4 ms·
So I was wondering if it could be that at the point of measurement it was moving very fast towards us. Napkin math says for photons to have 200 times more energ
by comboy 3y ago
So I was wondering if it could be that at the point of measurement it was moving very fast towards us. Napkin math says for photons to have 200 times more energy than expected it would need to be moving at 0.99995c. Huh.
- sime2009 3y agoIt's a photon. Photons always have speed = 1C.
- tux3 3y ago(in a vacuum)
- StevenHarlow 3y agoTechnically no, photons don't always have a speed of 1C, as C is the speed of light _in a vacuum_. In more dense matter the speed of light will slow down.
- uoaei 3y agoTechnically true and also completely irrelevant for this thread.
- deleted 3y ago[deleted]
- rainbowzootsuit 3y ago"If the emitter is coming towards us that would blue-shift photons," is, I think, the point of the previous person's comment.
- comboy 3y agoI'm talking about the pulsar speed. https://en.wikipedia.org/wiki/Relativistic_Doppler_effect https://en.wikipedia.org/wiki/Relativistic_Doppler_effect
- lazide 3y agoBlueshift == relative speed difference, which manifests for a photon in the form of more energy in the form of a shorter wavelength no? Gamma rays being an extreme example. That much blueshift means that much more relative speed towards us. Redshift being the corresponding speed difference ‘away’.