Ring-diagram analysis with GONG++

T. Corbard (1) , C. Toner (1) , F. Hill (1) , K. D. Hanna (1) , D. A. Haber (2) , B. W. Hindman (2) , R. S. Bogart (3)

1 NSO/Tucson - National Solar Observatory [Tucson]
2 JILA - Joint Institute for Laboratory Astrophysics
3 HEPL - Hansen Experimental Physics Lab [Stanford]

Images from the updated GONG network (GONG+) have been produced since July 2001. In order to treat individual site images and the merged images (Toner et al., 2003) for local helioseismology studies, we have developed an enhanced tracking/remapping code that is now part of the new GONG pipeline (GONG ++) (Hill et al., 2003). We present here the data-cube, 3D power spectra and sub-surface flow maps that will become part of the new GONG++ products and comapare the preliminary results with the ring diagram analysis of MDI images for the same days.

Mots clés: Sun; Ring-Diagram; Data Analysis

Domaines: Astrophysique stellaire et solaire [astro-ph.SR]

T. Corbard, C. Toner, F. Hill, K. D. Hanna, D. A. Haber, et al.. Ring-diagram analysis with GONG++. SOHO 12 / GONG+ 2002. Local and global helioseismology: the present and future, Oct 2002, Big Bear Lake, CA, United States. pp.255 - 258. ⟨hal-02914154⟩