The dependency of Type Ia Supernova parameters on host galaxy morphology for the Pantheon cosmological sample

Abstract

Type Ia Supernovae (SNe Ia) are widely used to measure distances in the Universe. Despite the recent progress achieved in SN Ia standardisation, the Hubble diagram still shows some remaining intrinsic dispersion. The remaining scatter in supernova luminosity could be due to the environmental effects that are not yet accounted for by the current standardisation methods. In this work, we compare the local and global colour $(U-V)$, the local star formation rate, and the host stellar mass to the host galaxy morphology. The observed trends suggest that the host galaxy morphology is a good parameter to characterize the SN Ia environment. Therefore, we study the influence of host galaxy morphology on light-curve parameters of SNe Ia for the Pantheon cosmological supernova sample. We determine the Hubble morphological type of host galaxies for a sub-sample of 330 SNe Ia. We confirm that the SALT2 stretch parameter $x_1$ depends on the host morphology with the $p$-value $\sim 10^{-14}$. The supernovae with lower stretch value are hosted mainly by elliptical and lenticular galaxies. No correlation for the SALT2 colour parameter $c$ is found. We also examine Hubble diagram residuals for supernovae hosted by the "Early-type" and "Late-type" morphological groups of galaxies. The analysis reveals that the mean distance modulus residual in early-type galaxies is smaller than the one in late-type galaxies, which means that early-type galaxies contain brighter supernovae. However, we do not observe any difference in the residual dispersion for these two morphological groups. The obtained results are in the line with other analyses showing environmental dependence of SN Ia light-curve parameters and luminosity. We confirm the importance of including a host galaxy parameter into the standardisation procedure of SNe Ia for further cosmological studies.

arXiv comment19 pages, 6 figures, 4 tables

References in corpus (66)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• The NumPy array: a structure for efficient numerical computation
• Type Ia Supernova Discoveries at z>1 From the Hubble Space Telescope: Evidence for Past Deceleration and Constraints on Dark Energy Evolution
• The Complete Light-curve Sample of Spectroscopically Confirmed Type Ia Supernovae from Pan-STARRS1 and Cosmological Constraints from The Combined Pantheon Sample
• The SIMBAD astronomical database
• Improved cosmological constraints from a joint analysis of the SDSS-II and SNLS supernova samples
• 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
• HyperLEDA. III. The catalogue of extragalactic distances
• 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
• BVRI Light Curves for 22 Type Ia Supernovae
• First-year Sloan Digital Sky Survey-II (SDSS-II) Supernova Results: Hubble Diagram and Cosmological Parameters
• Cosmicflows-2: The Data
• 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
• Rates and properties of type Ia supernovae as a function of mass and star-formation in their host galaxies
• Cosmicflows-3
• The Sloan Digital Sky Survey-II Supernova Survey: Technical Summary
• The Dependence of Type Ia Supernova Luminosities on their Host Galaxies
• Improving galaxy morphologies for SDSS with Deep Learning
• The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA Derived Quantities, Data Visualization Tools and Stellar Library
• Cosmological Constraints from Measurements of Type Ia Supernovae discovered during the first 1.5 years of the Pan-STARRS1 Survey
• On Variations in the Peak Luminosity of Type Ia Supernovae
• The Effect of Host Galaxies on Type Ia Supernovae in the SDSS-II Supernova Survey
• The Diversity of Type Ia Supernovae from Broken Symmetries
• First Cosmology Results using Type Ia Supernovae from the Dark Energy Survey: Constraints on Cosmological Parameters
• 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
• A Search for Environmental Effects on Type Ia Supernovae
• Confirmation of a Star Formation Bias in Type Ia Supernova Distances and its Effect on Measurement of the Hubble Constant
• Evidence of Environmental Dependencies of Type Ia Supernovae from the Nearby Supernova Factory indicated by Local Hα
• Host Galaxy Properties and Hubble Residuals of Type Ia Supernovae from the Nearby Supernova Factory
• Observational Predictions for Sub-Chandrasekhar Mass Explosions: Further Evidence for Multiple Progenitor Systems for Type Ia Supernovae
• Type Ia Supernova Rate Measurements to Redshift 2.5 from CANDELS : Searching for Prompt Explosions in the Early Universe
• Systematic Uncertainties Associated with the Cosmological Analysis of the First Pan-STARRS1 Type Ia Supernova Sample
• Type-Ia Supernova Rates to Redshift 2.4 from CLASH: the Cluster Lensing And Supernova survey with Hubble
• Evolution of 3-9 Mo Stars for Z=0.001 - 0.03 and Metallicity Effects on Type Ia Supernovae
• The Hubble Diagram of Type Ia Supernovae as a Function of Host Galaxy Morphology
• The Local Hosts of Type Ia Supernovae
• The SDSS-II Supernova Survey: Parameterizing the Type Ia Supernova Rate as a Function of Host Galaxy Properties
• Dependence of Type Ia supernova luminosities on their local environment
• SNe Ia host galaxy properties from Sloan Digital Sky Survey-II spectroscopy
• Host Galaxies of Type Ia Supernovae from the Nearby Supernova Factory
• Supernovae and their host galaxies. I. The SDSS DR8 database and statistics
• SNEMO: Improved Empirical Models for Type Ia Supernovae
• Aperture-free star formation rate of SDSS star-forming galaxies
• First-Year Spectroscopy for the SDSS-II Supernova Survey
• Reconsidering the Effects of Local Star Formation On Type Ia Supernova Cosmology
• Luminosity distributions of Type Ia Supernovae
• Environmental Dependence of Type Ia Supernova Luminosities from a Sample without a Local-Global Difference in Host Star Formation
• SUGAR: An improved empirical model of Type Ia Supernovae based on spectral features
• Type Ia Supernova Properties as a Function of the Distance to the Host Galaxy in the SDSS-II SN Survey
• The Hubble Space Telescope Cluster Supernova Survey: III. Correlated Properties of Type Ia Supernovae and Their Hosts at 0.9 < z < 1.46
• On the dependence of the type Ia SNe luminosities on the metallicity of their host galaxies
• Thermonuclear explosions of rapidly differentially rotating white dwarfs: Candidates for superluminous Type Ia supernovae?
• The Evolution of the Type Ia Supernova Luminosity Function
• The mechanism of Supernova Ia explosion in elliptical galaxies
• Type Ia Supernovae: Non-standard Candles of the Universe
• Supernovae and their host galaxies -- VI. Normal Type Ia and 91bg-like supernovae in ellipticals
• The influence of host galaxy morphology on the properties of Type Ia supernovae from the JLA compilation
• Properties of type Ia supernovae inside rich galaxy clusters
• Projected distances to host galaxy reduce SNIa dispersion
• `Pure' Supernovae and Accelerated Expansion of the Universe

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• ZTF SN Ia DR2: Exploring SN Ia properties in the vicinity of under-dense environments
• Diverse reddening distributions in sight lines to type Ia supernovae
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