Seismic Tomography of the Near Solar Surface

Journal of astrophysics and astronomy

R. M. Larsen1²  T. L. Duvall Jr¹  L. Gizon1² 

[1] NASA/Goddard Space Flight Center, Greenbelt MD 20771, USA.$$;HEPL, Stanford University, Stanford CA 94305, USA.$$

关键词: Helioseismology;    supergranulation;    sunspots.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

Surface gravity waves have been used to probe flows in the two megameters beneath the photosphere using the techniques of time-distance helioseismology. The results suggest that supergranule velocities are smaller than at the surface. The outward flow outside a sunspot penumbra (the moat) is observed, as is an inward flow in the region beyond the moat.

【 授权许可】

Unknown