Measuring Dark Energy Properties with Photometrically Classified Pan-STARRS Supernovae. II. Cosmological Parameters

Abstract

We use 1169 Pan-STARRS supernovae (SNe) and 195 low-$z$ ($z<0.1$) SNe Ia to measure cosmological parameters. Though most Pan-STARRS SNe lack spectroscopic classifications, in a previous paper (I) we demonstrated that photometrically classified SNe can be used to infer unbiased cosmological parameters by using a Bayesian methodology that marginalizes over core-collapse (CC) SN contamination. Our sample contains nearly twice as many SNe as the largest previous SN Ia compilation. Combining SNe with Cosmic Microwave Background (CMB) constraints from Planck, we measure the dark energy equation of state parameter $w$ to be -0.989$\pm$0.057 (stat$+$sys). If $w$ evolves with redshift as $w(a)=w_0+w_a(1-a)$, we find $w_0=-0.912\pm 0.149$ and $w_a=$ -0.513$\pm$0.826. These results are consistent with cosmological parameters from the Joint Lightcurve Analysis and the Pantheon sample. We try four different photometric classification priors for Pan-STARRS SNe and two alternate ways of modeling CC SN contamination, finding that no variant gives a $w$ differing by more than 2% from the baseline measurement. The systematic uncertainty on $w$ due to marginalizing over CC SN contamination, ${\sigma }_w^{\text{CC}}=0.012$, is the third-smallest source of systematic uncertainty in this work. We find limited (1.6$\sigma$) evidence for evolution of the SN color-luminosity relation with redshift, a possible systematic that could constitute a significant uncertainty in future high-$z$ analyses. Our data provide one of the best current constraints on $w$, demonstrating that samples with $\sim$5% CC SN contamination can give competitive cosmological constraints when the contaminating distribution is marginalized over in a Bayesian framework.

arXiv commentAccepted by ApJ, data release at archive.stsci.edu/prepds/ps1cosmo/index.html

References in corpus (92)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• emcee: The MCMC Hammer
• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• Planck 2013 results. XVI. Cosmological parameters
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Preliminary Maps and Basic Results
• Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
• Type Ia Supernova Discoveries at z>1 From the Hubble Space Telescope: Evidence for Past Deceleration and Constraints on Dark Energy Evolution
• Cosmological parameters from CMB and other data: a Monte-Carlo approach
• Exploring the Expansion History of the Universe
• The Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III
• The Supernova Legacy Survey: Measurement of Omega_M, Omega_Lambda and w from the First Year Data Set
• A 2.4% Determination of the Local Value of the Hubble Constant
• Improved cosmological constraints from a joint analysis of the SDSS-II and SNLS supernova samples
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the Data Release 10 and 11 galaxy samples
• The Clustering of the SDSS DR7 Main Galaxy Sample I: A 4 per cent Distance Measure at z=0.15
• 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
• Observational Probes of Cosmic Acceleration
• The Multi-Object, Fiber-Fed Spectrographs for SDSS and the Baryon Oscillation Spectroscopic Survey
• The 6dF Galaxy Survey: Final Redshift Release (DR3) and Southern Large-Scale Structures
• zCOSMOS: A Large VLT/VIMOS redshift survey covering 0 < z < 3 in the COSMOS field
• Improved Dark Energy Constraints from ~100 New CfA Supernova Type Ia Light Curves
• Supernova Constraints and Systematic Uncertainties from the First 3 Years of the Supernova Legacy Survey
• Cosmology and fundamental physics with the Euclid satellite
• SALT2: using distant supernovae to improve the use of Type Ia supernovae as distance indicators
• BVRI Light Curves for 22 Type Ia Supernovae
• The DEEP2 Galaxy Redshift Survey: Design, Observations, Data Reduction, and Redshifts
