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We aim to ascertain the physical parameters of a propagating wave over thesolar disk detected by the Interface Region Imaging Spectrograph (IRIS). Usingimaging data from the IRIS and the Solar Dynamic Observatory (SDO), we trackedbright spots to determine the parameters of a propagating transverse wave inactive region (AR) loops triggered by activation of a filament. Deriving theDoppler velocity of Si IV line from spectral observations of IRIS, we havedetermined the rotating directions of active region loops which are relevant tothe wave. On 2015 December 19, a filament was located on the polarity inversionline of the NOAA AR 12470. The filament was activated and then caused a C 1.1two-ribbon flare. Between the flare ribbons, two rotation motions of a set ofbright loops were observed to appear in turn with opposite directions.Following the end of the second rotation, a propagating wave and an associatedtransverse oscillation were detected in these bright loops. In 1400 A channel,there was bright material flowing along the loops in a wave-like manner, with aperiod of ~128 s and a mean amplitude of ~880 km. For the transverseoscillation, we tracked a given loop and determine the transverse positions ofthe tracking loop in a limited longitudinal range. In both of 1400 A and 171 Achannels, approximately four periods are distinguished during the transverseoscillation. The mean period of the oscillation is estimated as ~143 s and thedisplacement amplitude as between ~1370 km and ~690 km. We interpret theseoscillations as a propagating kink wave and obtain its speed of ~1400 km s-1.Our observations reveal that a flare associated with filament activation couldtrigger a kink propagating wave in active region loops over the solar disk.

Propagating wave in active region-loops, located over the solar disk observed by the Interface Region Imaging Spectrograph