2009ApJ...694.1452W

Query : 2009ApJ...694.1452W

2009ApJ...694.1452W - Astrophys. J., 694, 1452-1463 (2009/April-1)

Confirmation of a Faraday rotation measure anomaly in Cygnus.

WHITING C.A., SPANGLER S.R., INGLEBY L.D. and HAFFNER L.M.

Abstract (from CDS):

We confirm the reality of a reversal of the sign of the Faraday rotation measure in the Galactic plane in Cygnus (Lazio et al. 1990), possibly associated with the Cygnus OB1 association. The rotation measure changes by several hundred rad/m2 over an angular scale of 2°-5°. We show that a simple model of an expanding plasma shell with an enhanced density and magnetic field can account for the magnitude and angular scale of this feature. This model is consistent with observations of Hα emission as well as other observations in this part of sky. We suggest that this structure is physically associated with a superbubble produced by the Cygnus OB1 association.

Abstract Copyright: ∼

Journal keyword(s): ISM: bubbles - H II regions - ISM: magnetic fields

Simbad objects: 20

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Number of rows : 20
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 SH 2-205 HII 03 52 14 +53 25.0           ~ 40 0
2 ICRF J052109.8+163822 Sy1 05 21 09.88596258 +16 38 22.0515459   19.37 18.84 18.480   ~ 910 1
3 NAME Gal Anticenter reg 05 46 +28.9           ~ 1024 0
4 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
5 NAME Aql Rift DNe 18 32 -01.0           ~ 355 1
6 Min 3-60 LP? 20 04 23.6504906400 +33 39 04.363566300           K?e 66 1
7 [LSC90] 2004+369 ? 20 06 32 +37 03.8           ~ 2 0
8 [LSC90] 2005+368 NP Rad 20 07 38.520 +36 58 47.01           ~ 2 0
9 NVSS J200739+365842 Rad 20 07 39.159 +36 58 43.59           ~ 6 1
10 [LSC90] 2007+365 SF Rad 20 09 38.387 +36 41 04.20           ~ 2 0
11 [LSC90] 2007+365 ? 20 09 38.4 +36 41 04           ~ 2 0
12 [LSC90] 2011+360 ? 20 13 34.4 +36 09 26           ~ 2 0
13 [LSC90] 2011+360 SP Rad 20 13 34.509 +36 09 25.74           ~ 2 0
14 [LSC90] 2013+362 ? 20 15 16.4 +36 26 58           ~ 2 0
15 [LSC90] 2013+362 SP Rad 20 15 16.469 +36 26 58.85           ~ 2 0
16 QSO J2015+371 BLL 20 15 28.72978661 +37 10 59.5147372     21.82 21.4   ~ 324 2
17 [CCS92] 2015+336A Rad 20 17 12.7 +33 45 49           ~ 4 0
18 Ass Cyg OB 1 As* 20 17.8 +37 38           ~ 270 1
19 [CCS92] 2016+325A Rad 20 18 43.3 +32 43 44           ~ 2 0
20 NAME Cyg Complex reg 20 32 +45.0           ~ 667 0

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