Related papers: Characterizing the contaminating distance distribu…

A Bayesian Approach to Classifying Supernovae With Color

Upcoming large-scale ground- and space- based supernova surveys will face a challenge identifying supernova candidates largely without the use of spectroscopy. Over the past several years, a number of supernova identification schemes have…

Cosmology and Nongalactic Astrophysics · Physics 2009-09-22 Natalia Connolly , Brian Connolly

The supernova cosmology cookbook: Bayesian numerical recipes

Theoretical and observational cosmology have enjoyed a number of significant successes over the last two decades. Cosmic microwave background measurements from the Wilkinson Microwave Anisotropy Probe and Planck, together with large-scale…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-13 N. V. Karpenka

Bayesian Estimation Applied to Multiple Species: Towards cosmology with a million supernovae

Observed data is often contaminated by undiscovered interlopers, leading to biased parameter estimation. Here we present BEAMS (Bayesian Estimation Applied to Multiple Species) which significantly improves on the standard maximum likelihood…

Astrophysics · Physics 2008-11-26 Martin Kunz , Bruce A. Bassett , Renee Hlozek

Carnegie Supernova Project: Fast-Declining Type Ia Supernovae as Cosmological Distance Indicators

In this paper, the suitability of fast-declining Type Ia supernovae (SNe Ia) as cosmological standard candles is examined utilizing a Hubble Flow sample of 43 of these objects observed by the Carnegie Supernova Project (CSP). We confirm…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-18 M. M. Phillips , Syed A. Uddin , Christopher R. Burns , Nicholas B. Suntzeff , C. Ashall , E. Baron , L. Galbany , P. Hoeflich , E. Y. Hsiao , Nidia Morrell , S. E. Persson , Maximilian Stritzinger , Carlos Contreras , Wendy L. Freedman , Kevin Krisciunas , S. Kumar , J. Lu , Anthony L. Piro , M. Shahbandeh

The Dark Energy Survey Supernova Program: Cosmological Analysis and Systematic Uncertainties

We present the full Hubble diagram of photometrically-classified Type Ia supernovae (SNe Ia) from the Dark Energy Survey supernova program (DES-SN). DES-SN discovered more than 20,000 SN candidates and obtained spectroscopic redshifts of…

Cosmology and Nongalactic Astrophysics · Physics 2024-01-24 M. Vincenzi , D. Brout , P. Armstrong , B. Popovic , G. Taylor , M. Acevedo , R. Camilleri , R. Chen , T. M. Davis , S. R. Hinton , L. Kelsey , R. Kessler , J. Lee , C. Lidman , A. Möller , H. Qu , M. Sako , B. Sanchez , D. Scolnic , M. Smith , M. Sullivan , P. Wiseman , J. Asorey , B. A. Bassett , D. Carollo , A. Carr , R. J. Foley , C. Frohmaier , L. Galbany , K. Glazebrook , O. Graur , E. Kovacs , K. Kuehn , U. Malik , R. C. Nichol , B. Rose , B. E. Tucker , M. Toy , D. L. Tucker , F. Yuan , T. M. C. Abbott , M. Aguena , O. Alves , F. Andrade-Oliveira , J. Annis , D. Bacon , K. Bechtol , G. M. Bernstein , D. Brooks , D. L. Burke , A. Carnero Rosell , J. Carretero , F. J. Castander , C. Conselice , L. N. da Costa , M. E. S. Pereira , S. Desai , H. T. Diehl , P. Doel , I. Ferrero , B. Flaugher , D. Friedel , J. Frieman , J. García-Bellido , M. Gatti , G. Giannini , D. Gruen , R. A. Gruendl , D. L. Hollowood , K. Honscheid , D. Huterer , D. J. James , N. Kuropatkin , O. Lahav , S. Lee , H. Lin , J. L. Marshall , J. Mena-Fernández , F. Menanteau , R. Miquel , A. Palmese , A. Pieres , A. A. Plazas Malagón , A. Porredon , A. K. Romer , A. Roodman , E. Sanchez , D. Sanchez Cid , M. Schubnell , I. Sevilla-Noarbe , E. Suchyta , M. E. C. Swanson , G. Tarle , C. To , A. R. Walker , N. Weaverdyck

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 spectroscopically confirmed SNe Ia from…

