Related papers: ZTF SN Ia DR2: Simulations and volume limited samp…

ZTF SN Ia DR2: Overview

We present the first homogeneous release of several thousand Type Ia supernovae (SNe Ia), all having spectroscopic classification, and spectroscopic redshifts for half the sample. This release, named the "DR2", contains 3628 nearby (z <…

Cosmology and Nongalactic Astrophysics · Physics 2024-12-04 Mickael Rigault , Mathew Smith , Ariel Goobar , Kate Maguire , Georgios Dimitriadis , Umut Burgaz , Suhail Dhawan , Jesper Sollerman , Nicolas Regnault , Marek Kowalski , Melissa Amenouche , Marie Aubert , Chloé Barjou-Delayre , Julian Bautista , Josh S. Bloom , Bastien Carreres , Tracy X. Chen , Yannick Copin , Maxime Deckers , Dominique Fouchez , Christoffer Fremling , Lluis Galbany , Madeleine Ginolin , Matthew Graham , Mancy M. Kasliwal , W. D'Arcy Kenworthy , Young-Lo Kim , Dylan Kuhn , Frank F. Masci , Tomas Müller-Bravo , Adam Miller , Joel Johansson , Jakob Nordin , Peter Nugent , Igor Andreoni , Eric Bellm , Marc Betoule , Mahmoud Osman , Dan Perley , Brodie Popovic , Philippe Rosnet , Damiano Rosselli , Florian Ruppin , Robert Senzel , Ben Rusholme , Tassilo Schweyer , Jacco H. Terwel , Alice Townsend , Andy Tzanidakis , Avery Wold , Josiah Purdum , Yu-Jing Qin , Benjamin Racine , Simeon Reusch , Reed Riddle , Lin Yan

The Zwicky Transient Facility Type Ia supernova survey: first data release and results

Type Ia supernovae (SNe~Ia) in the nearby Hubble flow are excellent distance indicators in cosmology. The Zwicky Transient Facility (ZTF) has observed a large sample of supernovae from an untargeted, rolling survey, reaching $20.8, 20.6,…

Cosmology and Nongalactic Astrophysics · Physics 2021-11-24 S. Dhawan , A. Goobar , M. Smith , J. Johansson , M. Rigault , J. Nordin , R. Biswas , D. Goldstein , P. Nugent , Y. -L. Kim , A. A. Miller , M. J. Graham , M. Medford , M. M. Kasliwal , S. R. Kulkarni , Dmitry A. Duev , E. Bellm , P. Rosnet , R. Riddle , J. Sollerman

ZTF SN Ia DR2: Study of Type Ia Supernova lightcurve fits

Type Ia supernova (SN Ia) cosmology relies on the estimation of lightcurve parameters to derive precision distances that leads to the estimation of cosmological parameters. The empirical SALT2 lightcurve modeling that relies on only two…

Cosmology and Nongalactic Astrophysics · Physics 2025-02-19 M. Rigault , M. Smith , N. Regnault , D. W. Kenworthy , K. Maguire , A. Goobar , G. Dimitriadis , M. Amenouche , M. Aubert , C. Barjou-Delayre , C. E. Bellm , U. Burgaz , B. Carreres , Y. Copin , M. Deckers , T. de Jaeger , S. Dhawan , F. Feinstein , D. Fouchez , L. Galbany , M. Ginolin , J. M. Graham , Y. -L. Kim , M. Kowalski , D. Kuhn , R. S. Kulkarni , E. T. Muller-Bravo , K. Nordin , M. Popovic , J. Purdum , P. Rosnet , D. Rosselli , B. Racine , F. Ruppin , J. Sollerman , H. J. Terwel , A. Townsend

ZTF SN Ia DR2: The spectral diversity of Type Ia supernovae in a volume-limited sample

More than 3000 spectroscopically confirmed Type Ia supernovae (SNe Ia) are presented in the Zwicky Transient Facility SN Ia Data Release 2 (ZTF DR2). In this paper, we detail the spectral properties of 482 SNe Ia near maximum light, up to a…

