Cosmological forecasts for future galaxy surveys with the linear point standard ruler: Toward consistent BAO analyses far from a fiducial cosmology

Understand

The linear point (LP) standard ruler was identified as the basis of a purely geometric method for exploiting the Baryon Acoustic Oscillations (BAO).

• The LP exploits the BAO feature imprinted in the galaxy two-point correlation function to measure cosmological distances independent of any specific cosmological model.
• We forecast the expected precision of future and ongoing spectroscopic galaxy surveys to measure distances leveraging the linear point.
• We investigate the cosmological implications of our forecasted results.