Measuring Baryon Acoustic Oscillations with Millions of Supernovae

Abstract

Since type Ia Supernovae (SNe) explode in galaxies, they can, in principle, be used as the same tracer of the large-scale structure as their hosts to measure baryon acoustic oscillations (BAOs). To realize this, one must obtain a dense integrated sampling of SNe over a large fraction of the sky, which may only be achievable photometrically with future projects such as the Large Synoptic Survey Telescope. The advantage of SN BAOs is that SNe have more uniform luminosities and more accurate photometric redshifts than galaxies, but the disadvantage is that they are transitory and hard to obtain in large number at high redshift. We find that a half-sky photometric SN survey to redshift z = 0.8 is able to measure the baryon signature in the SN spatial power spectrum. Although dark energy constraints from SN BAOs are weak, they can significantly improve the results from SN luminosity distances of the same data, and the combination of the two is no longer sensitive to cosmic microwave background priors.

4 pages, 3 figures, ApJL accepted

References in corpus (10)

• Rates and properties of type Ia supernovae as a function of mass and star-formation in their host galaxies
• Improving Cosmological Distance Measurements by Reconstruction of the Baryon Acoustic Peak
• The Sloan Digital Sky Survey-II Supernova Survey: Technical Summary
• Cosmological baryonic and matter densities from 600,000 SDSS Luminous Red Galaxies with photometric redshifts
• The Type Ia Supernova Rate at z ~0.5 from the Supernova Legacy Survey
• Using Galaxy Two-point Correlation Functions to Determine the Redshift Distributions of Galaxies Binned by Photometric Redshift
• Cosmic tomographies: baryon acoustic oscillations and weak lensing
• Systematic effects in the sound horizon scale measurements
• Weighing the Universe with Photometric Redshift Surveys and the Impact on Dark Energy Forecasts
• Survey Requirements for Accurate and Precise Photometric Redshifts for Type Ia Supernovae

Cited by in corpus (2)

• Distance, Growth Factor, and Dark Energy Constraints from Photometric Baryon Acoustic Oscillation and Weak Lensing Measurements
• Testing and selection of cosmological models with $(1+z{)}^6$ corrections