High Energy Astrophysical Phenomena · Physics 2025-08-18 U. Burgaz , K. Maguire , G. Dimitriadis , L. Harvey , R. Senzel , J. Sollerman , J. Nordin , L. Galbany , M. Rigault , M. Smith , A. Goobar , J. Johansson , P. Rosnet , M. Amenouche , M. Deckers , S. Dhawan , M. Ginolin , Y. -L. Kim , A. A. Miller , T. E. Muller-Bravo , P. E. Nugent , J. H. Terwel , R. Dekany , A. Drake , M. J. Graham , S. L. Groom , M. M. Kasliwal , S. R. Kulkarni , K. Nolan , G. Nir , R. L. Riddle , B. Rusholme , Y. Sharma

Illuminating the Local Universe: Large-Scale Structure from ZTF Type Ia Supernovae

Within the volume-limited subsample at $z<0.06$ of the Zwicky Transient Facility (ZTF) DR2 sample, we confirm a statistically significant excess of Type Ia supernovae (SNe Ia) at $z \simeq 0.02$-$0.04$, previously reported but not explained…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-15 Antoine Gilles Lordet , Ariel Goobar , Jens Jasche , Stuart McAlpine , Jesper Sollerman , Young-Lo Kim , Mickael Rigault , Madeleine Ginolin , Umut Burgaz , Eric C. Bellm , Matthew J. Graham , Joahan Castaneda Jaimes , Frank J. Masci , Josiah Purdum , Reed Riddle

ZTF SN Ia DR2: The diversity and relative rates of the thermonuclear SN population

The Zwicky Transient Facility SN Ia Data Release 2 (ZTF SN Ia DR2) contains more than 3,000 Type Ia supernovae (SNe Ia), providing the largest homogeneous low-redshift sample of SNe Ia. Having at least one spectrum per event, this data…

High Energy Astrophysical Phenomena · Physics 2025-02-19 G. Dimitriadis , U. Burgaz , M. Deckers , K. Maguire , J. Johansson , M. Smith , M. Rigault , C. Frohmaier , J. Sollerman , L. Galbany , Y. -L. Kim , C. Liu , A. A. Miller , P. E. Nugent , A. Alburai , P. Chen , S. Dhawan , M. Ginolin , A. Goobar , S. L. Groom , L. Harvey , W. D. Kenworthy , S. R. Kulkarni , K. Phan , B. Popovic , R. L. Riddle , B. Rusholme , T. E. Muller-Bravo , J. Nordin , J. H. Terwel , A. Townsend

ZTF SNe Ia DR2: Towards cosmology-grade ZTF supernova light curves using scene modeling photometry

The Zwicky Transient Facility (ZTF) is conducting a wide-field survey of the northern sky in three optical bands and the collaboration cosmology working group has released 3628 spectroscopically confirmed Type Ia supernovae (SNe Ia)…

Cosmology and Nongalactic Astrophysics · Physics 2025-09-05 L. Lacroix , N. Regnault , T. de Jaeger , M. Le Jeune , M. Betoule , J. -M. Colley , M. Bernard , M. Rigault , M. Smith , A. Goobar , K. Maguire , G. Dimitriadis , J. Nordin , J. Johansson , M. Aubert , C. Barjou , E. C. Bellm , S. Bongard , U. Burgaz , B. Carreres , D. Fouchez , F. Feinstein , L. Galbany , M. Ginolin , M. Graham , D. Kuhn , R. R. Laher , T. E. Müller-Bravo , J. Neveu , M. Osman , B. Popovic , B. Racine , P. Rosnet , D. Rosselli , R. Smith , J. Sollerman , J. H. Terwel , A. Townsend , A. Wold

On the Mechanism of Type Ia Supernovae

Type Ia supernovae (SNe Ia) are one of the major tools to determine the cosmological parameters. Utilizing them as distance indicators, it is possible to geometrically survey the universe. To this end, the intrinsic scatter in the…

Astrophysics · Physics 2007-05-23 F. K. Roepke , W. Hillebrandt , S. I. Blinnikov

ZTF SN Ia DR2: Exploring SN Ia properties in the vicinity of under-dense environments

The unprecedented statistics of detected Type Ia supernovae (SNe Ia) brought by the Zwicky Transient Facility enables us to probe the impact of the Large-Scale Structure on the properties of these objects. The goal of this paper is to…

