2025RAA....25g1001D

Query : 2025RAA....25g1001D

2025RAA....25g1001D - Research in Astron. and astroph., 25, part no 7, 1001 (2025/July-0)

The FAST Discovery of a Millisecond Pulsar M15O (PSR J2129+1210O) Hidden in the Harmonics of M15A (PSR J2129+1210A).

DAI Y., PAN Z., QIAN L., ZHANG L., YIN D., LI B., LI Y., WU Y. and LIAN Y.

Abstract (from CDS):

We report the discovery of an isolated millisecond pulsar M15O (J2129+1210O) from the globular cluster M15 (NGC 7078) with a period of ∼11.06686 ms and a dispersion measure of ∼67.44 cm–3 pc. Its spin period is so close to the 10th harmonic of the bright pulsar M15A (∼11.06647 ms) that it was missed in a previous pulsar search. We suggest adding the spectrum in the pulsar candidate diagnostic plot to identify new signals near the harmonics. M15O has the first spin frequency derivative and the second spin frequency derivative, being 1.79191(5) × 10–14 Hz s–1 and 3.3133(6) × 10–23 Hz s–2, respectively. Its projected distance from the optical center of M15 is the closest among all the pulsars in M15. The origin can be something from the center of the massive and core-collapsed globular cluster M15.

Abstract Copyright: © 2025. National Astronomical Observatories, CAS and IOP Publishing Ltd. All rights, including for text and data mining, AI training, and similar technologies, are reserved.

Journal keyword(s): methods: data analysis - (Galaxy:) globular clusters: individual (M15) - (stars:) pulsars: individual (M15O or J2129-1210O)

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 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 4158 0
2 PSR J1614-2230 Psr 16 14 36.50974 -22 30 31.5420           ~ 452 1
3 Cl Terzan 5 Cl* 17 48 05.00 -24 46 48.0           ~ 948 1
4 NGC 6517 GlC 18 01 50.376 -08 57 34.39   11.08       ~ 215 0
5 PSR J1915+1606 Psr 19 15 27.99999 +16 06 27.4034     22.5     ~ 1032 1
6 PSR B1937+21.4 Psr 19 39 38.560096 +21 34 59.13552           ~ 1142 0
7 PSR B2127+11F Psr 21 29 57.1783 +12 10 02.818           ~ 23 0
8 PSR J2129+1210G Psr 21 29 57.964 +12 09 56.50           ~ 16 0
9 PSR B2127+11H Psr 21 29 58.1828 +12 09 59.291           ~ 20 0
10 PSR B2127+11E Psr 21 29 58.18447 +12 10 08.5080           ~ 27 0
11 PSR J2129+1210L Psr 21 29 58.2 +12 09 33           ~ 3 0
12 PSR B2127+11 Psr 21 29 58.24650 +12 10 01.2339           ~ 102 2
13 PSR J2129+1210D Psr 21 29 58.274 +12 09 59.74           ~ 31 0
14 PSR J2129+1210O Psr 21 29 58.2999 +12 10 00.970           ~ 2 0
15 M 15 GlC 21 29 58.33 +12 10 01.2           ~ 3274 0
16 PSR J2129+1210I Psr 21 29 58.33 +12 10 01.2           ~ 3 0
17 PSR J2129+1210J Psr 21 29 58.4127 +12 10 16.014           ~ 3 0
18 PSR J2129+1210K Psr 21 29 58.43 +12 10 00.0           ~ 3 0
19 PSR J2129+1210B Psr 21 29 58.632 +12 10 00.31           ~ 31 1
20 PSR J2129+1209C Psr 21 30 01.2030 +12 10 38.159           ~ 215 2

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