2024MNRAS.530.3552L

Query : 2024MNRAS.530.3552L

2024MNRAS.530.3552L - Mon. Not. R. Astron. Soc., 530, 3552-3569 (2024/June-1)

The effect of pulsar geometry on the observed gamma-ray spectrum of millisecond pulsars.

LLOYD S.J., CHADWICK P.M. and BROWN A.M.

Abstract (from CDS):

We analyse 13 yr of Fermi Large Area Telescope Pass 8 events from 127 gamma-ray emitting millisecond pulsars (MSPs) in the energy range 0.1-100 GeV and significantly detect 118 MSPs. We fit the stacked emission with a log parabola (LP) spectral model that we show is preferred to two previously published models. We consider the influence of pulsar properties and observed geometric effects on spectral features by defining energy flux colours for both the individual MSPs, and our stacked model as a baseline. There is no correlation of colours with pulsar luminosity, $\dot{E}$, surface magnetic field, or magnetic impact angle. We also find that pulsar geometry has little effect on the observed gamma-ray spectrum, which is in tension with previous modelling of gamma-ray emission with respect to pulsar geometry. Our LP MSP model is applicable to problems where an ensemble of gamma-ray MSPs is considered, such as that of the Galactic Centre excess or in the case of emission from globular clusters.

Abstract Copyright: © 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): astroparticle physics - pulsars: general - gamma-rays: general

