2023A&A...678A..48E

Query : 2023A&A...678A..48E

2023A&A...678A..48E - Astronomy and Astrophysics, volume 678A48 (2023/10-1)

The second data release from the European Pulsar Timing Array I. The dataset and timing analysis.

EPTA COLLABORATION, ANTONIADIS J., BABAK S., BAK NIELSEN A.-S., BASSA C.G., BERTHEREAU A., BONETTI M., BORTOLAS E., BROOK P.R., BURGAY M., CABALLERO R.N., CHALUMEAU A., CHAMPION D.J., CLIANLARIDIS S., CHEN S., COGNARD I., DESVIGNES G., FALXA M., FERDMAN R.D., FRANCHINI A., GAIR J.R., GONCHAROV B., GRAIKOU E., GRIESSMEIER J.-M., GUILLEMOT L., GUO Y.J., HU H., IRACI F., IZQUIERDO-VILLALBA D., JANG J., JAWOR J., JANSSEN G.H., JESSNER A., KARUPPUSAMY R., KEANE E.F., KEITH M.J., KRAMER M., KRISHNAKUMAR M.A., LACKEOS K., LEE K.J., LIU K., LIU Y., LYNE A.G., McKEE J.W., MAIN R.A., MICKALIGER M.B., NITU I.C., PARTHASARATHY A., PERERA B.B.P., PERRODIN D., PETITEAU A., PORAYKO N.K., POSSENTI A., QUELQUEJAY LECLERE H., SAMAJDAR A., SANIDAS S.A., SESANA A., SHAIFULLAH G., SPERI L., SPIEWAK R., STAPPERS B.W., SUSARLA S.C., THEUREAU G., TIBURZI C., VAN DER WATEREN E., VECCHIO A., VENKATRAMAN KRISHNAN V., VERBIEST J.P.W., WANG J., WANG L. and WU Z.

Abstract (from CDS):

Pulsar timing arrays offer a probe of the low-frequency gravitational wave spectrum (1-100 nHz), which is intimately connected to a number of markers that can uniquely trace the formation and evolution of the Universe. We present the dataset and the results of the timing analysis from the second data release of the European Pulsar Timing Array (EPTA). The dataset contains high-precision pulsar timing data from 25 millisecond pulsars collected with the five largest radio telescopes in Europe, as well as the Large European Array for Pulsars. The dataset forms the foundation for the search for gravitational waves by the EPTA, presented in associated papers. We describe the dataset and present the results of the frequentist and Bayesian pulsar timing analysis for individual millisecond pulsars that have been observed over the last ∼25 yr. We discuss the improvements to the individual pulsar parameter estimates, as well as new measurements of the physical properties of these pulsars and their companions. This data release extends the dataset from EPTA Data Release 1 up to the beginning of 2021, with individual pulsar datasets with timespans ranging from 14 to 25 yr. These lead to improved constraints on annual parallaxes, secular variation of the orbital period, and Shapiro delay for a number of sources. Based on these results, we derived astrophysical parameters that include distances, transverse velocities, binary pulsar masses, and annual orbital parallaxes.

Abstract Copyright: © The Authors 2023

Journal keyword(s): gravitational waves - pulsars: general - methods: observational - parallaxes - proper motions - ephemerides

Simbad objects: 25

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Number of rows : 25
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 J0030+0451 Psr 00 30 27.42348 +04 51 39.7144           ~ 596 1
2 PSR B0613-02.0 Psr 06 13 43.977070 -02 00 47.34294           ~ 319 1
3 PSR J0751+1807 Psr 07 51 09.1539 +18 07 38.335           ~ 316 1
4 PSR J0900-3144 Psr 09 00 43.95220 -31 44 30.8722           ~ 68 0
5 PSR J1012+5307 Psr 10 12 33.4345449600 +53 07 02.548542576     19.5     DA 419 1
6 PSR J1022+10 Psr 10 22 57.990 +10 01 52.92           ~ 279 2
7 PSR J1025-07 Psr 10 24 38.6991893112 -07 19 19.045523388     19.81 18.78 18.00 ~ 286 1
8 PSR J1455-3300 Psr 14 55 47.976991 -33 30 46.40280           ~ 165 1
9 PSR J1600-3053 Psr 16 00 51.902514 -30 53 49.45343           ~ 218 0
10 PSR J1640+2224 Psr 16 40 16.744850 +22 24 08.84119           ~ 210 0
11 PSR J1713+0747 Psr 17 13 49.5367813 +07 47 37.450240           ~ 530 1
12 PSR J1730-2304 Psr 17 30 21.68471 -23 04 31.2590           ~ 194 1
13 PSR J1738+0333 Psr 17 38 53.966386 +03 33 10.87200           ~ 191 1
14 PSR J1744-1134 Psr 17 44 29.4220844 -11 34 54.801320           ~ 323 1
15 PSR J1751-2857 Psr 17 51 32.686848 -28 57 46.57130           ~ 65 1
16 PSR J1801-1417 Psr 18 01 51.064902 -14 17 34.54980           ~ 45 0
17 PSR J1804-27 Psr 18 04 21.13307 -27 17 31.3370           ~ 87 1
18 PSR J1843-1113 Psr 18 43 41.260405 -11 13 31.10310           ~ 86 0
19 PSR B1855+09 Psr 18 57 36.390620 +09 43 17.20712           DA 569 1
20 PSR J1909-3744 Psr 19 09 47.42820 -37 44 14.7740           ~ 343 2
21 PSR J1910+1256 Psr 19 10 09.701454 +12 56 25.48680           ~ 108 1
22 PSR J1911+1347 Psr 19 11 55.204694 +13 47 34.38383           ~ 72 0
23 PSR J1918-0642 Psr 19 18 48.027685 -06 42 34.95735           ~ 146 0
24 PSR J2124-3358 Psr 21 24 43.834930 -33 58 45.49195           ~ 337 1
25 PSR J2322+2057 Psr 23 22 22.320041 +20 57 02.50080           ~ 129 1

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