2020ApJ...892...43W

Query : 2020ApJ...892...43W

2020ApJ...892...43W - Astrophys. J., 892, 43-43 (2020/March-3)

Discovery and timing of pulsars in the globular cluster M13 with FAST.

WANG L., PENG B., STAPPERS B.W., LIU K., KEITH M.J., LYNE A.G., LU J., YU Y.-Z., KOU F., YAN J., JIANG P., JIN C., LI D., LI Q., QIAN L., WANG Q., YUE Y., ZHANG H., ZHANG S., ZHU Y. (The FAST Collaboration)

Abstract (from CDS):

We report the discovery of a binary millisecond pulsar (namely PSR J1641+3627F or M13F) in the globular cluster (GC) M13 (NGC 6205) and timing solutions of M13A to F using observations made with the Five-hundred-meter Aperture Spherical radio Telescope. PSR J1641+3627F has a spin period of 3.00 ms and an orbital period of 1.4 days. The most likely companion mass is 0.13 M☉. M13A to E all have short spin periods and small period derivatives. We also confirm that the binary millisecond pulsar PSR J1641+3627E (also M13E) is a black widow with a companion mass around 0.02 M☉. We find that all the binary systems have low eccentricities compared to those typical for GC pulsars and that they decrease with distance from the cluster core. This is consistent with what is expected, as this cluster has a very low encounter rate per binary.

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

Journal keyword(s): Millisecond pulsars - Pulsar timing method - Period search

Simbad objects: 15

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Number of rows : 15
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 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 4158 0
2 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2593 0
3 M 5 GlC 15 18 33.22 +02 04 51.7     5.95     ~ 2095 0
4 PSR B1639+36A Psr 16 41 40.880 +36 27 15.44           ~ 49 1
5 PSR J1641+3627B Psr 16 41 41.0 +36 27 37           ~ 29 1
6 PSR J1641+3627C Psr 16 41 41.0 +36 27 37           ~ 14 0
7 PSR J1641+3627E Psr 16 41 41.0 +36 27 37           ~ 17 0
8 PSR J1641+3627D Psr 16 41 41.0 +36 27 37           ~ 16 0
9 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2291 0
10 PSR J1641+3627F Psr 16 41 44.60580 +36 28 16.0034           ~ 15 0
11 M 62 GlC 17 01 12.60 -30 06 44.5           ~ 668 0
12 PSR J1824-2452A Psr 18 24 32.009 -24 52 11.10           ~ 529 2
13 M 28 GlC 18 24 32.89 -24 52 11.4           ~ 821 0
14 NGC 6749 OpC 19 05 15.36 +01 54 00.0     12.4     ~ 178 0
15 M 30 GlC 21 40 22.12 -23 10 47.5     7.10     ~ 1121 0

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