SALT2: using distant supernovae to improve the use of Type Ia supernovae as distance indicators

Abstract

We present an empirical model of Type Ia supernovae spectro-photometric evolution with time. The model is built using a large data set including light-curves and spectra of both nearby and distant supernovae, the latter being observed by the SNLS collaboration. We derive the average spectral sequence of Type Ia supernovae and their main variability components including a color variation law. The model allows us to measure distance moduli in the spectral range 2500-8000 A with calculable uncertainties, including those arising from variability of spectral features. Thanks to the use of high-redshift SNe to model the rest-frame UV spectral energy distribution, we are able to derive improved distance estimates for SNe Ia in the redshift range 0.8<z<1.1. The model can also be used to improve spectroscopic identification algorithms, and derive photometric redshifts of distant Type Ia supernovae.

Accepted for publication in A&A. Data and source code available at : http://supernovae.in2p3.fr/~guy/salt/

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• Type Ia supernova Hubble diagram with near-infrared and optical observations
• Model-Independent Reconstruction of the Expansion History of the Universe from Type Ia Supernovae
• The Linearity of the Cosmic Expansion Field from 300 to 30,000 km/s and the Bulk Motion of the Local Supercluster with Respect to the CMB
• Searching for deviations from the General Relativity Theory with gas mass fraction of galaxy clusters and complementary probes
• The Dark Energy Survey Supernova Program: Cosmological biases from supernova photometric classification
• Constraining the SN Ia Host Galaxy Dust Law Distribution and Mass Step: Hierarchical BayeSN Analysis of Optical and Near-Infrared Light Curves
• Significant Luminosity Differences of Two Twin Type Ia Supernovae
• On the impact of intergalactic dust on cosmology with type Ia supernovae
• Studying the Peculiar Velocity Bulk Flow in a Sparse Survey of Type-Ia SNe
• Spectral properties of Type Ia supernovae up to z~0.3
• Observational Constraints on the Averaged Universe
• On the maximum luminosities of normal stripped-envelope supernovae -- brighter than explosion models allow
• First Results from the La Silla-QUEST Supernova Survey and the Carnegie Supernova Project
• Searching for cosmological signatures of the Einstein equivalence principle breaking
• Supernova Rates and Luminosity Functions from ASAS-SN I: 2014--2017 Type Ia SNe and Their Subtypes
• Turning noise into signal: learning from the scatter in the Hubble diagram
• Cosmological implications from the full shape of the large-scale power spectrum of the SDSS DR7 luminous red galaxies
• Characterization of Type Ia Supernova Light Curves Using Principal Component Analysis of Sparse Functional Data
• Model-independent study for a quintessence model of dark energy: Analysis and Observational constraints
• Constraining Type Ia Supernova Progenitor Scenarios with Extremely Late-time Photometry of Supernova SN 2013aa
• Supernovae evidence for foundational change to cosmological models
• Spectroscopic Studies of Type Ia Supernovae Using LSTM Neural Networks
• The Twins Embedding of Type Ia Supernovae I: The Diversity of Spectra at Maximum Light
• First Cosmology Results Using Type Ia Supernovae from the Dark Energy Survey: Effects of Chromatic Corrections to Supernova Photometry on Measurements of Cosmological Parameters
• R-band light-curve properties of Type Ia supernovae from the (intermediate) Palomar Transient Factory
• Presto-Color: A Photometric Survey Cadence for Explosive Physics & Fast Transients
• zBEAMS: A unified solution for supernova cosmology with redshift uncertainties
• SNIa Host Galaxy Properties and the Dust Extinction Distribution
• A BayeSN Distance Ladder: $H_0$ from a consistent modelling of Type Ia supernovae from the optical to the near infrared
• Extinction properties of lensing galaxies
• From Out of the Blue: Swift Links 2002es-like, 2003fg-like, and Early-Time Bump Type Ia Supernovae
• Photometric classification and redshift estimation of LSST Supernovae
• Light Curves of 213 Type Ia Supernovae from the ESSENCE Survey
• Constraining the Source of the High-velocity Ejecta in Type Ia SN 2019ein
• Comparative Analysis of SN 2012dn Optical Spectra: Days -14 to +114
• The Foundation Supernova Survey: Photospheric Velocity Correlations in Type Ia Supernovae
