2025ApJ...991..231Y

Query : 2025ApJ...991..231Y

2025ApJ...991..231Y - Astrophys. J., 991, 231 (2025/October-1)

Follow-up Investigation of 11 Pulsars Discovered in the Commensal Radio Astronomy FAST Survey.

YANG K., LI L., YUAN J.P., WANG N., LI D., WANG P., MIAO C.C., ZHU W.W., XUE M.Y., YAN W.M., WANG J.B., YUEN R., LU G.L., ZHU C.H., YAO J.M., WU Q.D., WANG S.Q., SUN S.N., KOU F.F., ZHAO D., WANG Z., XU J., SUN C., FENG Y., LIU Z.J., MIAO X.L., MENG L.Q., NIU C.H., NIU J.R., QIAN L., XIE X.Y., XIAO Y.F., YUE Y.L., YOU S.P., DANG S.J., YU X.H., ZHAO R.S., ZHOU X., ZHANG L., WU J.F., WANG C.J., WANG Y.B. and GAN Z.Y.

Abstract (from CDS):

In this paper, we study 11 pulsars that were discovered by the Five-hundred-meter Aperture Spherical radio Telescope (FAST) in the Commensal Radio Astronomy FAST Survey. We report their phase-connected timing ephemeris, polarization pulse profiles, and Faraday rotation measures. The timing analysis shows that our sample includes seven normal pulsars and four (PSRs J0245+3219, J1437+3049, J1759-1248, and J1813-0852) millisecond pulsars, with periods ranging from 3.15 ms to 2.54 s, characteristic ages from 5.48 × 105 to 1.06 × 1010 yr, and surface magnetic fields from 1.46 × 108 to 1.18 × 1013 G. Six normal pulsars exhibit rich radiation characteristics, including nulling and subpulse drifting. PSR J0245+3219 (30.93 ms) has a spin period, characteristic age, surface magnetic field, and galactic height that are consistent with the parameters of disrupted recycled pulsars. PSR J1813-0852 (4.23 ms) is in a binary system with an orbit of 83.47 days, an eccentricity of 2.9 × 10–4, and its companion has a mass ranging from 0.28 to 0.76 M⊙. PSR J1813-0852 exhibits a spin period, companion mass, and orbital eccentricity that align well with the predicted characteristics of a millisecond pulsar-helium white dwarf systems.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Pulsars - Millisecond pulsars - Binary pulsars

Simbad objects: 12

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Number of rows : 12
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 J0104+6029 Psr 01 04 27.708 +60 29 09.13           ~ 1 0
2 PSR J0139+6159 Psr 01 39 56.15 +61 59 14.7           ~ 1 0
3 PSR J0231+6254 Psr 02 31 49.556 +62 54 15.21           ~ 1 0
4 PSR J0245+3219 Psr 02 45 09.8830 +32 19 24.940           ~ 1 0
5 PSR J1408+4944 Psr 14 08 34.392 +49 44 42.15           ~ 1 0
6 PSR J1437+3049 Psr 14 37 38.43495 +30 49 48.5270           ~ 1 0
7 4FGL J1759.8-1250 gam 17 59 50.0 -12 50 20           ~ 6 0
8 PSR J1759-1248 Psr 17 59 56.71594 -12 48 14.4710           ~ 1 0
9 PSR J1813-0852 Psr 18 13 26.99509 -08 52 31.5000           ~ 1 0
10 PSR J1909+0122 Psr 19 09 12.10 +01 22 52.7           ~ 3 0
11 PSR J2224+0823 Psr 22 24 04.56 +08 23 40.0           ~ 1 0
12 PSR J2329+2654 Psr 23 29 52.37 +26 54 33.0           ~ 1 0

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