2024ApJ...969...30M

Query : 2024ApJ...969...30M

2024ApJ...969...30M - Astrophys. J., 969, 30 (2024/July-1)

A VLITE Search for Millisecond Pulsars in Globular Clusters: Discovery of a Pulsar in GLIMPSE-C01.

McCARVER A.V., MACCARONE T.J., RANSOM S.M., CLARKE T.E., GIACINTUCCI S., PETERS W.M., POLISENSKY E., NYLAND K., GAUTAM T., FREIRE P.C.C. and RANGELOV B.

Abstract (from CDS):

We present results from a search for pulsars in globular clusters, including the discovery of a new millisecond pulsar in the stellar cluster GLIMPSE-C01. We searched for low-frequency radio sources within 97 globular clusters using images from the VLA Low-band Ionosphere and Transient Experiment (VLITE) and epochs 1 and 2 of the VLITE Commensal Sky Survey. We discovered 10 sources in our search area, four more than expected from extragalactic source counts at our sensitivity limits. The strongest pulsar candidate was a point source found in GLIMPSE-C01 with a spectral index ∼ - 2.6, and we present additional measurements at 0.675 and 1.25 GHz from the GMRT and 1.52 GHz from the VLA that confirm the spectral index. Using archival Green Bank Telescope S-band data from 2005, we detect a binary pulsar with a spin period of 19.78 ms within the cluster. Although we cannot confirm that this pulsar is at the same position as the steep-spectrum source using the existing data, the pulse flux is consistent with the predicted flux density from other frequencies, making it a probable match. The source also shows strong X-ray emission, indicative of a higher magnetic field than most millisecond pulsars, suggesting that its recycling was interrupted. We demonstrate that low-frequency searches for steep-spectrum sources are an effective way to identify pulsar candidates, in particular on sightlines with high dispersion.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Millisecond pulsars - Globular star clusters - Galactic radio sources

Status at CDS : Acronym for new objects described in the dictionary of nomenclature and being created in SIMBAD. // All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 113

