To set up parameters for the sherpa tool • Physics Forums

waglebivu · 2023-02-17T12:50:04+00:00

How to set the parameters - photon index and metal abundance in the CIAO-sherpa tool for an x-ray source?

Thread 'How Can Photons Be Massless Yet Have Energy According to Einstein's Equations?'

Since E = mc^2, how can photons be massless? If a photon has no mass, then, according to Einstein's formula, its energy is given by E = 0 x c^2, which is 0. Yet, photons do have energy. This seems to be a complete contradiction. Please explain! Thank you.

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A To set up parameters for the sherpa tool

Thread 'How Can Photons Be Massless Yet Have Energy According to Einstein's Equations?'

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