Time-distance helioseismology with f modes as a method for measurement of near-surface flows

被引:135
作者
Duvall, TL [1 ]
Gizon, L
机构
[1] NASA, Goddard Space Flight Ctr, Astron & Solar Phys Lab, Greenbelt, MD 20771 USA
[2] Stanford Univ, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA
关键词
D O I
10.1023/A:1005239503637
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Travel times measured for the f mode have been used to study flows near the solar surface in conjunction with simultaneous measurements of the magnetic field. Previous flow measurements of Doppler surface rotation, small magnetic feature rotation, supergranular pattern rotation, and surface meridional circulation have been confirmed. In addition, the flow in supergranules due to Coriolis forces has been measured. The spatial and temporal power spectra for a six-day observing sequence have been measured.
引用
收藏
页码:177 / 191
页数:15
相关论文
共 25 条
[1]  
BECK JG, 2000, IN PRESS SOLAR PHYS, V192
[2]   EFFECTS OF DIFFUSION ON SOLAR MODELS AND THEIR OSCILLATION FREQUENCIES [J].
CHRISTENSENDALSGAARD, J ;
PROFFITT, CR ;
THOMPSON, MJ .
ASTROPHYSICAL JOURNAL, 1993, 403 (02) :L75-L78
[3]   Near-surface flow fields deduced using correlation tracking and time-distance analyses [J].
De Rosa, M ;
Duvall, TL ;
Toomre, J .
SOLAR PHYSICS, 2000, 192 (1-2) :351-361
[4]  
Duvall TL, 1998, ESA SPEC PUBL, V418, P581
[5]   THE EQUATORIAL ROTATION RATE OF THE SUPERGRANULATION CELLS [J].
DUVALL, TL .
SOLAR PHYSICS, 1980, 66 (02) :213-221
[6]   Downflows under sunspots detected by helioseismic tomography [J].
Duvall, TL ;
DSilva, S ;
Jefferies, SM ;
Harvey, JW ;
Schou, J .
NATURE, 1996, 379 (6562) :235-237
[7]   Time-distance helioseismology with the MDI instrument: Initial results [J].
Duvall, TL ;
Kosovichev, AG ;
Scherrer, PH ;
Bogart, RS ;
Bush, RI ;
DeForest, C ;
Hoeksema, JT ;
Schou, J ;
Saba, JLR ;
Tarbell, TD ;
Title, AM ;
Wolfson, CJ ;
Milford, PN .
SOLAR PHYSICS, 1997, 170 (01) :63-73
[8]   MAGNETIC COUPLING OF ACTIVE CHROMOSPHERE TO SOLAR INTERIOR [J].
FOUKAL, P .
ASTROPHYSICAL JOURNAL, 1972, 173 (02) :439-&
[9]  
Harvey J., 1985, ESA SP, V235, P199
[10]   NON-LINEAR SIMULATIONS OF SOLAR ROTATION EFFECTS IN SUPERGRANULES [J].
HATHAWAY, DH .
SOLAR PHYSICS, 1982, 77 (1-2) :341-356