2024AJ....168...42L

Query : 2024AJ....168...42L

2024AJ....168...42L - Astron. J., 168, 42 (2024/July-0)

Investigation of Galactic Supernova Remnants and their Environment in 26.°6 < l < 30.°6, ∣b∣ ≤ 1.°25 Using Radio Surveys.

LUO T.-X., ZHOU P. and HE H.-N.

Abstract (from CDS):

The problem of missing Galactic supernova remnants (SNRs) refers to the issue that the currently known Galactic SNRs are significantly incomplete compared to the theoretical prediction. To expand the sample of Galactic SNRs, we use GLEAM and THOR+VGPS data across four wave bands ranging from 118 to 1420 MHz to drive a spectral index map covering the region within 26.°6 < l < 30.°6, ∣b∣ ≤ 1.°25, where numerous SNR candidates were recently found. By using the spectral index map of the sky region and detailed analysis of the spectral indices of individual sources, we confirmed four SNR candidates, namely G26.75+0.73, G27.06+0.04, G28.36+0.21, and G28.78-0.44, as SNRs. Additionally, we discovered an expanding molecular superbubble located in this region, discussed pulsars associated with SNR candidates, and discovered a long Hα filament that spatially overlaps with the candidate G29.38+0.10. We suggest that the problem of missing Galactic SNRs not only arises from observation limitations, but also could be due to the low-density environments of some SNRs, and the different supernova explosion properties.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Supernova remnants - Radio continuum emission - Superbubbles