Cosmology and Nongalactic Astrophysics · Physics 2019-05-13 T. M. C. Abbott , S. Allam , P. Andersen , C. Angus , J. Asorey , A. Avelino , S. Avila , B. A. Bassett , K. Bechtol , G. M. Bernstein , E. Bertin , D. Brooks , D. Brout , P. Brown , D. L. Burke , J. Calcino , A. Carnero Rosell , D. Carollo , M. Carrasco Kind , J. Carretero , R. Casas , F. J. Castander , R. Cawthon , P. Challis , M. Childress , A. Clocchiatti , C. E. Cunha , C. B. D'Andrea , L. N. da Costa , C. Davis , T. M. Davis , J. De Vicente , D. L. DePoy , S. Desai , H. T. Diehl , P. Doel , A. Drlica-Wagner , T. F. Eifler , A. E. Evrard , E. Fernandez , A. V. Filippenko , D. A. Finley , B. Flaugher , R. J. Foley , P. Fosalba , J. Frieman , L. Galbany , J. Garcia-Bellido , E. Gaztanaga , T. Giannantonio , K. Glazebrook , D. A. Goldstein , S. Gonzalez-Gaitan , D. Gruen , R. A. Gruendl , J. Gschwend , R. R. Gupta , G. Gutierrez , W. G. Hartley , S. R. Hinton , D. L. Hollowood , K. Honscheid , J. K. Hoormann , B. Hoyle , D. J. James , T. Jeltema , M. W. G. Johnson , M. D. Johnson , E. Kasai , S. Kent , R. Kessler , A. G. Kim , R. P. Kirshner , E. Kovacs , E. Krause , R. Kron , K. Kuehn , S. Kuhlmann , N. Kuropatkin , O. Lahav , J. Lasker , G. F. Lewis , T. S. Li , C. Lidman , M. Lima , H. Lin , E. Macaulay , M. A. G. Maia , K. S. Mandel , M. March , J. Marriner , J. L. Marshall , P. Martini , F. Menanteau , C. J. Miller , R. Miquel , V. Miranda , J. J. Mohr , E. Morganson , D. Muthukrishna , A. Möller , E. Neilsen , R. C. Nichol , B. Nord , P. Nugent , R. L. C. Ogando , A. Palmese , Y. -C. Pan , A. A. Plazas , M. Pursiainen , A. K. Romer , A. Roodman , E. Rozo , E. S. Rykoff , M. Sako , E. Sanchez , V. Scarpine , R. Schindler , M. Schubnell , D. Scolnic , S. Serrano , I. Sevilla-Noarbe , R. Sharp , M. Smith , M. Soares-Santos , F. Sobreira , N. E. Sommer , H. Spinka , E. Suchyta , M. Sullivan , E. Swann , G. Tarle , D. Thomas , R. C. Thomas , M. A. Troxel , B. E. Tucker , S. A. Uddin , A. R. Walker , W. Wester , P. Wiseman , R. C. Wolf , B. Yanny , B. Zhang , Y. Zhang

Photometric Supernova Cosmology with BEAMS and SDSS-II

Supernova cosmology without spectroscopic confirmation is an exciting new frontier which we address here with the Bayesian Estimation Applied to Multiple Species (BEAMS) algorithm and the full three years of data from the Sloan Digital Sky…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Renée Hlozek , Martin Kunz , Bruce Bassett , Mat Smith , James Newling , Melvin Varughese , Rick Kessler , Joe Bernstein , Heather Campbell , Ben Dilday , Bridget Falck , Joshua Frieman , Steve Kulhmann , Hubert Lampeitl , John Marriner , Robert C. Nichol , Adam G. Riess , Masao Sako , Donald P. Schneider

The Supernova Legacy Survey 3-year sample: Type Ia Supernovae photometric distances and cosmological constraints

We present photometric properties and distance measurements of 252 high redshift Type Ia supernovae (0.15 < z < 1.1) discovered during the first three years of the Supernova Legacy Survey (SNLS). These events were detected and their…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 J. Guy , M. Sullivan , A. Conley , N. Regnault , P. Astier , C. Balland , S. Basa , R. G. Carlberg , D. Fouchez , D. Hardin , I. M. Hook , D. A. Howell , R. Pain , N. Palanque-Delabrouille , K. M. Perrett , C. J. Pritchet , J. Rich , V. Ruhlmann-Kleider , D. Balam , S. Baumont , R. S. Ellis , S. Fabbro , H. K. Fakhouri , N. Fourmanoit , S. Gonzalez-Gaitan , M. L. Graham , E. Hsiao , T. Kronborg , C. Lidman , A. M. Mourao , S. Perlmutter , P. Ripoche , N. Suzuki , E. S. Walker

The Foundation Supernova Survey: Measuring Cosmological Parameters with Supernovae from a Single Telescope

Measurements of the dark energy equation-of-state parameter, $w$, have been limited by uncertainty in the selection effects and photometric calibration of $z<0.1$ Type Ia supernovae (SNe Ia). The Foundation Supernova Survey is designed to…

