# 2006A&A...449..243R

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 Query : 2006A&A...449..243R

2006A&A...449..243R - Astronomy and Astrophysics, volume 449, 243-250 (2006/4-1)

The interior of the SNR RX J0852.0-4622 (Vela Jr) at radio wavelengths.

REYNOSO E.M., DUBNER G., GIACANI E., JOHNSTON S. and GREEN A.J.

Abstract (from CDS):

We observed the center of the supernova remnant Vela Jr in radio continuum in order to search for a counterpart to the compact central X-ray source CXOU J085201.4-461753, possibly a neutron star candidate which could be the remnant of the supernova explosion. Observations were made with the Australia Telescope Compact Array at 13 and 20cm. Spectral indices were obtained using flux density correlations of the data which were spatially filtered to have the same u-v coverage. A multiwavelength search for counterparts to the compact central X-ray source was made. We compiled a new catalogue of 31 small diameter radio sources, including the previously known source PMN J0853-4620, listing the integrated flux densities at 20cm and, for half of the sources, the flux densities at 13 cm with the corresponding spectral indices. All sources are unresolved at the present angular resolution except for Source 18, which is clearly elongated and lies strikingly close to CXOU J085201.4-461753. Our observations show no evidence for the existence of a pulsar wind driven nebula associated with the point X-ray source. Furthermore, Source 18 has a thermal spectrum with index α=+0.8±0.4 (S∝να), and appears to be the counterpart of the optical source Wray 16-30. In spite of the absence of [OIII] emission lines as reported in the literature, we find that this object could be explained as a low emission planetary nebula belonging to the butterfly'' morphological class. We conclude that if the radio source 18 is actually a planetary nebula, then CXOU J085201.4-461753 is more likely to be related to it rather than to Vela Jr.

Journal keyword(s): ISM: supernova remnants - ISM: individual objects: Vela Jr - ISM: planetary nebulae: individual: Ve 2-27 - stars: individual: Wray 16-30 - X-rays: individual: CXOU J085201.4-461753 - catalogs

Nomenclature: Table 1, Fig.1: [RDG2006] NN (Nos 1-31).

CDS comments: Fig.2 IRAS 0852-4606 is a probable misprint for IRAS 08502-4606.

Full paper

 Number of rows : 45
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 ICRF J082526.8-501038 QSO 08 25 26.8673494560 -50 10 38.484054768   20.94       ~ 125 1
2 [RDG2006] 1 Rad 08 48 16.2 -46 14 11           ~ 1 0
3 [RDG2006] 2 Rad 08 48 20.9 -46 36 57           ~ 1 0
4 [RDG2006] 3 Rad 08 48 26.5 -46 31 35           ~ 1 0
5 [RDG2006] 4 Rad 08 48 36.0 -46 21 22           ~ 1 0
6 [RDG2006] 5 Rad 08 48 40.4 -46 04 58           ~ 1 0
7 [RDG2006] 6 Rad 08 49 42.7 -46 48 36           ~ 1 0
8 [RDG2006] 7 Rad 08 49 42.8 -46 27 19           ~ 1 0
9 [RDG2006] 8 Rad 08 50 16.8 -46 19 22           ~ 1 0
10 [RDG2006] 9 Rad 08 50 29.9 -46 28 17           ~ 1 0
11 [RDG2006] 10 Rad 08 50 48.2 -46 18 54           ~ 1 0
12 [RDG2006] 11 Rad 08 51 01.4 -46 16 43           ~ 1 0
13 [RDG2006] 12 Rad 08 51 07.1 -46 26 30           ~ 1 0
14 [RDG2006] 13 Rad 08 51 10.4 -46 16 17           ~ 1 0
15 [RDG2006] 14 Rad 08 51 23.6 -46 43 43           ~ 1 0
16 [RDG2006] 15 Rad 08 51 41.0 -46 36 51           ~ 1 0
17 [RDG2006] 16 Rad 08 51 56.8 -45 49 37           ~ 1 0
18 2MASX J08515810-4625361 IR 08 51 58.1612090184 -46 25 36.347509380           ~ 1 0
19 [RDG2006] 18 Rad 08 51 58.9 -46 17 52           ~ 1 0
20 Ve 7-27 Em* 08 51 59.6873334432 -46 18 07.278013188   14.87 13.88 14.59 12.96 ~ 46 1
21 NAME Vela Jr SN SNR 08 52.0 -46 20           ~ 455 2
22 [CRB99] A Rad 08 52 -46.3           ~ 3 0
23 [M2001b] J085201-461814 X 08 52 01 -46 18.2           ~ 2 0
24 SAX J0852.0-4615 X 08 52 01 -46 15.0           ~ 6 1
25 EQ J0852-4617 * 08 52 01.17 -46 17 52.3   18.8       ~ 3 0
26 2XMM J085201.4-461753 X 08 52 01.4 -46 17 53           ~ 44 1
27 HD 76060 * 08 52 02.4492347352 -46 17 19.845385800   7.79 7.88     B8IV/V 26 0
28 [AIS99] J085203-461836 X 08 52 03 -46 18.6           ~ 3 0
29 [RDG2006] 19 Rad 08 52 07.3 -46 01 16           ~ 1 0
30 [RDG2006] 20 Rad 08 52 15.1 -46 08 48           ~ 1 0
31 [RDG2006] 21 Rad 08 52 39.5 -46 30 30           ~ 1 0
32 [RDG2006] 22 Rad 08 52 40.1 -46 25 07           ~ 1 0
33 [RDG2006] 23 Rad 08 52 54.1 -46 21 42           ~ 1 0
34 [RDG2006] 24 Rad 08 53 14.6 -46 29 36           ~ 1 0
35 [RDG2006] 25 Rad 08 53 17.1 -46 06 59           ~ 1 0
36 PMN J0853-4620 Rad 08 53 31 -46 20.2           ~ 3 0
37 [RDG2006] 26 Rad 08 53 31.9 -46 19 59           ~ 1 0
38 [RDG2006] 27 Rad 08 53 54.7 -46 06 21           ~ 1 0
39 [RDG2006] 28 Rad 08 53 55.6 -46 02 15           ~ 1 0
40 [RDG2006] 29 Rad 08 54 12.6 -46 38 45           ~ 1 0
41 [RDG2006] 30 Rad 08 54 36.9 -46 04 38           ~ 1 0
42 [RDG2006] 31 Rad 08 54 54.6 -46 13 38           ~ 1 0
43 * eta Car Em* 10 45 03.5377808928 -59 41 04.051599720 6.37 7.03 6.48 4.90 4.41 OBepec 2375 0
44 ICRF J193925.0-634245 Sy2 19 39 25.0245304992 -63 42 45.640373400   18.87 18.37 17.64   ~ 1150 1
45 * P Cyg s*b 20 17 47.2020844 +38 01 58.552724 4.66 5.24 4.82 4.28 4.02 B1-2Ia-0ep 1166 1

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2023.03.21-14:23:33