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Preliminary Study of the Evolution of Solar Magnetic Structures and Photospheric Horizontal Velocity Fields by S. UeNo; R. Kitai; K. Ichimoto; T. Sakurai; D. Soltau; P.N. Brandt is a Physics and Astronomy article available to read on EtoBox.

What is Preliminary Study of the Evolution of Solar Magnetic Structures and Photospheric Horizontal Velocity Fields about?

In October 1997, we made a coordinated observation of the solar photosphere and chromosphere at Hlda observatory (Kyoto umverslty, Japan) and at Telde observatory (Tenenfe) over a 10 day We obtamed imaging data senes contmuously durmg 6 hr 45 mm m G-band (4308 A) observed with the Domeless Solar Telescope (DST) at Hlda on 24th October (effective FOV, 96"x99") Addltlonally, m this observation, we simultaneously observed Image senes of the chromosphere durmg the latter 4 hr 10 mm m H (Y lme center and H a! &O 6 A From these data set, we could detect that emerging flux tubes crossed the photosphere to the chromosphere and that 'convective collapse' phenomena appeared at the stage of the spot formation Moreover, we confirmed that the hfetlme of mesogranulatlon was about 4000 set (70 mm) from the temporal evolution of velocity patterns We show here only a summary of these observations

Who reads Preliminary Study of the Evolution of Solar Magnetic Structures and Photospheric Horizontal Velocity Fields?

Author

S. UeNo; R. Kitai; K. Ichimoto; T. Sakurai; D. Soltau; P.N. Brandt

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0273-1177)

Published

2000

Language

EN

Field

Physics and Astronomy (Physical Sciences)