Active Region Coronal Rain Event Observed by the Fast Imaging Solar Spectrograph on the NST
详细信息 查看全文
- 作者：Kwangsu Ahn ; Jongchul Chae ; Kyung-Suk Cho ; Donguk Song ; Heesu Yang…
- 关键词：Active regions ; Chromosphere ; Coronal rain ; Spectroscopic observations
- 刊名：Solar Physics
- 出版年：2014
- 出版时间：November 2014
- 年：2014
- 卷：289
- 期：11
- 页码：4117-4136
- 全文大小：2,340 KB
- 参考文献：1. Ahn, K., Chae, J., Park, H.-M., Nah, J., Park, Y.-D., Jang, B.-H., Moon, Y.-J.: 2008, / J. Korean Astron. Soc. 41, 31.
2. Antiochos, S.K., MacNeice, P.J., Spicer, P.J., Klimchuk, J.A.: 1999, / Astrophys. J. 512, 985. CrossRef
3. Antolin, P., Rouppe van der Voort, L.: 2012, / Astrophys. J. 745, 152. CrossRef
4. Antolin, P., Shibata, K., Vissers, G.: 2010, / Astrophys. J. 716, 154. CrossRef
5. Antolin, P., Vissers, G., Rouppe van der Voort, L.: 2012, / Solar Phys. 280, 457. CrossRef
6. Beckers, J.M.: 1962, / Aust. J. Phys. 15, 327. CrossRef
7. Beckers, J.M.: 1964, A study of the fine structures in the solar chromosphere, Ph.D. thesis, Univ. Utrecht.
8. Cao, W., Gorceix, N., Coulter, R., Ahn, K., Rimmele, T.R., Goode, P.R.: 2010, / Astron. Nachr. 331, 636. CrossRef
9. Chae, J., Park, H.-M., Ahn, K., Yang, H., Park, Y.-D., Nah, J., Jang, B.-H., Cho, K.-S., Cao, W., Goode, P.R.: 2013, / Solar Phys. 288, 1. CrossRef
10. de Groof, A., Bastiaensen, C., Müller, D.A.N., Berghmans, D., Poedts, S.: 2005, / Astron. Astrophys. 443, 319. CrossRef
11. del Toro Iniesta, J.C., Bellot Rubio, L.R., Collados, M.: 2001, / Astrophys. J. Lett. 549, L139. CrossRef
12. Dialetis, D., Mein, P., Alissandrakis, C.E.: 1985, / Astron. Astrophys. 147, 93.
13. Field, G.B.: 1965, / Astrophys. J. 142, 531. CrossRef
14. Foukal, P.: 1978, / Astrophys. J. 223, 1046. CrossRef
15. Georgakilas, A.A., Christopoulou, E.B., Skodras, A., Koutchmy, S.: 2003, / Astron. Astrophys. 403, 1123. CrossRef
16. Goldsmith, D.W.: 1971, / Solar Phys. 19, 86. CrossRef
17. Goode, P.R., Denker, C.J., Didkovsky, L.I., Kuhn, J.R., Wang, H.: 2003, / J. Korean Astron. Soc. 36, 125. CrossRef
18. Habbal, S.R., Ronan, R., Withbroe, G.L.: 1985, / Solar Phys. 98, 323. CrossRef
19. Hasan, S.S., Schuessler, M.: 1985, / Astron. Astrophys. 151, 69.
20. Heinzel, P., Anzer, U.: 2006, / Astrophys. J. Lett. 643, L65. CrossRef
21. Heinzel, P., Gouttebroze, P., Vial, J.-C.: 1994, / Astron. Astrophys. 292, 656.
22. Ichimoto, K., Shine, R.A., Lites, B., Kubo, M., Shimizu, T., Suematsu, Y., / et al.: 2007, / Publ. Astron. Soc. Japan 59, 593.
