2019A&A...623A.105G


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.28CET21:39:44

2019A&A...623A.105G - Astronomy and Astrophysics, volume 623A, 105-105 (2019/3-1)

A Sino-German λ6 cm polarisation survey of the Galactic plane. IX. H II regions.

GAO X.Y., REICH P., HOU L.G., REICH W. and HAN J.L.

Abstract (from CDS):


Context. Large-scale radio continuum surveys provide data to get insights into the physical properties of radio sources. HII regions are prominent radio sources produced by thermal emission of ionised gas around young massive stars.
Aims. We identify and analyse HII regions in the Sino-German λ6cm polarisation survey of the Galactic plane.
Methods. Objects with flat radio continuum spectra together with infrared and/or Hα emission were identified as HII regions. For HII regions with small apparent sizes, we cross-matched the λ6cm small-diameter source catalogue with the radio HII region catalogue compiled by Paladini and the infrared HII region catalogue based on the WISE data. Effelsberg λ21 cm and λ11cm continuum survey data were used to determine source spectra. High angular resolution data from the Canadian Galactic Plane Survey and the NRAO VLA Sky Survey were used to solve the confusion when low angular resolution observations were not sufficient. Extended HII regions were identified by eye by overlaying the Paladini and the WISE HII regions onto the λ6cm survey images for coincidences. The TT-plot method was employed for spectral index verification.
Results. A total of 401 HII regions were identified and their flux densities were determined with the Sino-German λ6cm survey data. In the surveyed area, 76 pairs of sources are found to be duplicated in the Paladini HII region catalogue, mainly due to the non-distinction of previous observations with different angular resolutions and 78 objects in their catalogue are misclassified as HII regions, being actually planetary nebulae, supernova remnants, or extragalactic sources that have steep spectra. More than 30 HII regions and HII region candidates from our λ6 cm survey data, especially extended ones, do not have counterparts in the WISE HII region catalogue, of which 9 are identified for the first time. Our results imply that some more Galactic HII regions still await to be discovered and the combination of multi-domain observations is important for HII region identification. Based on the newly derived radio continuum spectra and the evidence of infrared emission, the previously identified SNRs G11.1-1.0, G20.4+0.1 and G16.4-0.5 are believed to be HII regions.

Abstract Copyright: © ESO 2019

Journal keyword(s): H II regions - radio continuum: general - methods: observational

VizieR on-line data: <Available at CDS (J/A+A/623/A105): table2.dat table3.dat table4.dat table5.dat refs.dat>

