2021ApJS..252....5A

Query : 2021ApJS..252....5A

2021ApJS..252....5A - Astrophys. J., Suppl. Ser., 252, 5-5 (2021/January-0)

The NANOGrav 12.5 yr data set: wideband timing of 47 millisecond pulsars.

ALAM M.F., ARZOUMANIAN Z., BAKER P.T., BLUMER H., BOHLER K.E., BRAZIER A., BROOK P.R., BURKE-SPOLAOR S., CABALLERO K., CAMUCCIO R.S., CHAMBERLAIN R.L., CHATTERJEE S., CORDES J.M., CORNISH N.J., CRAWFORD F., CROMARTIE H.T., DECESAR M.E., DEMOREST P.B., DOLCH T., ELLIS J.A., FERDMAN R.D., FERRARA E.C., FIORE W., FONSECA E., GARCIA Y., GARVER-DANIELS N., GENTILE P.A., GOOD D.C., GUSDORFF J.A., HALMRAST D., HAZBOUN J.S., ISLO K., JENNINGS R.J., JESSUP C., JONES M.L., KAISER A.R., KAPLAN D.L., KELLEY L.Z., KEY J.S., LAM M.T., LAZIO T.J.W., LORIMER D.R., LUO J., LYNCH R.S., MADISON D.R., MARACCINI K., McLAUGHLIN M.A., MINGARELLI C.M.F., NG C., NGUYEN B.M.X., NICE D.J., PENNUCCI T.T., POL N.S., RAMETTE J., RANSOM S.M., RAY P.S., SHAPIRO-ALBERT B.J., SIEMENS X., SIMON J., SPIEWAK R., STAIRS I.H., STINEBRING D.R., STOVALL K., SWIGGUM J.K., TAYLOR S.R., TRIPEPI M., VALLISNERI M., VIGELAND S.J., WITT C.A., ZHU W. (The NANOGrav Collaboration)

Abstract (from CDS):

We present a new analysis of the profile data from the 47 millisecond pulsars comprising the 12.5 yr data set of the North American Nanohertz Observatory for Gravitational Waves, which is presented in a parallel paper (Alam et al., hereafter NG12.5). Our reprocessing is performed using "wideband" timing methods, which use frequency-dependent template profiles, simultaneous time-of-arrival (TOA) and dispersion measure (DM) measurements from broadband observations, and novel analysis techniques. In particular, the wideband DM measurements are used to constrain the DM portion of the timing model. We compare the ensemble timing results to those in NG12.5 by examining the timing residuals, timing models, and noise-model components. There is a remarkable level of agreement across all metrics considered. Our best-timed pulsars produce encouragingly similar results to those from NG12.5. In certain cases, such as high-DM pulsars with profile broadening or sources that are weak and scintillating, wideband timing techniques prove to be beneficial, leading to more precise timing model parameters by 10%-15%. The high-precision, multiband measurements of several pulsars indicate frequency-dependent DMs. Compared to the narrowband analysis in NG12.5, the TOA volume is reduced by a factor of 33, which may ultimately facilitate computational speed-ups for complex pulsar timing array analyses. This first wideband pulsar timing data set is a stepping stone, and its consistent results with NG12.5 assure us that such data sets are appropriate for gravitational wave analyses.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Millisecond pulsars - Pulsar timing method - Rotation powered pulsars - Binary pulsars - Radio pulsars - Pulsars - Gravitational waves - Astronomy data analysis - Interstellar medium