• Non-parametric reconstruction of dark energy and cosmic expansion from the Pantheon compilation of type Ia supernovae
• A metric space for type Ia supernova spectra
• Application of Bayesian graphs to SN Ia data analysis and compression
• Light curve studies of nearby Type Ia Supernovae with a Multi-band Stretch method
• Consistency of LCDM with Geometric and Dynamical Probes
• Sub-Chandrasekhar-mass detonations are in tension with the observed $t_0-M_{\text{Ni56}}$ relation of type Ia supernovae
• Swift UVOT Grism Observations of Nearby Type Ia Supernovae -- II. Probing the Progenitor Metallicity of SNe Ia with Ultraviolet Spectra
• Impact of the 3D source geometry on time-delay measurements of lensed type-Ia Supernovae
• Host Galaxy Mass Combined with Local Stellar Age Improve Type Ia Supernovae Distances
• A tomographic test of cosmological principle using the JLA compilation of type Ia supernovae
• A Redshift Dependent Color-Luminosity Relation in Type 1a Supernovae
• Constraining smoothness parameter and the DD relation of Dyer-Roeder equation with supernovae
• Bayesian constraints on dark matter halo properties using gravitationally-lensed supernovae
• Host Galaxy Spectra and Consequences for SN Typing From The SDSS SN Survey
• Forecast of Cosmological Constraints with Type Ia Supernovae from the Chinese Space Station Telescope
• Backreaction and FRW consistency conditions
• Cosmological foundations revisited with Pantheon+
• Cosmological acceleration
• Galaxy clusters, type Ia supernovae and the fine structure constant
• Universe opacity and Type Ia supernova dimming
• Supernovae and their host galaxies -- VI. Normal Type Ia and 91bg-like supernovae in ellipticals
• Constraining the dark energy and smoothness parameter with type Ia Supernovae and Gamma-Ray Bursts
• Search for transient optical counterparts to high-energy IceCube neutrinos with Pan-STARRS1
• ZTF SN Ia DR2: Environmental dependencies of stretch and luminosity of a volume limited sample of 1,000 Type Ia Supernovae
• Consistent extinction model for type Ia supernovae in Cepheid-based calibration galaxies and its impact on $H_0$
• Growth-rate measurement with type-Ia supernovae using ZTF survey simulations
• Principal components of dark energy with SNLS supernovae: the effects of systematic errors
• Optical and Near-Infrared Observations of the Nearby Type Ia Supernova 2017cbv
• A non-parametric test of variability of Type Ia supernovae luminosity and CDDR
• The Extinction Properties of and Distance to the Highly Reddened Type Ia Supernova SN 2012cu
• Evidence for strong progenitor age dependence of type Ia supernova luminosity standardization process
• The Dark Energy Survey Supernova Program: Cosmological Analysis and Systematic Uncertainties
• Utilizing Type Ia Supernovae in a Large, Fast, Imaging Survey to Constrain Dark Energy
• Cosmological Parameter Estimation from SN Ia data: a Model-Independent Approach
• Detection and classification of supernovae beyond z~2 redshift with the James Webb Space Telescope
• Observations of Type Ia Supernova 2014J for Nearly 900 Days and Constraints on Its Progenitor System
• Quintessence versus phantom dark energy: the arbitrating power of current and future observations
• Model-independent constraints on Type Ia supernova light-curve hyper-parameters and reconstructions of the expansion history of the Universe
• Using 1991T/1999aa-like Type Ia Supernovae as Standardizable Candles
• Observational constraints on scalar field models of dark energy with barotropic equation of state
• Anisotropy in Pantheon+ supernovae
• Constraints on a possible evolution of mass density power-law index in strong gravitational lensing from cosmological data
• Type Ia supernova parameter estimation: a comparison of two approaches using current datasets
• Constraints on the physical properties of Type Ia supernovae from photometry
• On DESI's DR2 exclusion of $\Lambda$CDM
• An Intermediate Type Ia Supernova Between Normal And Super-Chandrasekhar
• Time-Varying Dark Energy Constraints From the Latest SN Ia, BAO and SGL
• The Palomar Transient Factory Sky2Night programme
• SN 2014J at M82: I. A middle-class type Ia supernova by all spectroscopic metrics
• Early-type Host Galaxies of Type Ia Supernovae. I. Evidence for Downsizing
• The influence of host galaxy morphology on the properties of Type Ia supernovae from the JLA compilation
