Five New Millisecond Pulsars from a Radio Survey of 14 Unidentified Fermi-LAT Gamma-Ray Sources

We have discovered five millisecond pulsars (MSPs) in a survey of 14unidentified Fermi Large Area Telescope sources in the southern skyusing the Parkes radio telescope. PSRs J0101-6422, J1514-4946, andJ1902-5105 reside in binaries, while PSRs J1658-5324 and J1747-4036 areisolated. Using an ephemeris derived from timing observations of PSRJ0101-6422 (P = 2.57 ms, DM = 12 pc cm$^{-3}$), we have detected{$\gamma$}-ray pulsations and measured its proper motion. Its {$\gamma$}-rayspectrum (a power law of {$\Gamma$} = 0.9 with a cutoff at 1.6 GeV) andefficiency are typical of other MSPs, but its radio and {$\gamma$}-raylight curves challenge simple geometric models of emission. The highsuccess rate of this survey{\mdash}enabled by selecting {$\gamma$}-raysources based on their detailed spectral characteristics{\mdash}and othersimilarly successful searches indicate that a substantial fraction ofthe local population of MSPs may soon be known.