Cosmology and Nongalactic Astrophysics · Physics 2025-02-19 M. Aubert , P. Rosnet , B. Popovic , F. Ruppin , M. Smith , M. Rigault , G. Dimitriadis , A. Goobar , J. Johansson , C. Barjou-Delayre , U. Burgaz , B. Carreres , F. Feinstein , D. Fouchez , L. Galbany , M. Ginolin , T. de Jaeger , M. M. Kasliwal , Y. -L. Kim , L. Lacroix , F. J. Masci , T. E. Müller-Bravo , B. Racine , C. Ravoux , N. Regnault , R. L. Riddle , D. Rosselli , B. Rusholme , R. Smith , J. Sollerman , J. H. Terwel , A. Townsend

ZTF SN Ia DR2: Improved SN Ia colors through expanded dimensionality with SALT3+

Type Ia supernovae (SNe Ia) are a key probe in modern cosmology, as they can be used to measure luminosity distances at gigaparsec scales. Models of their light-curves are used to project heterogeneous observed data onto a common basis for…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-14 W. D. Kenworthy , A. Goobar , D. O. Jones , J. Johansson , S. Thorp , R. Kessler , U. Burgaz , S. Dhawan , G. Dimitriadis , L. Galbany , M. Ginolin , Y. -L. Kim , K. Maguire , T. E. Müller-Bravo , P. Nugent , J. Nordin , B. Popovic , P. J. Pessi , M. Rigault , P. Rosnet , J. Sollerman , J. H. Terwel , A. Townsend , R. R. Laher , J. Purdum , D. Rosselli , B. Rusholme

ZTF SN Ia DR2 follow-up: Characterization of subluminous Type Ia supernovae in the ZTF DR2 full sample

The Zwicky Transient Facility Data Release 2 (ZTF DR2) includes a total of 3,628 Type Ia supernovae (SNe~Ia), providing the largest and most complete sample of spectroscopically confirmed SNe~Ia at low redshift to date. In this paper, we…

High Energy Astrophysical Phenomena · Physics 2025-12-25 Alaa Alburai , Lluís Galbany , Umut Burgaz , Georgios Dimitriadis , Joel Johansson , Mat Smith , Ramon Sanfeliu , Sandra Guerra , Tomás Müller-Bravo , Ariel Goobar , Suhail Dhawan , Young-Lo Kim , Jakob Nordin , Alice Townsend , Jesper Sollerman , Madeleine Ginolin , Mickael Rigault , Jacco H. Terwel , Roger Smith , Avery Wold , Tracy X. Chen , Theophile Jegou du Laz

Constraints on dark energy with the LOSS SN Ia sample

We present a cosmological analysis of the Lick Observatory Supernova Search (LOSS) Type Ia supernova (SN Ia) photometry sample introduced by Ganeshalingam et al. (2010). These SNe provide an effective anchor point to estimate cosmological…

Cosmology and Nongalactic Astrophysics · Physics 2013-07-04 Mohan Ganeshalingam , Weidong Li , Alexei V. Filippenko

First Cosmology Results using Type Ia Supernova from the Dark Energy Survey: Simulations to Correct Supernova Distance Biases

We describe catalog-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 (CfA) and the Carnegie Supernova Project…

Cosmology and Nongalactic Astrophysics · Physics 2019-05-13 R. Kessler , D. Brout , C. B. D'Andrea , T. M. Davis , S. R. Hinton , A. G. Kim , J. Lasker , C. Lidman , E. Macaulay , A. Möller , M. Sako , D. Scolnic , M. Smith , M. Sullivan , B. Zhang , P. Andersen , J. Asorey , A. Avelino , J. Calcino , D. Carollo , P. Challis , M. Childress , A. Clocchiatti , S. Crawford , A. V. Filippenko , R. J. Foley , K. Glazebrook , J. K. Hoormann , E. Kasai , R. P. Kirshner , G. F. Lewis , K. S. Mandel , M. March , E. Morganson , D. Muthukrishna , P. Nugent , Y. -C. Pan , N. E. Sommer , E. Swann , R. C. Thomas , B. E. Tucker , S. A. Uddin , T. M. C. Abbott , S. Allam , J. Annis , S. Avila , M. Banerji , K. Bechtol , E. Bertin , D. Brooks , E. Buckley-Geer , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , M. Crocce , L. N. da Costa , C. Davis , J. De Vicente , S. Desai , H. T. Diehl , P. Doel , T. F. Eifler , B. Flaugher , P. Fosalba , J. Frieman , J. Garcia-Bellido , E. Gaztanaga , D. W. Gerdes , D. Gruen , R. A. Gruendl , G. Gutierrez , W. G. Hartley , D. L. Hollowood , K. Honscheid , D. J. James , M. W. G. Johnson , M. D. Johnson , E. Krause , K. Kuehn , N. Kuropatkin , O. Lahav , T. S. Li , M. Lima , J. L. Marshall , P. Martini , F. Menanteau , C. J. Miller , R. Miquel , B. Nord , A. A. Plazas , A. Roodman , E. Sanchez , V. Scarpine , R. Schindler , M. Schubnell , S. Serrano , I. Sevilla-Noarbe , M. Soares-Santos , F. Sobreira , E. Suchyta , G. Tarle , D. Thomas , A. R. Walker , Y. Zhang

