2019MNRAS.489.1181A


Query : 2019MNRAS.489.1181A

2019MNRAS.489.1181A - Mon. Not. R. Astron. Soc., 489, 1181-1196 (2019/October-2)

Discovery of a radio transient in M81.

ANDERSON G.E., MILLER-JONES J.C.A., MIDDLETON M.J., SORIA R., SWARTZ D.A., URQUHART R., HURLEY-WALKER N., HANCOCK P.J., FENDER R.P., GANDHI P., MARKOFF S. and ROBERTS T.P.

Abstract (from CDS):

We report the discovery of a radio transient in the spiral galaxy M81. The transient was detected in early 2015 as part of a two-year survey of M81 made up of 12 epochs using the Karl G. Jansky Very Large Array. While undetected on 2014 September 12, the source was first detected on 2015 January 2, from which point it remained visible at an approximately constant luminosity of L_R, ν_ = 1.5 ± 0.1 x 1024 erg s–1 Hz–1 at the observing frequency of 6 GHz for at least 2 months. Assuming this is a synchrotron event with a rise-time between 2.6 and 112 d, the peak luminosity (at equipartition) corresponds to a minimum energy of 1044 <= Emin <= 1046 erg and jet power of Pmin ∼ 1039 erg s–1, which are higher than most known X-ray binaries. Given its longevity, lack of short-term radio variability, and the absence of any multiwavelength counterpart (X-ray luminosity Lx <= 1036 erg s–1), it does not behave like known Galactic or extragalactic X-ray binaries. The M81 transient radio properties more closely resemble the unidentified radio transient 43.78+59.3 discovered in M82, which has been suggested to be a radio nebula associated with an accreting source similar to SS 433. One possibility is that both the new M81 transient and the M82 transient may be the birth of a short-lived radio bubble associated with a discrete accretion event similar to those observed from the ULX Holmberg II X-1. However, it is not possible to rule out other identifications including long-term supernova shockwave interactions with the surrounding medium from a faint supernova or a background active galaxy.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: black holes - supernovae: general - galaxies: individual: M81 - radio continuum: general - radio continuum: transients - X-rays: binaries

CDS comments: V6461 Sgr is a misprint for V4641 Sgr.

Simbad objects: 43

goto Full paper

goto View the references in ADS

Number of rows : 43
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 [HPH2013] 149 XB? 00 42 43.68 +41 25 18.6           ~ 27 0
2 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11380 1
3 DDB NGC 300 2 SNR 00 54 40.92 -37 40 40.1           ~ 15 0
4 [FWB2009] HLX-1 ULX 01 10 28.30 -46 04 22.3     24.5 23.80   ~ 163 1
5 NGC 1313 G 03 18 16.046 -66 29 53.74   10.06 10.0 9.40 10.4 ~ 623 2
6 NAME Chandra Deep Field-South reg 03 32 28.0 -27 48 30           ~ 1890 1
7 [SST2011] J034555.61+680455.3 ULX 03 45 55.612 +68 04 55.29           ~ 148 1
8 SN 1987A SN* 05 35 28.020 -69 16 11.07           SNIIpec 4600 2
9 [SST2011] J081929.00+704219.3 ULX 08 19 28.99 +70 42 19.4           ~ 161 2
10 VTC J095517+690813 Rad 09 55 17.460 +69 08 13.02           ~ 3 0
11 SSTU J095517.60+690812.8 MIR 09 55 17.60 +69 08 12.8           ~ 1 0
12 EQ J095517.6+690814.2 SFR 09 55 17.640 +69 08 14.28           ~ 1 0
13 M 81 Sy2 09 55 33.17306143 +69 03 55.0609270   7.89 6.94     ~ 4070 5
14 M 82 IG 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5470 6
15 EQ J095552.5+694045.4 Rad 09 55 52.5083 +69 40 45.420           ~ 12 1
16 SN 1988Z SN* 10 51 50.10 +16 00 00.5   16.8       SNIIn 349 1
17 NGC 4216 GiP 12 15 54.444 +13 08 57.84 11.51 10.99 10.01     ~ 381 1
18 SN 1979C SN* 12 22 58.58 +15 47 52.7   11.6       SNIIL 556 1
19 GrW 170817 GWE 13 09 48.0850 -23 22 53.343           ~ 1120 0
20 [KLK2016] X107 SFR 13 29 39.98 +47 12 36.9           ~ 12 0
21 M 51 GiP 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 3947 4
22 SN 1994I SN* 13 29 54.072 +47 11 30.50     12.9     SNIc 584 1
23 CXOU J133701.1-295151 SR? 13 37 01.11 -29 51 52.1           ~ 16 0
24 [FK2005] 25 ULX 14 03 19.63 -41 22 58.7           ~ 203 0
25 FIRST J141918.9+394036 Rad 14 19 18.9 +39 40 36           ~ 11 0
26 V* V1033 Sco HXB 16 54 00.137 -39 50 44.90   15.20 14.2 16.14   F5IV 1759 1
27 NAME Galactic Center gam 17 45 39.60213 -29 00 22.0000           ~ 12317 0
28 NAME XTE J17464-3213 LXB 17 46 15.59637 -32 14 00.8600           ~ 640 0
29 AX J1748.0-2829 LXB 17 48 05.060 -28 28 25.80     13.60     ~ 175 0
30 PSR J1808-2024 Psr 18 08 39.32 -20 24 40.1           ~ 1141 2
31 V* V4641 Sgr HXB 18 19 21.6342721789 -25 24 25.849323550     13.654   13.092 B9III 411 1
32 GBS 1900+14 gB 19 07 13 +09 19.6           ~ 803 0
33 SS 433 HXB 19 11 49.5645897700 +04 58 57.824087535   16.3 13.0     A7Ib: 1979 4
34 Granat 1915+105 HXB 19 15 11.55576 +10 56 44.9052           ~ 2388 0
35 NAME Cyg A Sy2 19 59 28.35645829 +40 44 02.0966496   16.22 15.10     ~ 2177 2
36 V* V404 Cyg HXB 20 24 03.820 +33 52 01.90 14.50 14.20 12.7     K0IV 1136 0
37 V* V1521 Cyg HXB 20 32 25.78 +40 57 27.9           WN4/5-6/7 1821 2
38 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2319 2
39 [FT87] NGC 6946 1 SNR 20 35 00.74 +60 11 30.6           ~ 93 0
40 SN 2014C SN* 22 37 05.60 +34 24 31.9           SNIb 73 1
41 SN 2001ig SN* 22 57 30.69 -41 02 25.9     14.5     SNIIb 150 1
42 [BL97] N7793-S26 SNR 23 58 00.27 -32 33 22.1           ~ 49 0
43 NAME Local Group GrG ~ ~           ~ 7319 0

To bookmark this query, right click on this link: simbad:objects in 2019MNRAS.489.1181A and select 'bookmark this link' or equivalent in the popup menu


2021.08.03-12:23:34

© Université de Strasbourg/CNRS

    • Contact