Results 261 to 270 of about 11,729,249 (285)

Low-frequency radio astronomy and the origin of cosmic rays

2000
One of the longest standing mysteries in physics and astronomy is the origin of cosmic rays. Space-based low-frequency radio astronomy holds the promise of providing answers to key pieces of this important puzzle. There are a number of important reasons why the study of Galactic low frequency emission will offer new insights into this 87 year-old ...
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Solar system, low frequency radio astronomy from the moon

Advances in Space Research, 1994
Radio astronomy, particularly radio astronomy at low frequencies (< 100 MHz) is becoming more and more difficult to operate from Earth-based observatories because of the proliferation of manmade interferences. At frequencies lower than 10 MHz, observations are rarely possible,or impossible, because of the opacity of the terrestial ionosphere.
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Instrumentation for space-based low frequency radio astronomy

2000
This paper will provide a general overview of the techniques that have been used to measure low frequency radio waves. It will first cover basic antenna systems and problems associated with their implementation on a spacecraft. Then a discussion of receiver types and measurable parameters will follow. Resolution and precision will be addressed.
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Radio Frequency Interference Measurements for a Radio Astronomy Observatory Site in Indonesia

Aerospace, 2021
Timbul Manik
exaly  

Ultra-low-frequency radio astronomy observations from a Seleno-centric orbit

Experimental Astronomy, 2023
Hanna Rothkaehl, Jingye Yan, Yi Min
exaly  

Review of Space-Based Antenna Technology for Low Frequency Radio Astronomy

2022
Qiaoshan Zhang
exaly  

Antenna Simulation Verification for Low-Frequency Radio Astronomy

2025 International Conference on Electromagnetics in Advanced Applications (ICEAA)
L. Kalkman, D.S. Prinsloo, M.J. Arts
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Site selection for a radio astronomy observatory in Turkey: atmospherical, meteorological, and radio frequency analyses

Experimental Astronomy, 2011
İbrahim KÜÇÜK
exaly  

Low Frequency Radio Astronomy and the LOFAR Observatory

2018
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Introduction to special section on Mitigation of Radio Frequency Interference in Radio Astronomy

Radio Science, 2005
Steven W. Ellingson
exaly