• First-year Sloan Digital Sky Survey-II (SDSS-II) Supernova Results: Hubble Diagram and Cosmological Parameters
• The Supernova Legacy Survey 3-year sample: Type Ia Supernovae photometric distances and cosmological constraints
• Rates and properties of type Ia supernovae as a function of mass and star-formation in their host galaxies
• CfA3: 185 Type Ia Supernova Light Curves from the CfA
• H0LiCOW V. New COSMOGRAIL time delays of HE0435-1223: $H_0$ to 3.8% precision from strong lensing in a flat $\Lambda$CDM model
• SNLS3: Constraints on Dark Energy Combining the Supernova Legacy Survey Three Year Data with Other Probes
• The Dependence of Type Ia Supernova Luminosities on their Host Galaxies
• The VIMOS VLT Deep Survey - First epoch VVDS-Deep survey: 11564 spectra with 17.5<=IAB<=24, and the redshift distribution over 0< z <=5
• Planck intermediate results. XLVI. Reduction of large-scale systematic effects in HFI polarization maps and estimation of the reionization optical depth
• Hectospec, the MMT's 300 Optical Fiber-Fed Spectrograph
• Photometric Calibration of the First 1.5 Years of the Pan-STARRS1 Survey
• UBVRI Light Curves of 44 Type Ia Supernovae
• Hubble Residuals of Nearby Type Ia Supernovae Are Correlated with Host Galaxy Masses
• The Carnegie Supernova Project: First Photometry Data Release of Low-Redshift Type Ia Supernovae
• Cosmological Constraints from Measurements of Type Ia Supernovae discovered during the first 1.5 years of the Pan-STARRS1 Survey
• The Carnegie Supernova Project: Analysis of the First Sample of Low-Redshift Type-Ia Supernovae
• The Effect of Host Galaxies on Type Ia Supernovae in the SDSS-II Supernova Survey
• The Carnegie Supernova Project: Second Photometry Data Release of Low-Redshift Type Ia Supernovae
• Cosmological parameters from the comparison of peculiar velocities with predictions from the 2M++ density field
• Correcting Type Ia Supernova Distances for Selection Biases and Contamination in Photometrically Identified Samples
• The Hubble Diagram of the Calan/Tololo Type Ia Supernovae and the value of Ho
• Type Ia Supernova Distances at z > 1.5 from the Hubble Space Telescope Multi-Cycle Treasury Programs: The Early Expansion Rate
• The 2M++ galaxy redshift catalogue
• Confirmation of a Star Formation Bias in Type Ia Supernova Distances and its Effect on Measurement of the Hubble Constant
• The VIMOS Public Extragalactic Redshift Survey (VIPERS). Full spectroscopic data and auxiliary information release (PDR-2)
• CfA4: Light Curves for 94 Type Ia Supernovae
• Evidence of Environmental Dependencies of Type Ia Supernovae from the Nearby Supernova Factory indicated by Local Hα
• Quantifying discordance in the 2015 Planck CMB spectrum
• Photometric Supernova Classification With Machine Learning
• Host Galaxy Properties and Hubble Residuals of Type Ia Supernovae from the Nearby Supernova Factory
• Systematic Uncertainties Associated with the Cosmological Analysis of the First Pan-STARRS1 Type Ia Supernova Sample
• Results from the Supernova Photometric Classification Challenge
• The Foundation Supernova Survey: Motivation, Design, Implementation, and First Data Release
• Photometric redshifts from evolutionary synthesis with PEGASE: the code ZPEG and the z=0 age constraint
• Photometric SN Ia Candidates from the Three-Year SDSS-II SN Survey Data
• The reddening law of Type Ia Supernovae: separating intrinsic variability from dust using equivalent widths
• Supercal: Cross-Calibration of Multiple Photometric Systems to Improve Cosmological Measurements with Type Ia Supernovae
• A blinded determination of $H_0$ from low-redshift Type Ia supernovae, calibrated by Cepheid variables
• Ages of Type Ia Supernovae Over Cosmic Time
• The Host Galaxies of Type Ia Supernovae Discovered by the Palomar Transient Factory
• Improved Photometric Calibration of the SNLS and the SDSS Supernova Surveys
• Cosmology with Photometrically-Classified Type Ia Supernovae from the SDSS-II Supernova Survey