Simbad objects: 69

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Number of rows : 69
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 30 Dor C Rad 05 36 07.70 -69 11 52.6           ~ 87 1
2 PSR B1834-04 Psr 18 36 51.77000 -04 36 37.3000           ~ 42 0
3 [JD2012] G027.375+01.170 HII 18 37 06 -04 24.5           ~ 2 0
4 PMN J1837-0424 Rad 18 37 06.855 -04 24 18.02           ~ 6 1
5 SNR G026.75+00.73 SR? 18 37 31 -05 09.9           ~ 5 0
6 PSR B1835-04.9 Psr 18 38 11.19 -04 53 23.0           ~ 32 0
7 SNR G027.7+00.6 SNR 18 38 47.633 -04 00 43.63           ~ 9 1
8 3EG J1837-0423 Rad 18 38 52.0 -04 16 16           ~ 95 1
9 PSR J1839-0436 Psr 18 39 00.06 -04 36 57.5           ~ 6 0
10 NVSS J183909-031823 Rad 18 39 09.926 -03 18 24.21           ~ 4 1
11 PSR B1836-03.3 Psr 18 39 37.515 -03 21 10.50           ~ 20 0
12 PMN J1839-0300 Rad 18 39 39.733 -03 00 48.30           ~ 8 1
13 PSR J1839-0459 Psr 18 39 42.7188163224 -04 59 59.234143380           ~ 9 0
14 PSR B1835-00 Psr 18 39 51.06 -04 02 24.9           ~ 9 0
15 PSR J1839-0332 Psr 18 39 56.583 -03 32 58.60           ~ 5 0
16 SNR G027.06+00.04 SR? 18 40 33 -05 12.3           ~ 7 0
17 PSR J1840-0445 Psr 18 40 45.5 -04 45 08           ~ 2 0
18 PSR B1838-04 Psr 18 41 05.66300 -04 25 19.5000           ~ 66 0
19 SNR G027.3+00.0 SNR 18 41 17.8 -04 56 12           ~ 345 3
20 PSR J1841-0500 Psr 18 41 18.14 -05 00 19.5           ~ 54 0
21 PSR J1841-0456 Psr 18 41 19.29 -04 56 11.4           ~ 296 1
22 PSR J1841-0310 Psr 18 41 25.9 -03 10 21           ~ 8 0
23 PSR B1839-03.8 Psr 18 41 38.68 -03 48 42.6           ~ 44 0
24 PSR J1841-0524 Psr 18 41 49.3553989200 -05 24 30.551758848           ~ 43 0
25 PSR J1841-0157 Psr 18 41 56.21 -01 57 54.6           ~ 15 0
26 PSR B1839-04.3 Psr 18 42 11.289 -04 15 38.20           ~ 12 0
27 PSR J1842-0309 Psr 18 42 19.0 -03 09 46           ~ 4 0
28 SNR G028.36+00.21 SR? 18 42 20 -03 58.3           ~ 4 0
29 PSR B1839-04 Psr 18 42 26.4642900744 -04 00 00.516985452           ~ 81 0
30 NVSS J184230-021839 Rad 18 42 30.142 -02 18 41.61           ~ 4 1
31 GPSR 029.089+0.511 Rad 18 42 35.95 -03 11 07.6           ~ 4 0
32 GPSR 029.228+0.518 Rad 18 42 49.861 -03 03 35.96           ~ 3 0
33 PSR B1840-01.9 Psr 18 42 57.870 -01 53 26.70           ~ 12 0
34 PSR B1840-03.9 Psr 18 43 06.67 -03 55 56.0           ~ 21 0
35 PSR J1843-0510 Psr 18 43 09.732 -05 10 04.50           ~ 5 0
36 PSR J1843-0137 Psr 18 43 12.63 -01 37 46.3           ~ 5 0
37 PSR J1843-0459 Psr 18 43 27.643 -04 59 30.40           ~ 14 0
38 PSR J1843-0211 Psr 18 43 30.33 -02 11 02.8           ~ 20 0
39 4C -06.55 Rad 18 43 41.191 -06 01 30.94           ~ 5 1
40 PSR J1843-0408 Psr 18 43 43.4 -04 08 04           ~ 4 0
41 SNR G028.6-00.1 SNR 18 43 55 -03 53.0           ~ 64 1
42 PSR J1844-0452 Psr 18 44 01.54 -04 52 20.9           ~ 4 0
43 PSR B1841-05 Psr 18 44 05.108 -05 38 34.19           ~ 54 0
44 PSR J1844-0302 Psr 18 44 06.918 -03 02 11.20           ~ 6 0
45 PSR J1844-0346 Psr 18 44 32.90 -03 46 26.6           ~ 45 0
46 PSR B1841-04 Psr 18 44 33.44600 -04 33 12.5000           ~ 46 1
47 PSR J1844-0502 Psr 18 44 33.96 -05 02 00.5           ~ 3 0
48 SNR G029.38+00.10 SR? 18 44 36 -03 06.9           ~ 5 0
49 GAL 029.39+00.10 rG 18 44 36.8 -03 06 31           ~ 2 0
50 3XMM J184442.9-030525 X 18 44 42.96 -03 05 25.7           ~ 3 0
51 PSR B1842-02 Psr 18 44 44.975 -02 44 40.90           ~ 28 0
52 PSR B1842-03.2 Psr 18 44 45.48 -03 10 37.1           ~ 12 0
53 SNR G029.6+00.1 SNR 18 44 52 -02 56.5           ~ 61 1
54 AX J1844.8-0258 HXB 18 44 53 -02 56.0           ~ 126 0
55 SNR G028.78-00.44 SR? 18 45 25 -03 53.6           ~ 8 0
56 SNR G028.7-00.4 SNR 18 45 30 -03 54.0           ~ 2 0
57 PSR B1842-04 Psr 18 45 34.709 -04 34 29.80           ~ 45 0
58 SNR G029.41-00.18 SR? 18 45 39 -03 13.0           ~ 5 0
59 PSR J1845-0316 Psr 18 45 52.9 -03 16 05           ~ 15 0
60 IRAS 18435-0446 Mi* 18 46 12.5952395496 -04 43 10.515201420           ~ 4 0
61 PSR J1846-02 Psr 18 46 15.49 -02 57 36.0           ~ 34 0
62 RFS 453 Rad 18 46 17.6 -04 44 13           ~ 2 0
63 PMN J1846-0445 Rad 18 46 18.852 -04 43 59.47           ~ 2 0
64 SNR G029.7-00.3 SNR 18 46 22.8 -02 59 47           ~ 375 2
65 PSR J1846-0258 Psr 18 46 24.75 -02 58 29.6           ~ 388 2
66 PSR J1847-0427 Psr 18 47 18.860 -04 27 59.00           ~ 3 0
67 PSR B1844-04 Psr 18 47 22.8222581784 -04 02 13.031112264           ~ 125 0
68 PSR B1847-03.3 Psr 18 49 57.85 -03 17 31.0           ~ 15 0
69 PSR J1851-0241 Psr 18 51 15.3 -02 41 31           ~ 2 0

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