• Absolute Distances to Nearby Type Ia Supernovae via Light Curve Fitting Methods
• Breaking the color-reddening degeneracy in type Ia supernovae
• Supernova Siblings and their Parent Galaxies in the Zwicky Transient Facility Bright Transient Surve
• The HST See Change Program: I. Survey Design, Pipeline, and Supernova Discoveries
• Designing an Optimal LSST Deep Drilling Program for Cosmology with Type Ia Supernovae
• Identifying High Energy Neutrino Transients by Neutrino Multiplet-Triggered Followups
• Cosmological constraint on Brans-Dicke Model
• Revisiting progenitor-age dependence of type Ia supernova luminosity standardization process
• PHotometry Assisted Spectral Extraction (PHASE) and identification of SNLS supernovae
• Extending BEAMS to incorporate correlated systematic uncertainties
• Exploring the cosmological consequences of JLA supernova data with improved flux-averaging technique
• SN 2017cfd: A Normal Type Ia Supernova Discovered Very Young
• A Sample of Dust Attenuation Laws for DES Supernova Host Galaxies
• Testing the cosmic conservation of photon number with type Ia supernovae and ages of old objects
• Dependence on supernovae light-curve processing in void models
• Investigating the relationship between cosmic curvature and dark energy models with the latest supernova sample
• $\text{tdescore}$: An Accurate Photometric Classifier for Tidal Disruption Events
• The Reactor Anomaly after Daya Bay and RENO
• Supernova 2010ev: A reddened high velocity gradient type Ia supernova
• Dark energy constraints from a space-based supernova survey
• Supernovae anisotropy power spectrum
• Impacts of different SNLS3 light-curve fitters on cosmological consequences of interacting dark energy models
• On dataset tensions and signatures of new cosmological physics
• The zenithal 4-m International Liquid Mirror Telescope: a unique facility for supernova studies
• Recovering $\Lambda$CDM Model From a Cosmographic Study
• Distance Probes of Dark Energy
• Cosmological constraints from low-redshift data
• Rapidly-Declining Hostless Type Ia Supernova KSP-OT-201509b from the KMTNet Supernova Program: Transitional Nature and Constraint on ${}^{56}$Ni Distribution and Progenitor Type
• Using Rest-Frame Optical and NIR Data from the RAISIN Survey to Explore the Redshift Evolution of Dust Laws in SN Ia Host Galaxies
• The HSC-SSP Transient Survey: Implications from Early Photometry and Rise Time of Normal Type Ia Supernovae
• A search for supernova-like optical counterparts to ASKAP-localised Fast Radio Bursts
• ZTF SN Ia DR2: Study of Type Ia Supernova lightcurve fits
• The Galaxy Stellar Mass Function and Low Surface Brightness Galaxies from Core-Collapse Supernovae
• Correcting for peculiar velocities of Type Ia Supernovae in clusters of galaxies
• ZTF SN Ia DR2: The spectral diversity of Type Ia supernovae in a volume-limited sample
• TiDES: The 4MOST Time Domain Extragalactic Survey
• SNe Ia as a cosmological probe
• Improving Dark Energy Constraints with High Redshift Type Ia Supernovae from CANDELS and CLASH
• Variable Selection for Modeling the Absolute Magnitude at Maximum of Type Ia Supernovae
• Parameter Estimation with BEAMS in the presence of biases and correlations
• Implications of Two Type Ia Supernova Populations for Cosmological Measurements
• An Empirical Fitting Method for Type Ia Supernova Light Curves: A Case Study of SN 2011fe
• HAFFET: Hybrid Analytic Flux FittEr for Transients
• Type Ia Supernova Hubble Residuals and Host-Galaxy Properties
• Supernovae as probes of cosmic parameters: estimating the bias from under-dense lines of sight
• The ESO's VLT Type Ia supernova spectral set of the final two years of SNLS
• Baryonic matter perturbations in decaying vacuum cosmology
• A Probabilistic Autoencoder for Type Ia Supernovae Spectral Time Series
• The cosmic transparency measured with Type Ia supernovae: implications for intergalactic dust
• Photometric classification of HSC transients using machine learning
• Photometric Supernovae Redshift Systematics Requirements
• Environmental Dependence of Type Ia Supernovae in Low-Redshift Galaxy Clusters
• Properties of type Ia supernovae inside rich galaxy clusters
• The Simulated Catalogue of Optical Transients and Correlated Hosts (SCOTCH)
• AI-driven spatio-temporal engine for finding gravitationally lensed type Ia supernovae
• A Precision Photometric Comparison between SDSS-II and CSP Type Ia Supernova Data
• Calibration of AGN Reverberation Distance Measurements
