The polarimetric observation facility at the Medicina 32 m parabolic antenna

2002 ◽  
Author(s):  
Alessandro Orfei ◽  
Mauro Roma
Keyword(s):  
Polarimetric Observation ◽  
Parabolic Antenna

Multi-mode OAM parabolic antenna with dual feeds

2020 ◽  
Author(s):  
Yunfan Zhang ◽  
Xianling Liang ◽  
Kun Wang ◽  
Junping Geng ◽  
Ronghong Jin ◽  
...  
Keyword(s):  
Parabolic Antenna ◽  
Multi Mode

scholarly journals High-sensitivity radio study of the non-thermal stellar bow shock EB27

2021 ◽  
Author(s):  
Paula Benaglia ◽  
Santiago del Palacio ◽  
Christopher Hales ◽  
Marcelo E Colazo
Keyword(s):  
Radio Emission ◽  
Massive Star ◽  
High Sensitivity ◽  
Bow Shock ◽  
Relativistic Electrons ◽  
Polarimetric Observation ◽  
Very Large Array ◽  
Thermal Radio Emission ◽  
The Magnetic Field ◽  
Linear Polarisation

Abstract We present a deep radio-polarimetric observation of the stellar bow shock EB27 associated to the massive star BD+43○3654. This is the only stellar bow shock confirmed to have non-thermal radio emission. We used the Jansky Very Large Array in S band (2–4 GHz) to test whether this synchrotron emission is polarised. The unprecedented sensitivity achieved allowed us to map even the fainter regions of the bow shock, revealing that the more diffuse emission is steeper and the bow shock brighter than previously reported. No linear polarisation is detected in the bow shock above 0.5%, although we detected polarised emission from two southern sources, probably extragalactic in nature. We modeled the intensity and morphology of the radio emission to better constrain the magnetic field and injected power in relativistic electrons. Finally, we derived a set of more precise parameters for the system EB27–BD+43○3654 using Gaia Early Data Release 3, including the spatial velocity. The new trajectory, back in time, intersects the core of the Cyg OB2 association.

scholarly journals Effect of Boundary Support and Reflector Dimensions on Inflatable Parabolic Antenna Performance

2012 ◽  
Vol 49 (5) ◽  
pp. 905-914 ◽  
Author(s):  
Michael J. Coleman ◽  
Frank Baginski ◽  
Robert R. Romanofsky
Keyword(s):  
Antenna Performance ◽  
Parabolic Antenna

A high gain parabolic antenna based on gradient metasurface

2019 ◽  
Author(s):  
Han-Ul Bong ◽  
Min-Joo Jeong ◽  
Niamat Hussain ◽  
Anees Abbas ◽  
Seung-Yeop Rhee ◽  
...  
Keyword(s):  
High Gain ◽  
Parabolic Antenna

The RTI-7.5/250 Reflecting Radio Telescope with a Fully Steerable Parabolic Antenna

1976 ◽  
pp. 205-221
Author(s):  
P. D. Kalachev ◽  
V. P. Nazarov ◽  
A. A. Parshchikov ◽  
B. A. Rozanov
Keyword(s):  
Radio Telescope ◽  
Parabolic Antenna
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