On a small-scale EUV wave: the driving mechanism and the associated oscillating filament

摘要: We present observations of a small-scale Extreme-ultraviolet (EUV) wave that was associated with mini-filament eruption and GOES B1.9 micro-fare in the quiet Sun region. The initiation event due to photospheric magnetic emergence cancellation source region, which first caused ejection small plasma ejecta, then ejecta impacted on nearby thereby led filament's fare. During filament eruption, an EUV at speed 182 { 317 km/s formed ahead expanding coronal loop, propagated faster than loop showed obvious deceleration refection during propagation. In addition, further resulted transverse oscillation remote whose period damping time are 15 60 minutes, respectively. Based observational results, we propose should be fast-mode magnetosonic driven by loop. Moreover, application seismology, it is estimated radial field strength about 7 Gauss. also suggest waves miniature solar eruptions share similar driving mechanism characteristics their large-scale counterparts.