ATNF Home . ... ATCA . ... 2014, MNRAS 440, 2901) present deep 1.1-3.1 GHz Australia Telescope Compact Array (ATCA) observations of the radio halo of the bullet cluster, 1E 0657-55.8. ... 2014, MNRAS 445, 320) studied the emission from PSR J1717-4054 over intervals from single pulses to years using the Parkes radio telescope and the Australia Telescope Compact Array (ATCA). ... 2014, A 571, 67) present new Australia Telescope Compact Array (ATCA) observations of the young radio galaxy PKS B1718-649. ...
metrologia The leap second: its history and possible future R. A. Nelson, D. D. McCarthy , S. Malys, J. Levine, B. Guinot, H. F. Fliegel , R. L. Beard and T. R. Bartholome w Abstract. This paper reviews the theoretica l motivatio n for the leap second in the context of the historica l evolutio n of time measurement . Th e periodic insertio n of a leap second step into th e scale of Coordinate d Universal Time (UTC) necessitates frequent changes in comple x timekeepin g systems an d is currentl y th e
... Twenty-Six Year Monitoring of Water Masers IAU Symposium 242, Alice Springs 1 Contents of the work A sample of H2O maser emission sources has been observed since 1980. ... Rudnitskij et al. ... Twenty-Six Year Monitoring of Water Masers IAU Symposium 242, Alice Springs 4 Maser in a protoplanetary disc (S255) Flux density, Jy S255: H2O line profile 5 February 2002 Radial velocity, LSR, km/s Rudnitskij et al. ... Twenty-Six Year Monitoring of Water Masers IAU Symposium 242, Alice Springs 12 ...
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