Weak lensing magnification of Type Ia Supernovae from the Pantheon sample

Abstract

Using data from the Pantheon SN Ia compilation and the Sloan Digital Sky Survey (SDSS), we propose an estimator for weak lensing convergence incorporating positional and photometric data of foreground galaxies. The correlation between this and the Hubble diagram residuals of the supernovae has $3.6\sigma$ significance, and is consistent with weak lensing magnification due to dark matter halos centered on galaxies. We additionally constrain the properties of the galactic haloes, such as the mass-to-light ratio $\Gamma$ and radial profile of the halo matter density $\rho (r)$. We derive a new relationship for the additional r.m.s. scatter in magnitudes caused by lensing, finding ${\sigma }_{\mathrm{lens}}=(0.06\pm 0.017)(d_{\mathrm{C}}(z)/d_{\mathrm{C}}(z=1){)}^{3/2}$ where $d_{\mathrm{C}}(z)$ is the comoving distance to redshift $z$. Hence the scatter in apparent magnitudes due lensing will be of the same size as the intrinsic scatter of SN Ia by $z\sim 1.2$. We propose a modification of the distance modulus estimator for SN Ia to incorporate lensing, which can be easily calculated from observational data. We anticipate this will improve the accuracy of cosmological parameter estimation for high-redshift SN Ia data.

arXiv commentAccepted for publication in MNRAS. 18 pages, 13 figures. Minor method update and additional citations

References in corpus (61)

• The Structure of Cold Dark Matter Halos
• The Seventh Data Release of the Sloan Digital Sky Survey
• Simulating the joint evolution of quasars, galaxies and their large-scale distribution
• The Complete Light-curve Sample of Spectroscopically Confirmed Type Ia Supernovae from Pan-STARRS1 and Cosmological Constraints from The Combined Pantheon Sample
• Dust Grain Size Distributions and Extinction in the Milky Way, LMC, and SMC
• Weak Gravitational Lensing
• SDSS-III: Massive Spectroscopic Surveys of the Distant Universe, the Milky Way Galaxy, and Extra-Solar Planetary Systems
• New Hubble Space Telescope Discoveries of Type Ia Supernovae at z > 1: Narrowing Constraints on the Early Behavior of Dark Energy
• The Dark Energy Survey: more than dark energy - an overview
• Dark matter halo concentrations in the Wilkinson Microwave Anisotropy Probe year 5 cosmology
• Supernova Constraints and Systematic Uncertainties from the First 3 Years of the Supernova Legacy Survey
• SALT2: using distant supernovae to improve the use of Type Ia supernovae as distance indicators
• The Carnegie-Chicago Hubble Program. VIII. An Independent Determination of the Hubble Constant Based on the Tip of the Red Giant Branch
• Cosmic Distances Calibrated to 1% Precision with Gaia EDR3 Parallaxes and Hubble Space Telescope Photometry of 75 Milky Way Cepheids Confirm Tension with LambdaCDM
• How do galaxies populate Dark Matter halos?
• The Supernova Legacy Survey 3-year sample: Type Ia Supernovae photometric distances and cosmological constraints
• PolyChord: nested sampling for cosmology
• Systematic errors in weak lensing: application to SDSS galaxy-galaxy weak lensing
• The Galaxy-mass Correlation Function Measured from Weak Lensing in the SDSS
• Correcting Type Ia Supernova Distances for Selection Biases and Contamination in Photometrically Identified Samples
• Type Ia Supernova Distances at z > 1.5 from the Hubble Space Telescope Multi-Cycle Treasury Programs: The Early Expansion Rate
• Density profiles of galaxy groups and clusters from SDSS galaxy-galaxy weak lensing
• The MICE Grand Challenge Lightcone Simulation I: Dark matter clustering
• Halo mass - concentration relation from weak lensing
• A buyer's guide to the Hubble Constant
• The Redshift Evolution of LCDM Halo Parameters: Concentration, Spin, and Shape
• The MICE Grand Challenge Lightcone Simulation III: Galaxy lensing mocks from all-sky lensing maps
• Measuring the galaxy-mass and galaxy-dust correlations through magnification and reddening
• Photometric redshifts for the SDSS Data Release 12
• The MICE Grand Challenge Lightcone Simulation II: Halo and Galaxy catalogues
• Simulations of the WFIRST Supernova Survey and Forecasts of Cosmological Constraints
• An algorithm to build mock galaxy catalogues using MICE simulations
• KiDS-1000 catalogue: Weak gravitational lensing shear measurements
• Is there proof that backreaction of inhomogeneities is irrelevant in cosmology?
• Safety in numbers: Gravitational Lensing Degradation of the Luminosity Distance-Redshift Relation
• KiDS-1000 Cosmology: constraints beyond flat $\Lambda$CDM
• Confronting theoretical models with the observed evolution of the galaxy population out to z=4
• First Cosmology Results Using Type Ia Supernovae From the Dark Energy Survey: Analysis, Systematic Uncertainties, and Validation
• Model independent $H(z)$ reconstruction using the cosmic inverse distance ladder
• H0LiCOW XII. Lens mass model of WFI2033-4723 and blind measurement of its time-delay distance and $H_0$
• Determination of the Hubble Constant Using a Two-Parameter Luminosity Correction for Type Ia Supernovae
• Dark Energy Survey Year 3 results: curved-sky weak lensing mass map reconstruction
• Galaxy-galaxy lensing constraints on the relation between baryons and dark matter in galaxies in the Red Sequence Cluster Survey 2
• Constraining dark matter halo properties using lensed SNLS supernovae
• Assessing tension metrics with Dark Energy Survey and Planck data
• Measuring the growth of matter fluctuations with third-order galaxy correlations
• A Fundamental Test of the Nature of Dark Matter
• Two- and three-dimensional wide-field weak lensing mass maps from the Hyper Suprime-Cam Subaru Strategic Program S16A data
• Dark matter halo properties from galaxy-galaxy lensing
• Cosmology with the Large Synoptic Survey Telescope: an Overview
• Redshift evolution of the underlying type Ia supernova stretch distribution
• A new stochastic approach to cumulative weak lensing
• Tracing mass and light in the Universe: where is the dark matter?
• Accurate Modeling of Weak Lensing with the sGL Method
• On the Bias of the Distance-Redshift Relation from Gravitational Lensing
• First Cosmology Results Using Type Ia Supernovae From the Dark Energy Survey: Survey Overview and Supernova Spectroscopy
• Accurate weak lensing of standard candles. I. Flexible cosmological fits
• Weak Lensing Observables in the Halo Model
• On the impact of intergalactic dust on cosmology with type Ia supernovae
• Constraints on neutrino masses from the lensing dispersion of Type Ia supernovae
• Weak Lensing of Type Ia Supernovae from the Dark Energy Survey

Cited by in corpus (1)

• The impact of weak lensing on Type Ia supernovae luminosity distances