2020A&A...635A..76B

Query : 2020A&A...635A..76B

2020A&A...635A..76B - Astronomy and Astrophysics, volume 635A76-76 (2020/3-1)

A census of the pulsar population observed with the international LOFAR station FR606 at low frequencies (25-80 MHz).

BONDONNEAU L., GRIESSMEIER J.-M., THEUREAU G., BILOUS A.V., KONDRATIEV V.I., SERYLAK M., KEITH M.J. and LYNE A.G.

Abstract (from CDS):


Context. To date, only 69 pulsars have been identified with a detected pulsed radio emission below 100MHz. A LOFAR-core LBA census and a dedicated campaign with the Nancay LOFAR station in stand-alone mode were carried out in the years 2014-2017 in order to extend the known population in this frequency range.
Aims. In this paper, we aim to extend the sample of known radio pulsars at low frequencies and to produce a catalogue in the frequency range of 25-80MHz. This will allow future studies to probe the local Galactic pulsar population, in addition to helping explain their emission mechanism, better characterising the low-frequency turnover in their spectra, and obtaining new information about the interstellar medium through the study of dispersion, scattering, and scintillation.
Methods. We observed 102 pulsars that are known to emit radio pulses below 200MHz and with declination above -30°. We used the Low Band Antennas (LBA) of the LOw Frequency ARray (LOFAR) international station FR606 at the Nancay Radio Observatory in stand-alone mode, recording data between 25 and 80MHz.
Results. Out of our sample of 102 pulsars, we detected 64. We confirmed the existence of ten pulsars detected below 100MHz by the LOFAR LBA census for the first time (Bilous et al. 2020A&A...635A..75B) and we added two more pulsars that had never before been detected in this frequency range. We provided average pulse profiles, DM values, and mean flux densities (or upper limits in the case of non-detections). The comparison with previously published results allows us to identify a hitherto unknown spectral turnover for five pulsars, confirming the expectation that spectral turnovers are a widespread phenomenon.

Abstract Copyright: © L. Bondonneau et al. 2020

Journal keyword(s): pulsars: general - telescopes - ISM: general

VizieR on-line data: <Available at CDS (J/A+A/635/A76): table1.dat tablea1.dat profiles/*>