23. Kawaguchi, I.: 1970, / Publ. Astron. Soc. Japan 22, 405.
24. Lemen, J.R., Title, A.M., Akin, D.J., Boerner, P.F., Chou, C., Drake, J.F., / et al.: 2012, / Solar Phys. 275, 17. CrossRef
25. Leroy, J.-L.: 1972, / Solar Phys. 25, 413. CrossRef
26. Louis, R.E., Bellot Rubio, L.R., Mathew, S.K., Venkatakrishnan, P.: 2011, / Astrophys. J. 727, 49. CrossRef
27. Mein, P., Briand, C., Heinzel, P., Mein, N.: 2000, / Astron. Astrophys. 355, 1146.
28. Müller, D.A.N., Hansteen, V.H., Peter, H.: 2003, / Astron. Astrophys. 411, 605. CrossRef
29. Müller, D.A.N., Peter, H., Hansteen, V.H.: 2004, / Astron. Astrophys. 424, 289. CrossRef
30. Narain, U., Ulmschneider, P.: 1990, / Space Sci. Rev. 54, 377. CrossRef
31. Nicolas, K.R., Kjeldseth-Moe, O.: 1981, In: Cram, L.E., Thomas, J.H. (eds.) / The Physics of Sunspots, National Solar Observatory, Sunspot, 336.
32. Parker, E.N.: 1953, / Astrophys. J. 117, 431. CrossRef
33. Schrijver, C.J.: 2001, / Solar Phys. 198, 325. CrossRef
34. Tziotziou, K., Heinzel, P., Mein, P., Mein, N.: 2001, / Astron. Astrophys. 366, 686. CrossRef
35. Vardavas, I.M., Cram, L.E.: 1974, / Solar Phys. 38, 367. CrossRef
36. Vissers, G., Rouppe van der Voort, L.: 2012, / Astrophys. J. 750, 22. CrossRef
37. Wallace, L., Hinkle, K., Livingston, W.C.: 1993, / An Atlas of the Photospheric Spectrum from 8900 to 13-00?cm? / (7350 to 11-30??), National Solar Observatory, Tucson.
38. Wallace, L., Hinkle, K., Livingston, W.: 1998, / An Atlas of the Spectrum of the Solar Photosphere from 13-00 to 28-00?cm? / (3570 to 7405 ?). National Optical Astronomy Observatories, Tucson.
39. Wang, H., Chae, J., Gurman, J.B., Kucera, T.A.: 1998, / Solar Phys. 183, 91. CrossRef - 作者单位：Kwangsu Ahn (1)
Jongchul Chae (2)
Kyung-Suk Cho (3)
Donguk Song (2)
Heesu Yang (2)
Philip R. Goode (1)
Wenda Cao (1)
Hyungmin Park (2)
Jakyung Nah (3)
Bi-Ho Jang (3)
Young-Deuk Park (3)
1. Big Bear Solar Observatory, 40386 North Shore Lane, Big Bear City, CA, 92314, USA
2. Department of Physics and Astronomy, Seoul National University, Seoul, Korea
3. Korea Astronomy and Space Science Institute, Daejeon, Korea - ISSN：1573-093X
文摘
The Fast Imaging Solar Spectrograph (FISS) is being operated on the New Solar Telescope of the Big Bear Solar Observatory. It simultaneously records spectra of Hα and Ca?ii 8542?? lines, and this dual-spectra measurement provides an estimate of the temperature and nonthermal speed components. We observed a loop structure in AR 11305 using the FISS, SDO/AIA, and STEREO/EUVI in 304??, and found plasma material falling along the loop from a coronal height into the umbra of a sunspot, which accelerated up to 80?km?s?. We also observed C2 and C7 flare events near the loop. The temperature of the downflows was in the range of 10-00?–-3-00?K, increasing toward the umbra. The temperature of the flow varied with time, and the temperature near the footpoint rose immediately after the C7 flare, but the temperature toward the umbra remained the same. There seemed to be a temporal correlation between the amount of downflow material and the observed C-class flares. The downflows decreased gradually soon after the flares and then increased after a few hours. These high-speed red-shift events occurred continuously during the observations. The flows observed on-disk in Hα and Ca?ii 8542?? appeared as fragmented, fuzzy condensed material falling from the coronal heights when seen off-limb with STEREO/EUVI at 304??. Based on these observations, we propose that these flows were an on-disk signature of coronal rain.