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Results tagged with radio-astronomy
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user 34155
Questions about observations performed in the radio frequency range of the electromagnetic spectrum.
1
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1
answer
167
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Why is the peak value(s) of the spectral radiance of the CMB different if you calculate with...
On Wikipedia, the calculated value of the peak frequency of the cosmic microwave background is 160.23 GHz, but it says if you do the calculating with wavelengths, then convert to frequency, you get a …
- 5,585
6
votes
1
answer
359
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If a pulsar's rotational and magnetic axes were aligned and both aimed at us, would we see a...
In other words, a non-pulsing pulsar?
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0
votes
1
answer
76
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What is the 'AT' astronomical catalogue? And the 'TXS' one? As in AT2019dsg and AT2019fdr?
I cannot find a site stating what the AT or TXS star/astronomy catalogues are, even though some AT and TXS 'events' have been in the news lately....
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3
votes
1
answer
104
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What does lowercase 'beta' mean in this graph of radio-emitting galaxies?
Correlation between the mass of the galaxies (X-axis) and the difference of their radio emissions at different radio frequencies (Y-axis). Each symbol represents an individual galaxy. The image of a …
- 5,585
9
votes
2
answers
434
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Do the neutrons in neutron stars emit the radio waves?
Neutrons can, especially in extreme circumstances (and large concentrations) emit electromagnetic radiation. I specifically asked about this in Physics S.E. Has a free neutron ever been shown to absor …
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3
votes
1
answer
220
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How, precisely, do radio astronomers detect (and record) the phases of waves for interferome...
Interferometry is always in the news, and at radio frequencies it has been for a long time...
The popular press always talks about directly 'interfering' two waves as they come in, but can they tell t …
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