2011MNRAS.412..634B

Query : 2011MNRAS.412..634B

2011MNRAS.412..634B - Mon. Not. R. Astron. Soc., 412, 634-664 (2011/March-3)

A 22-yr southern sky survey for transient and variable radio sources using the Molonglo Observatory Synthesis Telescope.

BANNISTER K.W., MURPHY T., GAENSLER B.M., HUNSTEAD R.W. and CHATTERJEE S.

Abstract (from CDS):

We describe a 22-yr survey for variable and transient radio sources, performed with archival images taken with the Molonglo Observatory Synthesis Telescope (MOST). This survey covers 2776 deg2 of the sky south of δ < -30° at an observing frequency of 843 MHz, an angular resolution of 45 {x} 45 cosec| δ| arcsec2 and a sensitivity of 5σ≥ 14 mJy/beam. We describe a technique to compensate for image gain error, along with statistical techniques to check and classify variability in a population of light curves, with applicability to any image-based radio variability survey. Among radio light curves for almost 30 000 sources, we present 53 highly variable sources and 15 transient sources. Only three of the transient sources, and none of the variable sources, have been previously identified as transient or variable. Many of our variable sources are suspected scintillating active galactic nuclei. We have identified three variable sources and one transient source that are likely to be associated with star-forming galaxies at z≃ 0.05, but whose implied luminosity is higher than the most luminous known radio supernova (SN1979C) by an order of magnitude. We also find a class of variable and transient source with no optical counterparts.

Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): techniques: image processing - catalogues - stars: flare - pulsars: general - supernovae: general - radio continuum: general

Nomenclature: Tables 6-7: [BMG2011] JHHMMSS+DDMMSS N=7.

Errata: erratum vol. 418, p.2813 (2011)

