2018ApJ...866...76M

Query : 2018ApJ...866...76M

2018ApJ...866...76M - Astrophys. J., 866, 76-76 (2018/October-3)

A morphological study of the supernova remnant RX J0852.0-4622 (Vela Jr.).

MAXTED N.I., FILIPOVIC M.D., SANO H., ALLEN G.E., PANNUTI T.G., ROWELL G.P., GRECH A., ROPER Q., WONG G.F., GALVIN T.J., FUKUI Y., COLLIER J.D., CRAWFORD E.J., GRIEVE K., DE HORTA A., MANOJLOVIC P. and O'BRIEN A.

Abstract (from CDS):

We conduct a multiwavelength morphological study of the Galactic supernova remnant (SNR) RX J0852.0-4622 (also known as Vela Jr., Vela Z, and G266.2-1.2). RX J0852.0-4622 is coincident with the edge of the larger Vela SNR causing confusion in the attribution of some filamentary structures to either RX J0852.0-4622 or its larger sibling. We find that the RX J0852.0-4622 radio-continuum emission can be characterized by a two-dimensional shell with a radius of 0.°90 ± 0.°01 (or 11.8 ± 0.6 pc at an assumed distance of 750 pc) centered at (l, b) = (133.°08 ± 0.°01,-46.°34 ± 0.°01) (or R.A. = 8h52m19.s2, decl. = -46°20'24.''0, J2000), consistent with X-ray and gamma-ray emission. Although [O III] emission features are generally associated with the Vela SNR, one particular [O III] emission feature, which we denote as "the Vela Claw," morphologically matches a molecular clump that is thought to have been stripped by the stellar progenitor of the RX J0852.0-4622 SNR. We argue that the Vela Claw feature is possibly associated with RX J0852.0-4622. Toward the northwestern edge of RX J0852.0-4622 , we find a flattening of the radio spectral index toward another molecular clump also thought to be associated with RX J0852.0-4622 . It is currently unclear whether this feature and the Vela Claw result from interactions between the RX J0852.0-4622 shock and interstellar medium gas.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): acceleration of particles - gamma rays: ISM - ISM: supernova remnants - radio continuum: ISM

Nomenclature: Fig. 2: [MFS2018] Filament A (Nos A-D).

CDS comments: Vela Claw is not in SIMBAD.

Simbad objects: 19

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Number of rows : 19
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 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
2 * gam02 Vel WR* 08 09 31.95013 -47 20 11.7108 0.64 1.58 1.83 1.85 2.00 WC8+O7.5III-V 951 0
3 NAME Pup A SNR 08 24 07 -42 59.8           ~ 636 1
4 NAME Vela SNR 08 34.0 -45 50           ~ 1331 2
5 NAME Vela Pulsar Psr 08 35 20.65525 -45 10 35.1545     15.10     ~ 2446 1
6 [MFS2018] Filament C Rad 08 50 -46.0           ~ 1 0
7 NAME Vela Jr SN SNR 08 52.0 -46 20           ~ 507 2
8 2XMM J085201.4-461753 X 08 52 01.4 -46 17 53           ~ 52 1
9 NAME Vela Z Rad 08 53 30.0 -45 35 00           ~ 32 0
10 [MFS2018] Filament D Rad 08 53.8 -46 37           ~ 1 0
11 [MFS2018] Filament B Rad 08 54.9 -46 15           ~ 1 0
12 [CRB99] C Rad 08 55 -45.0           ~ 3 0
13 PSR J0855-4644 Psr 08 55 36.160 -46 44 13.46           ~ 62 1
14 RCW 38 SFR 08 59 05.50 -47 30 39.4           ~ 327 2
15 NGC 2736 HII 09 00.2 -45 57           ~ 19 0
16 SNR G292.0+01.8 SNR 11 24 59 -59 19.1           ~ 351 1
17 ESO 134-11 HII 14 40 29 -62 38.7           ~ 585 1
18 SNR G347.3-00.5 SNR 17 12 27 -39 41.2     12.27     ~ 761 1
19 NAME Cas A SNR 23 23 26.0 +58 48 41     14.30     ~ 3033 1

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