2009ApJ...704..652N

Query : 2009ApJ...704..652N

2009ApJ...704..652N - Astrophys. J., 704, 652-660 (2009/October-2)

Discovery of two radio transients at a high galactic latitude in a 1.4 GHz drift-scan survey.

NIINUMA K., DAISHIDO T., MATSUMURA N., TAKEFUJI K., KUNIYOSHI M., ASUMA K., KIDA S., TANAKA T., AOKI T., ISHIKAWA S., HIRANO K., UEHARA H. and NAKAGAWA S.

Abstract (from CDS):

We report two new radio transients at high Galactic latitude, WJN J0951+3300 (α = 09h51m22s±10s, δ = 33°00'±0°.4, b = 50°54'.2) and WJN J1039+3300 (α = 10h39m26s±10s, δ = 33°00' ± 0°.4, b = 60°58'.5), which were detected by interferometric drift-scan observations at 1.4 GHz at the Waseda Nasu Pulsar Observatory. WJN J0951+3300 was detected at 16:49:32 UT on 2006 January 12 with the flux density of approximately 1760.5±265.9 mJy, and WJN J1039+3300 was detected at 17:13:32 UT on 2006 January 18 with the flux density of approximately 2242.5±228.7 mJy. Both of them lasted for a short duration (≤2 days). The possibility that the distribution of the WJN radio transients is isotropic was suggested in a previous study. Having re-evaluated the log N-log S relation with the addition of the two new objects reported in this paper, we find that the slope is consistent with a slope of -1.5 and the previous result. Additionally, although there are several counterparts to WJN radio transients, we found that one of the quasar counterparts within the positional error of WJN J0951+3300 could be a radio-loud quasar. We have discussed whether or not WJN J0951+3300 could be of this quasar origin.

Abstract Copyright: ∼

Journal keyword(s): radio continuum: general - stars: variables: other - techniques: interferometric

