Discussion Overview
The discussion centers on the average photon densities within galactic environments, particularly in the galactic disc, and how these densities compare to the Cosmic Microwave Background (CMB). The implications of these photon densities on cosmic ray phenomenology are also explored, focusing on the rates of photo-pion production and the potential enhancement of attenuation of ultra-high energy cosmic rays.
Discussion Character
- Exploratory, Technical explanation, Debate/contested
Main Points Raised
- One participant inquires about the average photon densities in galactic environments compared to the CMB, suggesting that local sources may contribute significantly in denser areas like the galactic disc.
- Another participant asks for clarification on how the photon density comparison might impact cosmic ray phenomenology.
- A different participant raises the idea that enhanced rates of photo-pion production in the galactic disc could explain discrepancies in cosmic ray flux and composition observed at extreme energies.
- One participant expresses difficulty in providing assistance and wishes the original poster luck in their search for information.
- The original poster expresses gratitude and hopes to find relevant information, inviting others to share insights if they have any.
Areas of Agreement / Disagreement
The discussion does not reach a consensus, as participants express varying levels of knowledge and engagement with the topic, and no definitive answers or agreements are established.
Contextual Notes
There is a noted lack of existing literature on broad spectrum photon intensities in galactic environments, which may limit the discussion's depth and breadth.