Joint observations of propagating oscillations with SOHO/CDS and TRACE

被引:59
作者
Marsh, MS [1 ]
Walsh, RW
De Moortel, I
Ireland, J
机构
[1] Univ Cent Lancashire, Ctr Astrophys, Preston PR1 2HE, Lancs, England
[2] Univ St Andrews, Sch Math & Stat, St Andrews KY16 9SS, Fife, Scotland
[3] NASA, L3 Commun EER Syst Inc, GSFC, Greenbelt, MD 20771 USA
关键词
Sun : corona; Sun : oscillations; Sun : transition region; Sun : UV radiation; waves;
D O I
10.1051/0004-6361:20030709
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Joint Observing Program (JOP) 83 Solar and Heliospheric Observatory/Coronal Diagnostic Spectrometer (SOHO/CDS) and Transition Region and Coronal Explorer (TRACE) data is analysed for evidence of propagating intensity oscillations along loop structures in the solar corona. A propagating intensity oscillation with a minimum estimated speed of 50-195 km s(-1) is observed within a TRACE 171 Angstrom coronal loop using a running difference method. Co-spatial and co-temporal CDS and TRACE observations of this loop are analysed using a wavelet analysis method. The TRACE data shows a propagating oscillation with a period of approximate to300 s. This period is also observed with CDS suggesting propagating oscillations at chromospheric, transition region and coronal temperatures in the He I, O V and Mg IX lines.
引用
收藏
页码:L37 / L41
页数:5
相关论文
共 17 条
  • [11] Ireland J, 1999, ASTRON ASTROPHYS, V347, P355
  • [12] A wavelet analysis of quasi-periodic variability across a solar coronal hole region
    Marsh, MS
    Walsh, RW
    Bromage, BJI
    [J]. ASTRONOMY & ASTROPHYSICS, 2002, 393 (02) : 649 - 659
  • [13] Oscillations above sunspots: Evidence for propagating waves?
    O'Shea, E
    Muglach, K
    Fleck, B
    [J]. ASTRONOMY & ASTROPHYSICS, 2002, 387 (02) : 642 - 664
  • [14] Slow magnetosonic waves in coronal plumes
    Ofman, L
    Nakariakov, VM
    DeForest, CE
    [J]. ASTROPHYSICAL JOURNAL, 1999, 514 (01) : 441 - 447
  • [15] Slow magnetoacoustic waves in coronal loops: EIT and TRACE
    Robbrecht, E
    Verwichte, E
    Berghmans, D
    Hochedez, JF
    Poedts, S
    Nakariakov, VM
    [J]. ASTRONOMY & ASTROPHYSICS, 2001, 370 (02) : 591 - 601
  • [16] Thompson W. T., 2000, 49 CDS
  • [17] THOMPSON WT, 2003, COMMUNICATION