Simbad objects: 83

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Number of rows : 83
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 SUMSS J000716-793206 Rad 00 07 16.0 -79 32 00           ~ 1 1
2 PMN J0019-8111 Rad 00 18 58.56 -81 11 34.5           ~ 3 2
3 SUMSS J003722-421508 Rad 00 37 22.0 -42 15 12           ~ 1 1
4 PMN J0044-3752 Bla 00 44 17.0454611709 -37 52 59.228791899           ~ 8 1
5 SUMSS J010426-400412 Rad 01 04 26.0 -40 04 09           ~ 3 1
6 ACO 2877 ClG 01 09 49.3 -45 54 02           ~ 160 2
7 LEDA 73717 GiC 01 10 19.8899138112 -45 51 18.222092424   15.62       ~ 23 1
8 ATESP J011136-394336 Rad 01 11 36.07 -39 43 36.0           ~ 2 1
9 NAME Phoenix Deep Field reg 01 14 -45.7           ~ 27 0
10 PMN J0118-4527 Rad 01 18 39.40197 -45 26 58.5483           ~ 4 2
11 SUMSS J012615-561946 Rad 01 26 15.0 -56 19 47           ~ 1 1
12 PMN J0130-7420 Rad 01 30 12.9 -74 20 24           ~ 7 2
13 SUMSS J021036-405154 Rad 02 10 36.0 -40 51 55           ~ 1 1
14 PMN J0222-8024 rG 02 22 21.9889564092 -80 23 58.173053751           ~ 2 0
15 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
16 SUMSS J031201-523432 Rad 03 12 00.0 -52 34 32           ~ 1 1
17 SUMSS J032102-405735 Rad 03 21 02.0 -40 57 32           ~ 1 1
18 4FGL J0406.0-5407 BLL 04 06 08.66 -54 04 49.9           ~ 16 1
19 PMN J0436-5633 rG 04 36 24.28837 -56 33 30.7834           ~ 4 0
20 ATCA-ADFS J044508-541153 Rad 04 45 08.1769290168 -54 11 53.276796348           ~ 2 1
21 NVSS J044624-391544 Rad 04 46 24.60 -39 15 45.5           ~ 3 1
22 SUMSS J044829-401714 Rad 04 48 28.0 -40 17 12           ~ 1 1
23 SUMSS J045530-720441 Rad 04 55 30.5 -72 04 42           ~ 5 2
24 SUMSS J050230-651321 Rad 05 02 30.0 -65 13 22           ~ 1 1
25 GRB 940526B gB 05 21.6 -30 23           ~ 18 0
26 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
27 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0
28 SN 1987A SN* 05 35 27.98840 -69 16 11.1134           SNIIpec 5203 2
29 SUMSS J055712-381106 Rad 05 57 12.0 -38 11 05           ~ 1 0
30 SUMSS J060938-333508 Rad 06 09 38.0 -33 35 08           ~ 4 0
31 FRL 1138 G 06 09 38.7767314968 -33 35 15.776121084   14   14.78   ~ 19 0
32 [BMG2011] J061051-342404 Rad 06 10 50.0 -34 24 04           ~ 1 0
33 SUMSS J061952-643917 Rad 06 19 52.0 -64 39 17           ~ 1 1
34 SUMSS J062636-425807 Rad 06 26 36.0 -42 58 07           ~ 1 0
35 [BMG2011] J062716-371736 Rad 06 27 16.0 -37 17 36           ~ 1 0
36 SUMSS J062724-405328 Rad 06 27 24.0 -40 53 28           ~ 1 1
37 [BMG2011] J064149-371706 Rad 06 41 49.0 -37 17 06           ~ 2 0
38 SUMSS J064951-620221 Rad 06 49 51.0 -62 02 21           ~ 1 1
39 MGPS J082437-463505 Rad 08 24 38.0 -46 35 09           ~ 1 1
40 NAME Vel G Rad 08 33 22.31576 -44 41 38.7150           ~ 11 1
41 MGPS J083343-431958 Rad 08 33 43.0 -43 19 58           ~ 1 1
42 MGPS J083420-385401 Rad 08 34 20.0 -38 53 57           ~ 1 1
43 MGPS J083524-482342 Rad 08 35 24.0 -48 23 42           ~ 1 1
44 MGPS J083555-480638 Rad 08 35 54.0 -48 06 38           ~ 1 1
45 MGPS J090857-523612 Rad 09 08 57.0 -52 36 13           ~ 1 1
46 MGPS J091052-473743 Rad 09 10 52.0 -47 37 41           ~ 1 1
47 PSR J0941-39 Psr 09 42 -39.7           ~ 26 0
48 MGPS J095141-550630 Rad 09 51 41.0 -55 06 31           ~ 1 1
49 SUMSS J100222-423135 Rad 10 02 22.0 -42 31 33           ~ 1 1
50 SUMSS J101048-805633 Rad 10 10 47.0 -80 56 32           ~ 1 1
51 NVSS J102640-333626 Rad 10 26 40.8 -33 36 15           ~ 3 1
52 MGPS J104530-505429 Rad 10 45 30.0 -50 54 30           ~ 1 1
53 SUMSS J112610-330216 Rad 11 26 09.0 -33 02 13           ~ 1 0
54 V* GU Mus HXB 11 26 26.5961559600 -68 40 32.877752952           K3V-K7V 734 1
55 SUMSS J113907-462506 Rad 11 39 06.0 -46 25 06           ~ 1 1
56 SUMSS J120525-470714 Rad 12 05 26.0 -47 07 10           ~ 1 1
57 [BMG2011] J121032-381439 Rad 12 10 32.0 -38 14 39           ~ 1 0
58 SN 1979C SN* 12 22 58.58 +15 47 52.7   11.6       SNIIL 609 1
59 [BMG2011] J135304-363726 Rad 13 53 04.0 -36 37 26           ~ 1 0
60 [BMG2011] J153613-332915 Rad 15 36 13.0 -33 29 15           ~ 1 0
61 MGPS J161340-640022 Rad 16 13 40.0 -64 00 22           ~ 1 1
62 V* V1033 Sco HXB 16 54 00.1423963019 -39 50 44.761701340       16.14   F3-6IV 1980 0
63 V* V821 Ara LXB 17 02 49.3876391280 -48 47 23.087954544         15.322 ~ 2237 0
64 MGPS J170932-441750 Rad 17 09 32.0 -44 17 49           ~ 1 1
65 MGPS J171300-541538 Rad 17 13 00.0 -54 15 39           ~ 1 1
66 SUMSS J173100-533721 Rad 17 31 00.0 -53 37 21           ~ 1 1
67 SUMSS J175605-464450 Rad 17 56 06.0 -46 44 49           ~ 1 1
68 SUMSS J183056-464744 Rad 18 30 56.0 -46 47 43           ~ 1 1
69 PMN J1903-5050 rG 19 03 44.61657 -50 51 07.9978           ~ 5 2
70 PSR J1933+2421 Psr 19 33 37.83 +24 36 39.6           ~ 157 0
71 IC 4957 G 20 09 35.6821850647 -55 42 33.389065113   15.26   14.01   ~ 18 0
72 SUMSS J200936-554236 Rad 20 09 36.0 -55 42 36           ~ 2 1
73 MCG-07-41-016 Sy2 20 15 23.8474369656 -39 59 49.975572192   14.56   13.40   ~ 18 0
74 SUMSS J201524-395949 Rad 20 15 24.0 -39 59 49           ~ 3 1
75 PMN J2025-8139 Rad 20 25 36.0 -81 39 19           ~ 2 1
76 SUMSS J211009-772600 Rad 21 10 09.0 -77 25 58           ~ 1 1
77 SUMSS J214235-724745 Rad 21 42 35.0 -72 47 40           ~ 1 1
78 SUMSS J223017-614701 Rad 22 30 16.0 -61 47 03           ~ 1 1
79 PMN J2232-6153 Rad 22 32 19 -61 53.3           ~ 2 0
80 SUMSS J223225-615308 Rad 22 32 24.0 -61 53 13           ~ 1 1
81 NAME HDF-S reg 22 32 56 -60 33.0           ~ 580 0
82 2dFGRS TGS340Z050 rG 22 41 52.07 -30 08 28.5   18.839   17.976   ~ 3 0
83 SUMSS J225444-500528 Rad 22 54 44.0 -50 05 30           ~ 1 1

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