What particle emits the most radio waves?

  • Thread starter S3nkaku
  • Start date
  • #1
1
0

Main Question or Discussion Point

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?
 

Answers and Replies

  • #2
34,056
9,922
All accelerated charges emit electromagnetic waves. The frequency spectrum of those depends on details of the process.
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.
 
  • #3
Drakkith
Staff Emeritus
Science Advisor
20,746
4,454
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)
 
  • #4
blue_leaf77
Science Advisor
Homework Helper
2,629
784
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?
 
  • #5
Drakkith
Staff Emeritus
Science Advisor
20,746
4,454
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.
 
  • #6
tech99
Gold Member
1,815
634
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.
 
  • #7
29
15
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".
 
  • #8
blue_leaf77
Science Advisor
Homework Helper
2,629
784
Naturally that would mean the strongest power in its emitter spectrum.
 

Related Threads on What particle emits the most radio waves?

Replies
3
Views
5K
Replies
18
Views
2K
  • Last Post
Replies
6
Views
2K
Replies
1
Views
1K
  • Last Post
Replies
4
Views
1K
  • Last Post
Replies
1
Views
5K
  • Last Post
Replies
2
Views
13K
  • Last Post
Replies
1
Views
4K
  • Last Post
Replies
5
Views
3K
Top