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We present an analysis of 745.6 ks of archival Chandra X-ray ObservatoryAdvanced CCD Imaging Spectrometer data accumulated between 2000 and 2016 of themillisecond pulsar (MSP) population in the rich Galactic globular clusterTerzan 5. Eight of the 37 MSPs with precise positions are found to haveplausible X-ray source matches. Despite the deep exposure, the remaining MSPsare either marginally detected or have no obvious X-ray counterparts, which canbe attributed to the typically soft thermal spectra of rotation-powered MSPs,which are strongly attenuated by the high intervening absorbing column(~$10^{22}$ cm$^{-2}$) towards the cluster, and in some instances severe sourcecrowding/blending. For the "redback" MSP binaries, PSRs J1748-2446P andJ1748-2446ad, and the "black widow" binary PSRs J1748-2446O, we find clearevidence for large-amplitude X-ray variability at the orbital period consistentwith an intrabinary shock origin. The third redback MSP in the cluster, PSRJ1748-2446A, shows large amplitude variations in flux on time scales of years,possibility due to state transitions or intense flaring episodes from thesecondary star.

A Deep Chandra X-ray Observatory Study of the Millisecond Pulsar Population in the Globular Cluster Terzan 5