Candidate strongly lensed type Ia supernovae in the Zwicky Transient Facility archive

Gravitationally lensed type Ia supernovae (glSNe Ia) are unique astronomical tools that can be used to study cosmological parameters, distributions of dark matter, the astrophysics of the supernovae, and the intervening lensing galaxies…

High Energy Astrophysical Phenomena · Physics 2025-02-12 A. Townsend , J. Nordin , A. Sagués Carracedo , M. Kowalski , N. Arendse , S. Dhawan , A. Goobar , J. Johansson , E. Mörtsell , S. Schulze , I. Andreoni , E. Fernández , A. G. Kim , P. E. Nugent , F. Prada , M. Rigault , N. Sarin , D. Sharma , E. C. Bellm , M. W. Coughlin , R. Dekany , S. L. Groom , L. Lacroix , R. R. Laher , R. Riddle , J. Aguilar , S. Ahlen , S. Bailey , D. Brooks , T. Claybaugh , A. de la Macorra , A. Dey , B. Dey , P. Doel , K. Fanning , J. E. Forero-Romero , E. Gaztañaga , S. Gontcho A Gontcho , K. Honscheid , C. Howlett , T. Kisner , A. Kremin , A. Lambert , M. Landriau , L. Le Guillou , M. E. Levi , M. Manera , A. Meisner , R. Miquel , J. Moustakas , E. Mueller , A. D. Myers , J. Nie , N. Palanque-Delabrouille , C. Poppett , M. Rezaie , G. Rossi , E. Sanchez , D. Schlegel , M. Schubnell , H. Seo , D. Sprayberry , G. Tarlé , H. Zou

Strongly lensed type Ia supernovae as a precise late-universe probe of measuring the Hubble constant and cosmic curvature

Strongly lensed type Ia supernovae (SNe Ia) are expected to have some advantages in measuring time delays of multiple images, and so they have a great potential to be developed into a powerful late-universe cosmological probe. In this…

Cosmology and Nongalactic Astrophysics · Physics 2022-07-26 Jing-Zhao Qi , Yu Cui , Wei-Hong Hu , Jing-Fei Zhang , Jing-Lei Cui , Xin Zhang

Type Ia Supernova Distances at z > 1.5 from the Hubble Space Telescope Multi-Cycle Treasury Programs: The Early Expansion Rate

We present an analysis of 15 Type Ia supernovae (SNe Ia) at redshift z > 1 (9 at 1.5 < z < 2.3) recently discovered in the CANDELS and CLASH Multi-Cycle Treasury programs using WFC3 on the Hubble Space Telescope. We combine these SNe Ia…

Cosmology and Nongalactic Astrophysics · Physics 2018-02-14 Adam G. Riess , Steven A. Rodney , Daniel M. Scolnic , Daniel L. Shafer , Louis-Gregory Strolger , Henry C. Ferguson , Marc Postman , Or Graur , Dan Maoz , Saurabh W. Jha , Bahram Mobasher , Stefano Casertano , Brian Hayden , Alberto Molino , Jens Hjorth , Peter M. Garnavich , David O. Jones , Robert P. Kirshner , Anton M. Koekemoer , Norman A. Grogin , Gabriel Brammer , Shoubaneh Hemmati , Mark Dickinson , Peter M. Challis , Schuyler Wolff , Kelsey I. Clubb , Alexei V. Filippenko , Hooshang Nayyeri , U Vivian , David C. Koo , Sandra M. Faber , Dale Kocevski , Larry Bradley , Dan Coe

Reassessing the ZTF Volume-Limited Type Ia Supernova Sample and Its Implications for Continuous, Dust-Dependent Models of Intrinsic Scatter

