2012MNRAS.427.2780H

Query : 2012MNRAS.427.2780H

2012MNRAS.427.2780H - Mon. Not. R. Astron. Soc., 427, 2780-2787 (2012/December-3)

Development of a pulsar-based time-scale.

HOBBS G., COLES W., MANCHESTER R.N., KEITH M.J., SHANNON R.M., CHEN D., BAILES M., BHAT N.D.R., BURKE-SPOLAOR S., CHAMPION D., CHAUDHARY A., HOTAN A., KHOO J., KOCZ J., LEVIN Y., OSLOWSKI S., PREISIG B., RAVI V., REYNOLDS J.E., SARKISSIAN J., VAN STRATEN W., VERBIEST J.P.W., YARDLEY D. and YOU X.P.

Abstract (from CDS):

Using observations of pulsars from the Parkes Pulsar Timing Array (PPTA) project we develop the first pulsar-based time-scale that has a precision comparable to the uncertainties in International Atomic Time-scales (TAI). Our ensemble of pulsars provides an Ensemble Pulsar Scale (EPS) analogous to the free atomic time-scale Échelle Atomique Libre. The EPS can be used to detect fluctuations in atomic time-scales and therefore can lead to a new realization of Terrestrial Time, TT(PPTA11). We successfully follow features known to affect the frequency of the TAI, and we find marginally significant differences between TT(PPTA11) and TT(BIPM11). We discuss the various phenomena that lead to a correlated signal in the pulsar timing residuals and therefore limit the stability of the pulsar time-scale.

Abstract Copyright: © 2012 The Authors Monthly Notices of the Royal Astronomical Society © 2012 RAS

Journal keyword(s): time - pulsars: general

Simbad objects: 20

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Number of rows : 20
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 PSR J0437-47 Psr 04 37 15.7994581776 -47 15 08.544351636           DC 1032 0
2 PSR B0613-02.0 Psr 06 13 43.977070 -02 00 47.34294           ~ 319 1
3 PSR J0712-68 Psr 07 11 54.153093 -68 30 47.23387           ~ 120 1
4 PSR J1022+10 Psr 10 22 57.990 +10 01 52.92           ~ 279 2
5 PSR J1025-07 Psr 10 24 38.6991893112 -07 19 19.045523388     19.81 18.78 18.00 ~ 286 1
6 PSR J1045-45 Psr 10 45 50.179671 -45 09 54.05686           ~ 154 1
7 PSR J1600-3053 Psr 16 00 51.902514 -30 53 49.45343           ~ 218 0
8 PSR J1604-72 Psr 16 03 35.670781 -72 02 32.82328           ~ 142 0
9 PSR J1643-1224 Psr 16 43 38.16612 -12 24 58.6334           ~ 260 2
10 PSR J1713+0747 Psr 17 13 49.5367813 +07 47 37.450240           ~ 530 1
11 PSR J1730-2304 Psr 17 30 21.68471 -23 04 31.2590           ~ 194 1
12 PSR J1732-5049 Psr 17 32 47.766068 -50 49 00.31465           ~ 87 0
13 PSR J1744-1134 Psr 17 44 29.4220844 -11 34 54.801320           ~ 323 1
14 PSR J1824-2452A Psr 18 24 32.009 -24 52 11.10           ~ 529 2
15 PSR B1855+09 Psr 18 57 36.390620 +09 43 17.20712           DA 569 1
16 PSR J1909-3744 Psr 19 09 47.42820 -37 44 14.7740           ~ 343 2
17 PSR B1937+21.4 Psr 19 39 38.560096 +21 34 59.13552           ~ 1142 0
18 PSR J2124-3358 Psr 21 24 43.834930 -33 58 45.49195           ~ 337 1
19 PSR J2129-5718 Psr 21 29 22.781548 -57 21 14.33356           ~ 122 1
20 PSR B2145-07.8 Psr 21 45 50.45590 -07 50 18.5900           ~ 336 0

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