What particle emits the most radio waves?

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Discussion Overview

The discussion revolves around the emission of radio waves by particles, elements, or molecules, exploring the conditions under which these emissions occur and the characteristics of radio waves. It touches on theoretical aspects, the nature of electromagnetic radiation, and the factors influencing the emission of radio waves.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants assert that all accelerated charges emit electromagnetic waves, but the specifics depend on the acceleration process and the properties of the particles involved.
  • One participant notes that objects in the universe emit very little radio waves compared to other parts of the electromagnetic spectrum, attributing this to the low energy per photon of radio waves.
  • A question is raised about the relationship between photon energy and the magnitude of the spectrum in the microwave region, indicating uncertainty about the reasoning behind the low emission of radio waves.
  • Another participant suggests that electrons are the best radiators of radio waves due to their low mass and ease of acceleration.
  • There is a discussion about the characteristics of radio waves, including frequency, amplitude, energy, and momentum, with a participant expressing uncertainty about how to quantify or measure their "greatness."
  • One participant mentions that the strongest power in the emitter spectrum could be a relevant factor in discussing radio wave emissions.

Areas of Agreement / Disagreement

Participants express differing views on the conditions and characteristics of radio wave emissions, with no consensus on which particle or element emits the most radio waves. The discussion remains unresolved regarding the specifics of emission and measurement.

Contextual Notes

Limitations include the dependence on definitions of "greatest" in terms of radio wave emission and the unresolved nature of the relationship between photon energy and emission characteristics.

S3nkaku
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I'm operating with the understanding that everything emits radio waves (electromagnetic/light waves). Is this correct? Whatever the answer is, what particle or element or molecule emits the most/greatest radio waves?
 
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All accelerated charges emit electromagnetic waves. The frequency spectrum of those depends on details of the process.
S3nkaku said:
what particle or element or molecule emits the most/greatest radio waves?
That depends on how you accelerate the particles / the charges in the object. There is no intrinsic particle property "emits more/less electromagnetic waves" apart from the charge of the particle.
 
Objects in the universe emit very little radio waves compared with the rest of the spectrum. The reason for this is that the energy per photon of a radio wave is very, very low. Most EM generating processes take place well above this energy range. For example, even the thermal radiation of an object at 4 kelvin peaks far above the frequency of radio waves. (It peaks at 414 GHz actually)
 
Drakkith said:
Objects in the universe emit very little radio waves compared with the rest of the spectrum. The reason for this is that the energy per photon of a radio wave is very, very low.
By energy per photon, do you mean the one corresponding to ## \hbar \omega ##? If yes what does it have to do with the weak magnitude of the spectrum in microwave region?
 
blue_leaf77 said:
By energy per photon, do you mean the one corresponding to ## \hbar \omega ##? If yes what does it have to do with the weak magnitude of the spectrum in microwave region?

Perhaps I shouldn't say that the reason is that the energy per photon increases. I thought it made sense when I wrote it, but now I don't know.
 
S3nkaku said:
I'm operating with the understanding that everything emits radio waves (electromagnetic/light waves). Is this correct? Whatever the answer is, what particle or element or molecule emits the most/greatest radio waves?
Radio waves and EM waves generally are emitted when a charged particle is accelerated. So electrons are the best radiators because they have least mass and are most easily accelerated.
 
S3nkaku said:
most/greatest radio waves?

A radio wave has a frequency, an amplitude, energy, and momentum. We could also describe whether it is plane, cylidrical or spherical (or else), and find out about polarisation, coherence, and uncertainty.

I'm unsure however as how we would count them or measure their "greatness".
 
Naturally that would mean the strongest power in its emitter spectrum.
 

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