New Insights into the Sun’s Photosphere Dynamics Offered by New Solar Telescope of BBSO Big Bear Solar Observatory Valentina Abramenko, Vasyl Yurchyshyn,

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Presentation transcript:

New Insights into the Sun’s Photosphere Dynamics Offered by New Solar Telescope of BBSO Big Bear Solar Observatory Valentina Abramenko, Vasyl Yurchyshyn, Philip R. Goode and the NST team Big Bear Solar Observatory, CA 7/02/2011XXV IUGG/IAGA, Melbourne, Australia

New Solar Telescope at Big Bear 7/02/2011XXV IUGG/IAGA, Melbourne, Australia

7/02/2011XXV IUGG/IAGA, Melbourne, Australia

7/02/2011XXV IUGG/IAGA, Melbourne, Australia Coude room optical layout

7/02/2011XXV IUGG/IAGA, Melbourne, Australia Magnetic Fields Measurements from NST and SDO NST InfraRed MagnetogramSDO magnetigram

7/02/2011XXV IUGG/IAGA, Melbourne, Australia Hinode/G-band NST TiO Hinode Satellite (Left) and NST (Right) Images of the Sun the Same Time/Place (Abramenko et al. 2010, ApJL, 725)

Bright points (magnetic flux tubes) are NOT ribbons, but always form chains of beads

7/02/2011XXV IUGG/IAGA, Melbourne, Australia NST observations verify simulations of granula evolution : formation of bright granula lane moving inside the granula is accompanied by emergence of horizontal rotating vortex tube and tiny jets (Yurchyshyn et al ApJL, accepted)

7/02/2011XXV IUGG/IAGA, Melbourne, Australia Pores and penumbra formation, photospheric signatures of flux emergence (Lim et al, ApJ submitted)

7/02/2011XXV IUGG/IAGA, Melbourne, Australia Dynamics and statistics of photospheric bright points (BPs) A set of 648 TiO images: AO corrected Speckle reconstructed Aligned Destretched Image size: 14 x 14 Mm, or 510 x 510 pixels Cadence 10 s BPs were detected and tracked

7/02/2011XXV IUGG/IAGA, Melbourne, Australia Size distribution of BPs: minimum size of flux tubes is not reached yet (Abramenko et al. 2010, ApJL, 725) 77 km

7/02/2011XXV IUGG/IAGA, Melbourne, Australia Magnetic diffusion in the photosphere occur in a super-diffusion regime on scales below 600 km and shorter than 10 min (Abramenko et al. under preparation) Details: Tuesday, Jul 5, 16:30 talk in this room

7/02/2011XXV IUGG/IAGA, Melbourne, Australia

7/02/2011XXV IUGG/IAGA, Melbourne, Australia Diffusivity: some definitions:

7/02/2011XXV IUGG/IAGA, Melbourne, Australia Details: Tuesday, Jul 5, 16:30 talk in this room