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 129

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Number of rows : 129
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 J0023+0923 Psr 00 23 16.890 +09 23 24.18           ~ 137 0
2 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 4158 0
3 PSR J0030+0451 Psr 00 30 27.42348 +04 51 39.7144           ~ 596 1
4 PSR J0034-05 Psr 00 34 21.8281 -05 34 36.620           ~ 201 0
5 PSR J0101-6422 Psr 01 01 11.1163 -64 22 30.171           ~ 63 0
6 PSR J0103+48 Psr 01 02 50.6687164 +48 39 42.769776           ~ 41 0
7 PSR J0154+1833 Psr 01 54 36.88273 +18 33 50.7580           ~ 14 0
8 PSR J0218+42 Psr 02 18 06.3604 +42 32 17.365           ~ 365 2
9 PSR J0248+4230 Psr 02 48 30.9841919 +42 30 20.516968           ~ 20 0
10 PSR J0251+2606 Psr 02 51 02.5204468 +26 06 09.937134           ~ 39 0
11 PSR J0308+7442 Psr 03 07 55.8956909 +74 43 13.432617           ~ 30 1
12 2FGL J0312.5-0914 gam 03 12 06.2 -09 21 56           ~ 39 0
13 PSR J0318+0253 Psr 03 18 15.54 +02 53 01.5           ~ 32 0
14 PSR J0340+41 Psr 03 40 23.2887 +41 30 45.300           ~ 91 0
15 PSR J0418+6635 Psr 04 18 47.9809570 +66 35 24.728393           ~ 19 0
16 PSR J0437-47 Psr 04 37 15.7994581776 -47 15 08.544351636           DC 1032 0
17 PSR J0533+6759 Psr 05 33 55.1422119 +67 59 17.482910           ~ 26 0
18 PSR J0605+3757 Psr 06 05 05.5444336 +37 57 35.996704           ~ 42 0
19 PSR J0610-2100 Psr 06 10 13.602953 -21 00 27.74435           ~ 116 0
20 PSR B0613-02.0 Psr 06 13 43.977070 -02 00 47.34294           ~ 319 1
21 PSR J0614-3329 Psr 06 14 10.3479 -33 29 54.116           ~ 134 1
22 PSR J0621+2514 Psr 06 21 10.8471680 +25 14 03.839264           ~ 24 0
23 PSR J0636+5129 Psr 06 36 04.84645 +51 28 59.9625           ~ 101 0
24 PSR J0653+4706 Psr 06 53 05.8135986 +47 06 26.924744           ~ 9 0
25 PSR J0737-3039A Psr 07 37 51.24669 -30 39 40.6895           ~ 317 1
26 PSR J0740+6620 Psr 07 40 45.799 +66 20 33.60           ~ 395 0
27 PSR J0751+1807 Psr 07 51 09.1539 +18 07 38.335           ~ 316 1
28 PSR J0931-1902 Psr 09 31 19.116246 -19 02 55.05445           ~ 60 0
29 PSR J0952-0607 Psr 09 52 08.319 -06 07 23.49           ~ 103 0
30 PSR J0955-6150 Psr 09 55 20.847467 -61 50 16.89532           ~ 42 0
31 PSR J1012-4235 Psr 10 12 12.938801 -42 35 53.40253           ~ 36 0
32 PSR J1025-07 Psr 10 24 38.6991893112 -07 19 19.045523388     19.81 18.78 18.00 ~ 286 1
33 PSR J1035-6720 Psr 10 35 27.600 -67 20 15.36           ~ 34 0
34 PSR J1036-8317 Psr 10 36 40.7293622905 -83 17 56.201595421           ~ 22 0
35 PSR J1048+2339 Psr 10 48 43.4339582160 +23 39 53.577436140     19.47     ~ 82 0
36 PSR J1124-36 Psr 11 24 01.1169434 -36 53 19.108887           ~ 63 0
37 PSR J1125-58 Psr 11 25 44.352943 -58 25 16.85965           ~ 55 1
38 PSR J1125-6014 Psr 11 25 55.243299 -60 14 06.80942           ~ 61 0
39 PSR J1137+7528 Psr 11 37 02.0581055 +75 28 02.308960           ~ 16 0
40 PSR J1142+01 Psr 11 42 50.1342774 +01 19 35.400210           ~ 29 1
41 PSR J1207-5050 Psr 12 07 21.811 -50 50 30.00           ~ 36 0
42 PSR J1221-0633 Psr 12 21 24.76 -06 33 51.7           ~ 40 0
43 XSS J12270-4859 Psr 12 27 58.7476831464 -48 53 42.824592960           ~ 321 0
44 PSR J1231-1411 Psr 12 31 11.3069 -14 11 43.628           ~ 139 0
45 PSR J1301+0833 Psr 13 01 38.26 +08 33 57.5           ~ 56 0
46 PSR J1302-32 Psr 13 02 25.5358887 -32 58 36.833496           ~ 35 0
47 PSR J1311-3430 Psr 13 11 45.7292612136 -34 30 30.294149760   21.0   18.8   ~ 181 1
48 PSR J1312+00 Psr 13 12 46.6406250 +00 51 00.071969           ~ 41 0
49 PSR J1327-0755 Psr 13 27 57.58052 -07 55 29.9180           ~ 25 0
50 PSR J1335-5656 Psr 13 35 58.53 -57 00 54.6           ~ 21 0
51 PSR J1400-1431 Psr 14 00 37.00370 -14 31 47.0422           ~ 49 0
52 PSR J1431-4715 Psr 14 31 44.6313693632 -47 15 27.399549133           ~ 49 0
53 PSR J1446-4701 Psr 14 46 35.709721 -47 01 26.79678           ~ 82 1
54 PSR J1455-3300 Psr 14 55 47.976991 -33 30 46.40280           ~ 165 1
55 PSR J1513-2550 Psr 15 13 23.32059 -25 50 31.2850           ~ 35 0
56 PSR J1514-4946 Psr 15 14 19.1142 -49 46 15.528           ~ 55 0
57 PSR J1536-49 Psr 15 36 23.2214355 -49 48 54.681702           ~ 37 1
58 PSR J1543-5149 Psr 15 43 44.145289 -51 49 54.71350           ~ 41 1
59 PSR J1544+4937 Psr 15 44 04.166 +49 37 57.45           ~ 89 1
60 PSR J1552+5437 Psr 15 52 53.33117 +54 37 05.7866           ~ 27 0
61 PSR J1555-2908 Psr 15 55 40.6585535732 -29 08 28.423239347           ~ 37 0
62 PSR J1600-3053 Psr 16 00 51.902514 -30 53 49.45343           ~ 218 0
63 PSR J1614-2230 Psr 16 14 36.50974 -22 30 31.5420           ~ 452 1
64 PSR J1622-0315 Psr 16 22 59.6408643864 -03 15 37.303251262           ~ 48 0