• The Dark Energy Survey Supernova Program: Corrections on photometry due to wavelength-dependent atmospheric effects
• Constraining R${}_V$ Variation Using Highly Reddened Type Ia Supernovae from the Pantheon+ Sample
• Optical and Infrared Photometry of the Nearby SN 2017cbv
• Probing gas and dust in the tidal tail of NGC 5221 with the type Ia supernova iPTF16abc
• Projected distances to host galaxy reduce SNIa dispersion
• UV Properties of Type Ia Supernova and their Host Galaxies
• Optimising a magnitude-limited spectroscopic training sample for photometric classification of supernovae
• Standardizing Type Ia supernovae using Near Infrared rebrightening time
• On the cosmological performance of photometrically classified supernovae with machine learning
• Discriminating among cosmological models by data-driven methods
• No stable dissipative phantom scenario in the framework of a complete cosmological dynamics
• A Spectroscopic Model of the Type Ia Supernova--Host Galaxy Mass Correlation from SALT3
• SN 2015bq: A Luminous Type Ia Supernova with Early Flux Excess
• Initial Evaluation of SNEMO2 and SNEMO7 Standardization Derived From Current Light Curves of Type Ia Supernovae
• SN Ia Standardization on the Rise: Evidence for the Cosmological Importance of Pre-Maximum Measurements
• Retrospective Search for Strongly Lensed Supernovae in the DESI Legacy Imaging Surveys
• Going Forward with the Nancy Grace Roman Space Telescope Transient Survey: Validation of Precision Forward-Modeling Photometry for Undersampled Imaging
• Testing the Homogeneity of Type Ia Supernovae in the Near-Infrared for Accurate Distance Estimations
• Simulating time-varying strong lenses
• A Reliable Calibration of HII Galaxies Hubble Diagram with Cosmic Chronometers and Artificial Neural Network
• Comparison of cosmological parameter inference methods applied to supernovae lightcurves fitted with SALT2
• Type Ia Supernova Distance Modulus Bias and Dispersion From K-correction Errors: A Direct Measurement Using Lightcurve Fits to Observed Spectral Time Series
• Understanding of the properties of neural network approaches for transient light curve approximations
• Elemental gas-phase abundances of intermediate redshift type Ia supernova star-forming host galaxies
• Impact of Rubin Observatory cadence choices on supernovae photometric classification
• Lensing dispersion of supernova flux: a probe of nonlinear structure growth
• Model selection and parameter estimation using the iterative smoothing method
• Constraining the Dimensionality of SN Ia Spectral Variation with Twins
• Cosmic transparency and acceleration
• X-ray Limits on the Progenitor System of the Type Ia Supernova 2017ejb
• Searching for late-time interaction signatures in Type Ia supernovae from the Zwicky Transient Facility
• A spectroscopic look at the gravitationally lensed type Ia SN 2016geu at z=0.409
• SIDE-real: Supernova Ia Dust Extinction with truncated marginal neural ratio estimation applied to real data
• The Hubble Catalog of Variables (HCV)
• Understanding the extreme luminosity of DES14X2fna
• Observing the earliest moments of supernovae using strong gravitational lenses
• See Change: VLT spectroscopy of a sample of high-redshift Type Ia supernova host galaxies
• Light curve properties of SN 2017fgc and HV SNe Ia
• SN 2019ein: A Type Ia Supernova Likely Originated from a Sub-Chandrasekhar-Mass Explosion
• Fuzzy Supernova Templates II: Parameter Estimation
• Determining $H_0$ using a model-independent method
• Understanding Type Ia Supernova Distance Biases by Simulating Spectral Variations
• SN 2024bfu, SN 2025qe, and the early light curves of type Iax supernovae
• Photometric Data-driven Classification of Type Ia Supernovae in the Open Supernova Catalog
• Exploring Alternative Cosmologies with the LSST: Simulated Forecasts and Current Observational Constraints
• High-Precision Redshifts for Type Ia Supernovae with the Nancy Grace Roman Space Telescope P127 Prism
• Optical Cross Correlation Filters: An Economical Approach for Identifying SNe Ia and Estimating their Redshifts
• A search for gravitationally lensed supernovae within the Zwicky Transient Facility public survey
• Unbiased constraints on the clumpiness of universe from standard candles
• A targeted search for strongly lensed supernovae with the Las Cumbres Observatory
• Type Ia supernovae with and without blueshifted narrow Na I D lines - how different is their structure?
