermore, these results rely on a very crude estimate of the energy. On the other hand, more detailed spectroscopic studies of structures such as coronal bright points do not provide enough statistical information to derive their total contribution to heating. We aim at getting a better estimate of the distributions of the energy dissipated in coronal heating events using high-resolution, multi-channel Extreme Ultra-Violet (EUV) data. To estimate the energies corresponding to heating events and deduce their distribution, we detect brightenings in five EUV channels of the Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO). We combine the results of these detections and we use maps of temperature and emission measure derived from the same observations to compute the energies. We obtain distributions of areas, durations, intensities, and energies (thermal, radiative, and conductive) of events. These distributions are power-laws, but their parameters indicate that a population of events like the ones we observe is not sufficient to fully explain coronal temperatures. However, several processes or observational biases can be advanced to explain the missing energy
Capítulos de libros sobre el tema "Coronal heating at small scales"
Poedts, Stefaan. "On the Time Scales and the Efficiency of Solar Coronal Loop Heating by Resonant Absorption". En Mechanisms of Chromospheric and Coronal Heating, 486–88. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-87455-0_80.
Texto completoKaturji, Marwan, Bob Noonan, Jiawei Zhang, Andres Valencia, Benjamin Shumcher, Jessica Kerr, Tara Strand, Grant Pearce y Peyman Zawar-Reza. "Atmospheric turbulent structures during shrub fires and implications for flaming zone behavior". En Advances in Forest Fire Research 2022, 1397–407. Imprensa da Universidade de Coimbra, 2022. http://dx.doi.org/10.14195/978-989-26-2298-9_212.
Texto completoBlack, John H. "Excitation and Detectability of Molecules in Active Galactic Nuclei". En The Molecular Astrophysics of Stars and Galaxies, 469–88. Oxford University PressOxford, 1998. http://dx.doi.org/10.1093/oso/9780198501589.003.0021.
Texto completoGoody, R. M. y Y. L. Yung. "Band Models". En Atmospheric Radiation. Oxford University Press, 1989. http://dx.doi.org/10.1093/oso/9780195051346.003.0006.
Texto completoActas de conferencias sobre el tema "Coronal heating at small scales"
Podladchikova, O. "Role of driving scales in a model of coronal heating". En SOLAR WIND TEN: Proceedings of the Tenth International Solar Wind Conference. AIP, 2003. http://dx.doi.org/10.1063/1.1618601.
Texto completoKhan, Z. I., M. F. M. Zain, N. A. Z. Zakaria, N. E. A. Rashid, M. K. A. Mahmood y Z. Suboh. "Enhancing Water Treatment Residuals Characterization Through MNDT-Assisted Dielectric Properties Investigation via Oven Heating". En 2023 International Conference on Manipulation, Automation and Robotics at Small Scales (MARSS). IEEE, 2023. http://dx.doi.org/10.1109/marss58567.2023.10294131.
Texto completoXie, Dongcheng, Ruichen Liu, Yujie Yang, Feng Xue, Peng Wang, Wenjing Wang, Dongliang Chen, Feng Wu y Lei Xu. "From Ceramic Tube to Microcantilever: A New Strategy for Low Power, Fast Heating and High Integrated Metal Oxide Semiconductor Gas Sensor". En 2020 International Conference on Manipulation, Automation and Robotics at Small Scales (MARSS). IEEE, 2020. http://dx.doi.org/10.1109/marss49294.2020.9307895.
Texto completoPearce, John. "Simplified Medium Scale FEM Numerical Models of Magnetic Nanoparticle Heating: Study of Thermal Boundary Condition Effects". En ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14172.
Texto completoCornelius, Michael S. y Burl Donaldson. "Aluminum Particle Ignition Studies". En ASME 2012 Fluids Engineering Division Summer Meeting collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/fedsm2012-72424.
Texto completoKandra, Deepak, Tryfon Charalampopoulos y Ram Devireddy. "Numerical Investigation of a Novel Method to Vitrify Biological Tissues Using Pulsed Lasers and Cryogenic Temperatures". En ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ht-fed2004-56197.
Texto completoMartin, Michael James y Harish Manohara. "Thermo-Electric Modeling of Nanotube-Based Environmental Sensors". En ASME 2013 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/ipack2013-73053.
Texto completoGong, Xiangyang, Manohar Kulkarni y David E. Claridge. "A Case Study of Retrofitting a Demonstration Solar Energy Building". En ASME 2008 Power Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/power2008-60085.
Texto completoAzarifar, Mohammad y Nazli Donmezer. "A Roadmap for Building Thermal Models for AlGaN/GaN HEMTs: Simplifications and Beyond". En ASME 2016 Heat Transfer Summer Conference collocated with the ASME 2016 Fluids Engineering Division Summer Meeting and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/ht2016-7383.
Texto completoKingston, Todd A., Justin A. Weibel y Suresh V. Garimella. "Quantitative Visualization of Vapor Bubble Growth in Diabatic Vapor-Liquid Microchannel Slug Flow". En ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems collocated with the ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ipack2015-48177.
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