2011A&A...529A..15X


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.04CEST13:18:34

2011A&A...529A..15X - Astronomy and Astrophysics, volume 529A, 15-15 (2011/5-1)

A Sino-German λ6 cm polarization survey of the Galactic plane. IV. The region from 60° to 129° longitude.

XIAO L., HAN J.L., REICH W., SUN X.H., WIELEBINSKI R., REICH P., SHI H. and LOCHNER O.

Abstract (from CDS):

Linear polarization of diffuse Galactic emission is a signature of magnetic fields in the interstellar medium of our Galaxy. Observations at high frequencies are less affected by Faraday depolarization than those at lower frequencies and are able to detect polarized emission from more distant Galactic regions. We attempt to perform a sensitive survey of the polarized emission from the Galactic disk at λ6cm wavelength. We made polarization observations of the Galactic plane using the Urumqi 25-m telescope at λ6cm covering the area of 60°≤l≤129° and |b|≤5°. Missing large-scale structures in polarization were restored by extrapolation of the WMAP polarization data. We present λ6cm total intensity and linear polarization maps of the surveyed region. We identify two new extended HII regions G98.3-1.6 and G119.6+0.4 in this region. Numerous polarized patches and depolarization structures are visible in the polarization maps. Depolarization along the periphery of a few HII complexes was detected and can be explained by a Faraday screen model. We discuss some prominent depolarization HII regions, which have regular magnetic fields of several µG. Structure functions of U, Q, and PI images of the entire λ6cm survey region of 10°≤l≤230° exhibit much larger fluctuation power towards the inner Galaxy, which suggests a higher turbulence in the arm regions of the inner Galaxy. The Sino-German λ6cm survey reveals new properties of the diffuse magnetized interstellar medium. The survey is also very useful for studying individual objects such as HII regions, which may act as Faraday screens with high rotation measures and strong regular magnetic fields inside.

Abstract Copyright:

Journal keyword(s): surveys - polarization - radio continuum: general - methods: observational - ISM: magnetic fields - HII regions

Simbad objects: 39

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Number of rows : 39

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 GRS G118.10 +05.00 Rad 00 01 14 +67 24.7           ~ 21 1
2 Cl Berkeley 59 OpC 00 02 14 +67 25.0           ~ 71 0
3 GAL 119.6+00.4 HII 00 22 +63.1           ~ 2 0
4 SH 2-177 HII 00 31.5 +62 28           ~ 23 0
5 GAL 124.9+00.1 HII 01 08.7 +62 54           ~ 5 0
6 GAL 125.6-01.8 HII 01 13 +61.0           ~ 3 0
7 3C 48 QSO 01 37 41.2995845985 +33 09 35.079126038   16.62 16.20     ~ 2495 2
8 SNR G132.6+01.5 SNR 02 17 40 +62 45.0           ~ 158 0
9 W 3 MoC 02 27 04.10 +61 52 27.1           ~ 962 3
10 NAME Heart Nebula HII 02 32.7 +61 27           ~ 281 1
11 IC 1805 OpC 02 32 42 +61 27.0   7.03 6.5     ~ 473 2
12 IC 1848 OpC 02 51 06 +60 24.6   6.87 6.5     ~ 444 2
13 NAME Per Arm PoG 03 30 +45.0           ~ 1247 0
14 ICRF J052109.8+163822 Sy1 05 21 09.88592749 +16 38 22.0517668   19.37 18.84 18.480   ~ 745 1
15 NAME G173 Complex HII 05 35 +36.0           ~ 10 0
16 SH 2-233 HII 05 38 31.5 +35 51 19           ~ 59 1
17 SH 2-231 HII 05 39 12.9 +35 45 54           ~ 118 0
18 SH 2-235 HII 05 41.1 +35 50           ~ 185 0
19 SH 2-232 HII 05 42.5 +36 11           ~ 46 0
20 ICRF J054236.1+495107 Sy1 05 42 36.13789843 +49 51 07.2337251   18.45 17.80 17.210   ~ 1266 1
21 3C 286 Sy1 13 31 08.2885060664 +30 30 32.960825108   17.51 17.25     ~ 3715 1
22 3C 295 Sy2 14 11 20.467 +52 12 09.52   22.34 20.80 18.54   ~ 896 5
23 NAME Sgr Arm PoG 19 00 -30.0           ~ 523 1
24 LBN 064.04+01.79 HII 19 47 00 +28 10.4           ~ 14 0
25 SNR G082.2+05.3 SNR 20 19.0 +45 30           ~ 86 0
26 NAME Cyg X Cld 20 28 41 +41 10.2           ~ 618 1
27 NAME Cyg Complex reg 20 32 +45.0           ~ 520 0
28 SNR G089.0+04.7 SNR 20 45.0 +50 35           ~ 197 0
29 NAME NAN complex HII 20 55 +43.9           ~ 40 0
30 SH 2-131 HII 21 37 07 +57 30.9           ~ 47 1
31 IC 1396 OpC 21 39 00 +57 29.4           ~ 445 1
32 GAL 098.3-01.6 HII 21 57 +52.7           ~ 2 0
33 LBN 104.28+02.09 HII 22 12 44.2 +58 59 56           ~ 39 0
34 CTB 107 Rad 22 24.3 +63 32           ~ 6 0
35 SNR G106.3+02.7 SNR 22 27.5 +60 50           ~ 38 1
36 NAME G105 Complex HII 22 39 +55.6           ~ 1 0
37 BFS 13 HII 22 52.3 +59 01           ~ 4 0
38 LBN 112.52+03.75 HII 23 05.8 +64 40           ~ 14 0
39 NAME Cas A SNR 23 23 24.000 +58 48 54.00           ~ 2413 1

    Equat.    Gal    SGal    Ecl

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2020.07.04-13:18:34

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