• Cosmological perturbations in the $\Lambda$CDM-like limit of a polytropic dark matter model
• Photometric type Ia supernova surveys in narrow band filters
• Cosmological constraints on galaxy cluster structure
• Investigating the dynamical models of cosmology with recent observations and upcoming gravitational-wave data
• Sampling the Probability Distribution of Type Ia Supernova Lightcurve Parameters in Cosmological Analysis
• Scalar field description of a parametric model of dark energy
• Bump Morphology of the CMAGIC Diagram
• Improved constraints on violations of the Einstein equivalence principle in the electromagnetic sector with complementary cosmic probes
• Out of One, Many: Distinguishing Time Delays from Lensed Supernovae
• Three is the magic number -- distance measurement of NGC 3147 using SN 2021hpr and its siblings
• ZTF SN Ia DR2: High-velocity components in the Si II $\lambda$6355
• LensWatch. II. Improved Photometry and Time-delay Constraints on the Strongly Lensed Type Ia Supernova 2022qmx ("SN Zwicky") with HST Template Observations
• Investigating the Possibility of a Turning Point in the Dark Energy Equation of State
• ZTF SN Ia DR2: The secondary maximum in Type Ia supernovae
• Forecasting Supernova Observations with the CSST: I. Photometric Samples
• ZTF SN Ia DR2: Properties of the low-mass host galaxies of Type Ia supernovae in a volume-limited sample
• Stellar Populations in type Ia supernova host galaxies at intermediate-high redshift: Star formation and metallicity enrichment histories
• Early-time spectroscopic modelling of the transitional Type Ia Supernova 2021rhu with TARDIS
• The Dependence of the Type Ia Supernova Host Bias on Observation or Fitting Technique
• Artificial Neural Network for Constructing Type Ia Supernovae Spectrum Evolution Model
• Gravitational birefringence and an exotic formula for redshift
• Comparing the light curves of simulated Type Ia Supernovae with observations using data-driven models
• GausSN: Bayesian Time-Delay Estimation for Strongly Lensed Supernovae
• Standardization of type Ia supernovae
• Complementary cosmological tests of RSII brane models
• Weak lensing magnification of Type Ia Supernovae from the Pantheon sample
• Hawai'i Supernova Flows: A Peculiar Velocity Survey Using Over a Thousand Supernovae in the Near-Infrared
• Cosmological inference from within the peculiar local universe
• Transient Detection and Classification
• Biases from Non-Simultaneous Regression with Correlated Covariates: A Case Study from Supernova Cosmology
• A cosmology-independent calibration of type Ia supernovae data
• The Chicago Carnegie Hubble Program: Improving the Calibration of SNe Ia with JWST Measurements of the Tip of the Red Giant Branch
• The consistency test on the cosmic evolution
• Real-Time Active Learning for optimised spectroscopic follow-up: Enhancing early SN Ia classification with the Fink broker
• The Velocity Field Olympics: Assessing velocity field reconstructions with direct distance tracers
• Testing and Combining Transient Spectral Classification Tools on 4MOST-like Blended Spectra
• BayeSN and SALT: A Comparison of Dust Inference Across SN Ia Light-curve Models with DES5YR
• [O II] as an Effective Indicator of the Dependence Between the Standardised Luminosities of Type Ia Supernovae and the Properties of their Host Galaxies
• Towards Rate Estimation for Transient Surveys I: Assessing Transient Detectability and Volume Sensitivity for iPTF
• The reconstruction of dark energy with Ridge Regression Approach
• Observational Constraints on Phantom Crossing DGP Gravity
• The Friedmann equations in deformed Hořava-Lifshitz gravity and Debye model
• Propagating Uncertainties in the SALT3 Model Training Process to Cosmological Constraints
• No evidence for local $H_0$ anisotropy from Tully--Fisher or supernova distances
• Intrinsic and extinction colour components in SNeIa and the determination of $R_V$
• Probing the independence within the dark sector in the fluid approximation
• Photometric properties of intermediate redshift Type Ia Supernovae observed by SDSS-II Supernova Survey
• An Exploration of Heterogeneity in Supernova Type Ia Samples
• Reconstructing the Cosmic Expansion History with a Monotonicity Prior
• New Constraints on Anisotropic Expansion from Supernovae Type Ia
• Neutrino physics from future weak lensing surveys
• Intrinsic color diversity of nearby type Ia supernovae
