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WMO calls for protection of radio frequencies vital to weather forecasts
Weather Forecast
2019/10/25
The World Meteorological Organization is calling on governments to protect radio frequencies allocated to Earth observation services which are vital for weather forecasts and long-term climate change ...
Experimental demonstration of a photonic Aharonov-Bohm effect at radio frequencies
photonic Aharonov-Bohm effect radio frequencies
2015/8/7
Building upon recent theoretical proposals for creating an effective gauge field for photons, we experimentally demonstrate the photonic Aharonov-Bohm effect. The effect relies on the nonrecipro...
Polarised foreground removal at low radio frequencies using rotation measure synthesis: Uncovering the signature of hydrogen reionisation
cosmology observation cosmology theory di use radiation nstrumentation:
2010/11/12
Measurement of redshifted 21-cm emission from neutral hydrogen promises to be the most e ective method for studying the reionisation history of hydrogen and,indirectly, the rst galaxies. These studie...
THE ANALYSIS OF THE POSSIBLE THERMAL EMISSION AT RADIO FREQUENCIES FROM AN EVOLVED SUPERNOVA REMNANT HB 3 (G132.7+1.3)：REVISITED
Radiation mechanisms thermal-Radio continuum general-ISM supernova remnants-ISM individual objects HB3
2009/1/19
It has recently been reported that some of the °ux density values
for an evolved supernova remnant (SNR) HB 3 (G132.7+1.3) are not accurate
enough. In this work we therefore revised the analysis of ...