Abstract
Type-I bursts (i.e. noise storms) are the earliest-known type of solar radio emission at the meter wavelength. They are believed to be excited by non-thermal energetic electrons accelerated in the corona. The underlying dynamic process and exact emission mechanism still remain unresolved. Here, with a combined analysis of extreme ultraviolet (EUV), radio and photospheric magnetic field data of unprecedented quality recorded during a type-I storm on 30 July 2011, we identify a good correlation between the radio bursts and the co-spatial EUV and magnetic activities. The EUV activities manifest themselves as three major brightening stripes above a region adjacent to a compact sunspot, while the magnetic field there presents multiple moving magnetic features (MMFs) with persistent coalescence or cancelation and a morphologically similar three-part distribution. We find that the type-I intensities are correlated with those of the EUV emissions at various wavelengths with a correlation coefficient of 0.7 – 0.8. In addition, in the region between the brightening EUV stripes and the radio sources there appear consistent dynamic motions with a series of bi-directional flows, suggesting ongoing small-scale reconnection there. Mainly based on the induced connection between the magnetic motion at the photosphere and the EUV and radio activities in the corona, we suggest that the observed type-I noise storms and the EUV brightening activities are the consequence of small-scale magnetic reconnection driven by MMFs. This is in support of the original proposal made by Bentley et al. (Solar Phys. 193, 227, 2000).
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Bentley, R.D., Klein, K.-L., van Driel-Gesztelyi, L., Démoulin, P., Trottet, G., Tassetto, P., Marty, G.: 2000, Magnetic activity associated with radio noise storms. Solar Phys. 193, 227. DOI . ADS .
Benz, A.O., Wentzel, D.G.: 1981, Coronal evolution and solar type I radio bursts – An ion-acoustic wave model. Astron. Astrophys. 94, 100. ADS .
Brueckner, G.E., Howard, R.A., Koomen, M.J., Korendyke, C.M., Michels, D.J., Moses, J.D., Socker, D.G., Dere, K.P., Lamy, P.L., Llebaria, A., Bout, M.V., Schwenn, R., Simnett, G.M., Bedford, D.K., Eyles, C.J.: 1995, The Large Angle Spectroscopic Coronagraph (LASCO). Solar Phys. 162, 357. DOI . ADS .
Canfield, R.C., Reardon, K.P., Leka, K.D., Shibata, K., Yokoyama, T., Shimojo, M.: 1996, H alpha surges and X-ray jets in AR 7260. Astrophys. J. 464, 1016. DOI . ADS .
Chertok, I.M., Kahler, S., Aurass, H., Gnezdilov, A.A.: 2001, Sharp decreases of solar metric radio storm emission. Solar Phys. 202, 337. DOI . ADS .
Crooker, N.U., Gosling, J.T., Kahler, S.W.: 2002, Reducing heliospheric magnetic flux from coronal mass ejections without disconnection. J. Geophys. Res. 107, 1028. DOI . ADS .
Del Zanna, G., Aulanier, G., Klein, K.-L., Török, T.: 2011, A single picture for solar coronal outflows and radio noise storms. Astron. Astrophys. 526, A137. DOI . ADS .
Edmondson, J.K.: 2012, On the role of interchange reconnection in the generation of the slow solar wind. Space Sci. Rev. 172, 209. DOI . ADS .
Elgarøy, E.Ø.: 1977, Solar Noise Storms. ADS .
Fisk, L.A.: 2005, The open magnetic flux of the Sun. I. Transport by reconnections with coronal loops. Astrophys. J. 626, 563. DOI . ADS .
Golub, L., Deluca, E., Austin, G., Bookbinder, J., Caldwell, D., Cheimets, P., Cirtain, J., Cosmo, M., Reid, P., Sette, A., Weber, M., Sakao, T., Kano, R., Shibasaki, K., Hara, H., Tsuneta, S., Kumagai, K., Tamura, T., Shimojo, M., McCracken, J., Carpenter, J., Haight, H., Siler, R., Wright, E., Tucker, J., Rutledge, H., Barbera, M., Peres, G., Varisco, S.: 2007, The X-Ray Telescope (XRT) for the Hinode mission. Solar Phys. 243, 63. DOI . ADS .
Hagenaar, H.J., Shine, R.A.: 2005, Moving magnetic features around sunspots. Astrophys. J. 635, 659. DOI . ADS .
Harvey, K., Harvey, J.: 1973, Observations of moving magnetic features near sunspots. Solar Phys. 28, 61. DOI . ADS .
Hey, J.S.: 1946, Solar radiations in the 4 – 6 metre radio wave-length band. Nature 157, 47. DOI . ADS .
Iwai, K., Misawa, H., Tsuchiya, F., Morioka, A., Masuda, S., Miyoshi, Y.: 2012a, Survey of accelerated particles in a solar active region using Hinode/XRT and ground-based type-I radio burst observations. In: Sekii, T., Watanabe, T., Sakurai, T. (eds.) Hinode-3: The 3rd Hinode Science Meeting, Astronomical Society of the Pacific Conference Series 454, 249. ADS .
Iwai, K., Miyoshi, Y., Masuda, S., Shimojo, M., Shiota, D., Inoue, S., Tsuchiya, F., Morioka, A., Misawa, H.: 2012b, Solar radio type-I noise storm modulated by coronal mass ejections. Astrophys. J. 744, 167. DOI . ADS .
Kai, K., Melrose, D.B., Suzuki, S.: 1985, In: McLean, D.J., Labrum, N.R. (eds.) Storms 415. ADS .