Simbad objects: 105

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Number of rows : 105
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 B0011+47 Psr 00 14 17.75 +47 46 33.4           ~ 67 0
2 PSR J0030+0451 Psr 00 30 27.42348 +04 51 39.7144           ~ 596 1
3 PSR B0031-07 Psr 00 34 08.9100 -07 21 56.000           ~ 350 0
4 PSR J0034-05 Psr 00 34 21.8281 -05 34 36.620           ~ 201 0
5 PSR J0051+0423 Psr 00 51 30.1 +04 22 49           ~ 24 0
6 PSR B0053+47 Psr 00 56 25.51 +47 56 10.5           ~ 36 0
7 PSR B0105+65 Psr 01 08 22.5049 +66 08 34.499           ~ 81 0
8 PSR B0114+58 Psr 01 17 38.661 +59 14 38.39           ~ 96 0
9 PSR B0136+57 Psr 01 39 19.744 +58 14 31.73     13.41     ~ 163 0
10 PSR B0138+59 Psr 01 41 39.938 +60 09 32.30     12.85     ~ 120 0
11 PSR B0149-16 Psr 01 52 10.85400 -16 37 53.6300           ~ 130 0
12 PSR B0226+70 Psr 02 31 13.990 +70 26 33.88           ~ 35 0
13 PSR B0301+19 Psr 03 04 33.115 +19 32 51.40           ~ 247 0
14 PSR B0320+39 Psr 03 23 26.6619 +39 44 52.403           ~ 139 0
15 PSR J0324+5239 Psr 03 24 55.46 +52 39 31.3           ~ 9 0
16 PSR B0329+54 Psr 03 32 59.3370698592 +54 34 45.028206408           ~ 690 1
17 PSR B0355+54 Psr 03 58 53.7165 +54 13 13.727           ~ 465 1
18 PSR B0410+69 Psr 04 15 55.653 +69 54 09.89           ~ 46 0
19 PSR J0437-47 Psr 04 37 15.7994581776 -47 15 08.544351636           DC 1032 0
20 PSR B0450+55 Psr 04 54 07.709 +55 43 41.51           ~ 174 0
21 PSR B0525+21 Psr 05 28 52.308 +22 00 01.00     14.30     ~ 370 0
22 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0
23 PSR B0540+23 Psr 05 43 09.65 +23 29 06.1     14.40     ~ 278 0
24 PSR J0611+30 Psr 06 11 00.4 +30 13 58           ~ 20 0
25 PSR B0609+37 Psr 06 12 44.087 +37 21 40.20           ~ 62 0
26 PSR B0611+22 Psr 06 14 17.0324288405 +22 29 57.017874999           ~ 285 0
27 PSR B0626+24 Psr 06 29 05.7273 +24 15 41.546           ~ 123 0
28 PSR B0628-28 Psr 06 30 49.35000 -28 34 42.1000           ~ 313 1
29 PSR B0643+80 Psr 06 53 15.090 +80 52 00.22           ~ 65 0
30 PSR B0656+14 Psr 06 59 48.18800 +14 14 19.2000   24.85 24.90     ~ 943 1
31 PSR B0655+64 Psr 07 00 37.802 +64 18 11.20           ~ 250 1
32 PSR B0809+74 Psr 08 14 59.500 +74 29 05.70           ~ 425 0
33 PSR B0818-13 Psr 08 20 26.40700 -13 50 56.3200           ~ 229 0
34 PSR B0823+26 Psr 08 26 51.5068 +26 37 21.297           ~ 541 1
35 PSR B0834+06 Psr 08 37 05.64620 +06 10 15.8700           ~ 472 0
36 PSR B0906-17 Psr 09 08 38.22700 -17 39 39.9000           ~ 100 0
37 PSR B0917+63 Psr 09 21 14.135 +62 54 13.91           ~ 42 0
38 PSR B0919+06 Psr 09 22 13.85000 +06 38 19.0000           ~ 329 1
39 PSR J0927+23 Psr 09 27 37 +23 47.0           ~ 16 0
40 PSR J0943+22 Psr 09 43 25 +22 56.0           ~ 23 0
41 PSR B0940+16 Psr 09 43 30.10 +16 31 37.0           ~ 79 0
42 PSR B0943+10 Psr 09 46 07.31 +09 51 57.3           ~ 364 1
43 PSR J0947+27 Psr 09 47 22 +27 42.0           ~ 18 0
44 PSR B0950+08 Psr 09 53 09.31210 +07 55 36.9000           ~ 806 2
45 PSR B1112+50 Psr 11 15 38.400 +50 30 12.29           ~ 154 0
46 PSR B1133+16 Psr 11 36 03.09460 +15 51 15.9000           ~ 715 0
47 PSR J1238+21 Psr 12 38 23.17 +21 52 11.1           ~ 23 0
48 PSR B1237+25 Psr 12 39 40.386 +24 53 49.87           ~ 497 1
49 PSR J1313+0931 Psr 13 13 23.0 +09 31 56           ~ 21 0
50 PSR B1322+83 Psr 13 21 45.6315 +83 23 39.432           ~ 70 0
51 PSR J1503+2111 Psr 15 03 54.60 +21 11 09.3           ~ 24 0
52 PSR B1508+55 Psr 15 09 25.674 +55 31 32.90           ~ 322 1
