WSRT observations of radio sources in the galactic plane near l =54°

1986 ◽  
Vol 7 (2) ◽  
pp. 105-112 ◽  
Author(s):  
T. Velusamy ◽  
W. M. Goss ◽  
E. M. Arnal
Keyword(s):  
2008 ◽  
Vol 4 (S259) ◽  
pp. 455-466 ◽  
Author(s):  
JinLin Han

AbstractThe magnetic structure in the Galactic disk, the Galactic center and the Galactic halo can be delineated more clearly than ever before. In the Galactic disk, the magnetic structure has been revealed by starlight polarization within 2 or 3 kpc of the Solar vicinity, by the distribution of the Zeeman splitting of OH masers in two or three nearby spiral arms, and by pulsar dispersion measures and rotation measures in nearly half of the disk. The polarized thermal dust emission of clouds at infrared, mm and submm wavelengths and the diffuse synchrotron emission are also related to the large-scale magnetic field in the disk. The rotation measures of extragalactic radio sources at low Galactic latitudes can be modeled by electron distributions and large-scale magnetic fields. The statistical properties of the magnetized interstellar medium at various scales have been studied using rotation measure data and polarization data. In the Galactic center, the non-thermal filaments indicate poloidal fields. There is no consensus on the field strength, maybe mG, maybe tens of μG. The polarized dust emission and much enhanced rotation measures of background radio sources are probably related to toroidal fields. In the Galactic halo, the antisymmetric RM sky reveals large-scale toroidal fields with reversed directions above and below the Galactic plane. Magnetic fields from all parts of our Galaxy are connected to form a global field structure. More observations are needed to explore the untouched regions and delineate how fields in different parts are connected.


1968 ◽  
Vol 21 (3) ◽  
pp. 369 ◽  
Author(s):  
MJL Kesteven

The results of a survey of radio sources in the galactic plane in the longitude range 1800 to 400 with the 1 mile Molonglo Cross telescope at 408 MHz are presented. The methods of observation and reduction are described briefly. The catalogue lists the position, flux density, size, and spectral index for 80 sources


1983 ◽  
Vol 204 (2) ◽  
pp. 647-654 ◽  
Author(s):  
J. J. Rickard ◽  
W. C. Erickson ◽  
R. A. Perley ◽  
W. M. Cronynt
Keyword(s):  

1988 ◽  
Vol 95 ◽  
pp. 1149 ◽  
Author(s):  
Nebojsa Duric ◽  
P. C. Gregory

1988 ◽  
Vol 328 ◽  
pp. 559 ◽  
Author(s):  
Terry Jay Jones ◽  
Robert Garwood ◽  
John M. Dickey
Keyword(s):  

1992 ◽  
Vol 80 ◽  
pp. 211 ◽  
Author(s):  
D. J. Helfand ◽  
S. Zoonematkermani ◽  
R. H. Becker ◽  
R. L. White
Keyword(s):  

1990 ◽  
Vol 74 ◽  
pp. 181 ◽  
Author(s):  
S. Zoonematkermani ◽  
D. J. Helfand ◽  
R. H. Becker ◽  
R. L. White ◽  
R. A. Perley

1990 ◽  
Vol 140 ◽  
pp. 63-64
Author(s):  
N. Junkes ◽  
E. Fürst ◽  
W. Reich

Data from the Effelsberg Galactic plane survey at 11 cm wavelength have been used to produce a survey of polarized intensity in the first Galactic quadrant. Besides polarized sources (Supernova remnants and extragalactic objects) extended polarized emission features are visible, which are not connected to distinct radio sources. To decide whether these features reflect characteristics of the local field or the distant spiral structure of the Galaxy we performed an integration of polarized intensities as a function of Galactic longitude. An anticorrelation with the thermal background component suggests a distance of more than 6 kpc for some components of the polarized emission. This enables us to derive an upper limit for the uniform component of the Galactic magnetic field.


2010 ◽  
Vol 140 (1) ◽  
pp. 157-166 ◽  
Author(s):  
Robert H. Becker ◽  
David J. Helfand ◽  
Richard L. White ◽  
Deanne D. Proctor

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