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Number of rows : 113
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 NGC 288 GlC 00 52 45.24 -26 34 57.4   10 8.13     ~ 1130 0
3 3C 48 QSO 01 37 41.2996631208 +33 09 35.080388820   16.62 16.20     ~ 2924 2
4 NAME Whiting 1 GlC 02 02 56.8 -03 15 10           ~ 177 0
5 Cl Pal 1 GlC 03 33 20.04 +79 34 51.8   17.2       ~ 267 1
6 NAME Eridanus Star Cluster GlC 04 24 44.5 -21 11 13           ~ 192 1
7 Cl Pal 2 GlC 04 46 05.79720 +31 22 51.0170           ~ 202 0
8 ICRF J052109.8+163822 Sy1 05 21 09.88596258 +16 38 22.0515459   19.37 18.84 18.480   ~ 910 1
9 M 79 GlC 05 24 10.59 -24 31 27.3     8.16     ~ 883 0
10 ICRF J054236.1+495107 Sy1 05 42 36.13789710 +49 51 07.2337139   18.45 17.80 17.210   ~ 1573 1
11 NGC 2298 GlC 06 48 59.41 -36 00 19.1     8.89     ~ 547 0
12 NGC 2419 GlC 07 38 08.51 +38 52 54.9     10.05     ~ 998 0
13 Koposov 2 GlC 07 58 17.00 +26 15 19.4           ~ 85 1
14 NAME Pyxis Cluster GlC 09 07 57.80 -37 13 17.0           ~ 123 0
15 NAME Sextans C GlC 10 05 30.96 +00 04 15.4   15.5 13.9     ~ 354 1
16 GCl 17 GlC 11 29 16.80 +28 58 25.0   14.4       ~ 379 1
17 Koposov 1 GlC 11 59 18.40 +12 15 35.8           ~ 81 0
18 NGC 4147 GlC 12 10 06.149 +18 32 31.78   11.45 10.74     ~ 616 0
19 M 68 GlC 12 39 27.98 -26 44 38.6     7.96     ~ 1069 0
20 NGC 5053 GlC 13 16 27.09 +17 42 00.9     9.96     ~ 675 0
21 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
22 C 1353-269 GlC 13 56 21.702 -27 10 03.00           ~ 146 0
23 NGC 5466 GlC 14 05 27.29 +28 32 04.0     9.70     ~ 887 0
24 Mrk 668 BLL 14 07 00.39441712 +28 27 14.6901341   16.13 15.35 10.29   ~ 826 3
25 3C 295 Sy1 14 11 20.6 +52 12 09   22.34 20.80 18.54   ~ 1021 4
26 NGC 5634 GlC 14 29 37.28 -05 58 35.1   10.69 10.05     ~ 333 0
27 NGC 5694 GlC 14 39 36.52 -26 32 18.0           ~ 323 0
28 NGC 5824 GlC 15 03 58.612 -33 04 06.70   10.28 9.56     ~ 441 0
29 Cl Pal 5 GlC 15 16 05.30 -00 06 41.0   15.1       ~ 797 1
30 NGC 5897 GlC 15 17 24.40 -21 00 36.4   10.16 8.52     ~ 424 0
31 GCl 38 GlC 16 10 59.00 +14 57 42.0           ~ 399 0
32 M 80 GlC 16 17 02.41 -22 58 33.9           ~ 780 0
33 NGC 6144 GlC 16 27 13.86 -26 01 24.6           ~ 268 0
34 NGC 6139 GlC 16 27 39.987 -38 50 57.03   11.03 9.68     ~ 231 0
35 ESO 390-6 GlC 16 28 40.10 -35 21 13.0     12.0     ~ 113 0
36 M 107 GlC 16 32 31.86 -13 03 13.6           ~ 835 0
37 ESO 452-11 GlC 16 39 25.50 -28 23 52.0           ~ 89 0
38 NGC 6229 GlC 16 46 58.641 +47 31 36.38   9.38 9.86     ~ 397 0
39 NGC 6235 GlC 16 53 25.36 -22 10 38.8   11.99 7.20     ~ 208 0
40 NGC 6256 GlC 16 59 32.68 -37 07 17.1           ~ 182 0
41 GCl 50 GlC 16 59 51.1 -00 32 00   15.70       ~ 224 1
42 M 19 GlC 17 02 37.69 -26 16 04.6   8.45 5.57     ~ 406 1
43 NGC 6284 GlC 17 04 28.747 -24 45 51.22   10.72 7.43     ~ 302 0
44 NGC 6287 GlC 17 05 09.4906767360 -22 42 28.099250172   11.49 10.30     ~ 240 0
45 NGC 6293 GlC 17 10 10.42 -26 34 54.2           ~ 309 0
46 NGC 6304 GlC 17 14 32.25 -29 27 43.3           ~ 394 0
47 NGC 6316 GlC 17 16 37.42 -28 08 24.0   10.33 9.03     ~ 247 0
48 NGC 6325 GlC 17 17 59.27 -23 45 57.7           ~ 190 0
49 M 9 GlC 17 19 11.78 -18 30 58.5   9.36 8.42     ~ 348 0
50 NGC 6356 GlC 17 23 34.99 -17 48 46.9   10.01 7.42     ~ 372 1
51 NGC 6355 GlC 17 23 58.65 -26 21 12.3   12.46 11.05     ~ 183 0
52 IC 1257 Bz? 17 27 06.00 -07 05 00.0           ~ 110 0
53 ESO 454-29 GlC 17 27 33.24 -30 48 07.8           ~ 278 0
54 NGC 6366 GlC 17 27 44.24 -05 04 47.5           ~ 344 0
55 GCl 66.1 GlC 17 30 38.90 -31 35 44.0           ~ 139 0