• Effect of lensing magnification on type Ia supernova cosmology
• Improving the Determination of Supernova Cosmological Redshifts by Using Galaxy Groups
• Stretch to stretch, dust to dust: lower-value local $H_0$ measurement from two-population modelling of type Ia supernovae
• A New Insight into the Classification of Type Ia Supernovae
• The snapshot distance method: estimating the distance to a Type Ia supernova from minimal observations
• Quark-Novae Ia in the Hubble diagram: Implications For Dark Energy
• A Review on Resolving the Hubble Tension via Late-Universe Physics
• Observational constraint on Dark Energy from Quantum Uncertainty
• ZTF SN Ia DR2: Improved SN Ia colors through expanded dimensionality with SALT3+
• ZTF SN Ia DR2: Exploring SN Ia properties in the vicinity of under-dense environments
• Testing Lens Models of PLCK G165.7+67.0 Using Lensed SN H0pe
• ZTF SN Ia DR2 follow-up: Exploring the origin of the Type Ia supernova host galaxy step through Si II velocities
• Testing the Constancy of Type Ia Supernova Luminosities with Gaussian Process
• El-CID: A filter for Gravitational-wave Electromagnetic Counterpart Identification
• Calibrating the effective magnitudes of type Ia supernovae with a model-independent method
• A Template-Based Approach to the Photometric Classification of SN 1991bg-like Supernovae in the SDSS-II Supernova Survey
• Machine-directed gravitational-wave counterpart discovery
• The Self-Calibrating Hubble Diagram
• Candidate strongly lensed type Ia supernovae in the Zwicky Transient Facility archive
• Two c's in a pod: Cosmology independent measurement of the Type Ia supernova colour-luminosity relation with a sibling pair
• The Case for Space: Estimating Precise Time Delays from Ground- and Space-Based Observations of Lensed Supernovae with Glimpse
• Characterising the Standardisation Properties of Type Ia Supernovae in the z band with Hierarchical Bayesian Modelling
• ZTF SN~Ia DR2: Cosmology-independent constraints on Type Ia supernova standardisation from supernova siblings
• STAR NRE: Solving supernova selection effects with set-based truncated auto-regressive neural ratio estimation
• Irreversible Thermodynamics of the Universe: Constraints from Planck Data
• Addressing type Ia supernova color variability with a linear spectral template
• Normal or transitional? The evolution and properties of two type Ia supernovae in the Virgo cluster
• Lower bounds on photometric redshift errors from Type Ia supernovae templates
• The Dark Energy Survey Supernova Program results: Type Ia Supernova brightness correlates with host galaxy dust
• Artificial Neural Network Spectral Light Curve Template for Type Ia Supernovae and its Cosmological Constraints
• Prospects of the multi-channel photometric survey telescope in the cosmological application of Type Ia supernovae
• FlowSN: Neural Simulation-Based Inference under Realistic Selection Effects applied to Supernova Cosmology
• Redshift Duality with Pantheon+SH0ES in a Planck-anchored Flat $\Lambda$CDM Framework: Implications for Hubble Tension and Observational Inference
• Testing the cosmological principle on gigaparsec scales
• $S_8$ from peculiar velocities: agreement with Planck for Tully--Fisher and supernovae, tension for the fundamental plane
• Constraints on AvERA Cosmologies from Cosmic Chronometers and Type Ia Supernovae
• SN 2021pfs: A Type Ia Supernova Likely Affected by Progenitor Metallicity, as Revealed by Comparison with Its Twin Counterpart
• An Agnostic Approach to Building Empirical Type Ia Supernova Light Curves: Evidence for Intrinsic Chromatic Flux Variation Using Nearby Supernova Factory Data
• The influence of environmental effects on Type Ia Supernovae Standardization
• Strong Carbon Features and a Red Early Color in the Underluminous Type Ia SN 2022xkq
• PISCOLA: a data-driven transient light-curve fitter
• Measuring Type Ia Supernova Distances and Redshifts From Their Multi-band Light Curves
• Training Custom Light Curve Models of SN Ia Sub-Populations Selected According to Host Galaxy Properties
• Testing the effect of progenitor's metallicity on ${}^{56}$Ni mass and constraining the progenitor scenarios in Type Ia supernovae
• Dependence of low redshift Type Ia Supernovae luminosities on host galaxies
• A Linear Relation Between the Color Stretch $s_{BV}$ and the Rising Color Slope $s_0^{\ast }(B-V)$ of Type Ia Supernovae