* Absorption and Re-emission: Infrared radiation is strongly absorbed and re-emitted by the outer layers of stars. This means that any infrared photons originating from the core would be unlikely to reach the telescope.
* Fusion Reactions: Fusion reactions primarily emit high-energy photons, such as gamma rays and X-rays. These are not in the infrared spectrum.
* Neutrinos: Fusion reactions also produce a significant number of neutrinos. While these particles can escape from the core, they are very difficult to detect and don't provide a direct image of the fusion processes.
What astronomers use instead:
* Helioseismology: This technique studies the oscillations of the Sun's surface to infer properties of its interior, including the location and intensity of fusion reactions.
* Neutrino Telescopes: These specialized detectors are designed to capture neutrinos from the Sun, providing information about nuclear processes in its core.
* Theoretical Models: Astronomers rely heavily on theoretical models of stellar interiors to understand how stars fuse elements and how their energy is transported.
In summary: While infrared telescopes are valuable tools for studying stars, they cannot directly "see" fusion reactions happening in the core. The extreme temperatures, densities, and radiation within a stellar core make it a difficult environment to probe directly.
