Active Region Transient Events Observed with TRACE

作者: Daniel B. Seaton , Amy R. Winebarger , Edward E. DeLuca , Leon Golub , Katharine K. Reeves

DOI: 10.1086/338737

关键词:

摘要: Nearly all active region observations made by the Transition Region and Coronal Explorer (TRACE) contain seemingly spontaneous, short-lived brightenings in small-scale loops. In this paper, we present an analysis of these using high-cadence TRACE Active 9506 on 2001 June 21 from 15:17:00 to 15:46:00 UT. During time frame, several were observed over a neutral line emerging flux that had intensity signatures both 171 A (log Te ≈ 6.0) 1600 4.0-5.0) channels. The events cross-sectional diameter approximately 2'' length 25''. We interpret as reconnection associated with emergence, possible EUV counterparts transient brightenings.

参考文章(14)
D. Berghmans, F. Clette, Active region EUV transient brightenings – First Results by EIT of SOHO JOP 80 Solar Physics. ,vol. 186, pp. 207- 229 ,(1999) , 10.1023/A:1005189508371
H. P. Warren, J. A. Bookbinder, T. G. Forbes, L. Golub, H. S. Hudson, K. Reeves, A. Warshall, [ITAL]TRACE[/ITAL] and [ITAL]Yohkoh[/ITAL] Observations of High-Temperature Plasma in a Two-Ribbon Limb Flare The Astrophysical Journal. ,vol. 527, pp. L121- L124 ,(1999) , 10.1086/312410
T. Shimizu, S. Tsuneta, A. Title, T. Tarbell, R. Shine, Z. Frank, Heating of Active Region Corona by Transient Brightenings (Microflares) IAU Colloq. 153: Magnetodynamic Phenomena in the Solar Atmosphere - Prototypes of Stellar Magnetic Activity. pp. 37- 38 ,(1996) , 10.1007/978-94-009-0315-9_5
C.J. Schrijver, A.M. Title, T.E. Berger, L. Fletcher, N.E. Hurlburt, R.W. Nightingale, R.A. Shine, T.D. Tarbell, J. Wolfson, L. Golub, J.A. Bookbinder, E.E. DeLuca, R.A. McMullen, H.P. Warren, C.C. Kankelborg, B.N. Handy, B. De Pontieu, A new view of the solar outer atmosphere by the transition region and Coronal Explorer Solar Physics. ,vol. 187, pp. 261- 302 ,(1999) , 10.1023/A:1005194519642
B.N. Handy, L.W. Acton, C.C. Kankelborg, C.J. Wolfson, D.J. Akin, M.E. Bruner, R. Caravalho, R.C. Catura, R. Chevalier, D.W. Duncan, C.G. Edwards, C.N. Feinstein, S.L. Freeland, F.M. Friedlaender, C.H. Hoffmann, N.E. Hurlburt, B.K. Jurcevich, N.L. Katz, G.A. Kelly, J.R. Lemen, M. Levay, R.W. Lindgren, D.P. Mathur, S.B. Meyer, S.J. Morrison, M.D. Morrison, R.W. Nightingale, T.P. Pope, R.A. Rehse, C.J. Schrijver, R.A. Shine, L. Shing, K.T. Strong, T.D. Tarbell, A.M. Title, D.D. Torgerson, L. Golub, J.A. Bookbinder, D. Caldwell, P.N. Cheimets, W.N. Davis, E.E. Deluca, R.A. McMullen, H.P. Warren, D. Amato, R. Fisher, H. Maldonado, C. Parkinson, The transition region and coronal explorer Solar Physics. ,vol. 187, pp. 229- 260 ,(1999) , 10.1023/A:1005166902804
R. P. Lin, R. A. Schwartz, S. R. Kane, R. M. Pelling, K. C. Hurley, Solar hard x-ray microflares The Astrophysical Journal. ,vol. 283, pp. 421- 425 ,(1984) , 10.1086/162321
P. H. Scherrer, R. S. Bogart, R. I. Bush, J. T. Hoeksema, A. G. Kosovichev, J. Schou, W. Rosenberg, L. Springer, T. D. Tarbell, A. Title, C. J. Wolfson, I. Zayer, , The Solar Oscillations Investigation — Michelson Doppler Imager Solar Physics. ,vol. 162, pp. 129- 188 ,(1995) , 10.1007/BF00733429
Toshifumi Shimizu, Saku Tsuneta, Loren W. Acton, James R. Lemen, Yoshiaki Ogawara, Yutaka Uchida, Morphology of Active Region Transient Brightenings with the YOHKOH Soft X-Ray Telescope The Astrophysical Journal. ,vol. 422, pp. 906- 911 ,(1994) , 10.1086/173782
T. G. Forbes, L. W. Acton, Reconnection and Field Line Shrinkage in Solar Flares The Astrophysical Journal. ,vol. 459, pp. 330- ,(1996) , 10.1086/176896