Simbad objects: 51

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Number of rows : 51
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 J0023+0923 Psr 00 23 16.890 +09 23 24.18           ~ 137 0
2 PSR J0030+0451 Psr 00 30 27.42348 +04 51 39.7144           ~ 596 1
3 PSR J0340+41 Psr 03 40 23.2887 +41 30 45.300           ~ 91 0
4 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0
5 PSR B0613-02.0 Psr 06 13 43.977070 -02 00 47.34294           ~ 319 1
6 PSR J0636+5129 Psr 06 36 04.84645 +51 28 59.9625           ~ 101 0
7 PSR J0645+5158 Psr 06 45 59.08191 +51 58 14.9210           ~ 65 0
8 PSR J0740+6620 Psr 07 40 45.799 +66 20 33.60           ~ 395 0
9 PSR J0931-1902 Psr 09 31 19.116246 -19 02 55.05445           ~ 60 0
10 PSR J1012+5307 Psr 10 12 33.4345449600 +53 07 02.548542576     19.5     DA 419 1
11 PSR J1025-07 Psr 10 24 38.6991893112 -07 19 19.045523388     19.81 18.78 18.00 ~ 286 1
12 PSR J1125+7819 Psr 11 25 59.851 +78 19 48.70           ~ 36 0
13 PSR J1453+1902 Psr 14 53 45.7175 +19 02 12.224           ~ 41 1
14 PSR J1455-3300 Psr 14 55 47.976991 -33 30 46.40280           ~ 165 1
15 PSR J1600-3053 Psr 16 00 51.902514 -30 53 49.45343           ~ 218 0
16 PSR J1614-2230 Psr 16 14 36.50974 -22 30 31.5420           ~ 452 1
17 LBN 006.00+24.73 HII 16 35 56.8 -12 43 05           ~ 76 0
18 * zet Oph Be* 16 37 09.5400587698 -10 34 01.509742704 1.73 2.58 2.56 2.46 2.50 O9.2IVnn 1908 0
19 PSR J1640+2224 Psr 16 40 16.744850 +22 24 08.84119           ~ 210 0
20 PSR J1643-1224 Psr 16 43 38.16612 -12 24 58.6334           ~ 260 2
21 PSR J1713+0747 Psr 17 13 49.5367813 +07 47 37.450240           ~ 530 1
22 PSR J1738+0333 Psr 17 38 53.966386 +03 33 10.87200           ~ 191 1
23 PSR J1741+1351 Psr 17 41 31.1499024 +13 51 44.279709           ~ 122 0
24 PSR J1744-1134 Psr 17 44 29.4220844 -11 34 54.801320           ~ 323 1
25 PSR J1747-4036 Psr 17 47 48.715690 -40 36 54.79950           ~ 83 0
26 PSR J1832-0836 Psr 18 32 27.589497 -08 36 55.14540           ~ 86 0
27 PSR J1853+1303 Psr 18 53 57.3183 +13 03 44.088           ~ 107 1
28 PSR B1855+09 Psr 18 57 36.390620 +09 43 17.20712           DA 569 1
29 PSR J1903+0327 Psr 19 03 05.7937 +03 27 19.222           ~ 187 1
30 PSR J1909-3744 Psr 19 09 47.42820 -37 44 14.7740           ~ 343 2
31 PSR J1910+1256 Psr 19 10 09.701454 +12 56 25.48680           ~ 108 1
32 PSR J1911+1347 Psr 19 11 55.204694 +13 47 34.38383           ~ 72 0
33 PSR J1918-0642 Psr 19 18 48.027685 -06 42 34.95735           ~ 146 0
34 PSR J1923+2515 Psr 19 23 22.494560 +25 15 40.64360           ~ 53 0
35 PSR B1937+21.4 Psr 19 39 38.560096 +21 34 59.13552           ~ 1142 0
36 PSR J1944+0907 Psr 19 44 09.32 +09 07 23.2           ~ 65 1
37 PSR J1946+3417 Psr 19 46 25.13182 +34 17 14.6770           ~ 64 0
38 PSR J1949+3106 Psr 19 49 29.63851 +31 06 03.8289           ~ 42 0
39 PSR B1953+29 Psr 19 55 27.8680959374 +29 08 43.499227152           ~ 303 1
40 PSR J2010-1323 Psr 20 10 45.922635 -13 23 56.13270           ~ 93 0
41 PSR J2017+0603 Psr 20 17 22.7048 +06 03 05.585           ~ 120 1
42 PSR J2033+1736 Psr 20 33 16.9140266736 +17 37 48.047177388   11.59 10.50     ~ 76 0
43 PSR J2043+1711 Psr 20 43 20.8828 +17 11 28.941           ~ 129 1
44 PSR B2145-07.8 Psr 21 45 50.45590 -07 50 18.5900           ~ 336 0
45 PSR J2214+3000 Psr 22 14 38.8480 +30 00 38.209           ~ 136 0
46 PSR J2229+26 Psr 22 29 50.883815 +26 43 57.61393           ~ 121 1
47 PSR J2234+06 Psr 22 34 22 +06 11.0           ~ 76 0
48 PSR J2234+0944 Psr 22 34 46.856913 +09 44 30.04150           ~ 82 0
49 PSR J2302+4442 Psr 23 02 46.9789 +44 42 22.102           ~ 124 0
50 PSR J2317+1439 Psr 23 17 09.235606 +14 39 31.29559           ~ 211 1
51 PSR J2322+2057 Psr 23 22 22.320041 +20 57 02.50080           ~ 129 1

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