2018MNRAS.478.2835L


Query : 2018MNRAS.478.2835L

2018MNRAS.478.2835L - Mon. Not. R. Astron. Soc., 478, 2835-2849 (2018/August-1)

An all-sky survey of circular polarization at 200 MHz.

LENC E., MURPHY T., LYNCH C.R., KAPLAN D.L. and ZHANG S.N.

Abstract (from CDS):

We present results from the first all-sky radio survey in circular polarization. The survey uses the Murchison Widefield Array (MWA) to cover 30 900 sq deg, over declinations south of +30° and north of -86° centred at 200 MHz (over a 169-231 MHz band). We achieve a spatial resolution of ∼3 arcmin and a typical sensitivity of 3.0 mJy PSF–1 over most of the survey region. We demonstrate a new leakage mitigation technique that reduces the leakage from total intensity into circular polarization by an order of magnitude. In a blind survey of the imaged region, we detect 14 pulsars in circular polarization above a 6σ threshold. We also detect six transient sources associated with artificial satellites. A targeted survey of 2376 pulsars within the surveyed region yielded 33 detections above 4σ. Looking specifically at pulsars previously detected at 200 MHz in total intensity, this represents a 35 per cent detection rate. We also conducted a targeted survey of 2400 known flare stars, this resulted in two tentative detections above 4σ. A similar targeted search for 1506 known exoplanets in the field yielded no detections above 4σ. The success of the survey suggests that similar surveys at longer wavelength bands and of deeper fields are warranted.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): radio continuum: planetary systems - (stars:) pulsars: general - plasmas