• Measuring Type Ia Supernova Populations of Stretch and Color and Predicting Distance Biases
• UNITY: Confronting Supernova Cosmology's Statistical and Systematic Uncertainties in a Unified Bayesian Framework
• Constraining dark matter halo properties using lensed SNLS supernovae
• Bayesian Estimation Applied to Multiple Species: Towards cosmology with a million supernovae
• Planck 2015 results. XII. Full Focal Plane simulations
• Cosmological Parameter Uncertainties from SALT-II Type Ia Supernova Light Curve Models
• Reconsidering the Effects of Local Star Formation On Type Ia Supernova Cosmology
• Measuring the Properties of Dark Energy with Photometrically Classified Pan-STARRS Supernovae. I. Systematic Uncertainty from Core-Collapse Supernova Contamination
• A test of Gaia Data Release 1 parallaxes: implications for the local distance scale
• Photometric Supernova Cosmology with BEAMS and SDSS-II
• STACCATO: A Novel Solution to Supernova Photometric Classification with Biased Training Sets
• The influence of Host Galaxies in Type Ia Supernova Cosmology
• Classifying Supernovae Using Only Galaxy Data
• Hi-C Observations of Sunspot Penumbral Bright Dots
• How SN Ia host-galaxy properties affect cosmological parameters
• SDSS-II Supernova Survey: An Analysis of the Largest Sample of Type Ia Supernovae and Correlations with Host-Galaxy Spectral Properties
• Towards a Network of Faint DA White Dwarfs as High-Precision Spectrophotometric Standards
• ANTARES: Progress towards building a `Broker' of time-domain alerts
• Extending BEAMS to incorporate correlated systematic uncertainties
• Sampling the Probability Distribution of Type Ia Supernova Lightcurve Parameters in Cosmological Analysis
• An Improved Photometric Calibration of the Sloan Digital Sky Survey Imaging Data

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• Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics Beyond LambdaCDM
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• Limits on stellar-mass compact objects as dark matter from gravitational lensing of type Ia supernovae
• Revisiting a negative cosmological constant from low-redshift data
• SuperNNova: an open-source framework for Bayesian, Neural Network based supernova classification
• It's Dust: Solving the Mysteries of the Intrinsic Scatter and Host-Galaxy Dependence of Standardized Type Ia Supernova Brightnesses
• The Pantheon+ Analysis: SuperCal-Fragilistic Cross Calibration, Retrained SALT2 Light Curve Model, and Calibration Systematic Uncertainty
• The Foundation Supernova Survey: Motivation, Design, Implementation, and First Data Release
• First Cosmology Results Using Type Ia Supernovae From the Dark Energy Survey: Analysis, Systematic Uncertainties, and Validation
• Should Type Ia Supernova Distances be Corrected for their Local Environments?
• K2 Observations of SN 2018oh Reveal a Two-Component Rising Light Curve for a Type Ia Supernova
• The Young Supernova Experiment: Survey Goals, Overview, and Operations
• First Cosmology Results using Type Ia Supernovae from the Dark Energy Survey: The Effect of Host Galaxy Properties on Supernova Luminosity
• The Foundation Supernova Survey: Measuring Cosmological Parameters with Supernovae from a Single Telescope
• First Cosmology Results using Type Ia Supernova from the Dark Energy Survey: Simulations to Correct Supernova Distance Biases
• SuperRAENN: A Semi-supervised Supernova Photometric Classification Pipeline Trained on Pan-STARRS1 Medium Deep Survey Supernovae
• The LSST DESC DC2 Simulated Sky Survey
• Enabling real-time multi-messenger astrophysics discoveries with deep learning
• The Dark Matter equation of state through cosmic history
• Spectrophotometric templates for core collapse supernovae and their application in simulations of time-domain surveys
• Supernova Photometric Classification Pipelines Trained on Spectroscopically Classified Supernovae from the Pan-STARRS1 Medium-Deep Survey
• Dark degeneracy I: Dynamical or interacting dark energy?
