Frequently Occurring Reconnection Jets from Sunspot Light Bridges
作者： Hui Tian , Vasyl Yurchyshyn , Hardi Peter , Sami K. Solanki , Peter R. Young
关键词:
摘要: Solid evidence of magnetic reconnection is rarely reported within sunspots, the darkest regions with strongest fields and lowest temperatures in solar atmosphere. Using world's largest telescope, 1.6-meter Goode Solar Telescope, we detect prevalent through frequently occurring fine-scale jets H${\alpha}$ line wings at light bridges, bright lanes that may divide dark sunspot core into multiple parts. Many have an inverted Y-shape, shown by models to be typical a unipolar field environment. Simultaneous spectral imaging data from Interface Region Imaging Spectrograph show drives bidirectional flows up 200~km~s$^{-1}$, weakly ionized plasma heated least order magnitude $\sim$80,000 K. Such highly dynamic efficient heating should properly accounted for future modeling efforts sunspots. Our observations also reveal surge-like activity previously above bridges some chromospheric passbands such as has two components: ever-present short surges likely related upward leakage magnetoacoustic waves photosphere, occasionally long fast are obviously caused intermittent jets.
core.ac.uk
arxiv.org
sci-hub.se 参考文章(157)
Kazunari Shibata, Takara Nishikawa, Reizaburo Kitai, Yoshinori Suematsu, Numerical hydrodynamics of the jet phenomena in the solar atmosphere Solar Physics. ,vol. 75, pp. 121- 151 ,(1982) , 10.1007/BF00156100
Alphonse C. Sterling, Ronald L. Moore, David A. Falconer, Mitzi Adams, Small-scale filament eruptions as the driver of X-ray jets in solar coronal holes Nature. ,vol. 523, pp. 437- 440 ,(2015) , 10.1038/NATURE14556
Bart De Pontieu, Robert J. Rutten, Luc H. M. Rouppe van der Voort, Mats Carlsson, Gregal J. M. Vissers, Ellerman bombs at high resolution III. Simultaneous observations with IRIS and SST arXiv: Solar and Stellar Astrophysics. ,(2015) , 10.1088/0004-637X/812/1/11
Eric Priest, Terry Forbes, Magnetic Reconnection: MHD Theory and Applications ,(2000)
Fernando Moreno-Insertis, Klaus Galsgaard, Plasma Jets and Eruptions in Solar Coronal Holes: a 3D flux emergence experiment arXiv: Solar and Stellar Astrophysics. ,(2013) , 10.1088/0004-637X/771/1/20
Jongchul Chae, Haimin Wang, Chik-Yin Lee, Philip R. Goode, Udo Schühle, Photospheric magnetic field changes associated with transition region explosive events The Astrophysical Journal. ,vol. 497, ,(1998) , 10.1086/311289
D. G. Hummer, G. B. Rybicki, Redshifted Line Profiles from Differentially Expanding Atmospheres The Astrophysical Journal. ,vol. 153, ,(1968) , 10.1086/180231
T. Magara, A MAGNETOHYDRODYNAMIC MODEL FOCUSED ON THE CONFIGURATION OF MAGNETIC FIELD RESPONSIBLE FOR A SOLAR PENUMBRAL MICROJET The Astrophysical Journal. ,vol. 715, ,(2010) , 10.1088/2041-8205/715/1/L40
Hui Tian, Scott W. McIntosh, Lidong Xia, Jiansen He, Xin Wang, What can We Learn about Solar Coronal Mass Ejections, Coronal Dimmings, and Extreme-ultraviolet Jets through Spectroscopic Observations? The Astrophysical Journal. ,vol. 748, pp. 106- ,(2012) , 10.1088/0004-637X/748/2/106
W. A. Podgorski, J.-P. Wülser, C. J. Schrijver, B. W. Lites, C. J. Wolfson, V. H. Hansteen, R. Seguin, G. D. Kushner, L. Kleint, P. Testa, T. J. Okamoto, A. M. Title, J. R. Lemen, J. Mudge, J. Aloise, H. Tian, S. Sawyer, S. Park, R. I. Bush, G. Auker, G. F. Heyman, L. Springer, D. W. Duncan, C. Hoffman, M. Carlsson, D. J. Akin, T. M. D. Pereira, T. M. D. Pereira, E. E. DeLuca, P. Pool, S. P. Worden, K. Reeves, J. Leenaarts, R. Gates, C. C. Kankelborg, P. Boerner, P. N. Cheimets, M. Cheung, C. Yanari, R. Brookner, J. Marmie, D. Sabolish, V. Knagenhjelm, N. Nguyen-Phuc, S. W. McIntosh, L. Phan, H. Uitenbroek, L. Golub, P. Boyle, R. van Bezooijen, M. Wiesmann, I. Weingrod, D. Mathur, T. Berger, P. H. Scherrer, K.-C. Chu, T. D. Tarbell, S. Larsen, K. Mashburn, M. A. Gummin, C. Dunn, B. Allard, J. Strong, C. Chou, T. Perry, B. Dougherty, N. Pust, P. Brekke, N. Waltham, G. Butcher, E. Mazmanian, J. Eder, D. Mansir, R. Carvalho, S. Eccles, R. Rehse, S. Freeland, S. A. Jaeggli, J. Martinez-Sykora, S. Saar, N. E. Hurlburt, S. McKillop, P. Jerram, R. Timmons, J. F. Drake, B. De Pontieu, B. De Pontieu, M. Weber, R. W. Lindgren, E. Hertz, The Interface Region Imaging Spectrograph (IRIS) Solar Physics. ,vol. 289, pp. 2733- 2779 ,(2014) , 10.1007/S11207-014-0485-Y