53 PSR B1530+27 Psr 15 32 10.3646 +27 45 49.623           ~ 122 0
54 PSR B1540-06 Psr 15 43 30.1373 -06 20 45.332           ~ 131 1
55 PSR B1541+09 Psr 15 43 38.82000 +09 29 16.4000           ~ 215 1
56 PSR B1604-00 Psr 16 07 12.078 -00 32 40.98           ~ 228 1
57 PSR J1612+2008 Psr 16 12 23.432 +20 08 18.33           ~ 12 0
58 PSR B1612+07 Psr 16 14 40.906 +07 37 31.00           ~ 101 0
59 PSR J1627+1419 Psr 16 27 18.759 +14 19 20.70           ~ 24 0
60 PSR B1633+24 Psr 16 35 25.781 +24 18 47.30           ~ 74 0
61 PSR B1642-03 Psr 16 45 02.0330 -03 17 57.200           ~ 394 0
62 PSR J1645+1012 Psr 16 45 34.415 +10 12 16.04           ~ 20 0
63 PSR J1649+2533 Psr 16 49 44.23 +25 33 07.0           ~ 33 0
64 PSR B1706-16 Psr 17 09 26.45200 -16 40 59.2000           ~ 247 0
65 PSR J1720+2150 Psr 17 20 01.30 +21 50 12.8           ~ 22 0
66 PSR B1737+13 Psr 17 40 07.3455 +13 11 56.690           ~ 191 0
67 PSR J1740+1000 Psr 17 40 25.91 +10 00 06.0           ~ 110 0
68 PSR J1741+2758 Psr 17 41 53.51 +27 58 09.0           ~ 26 0
69 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
70 PSR B1749-28 Psr 17 52 58.70700 -28 06 36.0000           ~ 277 1
71 PSR J1758+3030 Psr 17 58 25.88 +30 30 24.0           ~ 30 0
72 PSR B1811+40 Psr 18 13 13.281 +40 13 39.03           ~ 67 0
73 PSR B1822-09 Psr 18 25 30.62000 -09 35 22.0000           ~ 382 0
74 PSR B1839+56 Psr 18 40 44.5372 +56 40 54.852           ~ 109 1
75 PSR B1839+09 Psr 18 41 55.92100 +09 12 07.2900           ~ 134 0
76 PSR B1842+14 Psr 18 44 54.8946 +14 54 14.120           ~ 127 0
77 PSR J1851-0053 Psr 18 51 03.17 -00 53 07.3           ~ 16 0
78 PSR B1905+39 Psr 19 07 34.656 +40 02 05.71           ~ 93 0
79 PSR J1908+0734 Psr 19 08 17.010 +07 34 14.36           ~ 37 0
80 PSR B1919+21 Psr 19 21 44.815 +21 53 02.25           ~ 411 0
81 PSR B1929+10 Psr 19 32 14.0570 +10 59 33.380           ~ 801 0
82 PSR J1933+2421 Psr 19 33 37.83 +24 36 39.6           ~ 157 0
83 PSR B1944+17 Psr 19 46 53.044 +18 05 41.24           ~ 252 0
84 PSR B1946+35 Psr 19 48 25.0067 +35 40 11.057           ~ 180 0
85 PSR B1952+29 Psr 19 54 22.5107 +29 23 16.150           ~ 149 0
86 PSR B1953+50 Psr 19 55 18.7637 +50 59 55.292           ~ 90 0
87 PSR B2016+28 Psr 20 18 03.8999255016 +28 39 54.940329468           ~ 374 0
88 PSR B2020+28 Psr 20 22 37.0671 +28 54 23.104           ~ 330 1
89 PSR B2021+51 Psr 20 22 49.8730 +51 54 50.233           ~ 288 1
90 PSR J2043+2740 Psr 20 43 43.5 +27 40 56           ~ 137 0
91 PSR B2053+21 Psr 20 55 39.151 +22 09 27.22           ~ 55 0
92 PSR B2110+27 Psr 21 13 04.3506 +27 54 01.160           ~ 115 0
93 PSR J2139+2242 Psr 21 39 26.90 +22 42 42.0           ~ 30 0
94 PSR B2145-07.8 Psr 21 45 50.45590 -07 50 18.5900           ~ 336 0
95 PSR B2148+63 Psr 21 49 58.7033 +63 29 44.277           ~ 96 0
96 PSR B2154+40 Psr 21 57 01.840 +40 17 45.89           ~ 155 0
97 PSR B2217+47 Psr 22 19 48.139 +47 54 53.93           ~ 230 0
98 PSR B2223+65 Psr 22 25 52.8627 +65 35 36.371           ~ 342 0
99 PSR B2227+61 Psr 22 29 41.834 +62 05 36.02           ~ 47 0
100 PSR B2303+30 Psr 23 05 58.3212 +31 00 01.281           ~ 216 0
101 PSR B2306+55 Psr 23 08 13.822 +55 47 36.03           ~ 70 0
102 PSR B2310+42 Psr 23 13 08.5976 +42 53 12.987           ~ 147 0
103 PSR B2315+21 Psr 23 17 57.8419 +21 49 48.019           ~ 119 0
104 NAME Cas A SNR 23 23 26.0 +58 48 41     14.30     ~ 3033 1
105 PSR B2327-20 Psr 23 30 26.98600 -20 05 29.7500           ~ 133 0

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