• Cosmological Results from the RAISIN Survey: Using Type Ia Supernovae in the Near Infrared as a Novel Path to Measure the Dark Energy Equation of State
• New Roads to the Small-Scale Universe: Measurements of the Clustering of Matter with the High-Redshift UV Galaxy Luminosity Function
• Extending Supernova Spectral Templates for Next-Generation Space Telescope Observations
• Improving Galaxy Clustering Measurements with Deep Learning: analysis of the DECaLS DR7 data
• Gaia GraL: Gaia DR2 Gravitational Lens Systems. III. A systematic blind search for new lensed systems
• Investigating the Diversity of Type Ia Supernova Spectra with the Open-Source Relational Database Kaepora
• The Young Supernova Experiment Data Release 1 (YSE DR1): Light Curves and Photometric Classification of 1975 Supernovae
• GHOST: Using Only Host Galaxy Information to Accurately Associate and Distinguish Supernovae
• A Revised SALT2 Surface for Fitting Type Ia Supernova Light Curves
• Type Ia Supernovae are Excellent Standard Candles in the Near-Infrared
• The Dark Energy Survey Supernova Program: Modelling selection efficiency and observed core collapse supernova contamination
• Berkeley Supernova Ia Program: Data Release of 637 Spectra from 247 Type Ia Supernovae
• GALLUMI: A Galaxy Luminosity Function Pipeline for Cosmology and Astrophysics
• Nebular Spectroscopy of Kepler's Brightest Supernova
• Trans-Neptunian objects found in the first four years of the Dark Energy Survey
• The Dark Energy Survey 5-year photometrically identified Type Ia Supernovae
• Constraints on dark matter to dark radiation conversion in the late universe with DES-Y1 and external data
• ParSNIP: Generative Models of Transient Light Curves with Physics-Enabled Deep Learning
• Fast full N-body simulations of generic modified gravity: conformal coupling models
• SN 2013aa and SN 2017cbv: Two Sibling Type Ia Supernovae in the spiral galaxy NGC 5643
• SNIa-Cosmology Analysis Results from Simulated LSST Images: from Difference Imaging to Constraints on Dark Energy
• SALT2 Versus SALT3: Updated Model Surfaces and Their Impacts on Type Ia Supernova Cosmology
• Tsallis holographic dark energy in Fractal Universe
• Testing the anisotropy of cosmic acceleration from Pantheon supernovae sample
• Effects of Supernova Redshift Uncertainties on the Determination of Cosmological Parameters
• Fast full $N$-body simulations of generic modified gravity: derivative coupling models
• The SNAD Viewer: Everything You Want to Know about Your Favorite ZTF Object
• Binning is Sinning (Supernova Version): The Impact of Self-Calibration in Cosmological Analyses with Type Ia Supernovae
• Model Independent Expansion History from Supernovae: Cosmology versus Systematics
• How sound are our ultra-light axion approximations?
• Using Host Galaxy Photometric Redshifts to Improve Cosmological Constraints with Type Ia Supernova in the LSST Era
• Supernova Siblings: Assessing the Consistency of Properties of Type Ia Supernovae that Share the Same Parent Galaxies
• Peculiar motion of Solar system from the Hubble diagram of supernovae Ia and its implications for cosmology
• Significant Luminosity Differences of Two Twin Type Ia Supernovae
• The Dark Energy Survey Supernova Program: Cosmological biases from supernova photometric classification
• Photometric Classification of 2315 Pan-STARRS1 Supernovae with Superphot
• A Possible Distance Bias for Type Ia Supernovae with Different Ejecta Velocities
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• Using Rest-Frame Optical and NIR Data from the RAISIN Survey to Explore the Redshift Evolution of Dust Laws in SN Ia Host Galaxies
• Dynamical description of a quintom cosmological model nonminimally coupled with gravity
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• Environmental Dependence of Type Ia Supernovae in Low-Redshift Galaxy Clusters
• A Precise Photometric Ratio via Laser Excitation of the Sodium Layer II: Two-photon Excitation Using Lasers Detuned from 589.16 nm and 819.71 nm Resonances
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• A Precise Photometric Ratio via Laser Excitation of the Sodium Layer I: One-photon Excitation Using 342.78 nm Light
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• On the cosmological performance of photometrically classified supernovae with machine learning
• A study of Si II and S II features in spectra of Type Ia supernova
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