Publications by authors named "Shintaro Yoshiura"
Phys Rev Lett
September 2024
Article Synopsis
- The "dark age consistency ratio" is a proposed new observable for studying the 21 cm global signal during the universe's dark ages, aimed at testing models beyond the standard ΛCDM cosmological model.
- This ratio is based on the idea that the shape of the 21 cm signal's frequency response is largely unaffected by cosmological parameters in the ΛCDM framework, yielding a specific value that can help distinguish between models.
- The observable only requires brightness temperature measurements at a few frequency bands, making it feasible to evaluate cosmological theories even with limited data from upcoming lunar telescope missions.
