Supernova Siblings: Assessing the Consistency of Properties of Type Ia Supernovae that Share the Same Parent Galaxies

Abstract

While many studies have shown a correlation between properties of the light curves of Type Ia SN (SNe Ia) and properties of their host galaxies, it remains unclear what is driving these correlations. We introduce a new direct method to study these correlations by analyzing `parent' galaxies that host multiple SNe Ia 'siblings'. Here, we search the Dark Energy Survey SN sample, one of the largest samples of discovered SNe, and find 8 galaxies that hosted two likely Type Ia SNe. Comparing the light-curve properties of these SNe and recovered distances from the light curves, we find no better agreement between properties of SNe in the same galaxy as any random pair of galaxies, with the exception of the SN light-curve stretch. We show at $2.8\sigma$ significance that at least 1/2 of the intrinsic scatter of SNe Ia distance modulus residuals is not from common host properties. We also discuss the robustness with which we could make this evaluation with LSST, which will find $100\times$ more pairs of galaxies, and pave a new line of study on the consistency of Type Ia supernovae in the same parent galaxies. Finally, we argue that it is unlikely some of these SNe are actually single, lensed SN with multiple images.

arXiv commentSubmitted to ApJL. Comments welcome. Fermilab id included

References in corpus (47)

• The NumPy array: a structure for efficient numerical computation
• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• The Complete Light-curve Sample of Spectroscopically Confirmed Type Ia Supernovae from Pan-STARRS1 and Cosmological Constraints from The Combined Pantheon Sample
• 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 Dark Energy Camera
• SALT2: using distant supernovae to improve the use of Type Ia supernovae as distance indicators
• Improved Distances to Type Ia Supernovae with Multicolor Light Curve Shapes: MLCS2k2
• Nearby Supernova Rates from the Lick Observatory Supernova Search. II. The Observed Luminosity Functions and Fractions of Supernovae in a Complete Sample
• 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
• The Dependence of Type Ia Supernova Luminosities on their Host Galaxies
• Hubble Residuals of Nearby Type Ia Supernovae Are Correlated with Host Galaxy Masses
• SNANA: A Public Software Package for Supernova Analysis
• The Effect of Host Galaxies on Type Ia Supernovae in the SDSS-II Supernova Survey
• On the Source of the Dust Extinction in Type Ia Supernovae and the Discovery of Anomalously Strong Na I Absorption
• Correcting Type Ia Supernova Distances for Selection Biases and Contamination in Photometrically Identified Samples
• iPTF16geu: A multiply imaged, gravitationally lensed type Ia supernova
• The Morphology of Type Ia Supernovae Light Curves
• Evidence of Environmental Dependencies of Type Ia Supernovae from the Nearby Supernova Factory indicated by Local Hα
• The Difference Imaging Pipeline for the Transient Search in the Dark Energy Survey
• The effect of progenitor age and metallicity on luminosity and 56Ni yield in Type Ia supernovae
• The Foundation Supernova Survey: Motivation, Design, Implementation, and First Data Release
• Automated Transient Identification in the Dark Energy Survey
• The Local Perspective on the Hubble Tension: Local Structure Does Not Impact Measurement of the Hubble Constant
• Measuring Dark Energy Properties with Photometrically Classified Pan-STARRS Supernovae. II. Cosmological Parameters
• Photometric SN Ia Candidates from the Three-Year SDSS-II SN Survey Data
• Models and Simulations for the Photometric LSST Astronomical Time Series Classification Challenge (PLAsTiCC)
• Supercal: Cross-Calibration of Multiple Photometric Systems to Improve Cosmological Measurements with Type Ia Supernovae
• First Cosmology Results Using Type Ia Supernovae From the Dark Energy Survey: Analysis, Systematic Uncertainties, and Validation
• Ages of Type Ia Supernovae Over Cosmic Time
• Should Type Ia Supernova Distances be Corrected for their Local Environments?
• The SDSS-II Supernova Survey: Parameterizing the Type Ia Supernova Rate as a Function of Host Galaxy Properties
• OzDES multi-fibre spectroscopy for the Dark Energy Survey: first-year operation and results
• Host Galaxy Identification for Supernova Surveys
• OzDES multifibre spectroscopy for the Dark Energy Survey: Three year results and first data release
• The Distance to NGC 1316 (Fornax A) From Observations of Four Type Ia Supernovae
• First Cosmology Results using Type Ia Supernova from the Dark Energy Survey: Simulations to Correct Supernova Distance Biases
• Spectroscopic Properties of Star-Forming Host Galaxies and Type Ia Supernova Hubble Residuals in a Nearly Unbiased Sample
• First Cosmology Results Using Type Ia Supernovae From the Dark Energy Survey: Photometric Pipeline and Light Curve Data Release
• Testing Models of Intrinsic Brightness Variations in Type Ia Supernovae, and their Impact on Measuring Cosmological Parameters
• Evolution in the Volumetric Type Ia Supernova Rate from the Supernova Legacy Survey
• Host Galaxies of Type Ia Supernovae from the Nearby Supernova Factory
• Two transitional type~Ia supernovae located in the Fornax cluster member NGC 1404: SN 2007on and SN 2011iv
• The Fundamental Metallicity Relation Reduces Type Ia SN Hubble Residuals More Than Host Mass Alone
• On the type Ia supernovae 2007on and 2011iv: Evidence for Chandrasekhar-mass explosions at the faint end of the luminosity-width relationship
• On the multiplicity of supernovae within host galaxies

Cited by in corpus (18)

• The Pantheon+ Analysis: The Full Dataset and Light-Curve Release
• Lensed Type Ia Supernova "Encore" at z=2: The First Instance of Two Multiply-Imaged Supernovae in the Same Host Galaxy
• GHOST: Using Only Host Galaxy Information to Accurately Associate and Distinguish Supernovae
• The Dark Energy Survey 5-year photometrically identified Type Ia Supernovae
• Connecting Infrared Surface Brightness Fluctuation Distances to Type Ia Supernova Hosts: Testing the Top Rung of the Distance Ladder
• A Tale of Two Type Ia Supernovae: The fast-declining siblings SNe 2015bo and 1997cn
• Comparative Analysis of TRGBs (CATs) from Unsupervised, Multi-Halo-Field Measurements: Contrast is Key
• Supernova Siblings and their Parent Galaxies in the Zwicky Transient Facility Bright Transient Surve
• Family dispute: do Type IIP supernova siblings agree on their distance?
• Using Rest-Frame Optical and NIR Data from the RAISIN Survey to Explore the Redshift Evolution of Dust Laws in SN Ia Host Galaxies
• Constraining R${}_V$ Variation Using Highly Reddened Type Ia Supernovae from the Pantheon+ Sample
• SN 2021fxy: Mid-Ultraviolet Flux Suppression is a Common Feature of Type Ia Supernovae
• The Hubble constant from two sibling Type Ia supernovae in the nearby galaxy NGC 4414: SN 1974G and SN 2021J
• An archival search for type Ia supernova siblings
• Three is the magic number -- distance measurement of NGC 3147 using SN 2021hpr and its siblings
• ZTF SN~Ia DR2: Cosmology-independent constraints on Type Ia supernova standardisation from supernova siblings
• Two c's in a pod: Cosmology independent measurement of the Type Ia supernova colour-luminosity relation with a sibling pair
• The Dark Energy Survey Supernova Program results: Type Ia Supernova brightness correlates with host galaxy dust