VizieR on-line data: <Available at CDS (J/ApJ/704/652): table3.dat>

Simbad objects: 78

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Number of rows : 78
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 3C 48 QSO 01 37 41.2996631208 +33 09 35.080388820   16.62 16.20     ~ 2924 2
2 2MASX J04443621+4147447 G 04 44 36.2358912168 +41 47 44.704540680           ~ 1 0
3 WJN J0445+4130 Rad 04 45 17 +41 30.0           ~ 3 0
4 2MASX J04455783+4128326 G 04 45 57.8404690080 +41 28 32.686682628           ~ 1 0
5 2MASX J04460588+4150347 G 04 46 05.887 +41 50 34.74           ~ 4 0
6 LEDA 168768 G 04 46 12.7 +41 07 16           ~ 4 0
7 4C 32.18 Rad 05 26 43.436 +32 50 09.34           ~ 58 1
8 WJN J0645+3200 Rad 06 45 15 +30 00.0           ~ 3 0
9 2MASX J06451866+3212121 G 06 45 18.6855331080 +32 12 11.897529732           ~ 1 0
10 2MASX J06452354+3212311 G 06 45 23.5336667592 +32 12 31.214822004           ~ 2 0
11 NVSS J095114+324929 rG 09 51 14.6930634504 +32 49 28.675858872           ~ 5 1
12 2MASX J09511489+3243447 G 09 51 14.9093302872 +32 43 45.197524704           ~ 1 0
13 SDSS J095115.45+323919.7 G 09 51 15.4509389784 +32 39 19.832092272           ~ 3 0
14 2MASX J09511599+3318257 G 09 51 16.0271960448 +33 18 25.177421160           ~ 1 0
15 WJN J0951+3300 Rad 09 51 22 +33 00.0           ~ 2 0
16 SDSS J095124.78+323710.8 QSO 09 51 24.7841918424 +32 37 10.803974592           ~ 7 0
17 SDSS J095126.56+324601.4 QSO 09 51 26.5634322840 +32 46 01.403645484   19.13 18.94     ~ 20 0
18 Z 182-26 EmG 09 51 28.122 +32 56 37.17   14.7       ~ 40 0
19 SDSS J095130.01+332158.8 QSO 09 51 30.0151047216 +33 21 58.874562432   19.18 18.85     ~ 18 0
20 2MASX J10392139+3243294 G 10 39 21.3674397264 +32 43 29.071915716           ~ 1 0
21 2MASX J10392180+3241074 G 10 39 21.8167160328 +32 41 07.954805184           ~ 2 0
22 NVSS J103922+324219 rG 10 39 22.7675607960 +32 42 23.070924576           ~ 2 0
23 SDSS J103923.81+325246.2 G 10 39 23.799 +32 52 46.12           ~ 3 0
24 WJN J1039+3300 Rad 10 39 26 +33 00.0           ~ 2 0
25 LEDA 2012180 G 10 39 30.09723 +32 46 56.0035           ~ 4 0
26 SDSS J103932.31+323731.6 QSO 10 39 32.3088557112 +32 37 31.719335160   20.52 20.14     ~ 16 0
27 SDSS J103932.43+325810.9 G 10 39 32.424 +32 58 10.85           ~ 1 0
28 SDSS J103933.42+314907.6 G 10 39 33.420 +31 49 07.61           ~ 1 0
29 2MASX J10393391+3206465 G 10 39 33.907 +32 06 46.85           ~ 4 0
30 MAPS-NGP O-264-502254 G 10 39 34.6 +32 15 05           ~ 1 0
31 SDSS J103934.66+331545.4 G 10 39 34.6755908352 +33 15 45.338856444           ~ 1 0
32 2MASX J10393518+3243225 LIN 10 39 35.2177963056 +32 43 23.005734600           ~ 3 0
33 SDSS J103936.14+314239.3 G 10 39 36.1502759880 +31 42 39.313594260           ~ 2 0
34 2MASX J10393680+3222065 G 10 39 36.7917151896 +32 22 06.459294252           ~ 1 0
35 SDSS J103941.05+321316.7 Sy1 10 39 41.0505313368 +32 13 16.738582332   20.90 20.67     ~ 15 0
36 2MASX J10394264+3214305 G 10 39 42.7062830688 +32 14 30.195670452           ~ 2 0
37 WJN J1039+3200 Rad 10 39 43 +32 00.0           ~ 3 0
38 LEDA 1984992 G 10 39 45.61295 +32 11 35.0561           ~ 8 0
39 SDSS J103946.32+321445.8 G 10 39 46.31938 +32 14 45.8201           ~ 4 0
40 SDSS J103946.43+313533.6 QSO 10 39 46.4279896152 +31 35 33.581973444   20.23 20.12     ~ 16 0
41 [VV98] J103949.7+321703 QSO 10 39 49.5915001776 +32 16 43.200125004   18.24 17.70     ~ 26 0
42 MAPS-NGP O-317-7620 G 10 39 50.7 +32 15 46           ~ 1 0
43 LEDA 2180806 G 10 42 15.8682281280 +41 25 05.102369292           ~ 3 0
44 MAPS-NGP O-214-867364 G 10 42 16.6 +41 18 55           ~ 1 0
45 MAPS-NGP O-214-811516 G 10 42 20.4 +41 33 54           ~ 1 0
46 FIRST J104221.8+413650 rG 10 42 21.9313256330 +41 36 50.403208701           ~ 2 0
47 LEDA 2185197 G 10 42 25.1877644712 +41 41 22.548533172           ~ 4 0
48 LEDA 3538413 G 10 42 27.0871275288 +41 10 58.633533300           ~ 3 0
49 SDSS J104228.96+411225.8 G 10 42 28.95548 +41 12 25.7584           ~ 3 0
50 LEDA 2188424 G 10 42 33.1351555152 +41 52 42.729610008           ~ 3 0
51 LEDA 2181483 G 10 43 04.497 +41 27 49.41           ~ 4 0
52 SDSS J104304.91+411133.6 G 10 43 04.9082241840 +41 11 33.640113048           ~ 1 0
53 FIRST J104305.7+413346 rG 10 43 05.7077689632 +41 33 45.394001172           ~ 8 0
54 WJN J1043+4130 Rad 10 43 06 +41 00.0           ~ 4 0
55 LEDA 2178223 G 10 43 08.7409480200 +41 15 38.411494560           ~ 5 0
56 SDSS J104310.46+415253.6 G 10 43 10.4645581944 +41 52 53.581329480           ~ 2 0
57 MAPS-NGP O-214-868834 G 10 43 11.5 +41 23 11           ~ 1 0
58 LEDA 2181064 G 10 43 45.6425976072 +41 26 10.456822464           ~ 5 0
59 2MASX J10435391+4119535 G 10 43 53.9157469992 +41 19 53.418128772           ~ 5 0
60 2MASX J10440089+4148285 G 10 44 00.8652689304 +41 48 28.584635616           ~ 1 0
61 2MASX J10440446+4148244 G 10 44 04.468 +41 48 24.50           ~ 2 0
62 MAPS-NGP O-272-969619 G 14 43 18.1 +35 00 00           ~ 1 0
63 SDSS J144318.13+345920.2 G 14 43 18.1217765208 +34 59 20.247891180           ~ 2 0
64 SDSS J144320.94+344939.9 QSO 14 43 20.9363228016 +34 49 40.008249912   19.19 19.02     ~ 20 0
65 WJN J1443+3439 Rad 14 43 22.0 +34 39 00           ~ 6 0
66 MAPS-NGP O-272-1113945 G 14 43 25.0 +34 28 40           ~ 1 0
67 SDSS J144326.02+341833.2 G 14 43 26.0234824512 +34 18 33.250664844           ~ 1 0
68 LEDA 2049869 G 14 43 28.4335152792 +34 28 48.969227316           ~ 10 0
69 LEDA 2053650 AG? 14 43 30.143 +34 43 47.46           ~ 14 0
70 SDSS J144330.44+342104.6 G 14 43 30.4294992744 +34 21 04.567895388           ~ 1 0
71 LEDA 2121706 G 17 36 53.005 +38 14 33.69           ~ 3 0
72 LEDA 2109254 G 17 36 54.0026371368 +37 46 37.259282388           ~ 3 0
73 2MASX J17365488+3743566 G 17 36 54.8868451296 +37 43 56.760236616           ~ 2 0
74 LEDA 2110534 G 17 37 04.0331491896 +37 49 36.751412820           ~ 4 0
75 WJN J1737+3808 Rad 17 37 17 +38 08.0           ~ 4 0
76 PSR J1745-3009 Rad 17 45 05 -30 09.9           ~ 63 0
77 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
78 NAME GCT Rad 17 45 41.282 -29 00 59.17           ~ 25 0

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