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 72

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Number of rows : 72

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 LBN 119.57-00.92 HII 00 21 16 +61 43.5           ~ 36 0
2 [KC97c] G119.4-00.8 HII 00 21 27.1 +61 49 33           ~ 2 0
3 GAL 119.6+00.4 HII 00 22 +63.1           ~ 2 0
4 GAL 124.0+01.4 HII 01 00.8 +64 15           ~ 2 0
5 GAL 124.9+00.1 HII 01 08.7 +62 54           ~ 5 0
6 SNR G126.2+01.6 SNR 01 22.0 +64 15           ~ 48 0
7 SNR G127.1+00.5 SNR 01 28 20.000 +63 10 00.00           ~ 90 0
8 3C 48 QSO 01 37 41.2995845985 +33 09 35.079126038   16.62 16.20     ~ 2536 2
9 NAME Per Arm PoG 03 30 +45.0           ~ 1280 0
10 4C 32.14 QSO 03 36 30.10760600 +32 18 29.3422210     17.50 16.6   ~ 584 1
11 SH 2-205 HII 03 52 14 +53 25.0           ~ 35 0
12 [SSH2008b] G149.5+00.0 HII 04 02 +52.8           ~ 2 0
13 [SSH2008b] G148.8+02.3 HII 04 09 +54.9           ~ 2 0
14 SH 2-209 HII 04 11 06.7 +51 09 44           ~ 91 0
15 ICRF J052109.8+163822 Sy1 05 21 09.88592749 +16 38 22.0517668   19.37 18.84 18.480   ~ 758 1
16 [SSH2008b] G169.9+02.0 HII 05 28 +38.5           ~ 2 0
17 NVSS J060358+301522 Rad 06 03 58.40 +30 15 22.8           ~ 2 1
18 SH 2-241 HII 06 04.1 +30 15           ~ 55 1
19 LBN 192.48-00.21 HII 06 11 59 +18 03.3           ~ 87 0
20 IC 2162 HII 06 13 04.1 +17 58 44           ~ 339 2
21 SH 2-253 HII 06 25.8 +20 01           ~ 21 0
22 ICRF J084047.5+131223 Sy1 08 40 47.58841798 +13 12 23.5641152   18.58 18.15 17.622   ~ 388 1
23 NGC 2682 OpC 08 51 18 +11 48.0           ~ 2061 0
24 NAME Car Arm PoG 10 00 -60.0           ~ 384 1
25 3C 286 Sy1 13 31 08.2885060664 +30 30 32.960825108   17.51 17.25     ~ 3791 1
26 NAME Nor Arm PoG 16 00 -50.0           ~ 347 0
27 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11831 0
28 NGC 6537 PN 18 05 13.104 -19 50 34.88     13.58     ~ 413 1
29 LBN 015.14+03.38 HII 18 06.1 -14 09           ~ 9 0
30 LBN 012.00+00.79 HII 18 08 51.2 -18 15 36           ~ 7 0
31 LBN 012.71+00.37 HII 18 12 10.7 -17 42 48           ~ 15 0
32 SNR G011.2-01.1 SNR 18 14.0 -19 46           ~ 59 1
33 NVSS J181435-164530 Rad 18 14 35.98 -16 45 30.7           ~ 1 0
34 NGC 6590 RNe 18 17 06 -19 51.9           ~ 21 0
35 RCW 156 HII 18 17.9 -17 29           ~ 4 0
36 SNR G016.4-00.5 Rad 18 22.6 -14 55           ~ 13 1
37 SH 2-53 HII 18 25 16.3 -13 13 17           ~ 22 0
38 LBN 016.31-00.12 HII 18 25.6 -14 42           ~ 12 0
39 SNR G020.4+00.1 SNR 18 27.8 -11 00           ~ 20 0
40 LBN 023.16+00.49 HII 18 31.4 -08 28           ~ 8 0
41 LBN 028.77+03.43 HII 18 31 26.5 -02 04 22           ~ 190 2
42 SNR G024.7+00.6 SNR 18 34 46 -07 05.8           ~ 79 0
43 [KC97c] G024.7-00.2a HII 18 36 52.2 -07 24 54           ~ 4 0
44 [KC97c] G024.7-00.2b HII 18 37 09.6 -07 22 44           ~ 5 0
45 4C -04.71 Rad 18 41 19.8 -04 56 06           ~ 301 3
46 LBN 032.38+01.93 HII 18 44 13.8 -00 18 53   14.93 14.05     ~ 17 0
47 RCW 177 HII 18 44.4 -00 21           ~ 4 0
48 SNR G030.8-00.0 SNR 18 47 32 -01 56.5           ~ 448 0
49 NAME Sgr Arm PoG 19 00 -30.0           ~ 533 1
50 RCW 179 HII 19 03.7 +02 13           ~ 7 0
51 SH 2-72 HII 19 03.8 +02 19   13.71 13.07     ~ 8 0
52 NRAO 591 HII 19 03.8 +05 39           ~ 15 0
53 SNR G041.5+00.4 SR? 19 05 48 +07 46.1           ~ 12 0
54 LBN 039.95-01.44 HII 19 08 31.0 +05 35 50   13.70 12.39     ~ 33 0
55 SNR G045.5+00.1 SNR 19 14 20 +11 09.1           ~ 12 0
56 GAL 045.5+00.0 HII 19 14 20.8 +11 09 04           ~ 138 0
57 [OMN2000] Region 3 PoC 19 23 29.3 +14 31 38           ~ 152 0
58 4C 18.57 Rad 19 31 40.28 +18 48 14.3           ~ 6 1
59 LBN 063.10+00.46 HII 19 49 11.7 +26 51 36   14.60 13.63     ~ 52 0
60 LBN 064.20-00.44 HII 19 55 02 +27 12.8   15.04 13.64     ~ 28 0
61 LBN 068.07+00.92 HII 19 59 01 +31 22.5   14.25 13.53     ~ 26 0
62 SH 2-104 HII 20 24 37 +38 31.9           ~ 93 0
63 NAME Cyg X Cld 20 28 41 +41 10.2           ~ 635 1
64 NAME Outer Arm PoG 21 48 +69.4           ~ 227 0
65 GAL 098.3-01.6 HII 21 57 +52.7           ~ 2 0
66 LBN 104.39+01.32 HII 22 22 11.6 +58 44 18           ~ 36 0
67 LBN 108.78-01.01 HII 22 58 37 +58 46.8           ~ 53 0
68 SH 2-152 HII 22 58 40.862 +58 46 59.27           ~ 133 1
69 IC 1470 HII 23 05 09.9 +60 14 31   11.5       ~ 168 1
70 NAME Local Arm reg ~ ~           ~ 385 0
71 NAME Scutum Spiral Arm PoG ~ ~           ~ 282 0
72 NAME Centaurus Arm PoG ~ ~           ~ 74 0

    Equat.    Gal    SGal    Ecl

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2020.11.28-21:39:44

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