Signatures of very long period waves in the polar coronal holes

被引:42
作者
Banerjee, D
O'Shea, E
Doyle, JG
Goossens, M
机构
[1] Katholieke Univ Leuven, Ctr Plasma Astrophys, B-3001 Heverlee, Belgium
[2] ESA, Dept Space Sci, ESTEC, Solar Syst Div, NL-2201 AZ Noordwijk, Netherlands
[3] Armagh Observ, Armagh BT61 9DG, North Ireland
来源
ASTRONOMY & ASTROPHYSICS | 2001年 / 380卷 / 02期
关键词
Sun : polar coronal holes; ultraviolet : SoHO; Sun : oscillations;
D O I
10.1051/0004-6361:20011548
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We examine long spectral time series of a coronal hole observed on the 7th March 2000 with the Coronal Diagnostic Spectrometer (CDS) on-board SoHO. The observations were obtained in the chromospheric He I, and a series of higher temperature oxygen lines. In this letter we report on the presence of long period oscillations in a polar coronal hole region on the disk. Our observations indicate the presence of compressional waves with periods of 20-30 min or longer.
引用
收藏
页码:L39 / L42
页数:4
相关论文
共 12 条
  • [1] Long-period oscillations in polar plumes as observed by CDS on SOHO
    Banerjee, D
    O'Shea, E
    Doyle, JG
    [J]. SOLAR PHYSICS, 2000, 196 (01) : 63 - 78
  • [2] Long period oscillations in the inter-plume regions of the Sun
    Banerjee, D
    O'Shea, E
    Doyle, JG
    Goossens, M
    [J]. ASTRONOMY & ASTROPHYSICS, 2001, 377 (02): : 691 - 700
  • [3] Observation of quasi-periodic compressive waves in solar polar plumes
    DeForest, CE
    Gurman, JB
    [J]. ASTROPHYSICAL JOURNAL, 1998, 501 (02) : L217 - L220
  • [4] Waves in the solar transition region
    Doyle, JG
    Van den Oord, GHJ
    O'Shea, E
    Banerjee, D
    [J]. SOLAR PHYSICS, 1998, 181 (01) : 51 - 71
  • [5] The coronal diagnostic spectrometer for the solar and heliospheric observatory
    Harrison, RA
    Sawyer, EC
    Carter, MK
    Cruise, AM
    Cutler, RM
    Fludra, A
    Hayes, RW
    Kent, BJ
    Lang, J
    Parker, DJ
    Payne, J
    Pike, CD
    Peskett, SC
    Richards, AG
    Culhane, JL
    Norman, K
    Breeveld, AA
    Breeveld, ER
    ALJanabi, KF
    Mccalden, AJ
    Parkinson, JH
    Self, DG
    Thomas, PD
    Poland, AI
    Thomas, RJ
    Thompson, WT
    KjeldsethMoe, O
    Brekke, P
    Karud, J
    Maltby, P
    Aschenbach, B
    Brauninger, H
    Kuhne, M
    Hollandt, J
    Siegmund, OHW
    Huber, MCE
    Gabriel, AH
    Mason, HE
    Bromage, BJI
    [J]. SOLAR PHYSICS, 1995, 162 (1-2) : 233 - 290
  • [6] Solar wind outflow and the chromospheric magnetic network
    Hassler, DM
    Dammasch, IE
    Lemaire, P
    Brekke, P
    Curdt, W
    Mason, HE
    Vial, JC
    Wilhelm, K
    [J]. SCIENCE, 1999, 283 (5403) : 810 - 813
  • [7] A TEST OF SIGNIFICANCE FOR PERIODS DERIVED USING PHASE-DISPERSION-MINIMIZATION TECHNIQUES
    NEMEC, AFL
    NEMEC, JM
    [J]. ASTRONOMICAL JOURNAL, 1985, 90 (11) : 2317 - 2320
  • [8] Active region oscillations
    O'Shea, E
    Banerjee, D
    Doyle, JG
    Fleck, B
    Murtagh, F
    [J]. ASTRONOMY & ASTROPHYSICS, 2001, 368 (03): : 1095 - 1107
  • [9] UVCSWLC observations of compressional waves in the south polar coronal hole
    Ofman, L
    Romoli, M
    Poletto, G
    Noci, G
    Kohl, JL
    [J]. ASTROPHYSICAL JOURNAL, 2000, 529 (01) : 592 - 598
  • [10] Torrence C, 1998, B AM METEOROL SOC, V79, P61, DOI 10.1175/1520-0477(1998)079<0061:APGTWA>2.0.CO