Effect of Faraday Rotation on the Circular Polarization of the Crab Nebula

1974 ◽  
Vol 189 ◽  
pp. 249
Author(s):  
Michael J. Gerver
Keyword(s):  
Circular Polarization ◽  
Faraday Rotation ◽  
Crab Nebula ◽  
The Crab Nebula

Coronal Faraday rotation of the Crab Nebula, 1971?1975

Solar Physics ◽  
1976 ◽  
Vol 50 (2) ◽  
pp. 465-480 ◽  
Author(s):  
Y. Sofue ◽  
K. Kawabata ◽  
F. Takahashi ◽  
N. Kawajiri
Keyword(s):  
Faraday Rotation ◽  
Crab Nebula ◽  
The Crab Nebula

scholarly journals Discovery of Interstellar Circular Polarization in the Direction of the Crab Nebula

1973 ◽  
Vol 52 ◽  
pp. 169-179
Author(s):  
P. G. Martin ◽  
R. Illing ◽  
J. R. P. Angel
Keyword(s):  
Circular Polarization ◽  
Crab Nebula ◽  
Small Component ◽  
Metallic Particles ◽  
The Crab Nebula

A search in many small regions of the Crab Nebula has resulted in the detection of a small component of circular polarization. The variation of the sign and magnitude with position in the Nebula indicates that the polarization is of interstellar origin. On the basis of the polarity, strength, and colour dependence, it is concluded that the composition of the aligned grains causing this polarization is dielectric. Metallic particles are clearly ruled out.

scholarly journals Faraday Rotation of the Crab Pulsar Radiation

1971 ◽  
Vol 46 ◽  
pp. 118-118
Author(s):  
R. N. Manchester
Keyword(s):  
Faraday Rotation ◽  
Radio Astronomy ◽  
Crab Nebula ◽  
Position Angle ◽  
Crab Pulsar ◽  
Astronomy Observatory ◽  
Pulsar Radiation ◽  
Rotation Measure ◽  
The Mean ◽  
The Crab Nebula

During April, 1970, the 300-ft telescope of the National Radio Astronomy Observatory was used to determine the mean polarisation of the Crab Nebula pulsar radiation at several frequencies around 400 MHz. The position angle of the highly polarised precursor measured at each frequency, corrected for ionospheric Faraday rotation and plotted against inverse frequency squared is shown in Figure 1. The observed variation of the position angle with frequency is consistent with Faraday rotation of the plane of polarisation with a rotation measure of −40.5 ± 4.5 rad/m2. This value is of the same sign but larger than the rotation measure for the nebular radiation in the vicinity of the pulsar.

Faraday rotation and physical conditions in the Crab Nebula

1991 ◽  
Vol 368 ◽  
pp. 231 ◽  
Author(s):  
Michael F. Bietenholz ◽  
Philipp P. Kronberg
Keyword(s):  
Faraday Rotation ◽  
Crab Nebula ◽  
Physical Conditions ◽  
The Crab Nebula

scholarly journals A sensitive upper limit to the circular polarization of the Crab nebula atλ3 mm

2011 ◽  
Vol 528 ◽  
pp. A11 ◽  
Author(s):  
H. Wiesemeyer ◽  
C. Thum ◽  
D. Morris ◽  
J. Aumont ◽  
C. Rosset
Keyword(s):  
Circular Polarization ◽  
Crab Nebula ◽  
Upper Limit ◽  
The Crab Nebula

Search for Optical Circular Polarization in the Crab Nebula

Nature ◽  
1971 ◽  
Vol 230 (5289) ◽  
pp. 103-103 ◽  
Author(s):  
J. D. LANDSTREET ◽  
J. R. P. ANGEL
Keyword(s):  
Circular Polarization ◽  
Crab Nebula ◽  
The Crab Nebula
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