Kathiravan, C., Ramesh, R., Nataraj, H.S.: 2007, The post-coronal mass ejection solar atmosphere and radio noise storm activity. Astrophys. J. Lett. 656, L37. DOI . ADS .
Kerdraon, A., Delouis, J.-M.: 1997, The Nançay radioheliograph. In: Trottet, G. (ed.) Coronal Physics from Radio and Space Observations, Lecture Notes in Physics 483, Springer, Berlin, 192. DOI . ADS .
Kosugi, T., Matsuzaki, K., Sakao, T., Shimizu, T., Sone, Y., Tachikawa, S., Hashimoto, T., Minesugi, K., Ohnishi, A., Yamada, T., Tsuneta, S., Hara, H., Ichimoto, K., Suematsu, Y., Shimojo, M., Watanabe, T., Shimada, S., Davis, J.M., Hill, L.D., Owens, J.K., Title, A.M., Culhane, J.L., Harra, L.K., Doschek, G.A., Golub, L.: 2007, The Hinode (Solar-B) mission: An overview. Solar Phys. 243, 3. DOI . ADS .
Lemen, J.R., Title, A.M., Akin, D.J., Boerner, P.F., Chou, C., Drake, J.F., Duncan, D.W., Edwards, C.G., Friedlaender, F.M., Heyman, G.F., Hurlburt, N.E., Katz, N.L., Kushner, G.D., Levay, M., Lindgren, R.W., Mathur, D.P., McFeaters, E.L., Mitchell, S., Rehse, R.A., Schrijver, C.J., Springer, L.A., Stern, R.A., Tarbell, T.D., Wuelser, J.-P., Wolfson, C.J., Yanari, C., Bookbinder, J.A., Cheimets, P.N., Caldwell, D., Deluca, E.E., Gates, R., Golub, L., Park, S., Podgorski, W.A., Bush, R.I., Scherrer, P.H., Gummin, M.A., Smith, P., Auker, G., Jerram, P., Pool, P., Soufli, R., Windt, D.L., Beardsley, S., Clapp, M., Lang, J., Waltham, N.: 2012, The Atmospheric Imaging Assembly (AIA) on the Solar Dynamics Observatory (SDO). Solar Phys. 275, 17. DOI . ADS .
Mercier, C., Elgaroy, O., Tlamicha, A., Zlobec, P.: 1984, Solar noise storms coordinated observations – May 16 – 24, 1981. Solar Phys. 92, 375. DOI . ADS .
Pesnell, W.D., Thompson, B.J., Chamberlin, P.C.: 2012, The Solar Dynamics Observatory (SDO). Solar Phys. 275, 3. DOI . ADS .
Schatten, K.H., Wilcox, J.M., Ness, N.F.: 1969, A model of interplanetary and coronal magnetic fields. Solar Phys. 6, 442. DOI . ADS .
Schou, J., Scherrer, P.H., Bush, R.I., Wachter, R., Couvidat, S., Rabello-Soares, M.C., Bogart, R.S., Hoeksema, J.T., Liu, Y., Duvall, T.L., Akin, D.J., Allard, B.A., Miles, J.W., Rairden, R., Shine, R.A., Tarbell, T.D., Title, A.M., Wolfson, C.J., Elmore, D.F., Norton, A.A., Tomczyk, S.: 2012, Design and ground calibration of the Helioseismic and Magnetic Imager (HMI) instrument on the Solar Dynamics Observatory (SDO). Solar Phys. 275, 229. DOI . ADS .
Schrijver, C.J., De Rosa, M.L.: 2003, Photospheric and heliospheric magnetic fields. Solar Phys. 212, 165. DOI . ADS .
Sheeley, N.R. Jr.: 1969, The evolution of the photospheric network. Solar Phys. 9, 347. DOI . ADS .
Shimizu, T.: 1994, In: Sakurai, T., Hirayama, T., Ai, G. (eds.) Proc. of the 2nd Japan–China Seminar on Solar Phys. 193.
Spicer, D.S., Benz, A.O., Huba, J.D.: 1982, Solar type I noise storms and newly emerging magnetic flux. Astron. Astrophys. 105, 221. ADS .
Willson, R.F.: 2005a, Collaborative VLA, SOHO and RHESSI observations of evolving sources of energy release in the corona above active regions. Adv. Space Res. 35, 1813. DOI . ADS .
Willson, R.F.: 2005b, Very large array and SOHO observations of type I noise storms, large-scale loops and magnetic restructuring in the corona. Solar Phys. 227, 311. DOI . ADS .
Zwaan, C.: 1978, On the appearance of magnetic flux in the solar photosphere. Solar Phys. 60, 213. DOI . ADS .
Zwaan, C.: 1985, The emergence of magnetic flux. Solar Phys. 100, 397. DOI . ADS .
Acknowledgements
We thank the teams of e-Callisto, ARTEMIS, NRH, AIA/SDO, and HMI/SDO for making their data available to us. This work was supported by the National Natural Science Foundation of China (41331068, 11503014, U1431103 and U13311013), and the Key Laboratory of Solar Activity of the Chinese Academy of Sciences (CAS) under the grant number KLSA201602.
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Li, C.Y., Chen, Y., Wang, B. et al. EUV and Magnetic Activities Associated with Type-I Solar Radio Bursts. Sol Phys 292, 82 (2017). https://doi.org/10.1007/s11207-017-1108-1
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DOI: https://doi.org/10.1007/s11207-017-1108-1