Kinematics and Magnetic Properties of a Light Bridge in a Decaying Sunspot

摘要: We present the results obtained by analyzing high spatial and spectral resolution data of solar photosphere acquired CRisp Imaging SpectroPolarimeter at Swedish Solar Telescope on 6 August 2011, relevant to a large sunspot with light bridge (LB) observed in NOAA AR 11263. These are complemented simultaneous Hinode Spectropolarimeter (SP) observation Fe I 630.15 nm 630.25 lines. The continuum intensity map shows discontinuity radial distribution penumbral filaments correspondence LB, which dark lane (about 0.3" wide about 8.0" long) along its main axis. available were inverted Stokes Inversion based Response functions (SIR) code physical parameters maps obtained. line-of-sight (LOS) velocity plasma LB derived from Doppler effect motions towards away observer up 0.6 km/s, lower value than LOS velocities neighbouring filaments. noteworthy result is that we find toward km/s where located between two umbral cores, while motion strongly reduced an core one side other side. Statistically, correspond upflows/downflows andcomparing these Hinode/SP data, conclude surrounding magnetic field configuration (whether more or less inclined) could have role maintaining conditions for process piling lane. our study support confirm outcomes recent magnetohydro-dynamic simulations showing upflows axis LBs.