65 PSR J1625-0021 Psr 16 25 10.469 -00 21 26.73           ~ 35 0
66 PSR J1628-3205 Psr 16 28 07.0056152 -32 05 48.966980           ~ 66 0
67 PSR J1630+3734 Psr 16 30 36.4672852 +37 34 42.101440           ~ 48 0
68 PSR J1640+2224 Psr 16 40 16.744850 +22 24 08.84119           ~ 210 0
69 PSR J1641+8049 Psr 16 41 20.843 +80 49 52.90           ~ 36 0
70 PSR J1649-3012 Psr 16 49 46.3146973 -30 12 21.199494           ~ 20 0
71 PSR J1653-0158 Psr 16 53 38.0717183664 -01 58 36.843092004   20.4   19.4   ~ 102 0
72 PSR J1658-5324 Psr 16 58 39.343556 -53 24 06.97315           ~ 47 0
73 PSR J1713+0747 Psr 17 13 49.5367813 +07 47 37.450240           ~ 530 1
74 PSR J1730-2304 Psr 17 30 21.68471 -23 04 31.2590           ~ 194 1
75 PSR J1732-5049 Psr 17 32 47.766068 -50 49 00.31465           ~ 87 0
76 PSR J1741+1351 Psr 17 41 31.1499024 +13 51 44.279709           ~ 122 0
77 PSR J1744-7619 Psr 17 44 00.993 -76 19 13.95           ~ 36 0
78 PSR J1744-1134 Psr 17 44 29.4220844 -11 34 54.801320           ~ 323 1
79 PSR J1745+1017 Psr 17 45 33.8371 +10 17 52.523           ~ 70 0
80 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
81 PSR J1747-4036 Psr 17 47 48.715690 -40 36 54.79950           ~ 83 0
82 PSR J1805+0615 Psr 18 05 42.3999024 +06 15 18.359184           ~ 33 0
83 PSR J1810+17 Psr 18 10 37.2791131488 +17 44 37.425884136           ~ 147 1
84 PSR J1811-2405 Psr 18 11 19.854352 -24 05 18.42800           ~ 56 1
85 PSR J1816+4510 Psr 18 16 35.9342957160 +45 10 33.917516328           ~ 126 0
86 PSR J1820-30A Psr 18 23 40.4842 -30 21 39.920           ~ 168 1
87 PSR J1824+1014 Psr 18 24 20.5004883 +10 16 29.555740           ~ 18 0
88 PSR J1824-2452A Psr 18 24 32.009 -24 52 11.10           ~ 529 2
89 PSR J1827-0849 Psr 18 27 36.3354492 -08 49 42.279968           ~ 19 0
90 PSR J1832-0836 Psr 18 32 27.589497 -08 36 55.14540           ~ 86 0
91 PSR J1833-3840 Psr 18 33 04.58231 -38 40 46.0720           ~ 20 0
92 PSR J1843-1113 Psr 18 43 41.260405 -11 13 31.10310           ~ 86 0
93 PSR J1855-1436 Psr 18 55 54.2285156 -14 36 08.999863           ~ 14 0
94 PSR J1858-2216 Psr 18 58 04.42 -22 19 13.7           ~ 39 0
95 PSR J1901-0125 Psr 19 01 33.7280274 -01 25 29.276276           ~ 14 0
96 PSR J1902-5105 Psr 19 02 02.8476 -51 05 56.969           ~ 64 0
97 PSR J1903-7051 Psr 19 03 38.783931 -70 51 43.58175           ~ 39 0
98 PSR J1908+2105 Psr 19 09 32.0 +21 02 56           ~ 30 0
99 PSR J1909-3744 Psr 19 09 47.42820 -37 44 14.7740           ~ 343 2
100 PSR J1921+1929 Psr 19 21 23.35070 +19 29 22.2990           ~ 19 0
101 PSR J1921+0137 Psr 19 21 30.2856445 +01 37 22.800093           ~ 25 0
102 PSR B1937+21.4 Psr 19 39 38.560096 +21 34 59.13552           ~ 1142 0
103 PSR J1946+3417 Psr 19 46 25.13182 +34 17 14.6770           ~ 64 0
104 PSR J1946-5403 Psr 19 46 34.4933990 -54 03 42.558670           ~ 45 0
105 PSR J1959+2048 Psr 19 59 36.7643141520 +20 48 14.896407996   21.08 20.16 19.53 18.79 G: 854 3
106 PSR J2006+0148 Psr 20 06 29.0405274 +01 48 54.000206           ~ 23 0
107 PSR J2017+0603 Psr 20 17 22.7048 +06 03 05.585           ~ 120 1
108 PSR J2017-1614 Psr 20 17 45.12 -16 18 21.1           ~ 40 1
109 PSR J2034+3632 Psr 20 34 59.9926758 +36 32 20.721130           ~ 30 0
110 3FGL J2038.8-3613 Bla 20 39 16.580827 -36 16 17.23958           ~ 24 0
111 PSR J2039-5617 Psr 20 39 34.9609502672 -56 17 09.033104197           ~ 84 0
112 PSR J2042+0246 Psr 20 42 00.0000000 +02 47 59.999828           ~ 23 0
113 PSR J2043+1711 Psr 20 43 20.8828 +17 11 28.941           ~ 129 1
114 PSR J2047+1053 Psr 20 47 00.000 +10 53 00.00           ~ 47 0
115 V* LY Aqr Psr 20 51 07.52058 -08 27 37.6100           ~ 236 2
116 PSR J2052+1219 Psr 20 52 47.77844 +12 19 59.0281           ~ 42 0
117 PSR J2115+5448 Psr 21 15 11.7678 +54 48 45.154           ~ 30 0
118 PSR J2124-3358 Psr 21 24 43.834930 -33 58 45.49195           ~ 337 1
119 PSR J2129-04 Psr 21 29 45.0469239408 -04 29 06.973600236     16.68     ~ 100 0
120 PSR J2205+6012 Psr 22 05 34.0795898 +60 12 54.000549           ~ 13 0
121 PSR J2214+3000 Psr 22 14 38.8480 +30 00 38.209           ~ 136 0
122 PSR J2215+51 Psr 22 15 32.6869149432 +51 35 36.400854912           ~ 176 0
123 PSR J2234+0944 Psr 22 34 46.856913 +09 44 30.04150           ~ 82 0
124 PSR J2241-5236 Psr 22 41 42.03161 -52 36 36.2492           ~ 143 1
125 PSR J2256-1024 Psr 22 56 56.390 -10 24 34.37           ~ 88 0
126 PSR J2302+4442 Psr 23 02 46.9789 +44 42 22.102           ~ 124 0
127 PSR J2310-0555 Psr 23 10 06.4379883 -05 55 36.084366           ~ 19 0
128 PSR J2317+1439 Psr 23 17 09.235606 +14 39 31.29559           ~ 211 1
129 PSR J2339-0533 Psr 23 39 38.7412778376 -05 33 05.108592528     18.48     ~ 149 0

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