The ZTF DR2 includes light curves of 3628 Type Ia supernovae (SNe Ia), making it the largest low-redshift SNe Ia sample available. One central question for analyses of SNe Ia is whether the remaining diversity of standardized luminosities…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-09 Yukei S. Murakami , Daniel Scolnic

Study of the anisotropy of cosmic expansion on ZTF type Iasupernovae simulations

The cosmological principle assumes the isotropy of the Universe at large scales. It is a foundational assumption in the $\Lambda$CDM model, which is the current standard model of cosmology. Recent tensions give legitimacy to investigating…

Cosmology and Nongalactic Astrophysics · Physics 2026-01-19 C. Barjou-Delayre , P. Rosnet , C. Ravoux , M. Aubert , M. Ginolin , R. Kebadian , M. Amenouche , J. Bautista , U. Burgaz , B. Carreres , J. Castaneda Jaimes , G. Dimitriadis , F. Feinstein , D. Fouchez , L. Galbany , C. Ganot , M. Graham , S. L. Groom , A. Goobar , J. Johansson , M. M. Kasliwal , Y-L. Kim , T. E. Müller-Bravo , B. Popovic , B. Racine , N. Regnault , N. Rehemtulla , M. Rigault , R. L. Riddle , J. Sollerman , A. Townsend , A. Trigui

Redshift-Independent Distances to Type Ia Supernovae

We describe a procedure for accurately determining luminosity distances to Type Ia supernovae (SNe Ia) without knowledge of redshift. This procedure, which may be used as an extension of any of the various distance determination methods…

Astrophysics · Physics 2009-11-10 Brian J. Barris , John L. Tonry

First Cosmology Results Using Type Ia Supernovae From the Dark Energy Survey: Analysis, Systematic Uncertainties, and Validation

We present the analysis underpinning the measurement of cosmological parameters from 207 spectroscopically classified type Ia supernovae (SNe Ia) from the first three years of the Dark Energy Survey Supernova Program (DES-SN), spanning a…

Cosmology and Nongalactic Astrophysics · Physics 2019-06-04 D. Brout , D. Scolnic , R. Kessler , C. B. D'Andrea , T. M. Davis , R. R. Gupta , S. R. Hinton , A. G. Kim , J. Lasker , C. Lidman , E. Macaulay , A. Möller , R. C. Nichol , M. Sako , M. Smith , M. Sullivan , B. Zhang , P. Andersen , J. Asorey , A. Avelino , B. A. Bassett , P. Brown , J. Calcino , D. Carollo , P. Challis , M. Childress , A. Clocchiatti , A. V. Filippenko , R. J. Foley , L. Galbany , K. Glazebrook , J. K. Hoormann , E. Kasai , R. P. Kirshner , K. Kuehn , S. Kuhlmann , G. F. Lewis , K. S. Mandel , M. March , V. Miranda , E. Morganson , D. Muthukrishna , P. Nugent , A. Palmese , Y. -C. Pan , R. Sharp , N. E. Sommer , E. Swann , R. C. Thomas , B. E. Tucker , S. A. Uddin , W. Wester , T. M. C. Abbott , S. Allam , J. Annis , S. Avila , K. Bechtol , G. M. Bernstein , E. Bertin , D. Brooks , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , C. E. Cunha , L. N. da Costa , C. Davis , J. De Vicente , D. L. DePoy , S. Desai , H. T. Diehl , P. Doel , A. Drlica-Wagner , T. F. Eifler , J. Estrada , E. Fernandez , B. Flaugher , P. Fosalba , J. Frieman , J. García-Bellido , D. Gruen , R. A. Gruendl , G. Gutierrez , W. G. Hartley , D. L. Hollowood , K. Honscheid , B. Hoyle , D. J. James , M. Jarvis , T. Jeltema , E. Krause , O. Lahav , T. S. Li , M. Lima , M. A. G. Maia , J. Marriner , J. L. Marshall , P. Martini , F. Menanteau , C. J. Miller , R. Miquel , R. L. C. Ogando , A. A. Plazas , A. K. Romer , A. Roodman , E. S. Rykoff , E. Sanchez , B. Santiago , V. Scarpine , M. Schubnell , S. Serrano , I. Sevilla-Noarbe , R. C. Smith , M. Soares-Santos , F. Sobreira , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , M. A. Troxel , D. L. Tucker , V. Vikram , A. R. Walker , Y. Zhang