Simbad objects: 88

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Number of rows : 88
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 PKS 0003-42 Rad 00 06 01.8 -42 34 40   19.5       ~ 12 1
2 PSR B0031-07 Psr 00 34 08.9100 -07 21 56.000           ~ 302 0
3 PSR J0034-05 Psr 00 34 21.8281 -05 34 36.620           ~ 170 0
4 G 272-61B Er* 01 39 01.6377185550 -17 57 01.001240728           M6V 827 0
5 PSR B0203-40 Psr 02 06 01.2930 -40 28 03.620           ~ 53 0
6 PMN J0257-2433 rG 02 57 27.6 -24 33 42           ~ 9 1
7 PSR J0437-47 Psr 04 37 15.7994581776 -47 15 08.544351636           DC 836 0
8 PSR B0450-18 Psr 04 52 34.1150 -17 59 23.300           ~ 175 0
9 HD 34445b Pl 05 17 40.9804357148 +07 21 12.054778345           ~ 19 1
10 NAME Pic A Sy1 05 19 49.7229323856 -45 46 43.852662732   15.73 15.77 14.85   ~ 613 1
11 3CR 139.2 Rad 05 24 27.1 +28 12 47           ~ 48 1
12 M 1 SNR 05 34 32 +22 00.8           ~ 5956 1
13 PSR B0628-28 Psr 06 30 49.3710 -28 34 42.200           ~ 278 0
14 PSR J0737-3039A Psr 07 37 51.24720 -30 39 40.6700           ~ 249 1
15 PSR B0736-40 Psr 07 38 32.2620 -40 42 39.420           ~ 181 0
16 PSR B0740-28 Psr 07 42 49.0730 -28 22 43.510           ~ 379 0
17 V* YZ CMi Er* 07 44 40.1723046464 +03 33 08.875227574 13.761 12.831 11.225 9.958 8.263 M4.0Ve 840 0
18 PSR B0744-53 Psr 07 45 02.3 -53 51 22           ~ 51 0
19 PSR B0808-47 Psr 08 09 43.8350 -47 53 54.700           ~ 45 0
20 PSR B0818-41 Psr 08 20 15.4500 -41 14 35.300           ~ 76 0
21 PSR B0818-13 Psr 08 20 26.4020 -13 50 56.400           ~ 195 0
22 PSR B0823+26 Psr 08 26 51.438 +26 37 22.83           ~ 487 1
23 PSR B0826-34 Psr 08 28 16.6 -34 17 07           ~ 142 0
24 NAME Vela Pulsar Psr 08 35 20.65525 -45 10 35.1545     15.10     ~ 2219 1
25 PSR B0834+06 Psr 08 37 05.642 +06 10 14.56           ~ 411 0
26 PSR B0835-41 Psr 08 37 21.1943 -41 35 14.563     12.69     ~ 131 0
27 PSR B0839-53 Psr 08 40 33.7500 -53 32 35.920           ~ 38 0
28 PSR B0853-33 Psr 08 55 38.4000 -33 31 39.000           ~ 44 0
29 PSR B0855-61 Psr 08 56 59.31 -61 37 53.3           ~ 25 0
30 PSR J0905-5127 Psr 09 05 51.922 -51 27 48.71           ~ 36 0
31 PSR B0905-51 Psr 09 07 15.9110 -51 57 59.210           ~ 68 0
32 NAME Hya A LIN 09 18 05.6783347248 -12 05 43.634531472   14.38 14.8     ~ 964 1
33 PSR B0919+06 Psr 09 22 14.1600 +06 38 28.800           ~ 269 0
34 PSR B0922-52 Psr 09 24 08.69 -53 02 44.2           ~ 36 0
35 PSR B0940-55 Psr 09 42 15.83 -55 52 52.3           ~ 81 0
36 PSR B0941-56 Psr 09 42 54.4240 -56 57 43.210           ~ 41 0
37 PSR B0950+08 Psr 09 53 09.2970 +07 55 36.400           ~ 725 2
38 PSR B0957-47 Psr 09 59 26.26 -48 09 47.5           ~ 34 0
39 PSR B0959-54 Psr 10 01 37.7941120344 -55 07 08.599924956           ~ 91 0
40 PSR B1010-23 Psr 10 12 33.72 -23 38 22.4           ~ 31 0
41 BD+20 2465 Er* 10 19 36.2808181226 +19 52 12.010446571   10.82 9.52 9.19   dM3 1242 0
42 PSR J1047-3032 Psr 10 47 00.813 -30 32 18.00           ~ 14 0
43 PSR B1055-52 Psr 10 57 59.0450 -52 26 56.330           ~ 701 0
44 PSR B1114-41 Psr 11 16 43.0830 -41 22 44.800           ~ 48 0
45 PSR B1119-54 Psr 11 21 19.0900 -54 44 05.100           ~ 27 0
46 PSR B1133+16 Psr 11 36 03.0720 +15 51 15.500           ~ 639 0
47 * 12 Mus RS* 11 39 29.59368 -65 23 51.9586   5.863 5.095 6.31   G5/8IIIp+A0/1V 159 1
48 PSR B1154-62 Psr 11 57 15.2070 -62 24 50.930           ~ 98 0
49 PSR B1237+25 Psr 12 39 40.386 +24 53 49.87           ~ 441 0
50 PSR B1323-62 Psr 13 27 17.1760 -62 22 45.460           ~ 83 0
51 PSR B1356-60 Psr 13 59 58.2480 -60 38 07.550           ~ 111 0
52 NAME Proxima Centauri b Pl 14 29 42.9451234609 -62 40 46.170818907           ~ 299 0
53 NAME Proxima Centauri Er* 14 29 42.9461331854 -62 40 46.164680672 14.21 12.95 11.13 9.45 7.41 M5.5Ve 1159 0
54 PSR B1426-66 Psr 14 30 40.7350 -66 23 05.550           ~ 80 0
55 PSR B1449-64 Psr 14 53 32.6546 -64 13 16.047           ~ 136 0
56 PSR B1451-68 Psr 14 56 00.0175876848 -68 43 40.034742348           ~ 178 0
57 PSR B1540-06 Psr 15 43 30.1579 -06 20 45.250           ~ 105 0
58 PSR B1541+09 Psr 15 43 38.815 +09 29 16.50           ~ 187 0
59 V* V913 Sco Ro* 15 58 34.8665694960 -24 49 53.361727284 4.70 5.34 5.43     B5V 195 0
60 PSR B1557-50 Psr 16 00 53.0150 -50 44 21.300           ~ 102 0
61 PSR B1604-00 Psr 16 07 12.1034 -00 32 40.830           ~ 208 0
62 PSR J1643-1224 Psr 16 43 38.15583 -12 24 58.7200           ~ 184 1
63 PSR B1642-03 Psr 16 45 02.0330 -03 17 57.200           ~ 339 0
64 NAME Hercules A rG 16 51 07.9886687784 +04 59 35.547131472     18.25     ~ 448 1
65 PSR B1648-17 Psr 16 51 31.75 -17 09 22.0           ~ 41 0
66 PSR B1648-42 Psr 16 51 48.7700 -42 46 09.400           ~ 56 0
67 PSR B1703-40 Psr 17 07 21.7500 -40 53 57.000           ~ 44 0
68 PSR B1718-32 Psr 17 22 02.9590 -32 07 45.300           ~ 79 0
69 PSR B1727-47 Psr 17 31 42.103 -47 44 34.56           ~ 136 0
70 PSR B1749-28 Psr 17 52 58.7130 -28 06 33.900           ~ 247 0
71 PSR J1810+17 Psr 18 10 37.2791131488 +17 44 37.425884136           ~ 89 0
72 PSR B1818-04 Psr 18 20 52.5920 -04 27 37.120           ~ 198 0
73 PSR B1821-19 Psr 18 24 00.4725 -19 45 51.600           ~ 82 0
74 PSR J1824-2452A Psr 18 24 32.009 -24 52 11.10           ~ 466 2
75 PSR J1834-0731 Psr 18 34 16.0 -07 31 07           ~ 20 0
76 PSR B1832-06 Psr 18 35 05.561 -06 43 06.40     13.18     ~ 52 0
77 PSR J1842-0612 Psr 18 42 43.1 -06 12 36           ~ 3 0
78 PSR B1857-26 Psr 19 00 47.5440 -26 00 44.200           ~ 165 0
79 PSR B1911-04 Psr 19 13 54.1820 -04 40 47.600           ~ 163 0
80 PSR B1919+21 Psr 19 21 44.815 +21 53 02.25           ~ 368 0
81 PSR B1929+10 Psr 19 32 14.0570 +10 59 33.380           ~ 725 0
82 PSR B2045-16 Psr 20 48 35.7700 -16 16 47.000           ~ 301 0
83 PSR B2048-72 Psr 20 53 47.2830 -72 00 42.450           ~ 49 0
84 PSR B2152-31 Psr 21 55 13.6100 -31 18 52.800           ~ 49 0
85 2MASX J22142575-1701362 G 22 14 25.752 -17 01 36.29     17.8     ~ 159 1
86 PSR J2241-5236 Psr 22 41 42.03161 -52 36 36.2492           ~ 90 1
87 PSR J2256-1024 Psr 22 56 56.390 -10 24 34.37           ~ 45 0
88 PSR B2327-20 Psr 23 30 26.9740 -20 05 29.500           ~ 113 0

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2022.09.28-02:00:20

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