First cosmology results using type Ia supernovae from the Dark Energy Survey: the effect of host galaxy properties on supernova luminosity

@article{Smith2020FirstCR,
  title={First cosmology results using type Ia supernovae from the Dark Energy Survey: the effect of host galaxy properties on supernova luminosity},
  author={M. Smith and Mark Sullivan and Philip Wiseman and Richard Kessler and Dan Scolnic and Dillon Brout and Chris D'Andrea and Tamara M. Davis and Ryan J. Foley and Chris Frohmaier and Llu{\'i}s Galbany and R. Gupta and Claudia P. Guti'errez and Samuel R. Hinton and L Kelsey and Christopher E. Lidman and E Macaulay and Anais Moller and Robert Nichol and Peter E. Nugent and Antonella Palmese and Miika Pursiainen and Masao Sako and R. C. Thomas and Brad E. Tucker and Daniela Carollo and Geraint F. Lewis and Natalia E. Sommer and Timothy M. C. Abbott and Michel Aguena and Sahar Allam and Santiago {\'A}vila and Emmanuel Bertin and S. Bhargava and David Brooks and Elizabeth Buckley-Geer and David L. Burke and Aurelio Carnero Rosell and Matias Carrasco Kind and M. Costanzi and Luiz Nicolaci da Costa and Juan de Vicente and Shantanu Desai and H. Thomas Diehl and Peter Doel and T. F. Eifler and S. Everett and Brenna L. Flaugher and Pablo Fosalba and Joshua A. Frieman and Juan Garc'ia-Bellido and Enrique Gazta{\~n}aga and Karl Glazebrook and Daniel Gruen and Robert A. Gruendl and Julia Gschwend and Gaston R. Guti{\'e}rrez and William G. Hartley and Devon L. Hollowood and Klaus Honscheid and David J. James and E. Krause and Kyler W. Kuehn and Nikolay Kuropatkin and Marcos Lima and Niall MacCrann and Marcio A. G. Maia and Jennifer L. Marshall and Paul Martini and Peter Melchior and Felipe Menanteau and Ramon Miquel and F. Paz-Chinch'on and Andreas Alejandro Plazas and A. K. Romer and Aaron Roodman and Eli S. Rykoff and Eusebio S{\'a}nchez and Victor E. Scarpine and Michael S. Schubnell and Santiago Serrano and Ignacio Sevilla-Noarbe and Eric Suchyta and Mollye E. C. Swanson and Gregory G. Tarl{\'e} and D. Thomas and Douglas L. Tucker and T. N. Varga and Act Collaboration},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2020}
}
We present improved photometric measurements for the host galaxies of 206 spectroscopically confirmed type Ia supernovae discovered by the Dark Energy Survey Supernova Program (DES-SN) and used in the first DES-SN cosmological analysis. For the DES-SN sample, when considering a 5D (z, x1, c, α, β) bias correction, we find evidence of a Hubble residual ‘mass step’, where SNe Ia in high-mass galaxies (>1010M⊙) are intrinsically more luminous (after correction) than their low-mass counterparts… 
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The Foundation Supernova Survey: Photospheric Velocity Correlations in Type Ia Supernovae
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Understanding Type Ia Supernova Distance Biases by Simulating Spectral Variations
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References

SHOWING 1-10 OF 90 REFERENCES
First Cosmology Results using Type Ia Supernovae from the Dark Energy Survey: Constraints on Cosmological Parameters
We present the first cosmological parameter constraints using measurements of type Ia supernovae (SNe Ia) from the Dark Energy Survey Supernova Program (DES-SN). The analysis uses a subsample of 207
First cosmology results using Type Ia supernova from the Dark Energy Survey: simulations to correct supernova distance biases
We describe catalogue-level simulations of Type Ia supernova (SN Ia) light curves in the Dark Energy Survey Supernova Program (DES-SN) and in low-redshift samples from the Center for Astrophysics
Improved Constraints on Type Ia Supernova Host Galaxy Properties using Multi-Wavelength Photometry and their Correlations with Supernova Properties
We improve estimates of the stellar mass and mass-weighted average age of Type Ia supernova (SN Ia) host galaxies by combining UV and near-IR photometry with optical photometry in our analysis. Using
First Cosmology Results Using Type Ia Supernovae From the Dark Energy Survey: Survey Overview and Supernova Spectroscopy
We present spectroscopy from the first three seasons of the Dark Energy Survey Supernova Program (DES-SN). We describe the supernova spectroscopic program in full: strategy, observations, data
First cosmology results using Type IA supernovae from the dark energy survey: effects of chromatic corrections to supernova photometry on measurements of cosmological parameters
Calibration uncertainties have been the leading systematic uncertainty in recent analyses using Type Ia supernovae (SNe Ia) to measure cosmological parameters. To improve the calibration, we
First Cosmology Results Using SNe Ia from the Dark Energy Survey: Analysis, Systematic Uncertainties, and Validation
We present the analysis underpinning the measurement of cosmological parameters from 207 spectroscopically classified SNe Ia from the first 3 years of the Dark Energy Survey Supernova Program
SNLS3: Constraints on dark energy combining the supernova legacy survey three-year data with other probes
We present observational constraints on the nature of dark energy using the Supernova Legacy Survey three-year sample (SNLS3) of Guy et al. and Conley et al. We use the 472 Type Ia supernovae (SNe
Environmental Dependence of Type Ia Supernova Luminosities from a Sample without a Local-Global Difference in Host Star Formation
It is now established that there is a dependence of the luminosity of type Ia supernovae (SNe Ia) on environment: SNe Ia in young, star-forming, metal-poor stellar populations appear fainter after
Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
We present spectral and photometric observations of 10 Type Ia supernovae (SNe Ia) in the redshift range 0.16 " z " 0.62. The luminosity distances of these objects are determined by methods that
Dependence of Type Ia supernova luminosities on their local environment
We present a fully consistent catalog of local and global properties of host galaxies of 882 Type Ia supernovæ (SNIa) that were selected based on their light-curve properties, spanning the redshift
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