Cosmology and Nongalactic Astrophysics · Physics 2019-08-14 D. O. Jones , D. M. Scolnic , R. J. Foley , A. Rest , R. Kessler , P. M. Challis , K. C. Chambers , D. A. Coulter , K. G. Dettman , M. M. Foley , M. E. Huber , S. W. Jha , E. Johnson , C. D. Kilpatrick , R. P. Kirshner , J. Manuel , G. Narayan , Y. -C. Pan , A. G. Riess , A. S. B. Schultz , M. R. Siebert , E. Berger , R. Chornock , H. Flewelling , E. A. Magnier , S. J. Smartt , K. W. Smith , R. J. Wainscoat , C. Waters , M. Willman

The Dependence of Type Ia Supernova Luminosities on their Host Galaxies

(Abridged) Precision cosmology with Type Ia supernovae (SNe Ia) makes use of the fact that SN Ia luminosities depend on their light-curve shapes and colours. Using Supernova Legacy Survey (SNLS) and other data, we show that there is an…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 M. Sullivan , A. Conley , D. A. Howell , J. D. Neill , P. Astier , C. Balland , S. Basa , R. G. Carlberg , D. Fouchez , J. Guy , D. Hardin , I. M. Hook , R. Pain , N. Palanque-Delabrouille , K. M. Perrett , C. J. Pritchet , N. Regnault , J. Rich , V. Ruhlmann-Kleider , S. Baumont , E. Hsiao , T. Kronborg , C. Lidman , S. Perlmutter , E. S. Walker

Evidence for asymmetric distribution of circumstellar material around Type Ia Supernovae

We study the properties of low-velocity material in the line of sight towards nearby Type Ia Supernovae (SNe Ia) that have measured late phase nebular velocity shifts (v_neb), thought to be an environment-independent observable. We have…

Solar and Stellar Astrophysics · Physics 2015-06-05 Francisco Förster , Santiago González-Gaitán , Joseph Anderson , Sebastián Marchi , Claudia P. Gutiérrez , Mario Hamuy , Giuliano Pignata , Régis Cartier

Evaluating Cosmological Biases using Photometric Redshifts for Type Ia Supernova Cosmology with the Dark Energy Survey Supernova Program

Cosmological analyses with Type Ia Supernovae (SNe Ia) have traditionally been reliant on spectroscopy for both classifying the type of supernova and obtaining reliable redshifts to measure the distance-redshift relation. While obtaining a…

Cosmology and Nongalactic Astrophysics · Physics 2024-07-25 R. Chen , D. Scolnic , M. Vincenzi , E. S. Rykoff , J. Myles , R. Kessler , B. Popovic , M. Sako , M. Smith , P. Armstrong , D. Brout , T. M. Davis , L. Galbany , J. Lee , C. Lidman , A. Möller , B. O. Sánchez , M. Sullivan , H. Qu , P. Wiseman , T. M. C. Abbott , M. Aguena , S. Allam , O. Alves , F. Andrade-Oliveira , J. Annis , D. Bacon , D. Brooks , A. Carnero Rosell , J. Carretero , A. Choi , C. Conselice , L. N. da Costa , M. E. S. Pereira , H. T. Diehl , P. Doel , S. Everett , I. Ferrero , B. Flaugher , J. Frieman , J. García-Bellido , M. Gatti , E. Gaztanaga , G. Giannini , D. Gruen , R. A. Gruendl , G. Gutierrez , K. Herner , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. Huterer , D. J. James , K. Kuehn , M. Lima , J. L. Marshall , J. Mena-Fernández , F. Menanteau , R. Miquel , R. L. C. Ogando , A. Palmese , A. Pieres , A. A. Plazas Malagón , A. Roodman , S. Samuroff , E. Sanchez , D. Sanchez Cid , I. Sevilla-Noarbe , E. Suchyta , M. E. C. Swanson , G. Tarle , C. To , D. L. Tucker , V. Vikram , N. Weaverdyck , J. Weller

The Carnegie Supernova Project: First Near-Infrared Hubble Diagram to z~0.7

The Carnegie Supernova Project (CSP) is designed to measure the luminosity distance for Type Ia supernovae (SNe Ia) as a function of redshift, and to set observational constraints on the dark energy contribution to the total energy content…

Cosmology and Nongalactic Astrophysics · Physics 2011-05-25 Wendy L. Freedman , Christopher R. Burns , M. M. Phillips , Pamela Wyatt , S. E. Persson , Barry F. Madore , Carlos Contreras , Gaston Folatelli , E. Sergio Gonzalez , Mario Hamuy , Eric Hsiao , Daniel D. Kelson , Nidia Morrell , D. C. Murphy , Miguel Roth , Maximilian Stritzinger , Laura Sturch , Nick B. Suntzeff , P. Astier , C. Balland , Bruce Bassett , Luis Boldt , R. G. Carlberg , Alexander J. Conley , Joshua A. Frieman , Peter M. Garnavich , J. Guy , D. Hardin , D. Andrew Howell , Richard Kessler , Hubert Lampeitl , John Marriner , R. Pain , Kathy Perrett , N. Regnault , Adam G. Riess , Masao Sako , Donald P. Schneider , Mark Sullivan , Michael Wood-Vasey

