Beyond the classical distance-redshift test: cross-correlating\n redshift-free standard candles and sirens with redshift surveys

2018/08/20 by Suvodip Mukherjee, B. D. Wandelt, Mukherjee, Suvodip +1 · 4 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #Gamma-ray bursts and supernovae #Instrumentation and Methods for Astrophysics (astro-ph.IM) #Pulsars and Gravitational Waves Research

paper · pdf · doi:10.48550/arxiv.1808.06615

openalex publication_date 2018/08/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

LSST will supply up to 10⁶ supernovae (SNe) to constrain dark energy\nthrough the distance-redshift (D_L-z) test. Obtaining spectroscopic SN\nredshifts (spec-zs) is unfeasible; alternatives are suboptimal and may be\nbiased. We propose a powerful multi-tracer generalization of the\nAlcock-Paczynski test that pairs redshift-free distance tracers and an\noverlapping galaxy redshift survey. Cross-correlating 5\× 10⁴\nredshift-free SNe with DESI or Euclid outperforms the classical D_L-z test\nwith spec-zs for all SN. Our method also applies to gravitational wave sirens\nor any redshift-free distance tracer.\n

Cited by

• First measurement of the Hubble constant from gravitational wave-galaxy cross-correlations
• Cosmology beyond standard sirens: cross-correlation of gravitational waves and neutral hydrogen intensity mapping
• Inferring cosmological parameters from galaxy and dark sirens cross-correlation
• Modeling Gravitational Wave Bias from 3D Power Spectra of Spectroscopic Surveys

Related

• A Sparse Spectroscopic Supernova Survey
• Accurate redshift determination of standard sirens by the luminosity distance space-redshift space large scale structure cross correlation
• SNIa photometric studies in SNLS
• Astrometric Redshifts of Supernovae
• Evaluating Cosmological Biases using Photometric Redshifts for Type Ia Supernova Cosmology with the Dark Energy Survey Supernova Program