Testing the mutual consistency of different supernovae surveys

Abstract

It is now common practice to constrain cosmological parameters using supernovae (SNe) catalogues constructed from several different surveys. Before performing such a joint analysis, however, one should check that parameter constraints derived from the individual SNe surveys that make up the catalogue are mutually consistent. We describe a statistically-robust mutual consistency test, which we calibrate using simulations, and apply it to each pairwise combination of the surveys making up, respectively, the UNION2 catalogue and the very recent JLA compilation by Betoule et al. We find no inconsistencies in the latter case, but conclusive evidence for inconsistency between some survey pairs in the UNION2 catalogue.

arXiv comment8 pages, 9 figures, submitted to MNRAS

References in corpus (37)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• Type Ia Supernova Discoveries at z>1 From the Hubble Space Telescope: Evidence for Past Deceleration and Constraints on Dark Energy Evolution
• MultiNest: an efficient and robust Bayesian inference tool for cosmology and particle physics
• The Supernova Legacy Survey: Measurement of Omega_M, Omega_Lambda and w from the First Year Data Set
• New Hubble Space Telescope Discoveries of Type Ia Supernovae at z > 1: Narrowing Constraints on the Early Behavior of Dark Energy
• The Hubble Space Telescope Cluster Supernova Survey: V. Improving the Dark Energy Constraints Above z>1 and Building an Early-Type-Hosted Supernova Sample
• Multimodal nested sampling: an efficient and robust alternative to MCMC methods for astronomical data analysis
• New Constraints on ${\Omega }_M$, ${\Omega }_{\Lambda }$, and w from an Independent Set of Eleven High-Redshift Supernovae Observed with HST
• Spectra and Light Curves of Six Type Ia Supernovae at 0.511 < z < 1.12 and the Union2 Compilation
• Observational Constraints on the Nature of the Dark Energy: First Cosmological Results from the ESSENCE Supernova Survey
• Improved Distances to Type Ia Supernovae with Multicolor Light Curve Shapes: MLCS2k2
• BVRI Light Curves for 22 Type Ia Supernovae
• First-year Sloan Digital Sky Survey-II (SDSS-II) Supernova Results: Hubble Diagram and Cosmological Parameters
• Constraints on Cosmological Models from Hubble Space Telescope Observations of High-z Supernovae
• The Absolute Luminosities of the Calan/Tololo Type Ia Supernovae
• The Supernova Legacy Survey 3-year sample: Type Ia Supernovae photometric distances and cosmological constraints
• CfA3: 185 Type Ia Supernova Light Curves from the CfA
• The Sloan Digital Sky Survey-II Supernova Survey: Technical Summary
• UBVRI Light Curves of 44 Type Ia Supernovae
• The Carnegie Supernova Project: First Photometry Data Release of Low-Redshift Type Ia Supernovae
• SNANA: A Public Software Package for Supernova Analysis
• The ESSENCE Supernova Survey: Survey Optimization, Observations, and Supernova Photometry
• SALT: a Spectral Adaptive Light curve Template for Type Ia Supernovae
• BVRI Light Curves for 29 Type Ia Supernovae
• SiFTO: An Empirical Method for Fitting SNe Ia Light Curves
• The Sloan Digital Sky Survey-II: Photometry and Supernova Ia Light Curves from the 2005 data
• Type Ia Supernova Light Curve Inference: Hierarchical Models in the Optical and Near Infrared
• Bayesian evidence as a tool for comparing datasets
• Bayesian Selection of sign(mu) within mSUGRA in Global Fits Including WMAP5 Results
• Improved constraints on cosmological parameters from SNIa data
• Real-time Analysis and Selection Biases in the Supernova Legacy Survey
• Standardizing Type Ia Supernova Absolute Magnitudes Using Gaussian Process Data Regression
• Hubble Space Telescope Observations of Nine High-Redshift ESSENCE Supernovae
• Robustness to systematics for future dark energy probes
• Extensive search for bias in SNIa data
• Type Ia supernova parameter estimation: a comparison of two approaches using current datasets

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