HIGH-RESOLUTION OBSERVATIONS OF THE PHOTOSPHERE

被引:0
|
作者
TITLE, AM [1 ]
SHINE, RA [1 ]
TARBELL, TD [1 ]
TOPKA, KP [1 ]
SCHARMER, GB [1 ]
机构
[1] STOCKHOLM OBSERV, S-13300 SALTSJOBADEN, SWEDEN
来源
IAU SYMPOSIA | 1990年 / 138期
关键词
D O I
暂无
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
High resolution observations, theoretical models, and simulations are discovering many new and exciting phenomena in the solar atmosphere. In recent years, there have been a number of very high quality observations of the solar surface and lower photosphere made on the ground at Sacramento Peak Observatory, Pic du Midi, and at the Swedish Solar Observatory, La Palma. In space the Solar Optical Universal Polarimeter (SOUP) has made diffraction limited (30 cm aperture) time sequences completely free from atmospheric disturbances. The recognition that significant progress is possible in non-linear dynamics has encouraged a number of theoretical groups to attack the problem of convection in the solar atmosphere. Two, two and a half, and three dimensional simulations yield the geometry of the flow below the surface and a prediction of the response of the atmosphere above the surface. Models of magnetic flux tubes are now very sophisticated, and modern high resolution observations should be able to test these theories. The development of the technique of Local Correlation Tracking (LCT) has allowed the direct measurement of horizontal velocities in the atmosphere near disk center. The combination of Doppler and LCT measurements allows a direct measurement of the photospheric vector flow field. Measurements from SOUP, Sacramento Peak, Pic du Midi, and La Palma have shown that mesoscale flows cover the surface and that there exist still larger scale flows associated with emerging pores and active regions. Much of the recent experimental and theoretical progress in processing and understanding high resolution data has resulted from the availability of powerful scientific workstations for user interaction, large amounts of memory for image storage, and supercomputers for the massive fluid dynamics calculations. We are now in the very early stages of learning how to use these new computer tools to identify and follow processes in the solar atmosphere.
引用
收藏
页码:49 / 66
页数:18
相关论文
共 50 条
  • [31] On the need of high-resolution spectropolarimetric observations of prominences
    Paletou, F
    Aulanier, G
    CURRENT THEORETICAL MODELS AND HIGH RESOLUTION SOLAR OBSERVATIONS: PREPARING FOR ATST, 2003, 286 : 45 - 52
  • [32] HIGH-RESOLUTION OBSERVATIONS OF PHOTOSYNTHETIC MEMBRANE SYSTEM
    MURAKAMI, S
    JOURNAL OF ELECTRON MICROSCOPY, 1983, 32 (01): : 70 - 70
  • [33] High-resolution airborne radar observations of mammatus
    Winstead, NS
    Verlinde, J
    Arthur, ST
    Jaskiewicz, F
    Jensen, M
    Miles, N
    Nicosia, D
    MONTHLY WEATHER REVIEW, 2001, 129 (01) : 159 - 166
  • [35] High-Resolution Potassium Observations of the Lunar Exosphere
    Rosborough, S. A.
    Oliversen, R. J.
    Mierkiewicz, E. J.
    Sarantos, M.
    Robertson, S. D.
    Kuruppuaratchi, D. C. P.
    Derr, N. J.
    Gallant, M. A.
    Roesler, F. L.
    GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (12) : 6964 - 6971
  • [36] HIGH-RESOLUTION OBSERVATIONS OF THE EVERSHED EFFECT IN SUNSPOTS
    SHINE, RA
    TITLE, AM
    TARBELL, TD
    SMITH, K
    FRANK, ZA
    SCHARMER, G
    ASTROPHYSICAL JOURNAL, 1994, 430 (01): : 413 - 424
  • [37] High-resolution observations of the extreme ultraviolet sun
    Harrison, RA
    Fludra, A
    Pike, CD
    Payne, J
    Thompson, WT
    Poland, AI
    Breeveld, ER
    Breeveld, AA
    Culhane, JL
    KjeldsethMoe, O
    Huber, MCE
    Aschenbach, B
    SOLAR PHYSICS, 1997, 170 (01) : 123 - 141
  • [38] HIGH-RESOLUTION RADIO OBSERVATIONS OF NEARBY GALAXIES
    SAIKIA, DJ
    PEDLAR, A
    MULTI-WAVELENGTH CONTINUUM EMISSION OF AGN, 1994, (159): : 189 - 192
  • [39] HIGH-RESOLUTION CO OBSERVATIONS OF BARRED GALAXIES
    KENNEY, JDP
    IAU SYMPOSIA, 1991, (146): : 265 - 267