Periodic Structures in Filaments

Dr. Alexei A. Pevtsov

ISOON observations

Periodic Structures in Filaments

Nakagawa & Malville, 1969

Length, 103 km

-instability on the interface between the filament and supporting field-supergranular flows may have some influence (but unlikely)

Typical supergranular cell

January 200316-Jan-200315 : 46 UT

17-Jan-200315 : 16 UT

17-Jan-200323 : 01 UT

ISOON images

23-Jan-200315 : 22 UT

22-Jan-200322 : 55 UT

21-Jan-200323 : 04 UT

ISOON images

24-Dec-2002

16-Feb-2003

Filament and Supergranuls