2019MNRAS.486.2507A

Query : 2019MNRAS.486.2507A

2019MNRAS.486.2507A - Mon. Not. R. Astron. Soc., 486, 2507-2524 (2019/June-3)

Discovery of a pulsar-powered bow shock nebula in the Small Magellanic Cloud supernova remnant DEM S5.

ALSABERI R.Z.E., MAITRA C., FILIPOVIC M.D., BOZZETTO L.M., HABERL F., MAGGI P., SASAKI M., MANJOLOVIC P., VELOVIC V., KAVANAGH P., MAXTED N.I., UROSEVIC D., ROWELL G.P., WONG G.F., FOR B.-Q., O'BRIEN A.N., GALVIN T.J., STAVELEY-SMITH L., NORRIS R.P., JARRETT T., KOTHES R., LUKEN K.J., HURLEY-WALKER N., SANO H., ONIC D., DAI S., PANNUTI T.G., TOTHILL N.F.H., CRAWFORD E.J., YEW M., BOJICIC I., DENES H., McCLURE-GRIFFITHS N., GUROVICH S. and FUKUI Y.

Abstract (from CDS):

We report the discovery of a new Small Magellanic Cloud pulsar wind nebula (PWN) at the edge of the supernova remnant (SNR) DEM S5. The pulsar powered object has a cometary morphology similar to the Galactic PWN analogues PSR B1951+32 and 'the mouse'. It is travelling supersonically through the interstellar medium. We estimate the pulsar kick velocity to be in the range of 700-2000 km s–1 for an age between 28 and 10 kyr. The radio spectral index for this SNR-PWN-pulsar system is flat (-0.29 ± 0.01) consistent with other similar objects. We infer that the putative pulsar has a radio spectral index of -1.8, which is typical for Galactic pulsars. We searched for dispersion measures up to 1000 cm–3 pc but found no convincing candidates with an S/N greater than 8. We produce a polarization map for this PWN at 5500 MHz and find a mean fractional polarization of P ∼ 23 per cent. The X-ray power-law spectrum (Γ ∼ 2) is indicative of non-thermal synchrotron emission as is expected from PWN-pulsar system. Finally, we detect DEM S5 in infrared (IR) bands. Our IR photometric measurements strongly indicate the presence of shocked gas that is expected for SNRs. However, it is unusual to detect such IR emission in an SNR with a supersonic bow shock PWN. We also find a low-velocity H I cloud of ∼107 km s–1 that is possibly interacting with DEM S5. SNR DEM S5 is the first confirmed detection of a pulsar-powered bow shock nebula found outside the Galaxy.

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

Journal keyword(s): radiation mechanisms: general - ISM: individual objects: DEM S5 - ISM: supernova remnants - Magellanic Clouds - radio continuum: ISM

Simbad objects: 37

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Number of rows : 37
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 MCSNR J0041-7336 SNR 00 40 55 -73 36.9           ~ 36 0
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
3 SNR B0056-72.5 SNR 00 58 18.40 -72 17 22.7   20.58 20.70     ~ 59 1
4 PSR J0100-7211 Psr 01 00 42.86 -72 11 33.3   17.69 17.82     B3V 101 0
5 2E 273 XB* 01 06 19.49 -72 05 27.8     16.70     ~ 61 0
6 SXP 1062 HXB 01 27 45.9424650912 -73 32 56.376382920   14.32 14.36     B0.5(III)e 95 1
7 QSO B0230-790 Bla 02 29 34.94659694 -78 47 45.6017623   19.25 18.9 19.09   ~ 67 1
8 PKS 0252-712 rG 02 52 46.15578 -71 04 35.2742   19.0 19.0     ~ 104 1
9 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
10 PSR J0357+32 Psr 03 57 52.161 +32 05 23.63           ~ 104 0
11 SNR B0453-68.5 SNR 04 53 36.00 -68 29 30.0           ~ 90 1
12 MCSNR J0508-6902 SNR 05 08 36.7 -69 02 54           ~ 16 0
13 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
14 MCSNR J0527-7104 SNR 05 28 01.2 -71 04 23           ~ 11 0
15 PSR B0529-66.9 Psr 05 29 50.90000 -66 52 39.9000           ~ 42 0
16 NAME SNR J0529-6654 SNR 05 29 51.00 -66 53 27.1           ~ 8 0
17 LHA 120-N 206A HII 05 31 56.0 -71 00 19           ~ 123 2
18 PSR J0537-6910 Psr 05 37 46.66 -69 10 17.1           ~ 309 1
19 NGC 2060 SNR 05 37 51.4466169456 -69 10 23.947092084   9.69 9.59     ~ 380 2
20 PSR B0540-69 Psr 05 40 11.2000490438 -69 19 54.198559829           ~ 976 3
21 IC 443 SNR 06 17 00.0000000 +22 34 11.998901           ~ 1314 1
22 NAME MSH 11-61A SNR 10 59 25.36 -61 18 42.6           ~ 187 0
23 SNR G292.0+01.8 SNR 11 24 59 -59 19.1           ~ 351 1
24 SNR G311.5-00.3 SNR 14 05.6 -61 58           ~ 60 1
25 AJG 44 Psr 16 17 33.000 -51 02 00.00           ~ 552 3
26 SNR G332.5-05.6 SNR 16 43.3 -54 30           ~ 32 0
27 SNR G346.6-00.2 SNR 17 10.3 -40 11           ~ 99 0
28 NAME Mouse Rad 17 47 15.78 -29 58 01.0           ~ 120 1
29 NAME Milne 56 SNR 18 02 10.000 -24 54 00.00           ~ 182 3
30 SNR G031.9+00.0 SNR 18 49 16.3 -00 55 01           ~ 368 2
31 SNR G034.6-00.5 SNR 18 56 10.650 +01 13 21.30           ~ 1034 2
32 SNR G054.1+00.3 SNR 19 30 10.6 +18 50 22           ~ 271 1
33 ICRF J193925.0-634245 Sy2 19 39 25.0245304992 -63 42 45.640373400   18.87 18.37 17.64   ~ 1332 2
34 SNR G068.8+02.6 SNR 19 52 55 +32 54.2           ~ 361 1
35 PSR B1951+32 Psr 19 52 58.181 +32 52 40.98           ~ 615 2
36 NGC 7023 OpC 21 01 36.9 +68 09 48           ~ 739 0
37 NAME Cas A SNR 23 23 26.0 +58 48 41     14.30     ~ 3033 1

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