Supernova Simulations and Strategies For the Dark Energy Survey

We present an analysis of supernova light curves simulated for the upcoming Dark Energy Survey (DES) supernova search. The simulations employ a code suite that generates and fits realistic light curves in order to obtain distance…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-19 J. P. Bernstein , R. Kessler , S. Kuhlmann , R. Biswas , E. Kovacs , G. Aldering , I. Crane , C. B. D'Andrea , D. A. Finley , J. A. Frieman , T. Hufford , M. J. Jarvis , A. G. Kim , J. Marriner , P. Mukherjee , R. C. Nichol , P. Nugent , D. Parkinson , R. R. R. Reis , M. Sako , H. Spinka , M. Sullivan

Assessment of the Systematic Uncertainties in the Cosmological Analysis of the SDSS Supernovae Photometric Sample

Improvement in the precision of measurements of cosmological parameters with Type Ia Supernovae (SNIa) is expected to come from large photometrically identified (photometric) SN samples. Here we re-analyse the SDSS photometric SN sample,…

Cosmology and Nongalactic Astrophysics · Physics 2020-03-04 Brodie Popovic , Dan Scolnic , Richard Kessler

Theoretical Clues to the Ultraviolet Diversity of Type Ia Supernovae

The effect of metallicity on the observed light of Type Ia supernovae (SNe Ia) could lead to systematic errors as the absolute magnitudes of local and distant SNe Ia are compared to measure luminosity distances and determine cosmological…

Solar and Stellar Astrophysics · Physics 2015-08-19 Peter J. Brown , E. Baron , Peter Milne , Peter W. A. Roming , Lifan Wang

Breaking the color-reddening degeneracy in type Ia supernovae

A new method to study the intrinsic color and luminosity of type Ia supernovae (SNe Ia) is presented. A metric space built using principal component analysis (PCA) on spectral series SNe Ia between -12.5 and +17.5 days from B maximum is…

Solar and Stellar Astrophysics · Physics 2016-04-27 M. Sasdelli , E. E. O. Ishida , W. Hillebrandt , C. Ashall , P. A. Mazzali , S. Prentice

Sampling the Probability Distribution of Type Ia Supernova Lightcurve Parameters in Cosmological Analysis

In order to obtain robust cosmological constraints from Type Ia supernova (SN Ia) data, we have applied Markov Chain Monte Carlo (MCMC) to SN Ia lightcurve fitting. We develop a method for sampling the resultant probability density…

Cosmology and Nongalactic Astrophysics · Physics 2016-05-19 Mi Dai , Yun Wang

The Dark Energy Bedrock All-Sky Supernova Program: Cross Calibration, Simulations, and Cosmology Forecasts

Type Ia supernovae (SNe Ia) have been essential for probing the nature of dark energy; however, most SN analyses rely on the same low-redshift sample, which may lead to shared systematics. In a companion paper (arXiv:2508.10878), we…

Cosmology and Nongalactic Astrophysics · Physics 2025-08-18 Maria Acevedo , Nora F. Sherman , Dillon Brout , Bastien Carreres , Daniel Scolnic , Brodie Popovic , Patrick Armstrong , Dingyuan Cao , Rebecca C. Chen , Alex Drlica-Wagner , Peter S. Ferguson , Christopher Lidman , Bailey Martin , Erik R. Peterson , Adam G. Riess

ZTF SN Ia DR2: Evidence of Changing Dust Distributions With Redshift Using Type Ia Supernovae

Type Ia supernova (SNIa) are excellent probes of local distance, and the increasing sample sizes of SNIa have driven an increased need to study the associated systematic uncertainties and improve the standardisation methods in preparation…

Cosmology and Nongalactic Astrophysics · Physics 2025-02-19 B. Popovic , M. Rigault , M. Smith , M. Ginolin , A. Goobar , W. D. Kenworthy , C. Ganot , F. Ruppin , G. Dimitriadis , J. Johansson , M. Amenouche , M. Aubert , C. Barjou-Delayre , U. Burgaz , B. Carreres , F. Feinstein , D. Fouchez , L. Galbany , T. de Jaeger , Y. -L. Kim , L. Lacroix , P. E. Nugent , B. Racine , D. Rosselli , P. Rosnet , J. Sollerman , D. Hale , R. Laher , T. E. Müller-Bravo , R. Reed , B. Rusholme , J. Terwel