Abstract Using simultaneous high spatial (1.3 arcsec) and temporal (5 and 10 s) resolution
Hα observations from the 15 cm Solar Tower Telescope at Aryabhatta Research Institute of
Observational Sciences (ARIES), we study the oscillations in the relative intensity to explore
the possibility of sausage oscillations in the chromospheric cool post-flare loop. We use the
standard wavelet tool, and find the oscillation period of≈ 587 s near the loop apex, and≈
349 s near the footpoint. We suggest that the oscillations represent the fundamental and the …

Using simultaneous high spatial (1.3 arcsec) and temporal (5 and 10 s) resolution Hα
observations from the 15 cm Solar Tower Telescope at Aryabhatta Research Institute of
Observational Sciences (ARIES), we study the oscillations in the relative intensity to explore
the possibility of sausage oscillations in the chromospheric cool post-flare loop. We use the
standard wavelet tool, and find the oscillation period of≈ 587 s near the loop apex, and≈
349 s near the foot-point. We suggest that the oscillations represent the fundamental and the …