Glitch monitoring in PSRs B1046−58 and B1737−30

Large glitches were recently observed in the spin rates of two pulsars, B1046?58 and B1737?30. The glitches were characterized by fractional increases in rotation rate of 0.77 and  1.44×10^?6  respectively. PSR B1737?30 is the most frequently glitching pulsar and this is the largest glitch so far observed from it. Most of the jump in the spin-down rate accompanying these glitches decayed away on short time-scales of a few days. For PSR B1737?30, there appears to be a cumulative shift in spin-down rate resulting from its frequent glitches. This probably accounts for its braking index of  ?4±2  suggested by the available data, while a value of  2.1±0.2  is obtained for B1046?58.