scholarly journals Faraday Rotation Effects associated with the Radio Source Centaurus A

Nature ◽  
1962 ◽  
Vol 196 (4856) ◽  
pp. 760-760 ◽  
Author(s):  
D. W. SCIAMA
Keyword(s):  
Radio Source ◽  
Faraday Rotation ◽  
Centaurus A

scholarly journals Faraday Rotation Effects associated with the Radio Source Centaurus A

Nature ◽  
1962 ◽  
Vol 196 (4856) ◽  
pp. 761-761 ◽  
Author(s):  
B. F. C. COOPER ◽  
R. M. PRICE
Keyword(s):  
Radio Source ◽  
Faraday Rotation ◽  
Centaurus A

scholarly journals Emission Regions in Centaurus A

1982 ◽  
Vol 97 ◽  
pp. 115-116
Author(s):  
R. M. Price ◽  
J. A. Graham
Keyword(s):  
Radio Source ◽  
Faraday Rotation ◽  
Linear Polarization ◽  
Radio Galaxy ◽  
Radio Galaxies ◽  
Extragalactic Radio Source ◽  
Physical Mechanisms ◽  
Centaurus A

Centaurus A, at an estimated distance of five megaparsecs, is the closest radio galaxy. It presents the best opportunity to examine in detail the physical mechanisms and resulting structures that are to be found in radio galaxies. Centaurus was first studied in detail at radio wavelengths by Cooper, Price and Cole (1965), hence CPC. Many of the comments, interpretations, and conclusions recorded in that paper remain valid today and provide the broader framework in which the more detailed studies using today's more powerful instrumentation can be understood. Historically, it is also interesting to note that Centaurus A was the first extragalactic radio source in which linear polarization and Faraday rotation were discovered and extensively studied.

Faraday Rotation Effects associated with the Radio Source Centaurus A

Nature ◽  
1962 ◽  
Vol 195 (4846) ◽  
pp. 1084-1085 ◽  
Author(s):  
B. F. C. COOPER ◽  
R. M. PRICE
Keyword(s):  
Radio Source ◽  
Faraday Rotation ◽  
Centaurus A

A Centaurus A : Spectra of the Optical Filament

1975 ◽  
Vol 2 (6) ◽  
pp. 366-367 ◽  
Author(s):  
B.A. Peterson ◽  
R.J. Dickens ◽  
R.D. Cannon
Keyword(s):  
Radio Source ◽  
Elliptical Galaxy ◽  
Brightness Distribution ◽  
Radio Brightness ◽  
Dust Lane ◽  
X Ray ◽  
The Galaxy ◽  
Centaurus A

The radio source, Cen A, is large and complex with many peaks in the brightness distribution over an area about 4 x 10 degrees. The peculiar elliptical galaxy NGC 5128 lies between the two strong inner radio brightness peaks and is centred on a weaker central radio source. This radio source is in the centre of the dust lane which divides the galaxy and may be related to the infrared, X-ray and γ-ray sources.

scholarly journals A Counterjet in the Nucleus of Centaurus A

1996 ◽  
Vol 175 ◽  
pp. 23-24
Author(s):  
D.L. Jones ◽  
S.J. Tingay ◽  
R.A. Preston ◽  
D.L. Jauncey ◽  
J.E. Reynolds ◽  
...  
Keyword(s):  
Radio Source ◽  
Radio Galaxy ◽  
Dense Plasma ◽  
Jet Formation ◽  
Radio Jets ◽  
Compact Radio Source ◽  
Centaurus A

Centaurus A (NGC 5128) is the nearest giant radio galaxy. It is a Fanaroff-Riley type 1 (low luminosity) radio source, but the compact radio source in the nucleus is strong enough that VLBI imaging has been possible with both the SHEVE array and the VLBA at several frequencies. These observations have detected a sub-parsec scale counterjet. This shows that jet formation in at least some FR I sources is intrinsically two-sided over very small distances and the radio jets in Centaurus A are probably only moderately relativistic. We also find evidence that the center of activity in Centaurus A is partially obscured by a disk or torus of dense plasma.

scholarly journals A Study of the Decimetric Emission and Polarization of Centaurus A

1965 ◽  
Vol 18 (6) ◽  
pp. 590 ◽  
Author(s):  
BFC Cooper ◽  
RM Price ◽  
DJ Cole
Keyword(s):  
Wavelength Range ◽  
Faraday Rotation ◽  
Intrinsic Polarization ◽  
Centaurus A

The results of a study of Centaurus A in the wavelength range 6-74 cm are presented. From observations at 11, 21, and 31 cm the intrinsic polarization and Faraday rotation have been determined for much of the source.

scholarly journals Detection of Parsec-Scale Circular Polarization with the VLBA

1998 ◽  
Vol 164 ◽  
pp. 123-124
Author(s):  
D. C. Homan ◽  
J. F.C. Wardle ◽  
R. Ojha ◽  
D. H. Roberts
Keyword(s):  
Radio Source ◽  
Circular Polarization ◽  
Faraday Rotation ◽  
Low Energy ◽  
Relativistic Electrons ◽  
Compact Radio Source ◽  
Electron Positron

AbstractCircular polarization has been detected in 3C 279 and 3C 84 at multiple epochs, using the VLBA at 15 GHz. This is the first detection of circular polarization in a compact radio source at VLBI resolution. In the case of 3C 279 the polarization is most likely produced by the conversion of linear to circular polarization by low energy relativistic electrons in the emitting region. If this is so, the absence of Faraday rotation by the same electrons suggests that the jet consists of an electron-positron plasma.

Central Component of the Radio Source Centaurus A

Nature ◽  
1961 ◽  
Vol 191 (4790) ◽  
pp. 793-794 ◽  
Author(s):  
P. MALTBY
Keyword(s):  
Radio Source ◽  
Central Component ◽  
Centaurus A

Precession in the Jet of NGC 5128 (Centaurus A)

1983 ◽  
Vol 5 (2) ◽  
pp. 241-247 ◽  
Author(s):  
R.F. Haynes ◽  
R.D. Cannon ◽  
R.D. Ekers
Keyword(s):  
Radio Source ◽  
Spiral Galaxy ◽  
Dust Lane ◽  
Double Radio Source ◽  
Centaurus A

NGC 5128, identified with the radio source Centaurus A by Bolton et al. (1949), is a remarkable galaxy which appears to consist of an elliptical or SO galaxy crossed by a strong dust lane. The early idea that this represented a pair of colliding galaxies (Baade and Minkowski 1954) powering the extended double radio source fell out of favour but has recently been revived (Malin et al. 1983) in the light of extensive kinematic evidence. However, the interpretation of the data is not yet complete, and it has also been suggested recently that NGC 5128 is really a spiral galaxy with a spectacularly large bulge (Marcelin et al. 1982).

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