Magnetic Flux Emergence and Decay Rates for Preceder and Follower Sunspots Observed with HMI

A. A. Norton, E. H. Jones, M. G. Linton +1

We quantify the emergence and decay rates of preceder (p) and follower (f) sunspots within ten active regions from 2010-2014 using Space-weather Helioseismic Magnetic Imager Active…