56 ESO 455-11 GlC 17 31 05.20 -29 58 54.0           ~ 208 0
57 Liller 1 Cl* 17 33 24.50 -33 23 20.0           ~ 311 0
58 NGC 6380 GlC 17 34 28.00 -39 04 09.0           ~ 175 0
59 NAME Tonantzintla 2 GlC 17 36 10.500 -38 33 12.00           ~ 115 0
60 NGC 6401 GlC 17 38 36.93 -23 54 31.5   11.31 10.71     ~ 203 0
61 ESO 520-21 GlC 17 43 42.20 -26 13 21.0           ~ 211 0
62 NGC 6426 GlC 17 44 54.71 +03 10 12.5           ~ 244 0
63 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
64 NAME cl Djorgovski 1 GlC 17 47 28.30 -33 03 56.0           ~ 97 0
65 Cl Terzan 5 Cl* 17 48 05.00 -24 46 48.0           ~ 948 1
66 Cl Terzan 6 GlC 17 50 47.02873 -31 16 29.6900           ~ 214 0
67 NGC 6453 GlC 17 50 51.77 -34 35 55.1   10.49       ~ 189 0
68 NAME UKS 1 GlC 17 54 27.20 -24 08 43.0           ~ 118 0
69 GCl 80.1 GlC 18 01 38.80 -26 50 23.0           ~ 143 0
70 ESO 456-38 GlC 18 01 49.10 -27 49 33.0           ~ 120 0
71 ESO 521-16 GlC 18 02 57.40 -26 04 00.0           ~ 123 0
72 NGC 6535 GlC 18 03 50.51 -00 17 51.5     9.85     ~ 320 0
73 NGC 6528 GlC 18 04 49.61 -30 03 20.8   12.12 10.65     ~ 561 0
74 NGC 6540 GlC 18 06 08.60 -27 45 55.0           ~ 145 0
75 NGC 6544 GlC 18 07 20.58 -24 59 50.4   11.36 9.90     ~ 332 0
76 [HJK2000] GC01 GlC 18 08 21.8 -19 49 47           ~ 69 0
77 NGC 6553 GlC 18 09 15.68 -25 54 27.9   9.08       ~ 644 0
78 NAME 2MASS-GC02 GlC 18 09 36.5 -20 46 44           ~ 67 0
79 NGC 6558 GlC 18 10 17.6 -31 45 50           ~ 265 0
80 IC 1276 GlC 18 10 44.26 -07 12 27.3           ~ 146 0
81 ESO 522-1 GlC 18 12 15.80 -22 44 31.0     14.86     ~ 114 1
82 NGC 6569 GlC 18 13 38.88 -31 49 35.2   10.78 9.47     ~ 276 0
83 ESO 456-78 GlC 18 14 06.600 -28 38 06.00           ~ 82 0
84 GLIMPSE C02 GlC 18 18 30.5 -16 58 38           ~ 20 0
85 PSR J1824-2452A Psr 18 24 32.009 -24 52 11.10           ~ 529 2
86 M 28 GlC 18 24 32.89 -24 52 11.4           ~ 821 0
87 2C 1569 Bla 18 29 31.7809732968 +48 44 46.160168892   17.05 16.81 16.860   ~ 713 1
88 NGC 6638 GlC 18 30 56.25 -25 29 47.1   10.81 9.68     ~ 258 0
89 M 69 GlC 18 31 23.10 -32 20 53.1           ~ 492 0
90 NGC 6642 GlC 18 31 54.23 -23 28 34.1   11.30 10.24     ~ 240 0
91 ESO 591-12 GlC 18 41 29.90 -19 49 33.0           ~ 130 0
92 M 70 GlC 18 43 12.76 -32 17 31.6           ~ 421 0
93 PSR J1848-0129A Psr 18 48 48.1 -01 29 58           ~ 2 0
94 GLIMPSE C01 GlC 18 48 49.7 -01 29 50           ~ 60 0
95 QSO J1851+005 QSO 18 51 46.72295 +00 35 32.3649           ~ 138 1
96 M 54 GlC 18 55 03.33 -30 28 47.5           ~ 1164 0
97 NGC 6717 GlC 18 55 06.04 -22 42 05.3           ~ 273 0
98 NGC 6723 GlC 18 59 33.15 -36 37 56.1           ~ 543 0
99 M 56 GlC 19 16 35.57 +30 11 00.5           ~ 455 0
100 Cl Terzan 7 GlC 19 17 43.92 -34 39 27.8           ~ 460 0
101 GCl 111 GlC 19 18 02.10 +18 34 18.0           ~ 138 0
102 Cl Arp 2 GlC 19 28 44.11 -30 21 20.3     12.41     ~ 384 0
103 PSR B1937+21.4 Psr 19 39 38.560096 +21 34 59.13552           ~ 1142 0
104 M 55 GlC 19 39 59.71 -30 57 53.1     6.49     ~ 913 0
105 Cl Terzan 8 GlC 19 41 44.41 -33 59 58.1     11.54     ~ 357 0
106 GCl 114 GlC 19 45 14.40 -08 00 26.0     7.54     ~ 165 0
107 M 75 GlC 20 06 04.841 -21 55 20.14     8.26     ~ 394 0
108 NGC 6934 GlC 20 34 11.37 +07 24 16.1           ~ 459 0
109 M 72 GlC 20 53 27.70 -12 32 14.3     8.96     ~ 465 0
110 NGC 7006 GlC 21 01 29.465 +16 11 16.49     10.46     ~ 562 0
111 Cl Pal 12 GlC 21 46 38.84 -21 15 09.4     11.89     ~ 548 0
112 GCl 124 GlC 23 06 44.48 +12 46 19.2   15.6       ~ 307 1
113 NGC 7492 GlC 23 08 26.68 -15 36 41.3     10.48     ~ 330 0

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