2005A&A...436..427K


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.12CEST12:39:09

2005A&A...436..427K - Astronomy and Astrophysics, volume 436, 427-436 (2005/6-3)

A radio monitoring survey of ultra-luminous X-ray sources.

KOERDING E., COLBERT E. and FALCKE H.

Abstract (from CDS):

We present the results of a radio monitoring campaign to search for radio emission from nearby ultra-luminous X-ray sources (ULXs). These sources are bright off-nuclear X-ray point sources with luminosities exceeding LX>1039erg/s. A well-defined sample of the 9 nearest ULXs has been monitored eight times over 5 months with the Very Large Array in A and B configuration. Our limiting sensitivity is ≃0.15mJy (4σ) for radio flares and ≃60µJy for continuous emission. In M82 two ULXs seem to have coincident compact radio sources, which are probably supernova remnants. No continuous or flaring radio emission has been detected from any other ULX. Thus, ULXs do not generally emit steady-state radio emission above radio powers of 1.5x1017W/Hz. The non-detections of the continuous emission are consistent with beamed or unbeamed radio emission from accreting black holes of ≤103M based on the radio/X-ray correlation. Other published radio detections (M82, NGC 5408) are also discussed in this context. Both detections are significantly above our detection limit. If ULXs have flaring radio emission above 4x1017W/Hz we can give an upper limit on the duty cycle of the flares of 6%. This upper limit is in agreement with the observed number of flares in Galactic radio transients. Additionally we present a yet unreported radio double structure in the nearby low-luminosity AGN NGC 4736.

Abstract Copyright:

Journal keyword(s): black hole physics - X-rays: binaries - galaxies: active

Nomenclature: Table 4: [KCF2005] M82 A (Nos A-I), [KCF2005] M82 aN (Nos d1, e1-e3, f1, g1-g3). Table 5: [KCF2005] N4736 a (Nos a-b), [KCF2005] M101 a (Nos a-c), [KCF2005] M101 alf N=1, [KCF2005] N2403 alf N=1.

Simbad objects: 49

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Number of rows : 49

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NGC 520 IG 01 24 35.071 +03 47 32.68 12.41 12.24 11.42     ~ 490 3
2 ChASeM33 J013350.89+303936.6 SNR 01 33 50.90 +30 39 36.6           ~ 86 1
3 M 33 GiG 01 33 50.904 +30 39 35.79 6.17 6.27 5.72     ~ 5135 1
4 3C 48 QSO 01 37 41.2995845985 +33 09 35.079126038   16.62 16.20     ~ 2497 2
5 [KCF2005] N2403 alf Rad 07 36 25.49 +65 35 39.8           ~ 1 0
6 [FK2005] 6 ULX 07 36 25.55 +65 35 40.0           ~ 37 0
7 NGC 2403 AGN 07 36 51.396 +65 36 09.17 9.31 8.84 8.38 8.19   ~ 1608 1
8 CXOU J095546.5+694040 HXB 09 55 46.45 +69 40 40.3           ~ 17 1
9 [CHP2004] J095546.6+694037 X 09 55 46.9 +69 40 38           ~ 3 0
10 CXOU J095547.4+694059 HXB 09 55 47.7 +69 41 00           ~ 4 0
11 NAME M82 ULX-1 UX? 09 55 50.01 +69 40 46.0           ~ 241 1
12 [FMB2008] 41.30+59.6 SNR 09 55 50.04 +69 40 45.9           ~ 22 0
13 [KCF2005] M82 e1 ? 09 55 50.39 +69 40 44.3           ~ 1 0
14 CXOU J095550.6+694043 HXB 09 55 50.68 +69 40 43.8           ~ 92 0
15 [FMB2008] 42.20+59.1 HII 09 55 50.94 +69 40 45.3           ~ 28 1
16 [KCF2005] M82 f1 ? 09 55 50.95 +69 40 45.3           ~ 1 0
17 [KCF2005] M82 G ULX 09 55 51.040 +69 40 45.49           ~ 161 1
18 [KCF2005] M82 g1 ? 09 55 51.22 +69 40 44.5           ~ 1 0
19 [KCF2005] M82 g2 ? 09 55 51.29 +69 40 44.3           ~ 1 0
20 [KCF2005] M82 g3 ? 09 55 51.41 +69 40 44.5           ~ 1 0
21 CXOU J095551.4+694035 HXB 09 55 51.7 +69 40 36           ~ 9 0
22 M 82 IG 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5336 6
23 CXOU J095553.3+694101 HXB 09 55 53.6 +69 41 02           ~ 4 0
24 V* KV UMa HXB 11 18 10.7922353051 +48 02 12.319175505     12.25     K5V-M1V 721 0
25 [KCF2005] N4736 a Rad 12 50 53.03 +41 07 13.6           ~ 1 0
26 [KCF2005] N4736 b Rad 12 50 53.08 +41 07 13.0           ~ 1 0
27 [BWC2008] C14 X 12 50 53.1 +41 07 13           ~ 8 0
28 M 94 SyG 12 50 53.148 +41 07 12.55 9.15 8.96 8.24 7.78   ~ 1217 3
29 [ESC2002] NGC 4736 X-1 ULX 12 50 53.3 +41 07 14           ~ 9 0
30 NGC 5204 LSB 13 29 36.508 +58 25 07.43   11.84   11.37   ~ 421 0
31 [FK2005] 23 ULX 13 29 38.62 +58 25 05.6           ~ 109 2
32 3C 286 Sy1 13 31 08.2885060664 +30 30 32.960825108   17.51 17.25     ~ 3716 1
33 SN 1983N SN* 13 36 51.23 -29 54 01.7   11.7       SNIb 265 1
34 V* BW Cir HXB 13 58 09.700 -64 44 05.80 17.90 18.00 16.9     ~ 192 1
35 [LB2005] NGC 5457 X12 UX? 14 02 29.67 +54 21 18.1           ~ 2 0
36 2E 3170 XB* 14 03 03.6 +54 27 29           ~ 14 0
37 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 2546 2
38 NGC 5408 EmG 14 03 20.907 -41 22 39.75   12.59   11.96 12.2 ~ 316 3
39 [KCF2005] M101 a Rad 14 03 31.31 +54 21 14.9           ~ 1 0
40 [KCF2005] M101 alf Rad 14 04 14.21 +54 26 02.6           ~ 1 0
41 [KCF2005] M101 c Rad 14 04 14.25 +54 26 09.4           ~ 1 0
42 [KCF2005] M101 b Rad 14 04 14.32 +54 26 09.4           ~ 1 0
43 V* IL Lup HXB 15 47 08.2766679321 -47 40 10.284971214           ~ 412 1
44 V* V821 Ara HXB 17 02 49.3810714542 -48 47 23.163091737 16.20 16.30 15.5     ~ 1764 0
45 NAME Sgr A Region reg 17 45 12 -28 48.3           ~ 916 0
46 Granat 1915+105 LXB 19 15 11.54938 +10 56 44.7585           ~ 2285 0
47 HD 226868 HXB 19 58 21.6758193269 +35 12 05.782512305 9.38 9.72 8.91 8.42   O9.7Iabpvar 3925 0
48 V* V404 Cyg HXB 20 24 03.820 +33 52 01.90 14.50 14.20 12.7     K0IV 1090 0
49 V* V1521 Cyg HXB 20 32 25.78 +40 57 27.9           WN4/5-6/7 1765 2

    Equat.    Gal    SGal    Ecl

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2020.07.12-12:39:09

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