Related papers: SNLS -- the Supernova Legacy Survey

Rates and delay times of type Ia supernovae in the Dark Energy Survey

We use a sample of 809 photometrically classified type Ia supernovae (SNe Ia) discovered by the Dark Energy Survey (DES) along with 40415 field galaxies to calculate the rate of SNe Ia per galaxy in the redshift range $0.2 < z <0.6$. We…

Astrophysics of Galaxies · Physics 2021-07-14 P. Wiseman , M. Sullivan , M. Smith , C. Frohmaier , M. Vincenzi , O. Graur , B. Popovic , P. Armstrong , D. Brout , T. M. Davis , L. Galbany , S. R. Hinton , L. Kelsey , R. Kessler , C. Lidman , A. Möller , R. C. Nichol , B. Rose , D. Scolnic , M. Toy , Z. Zontou , J. Asorey , D. Carollo , K. Glazebrook , G. F. Lewis , B. E. Tucker , T. M. C. Abbott , M. Aguena , S. Allam , F. Andrade-Oliveira , J. Annis , D. Bacon , E. Bertin , D. Brooks , E. Buckley-Geer , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , M. Costanzi , L. N. da Costa , M. E. S. Pereira , S. Desai , H. T. Diehl , P. Doel , S. Everett , I. Ferrero , B. Flaugher , P. Fosalba , J. Frieman , J. García-Bellido , E. Gaztanaga , T. Giannantonio , D. Gruen , R. A. Gruendl , J. Gschwend , G. Gutierrez , D. L. Hollowood , K. Honscheid , B. Hoyle , D. J. James , E. Krause , K. Kuehn , N. Kuropatkin , M. A. G. Maia , J. L. Marshall , P. Martini , F. Menanteau , R. Miquel , R. Morgan , R. L. C. Ogando , A. Palmese , F. Paz-Chinchón , D. Petravick , A. Pieres , A. A. Plazas Malagón , A. K. Romer , E. Sanchez , V. Scarpine , M. Schubnell , S. Serrano , I. Sevilla-Noarbe , M. Soares-Santos , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , C. To , T. N. Varga , A. R. Walker

LensWatch. II. Improved Photometry and Time-delay Constraints on the Strongly Lensed Type Ia Supernova 2022qmx ("SN Zwicky") with HST Template Observations

Strongly lensed supernovae (SNe) are a rare class of transient that can offer tight cosmological constraints that are complementary to methods from other astronomical events. We present a follow-up study of one recently-discovered strongly…

High Energy Astrophysical Phenomena · Physics 2025-03-12 Conor Larison , Justin D. R. Pierel , Max J. B. Newman , Saurabh W. Jha , Daniel Gilman , Erin E. Hayes , Aadya Agrawal , Nikki Arendse , Simon Birrer , Mateusz Bronikowski , John M. Della Costa , David A. Coulter , Frédéric Courbin , Sukanya Chakrabarti , Jose M. Diego , Kyle A. Dalrymple , Suhail Dhawan , Ariel Goobar , Christa Gall , Jens Hjorth , Xiaosheng Huang , Shude Mao , Rui Marques-Chaves , Paolo A. Mazzali , Anupreeta More , Leonidas A. Moustakas , Ismael Pérez-Fournon , Tanja Petrushevska , Frédérick Poidevin , Armin Rest , Anowar J. Shajib , Raphael Shirley , William Sheu , Louis-Gregory Strolger , Sherry H. Suyu , Tommaso Treu , Yossef Zenati

Photometric selection of Type Ia supernovae in the Supernova Legacy Survey

We present a sample of 485 photometrically identified Type Ia supernova candidates mined from the first three years of data of the CFHT SuperNova Legacy Survey (SNLS). The images were submitted to a deferred processing independent of the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 G. Bazin , V. Ruhlmann-Kleider , N. Palanque-Delabrouille , J. Rich , E. Aubourg , P. Astier , C. Balland , S. Basa , R. G. Carlberg , A. Conley , D. Fouchez , J. Guy , D. Hardin , I. M. Hook , D. A. Howell , R. Pain , K. Perrett , C. J. Pritchet , N. Regnault , M. Sullivan , N. Fourmanoit , S. Gonzalez-Gaitan , C. Lidman , S. Perlmutter , P. Ripoche , E. S. Walker

Evidence for Cosmic Acceleration is Robust to Observed Correlations Between Type Ia Supernova Luminosity and Stellar Age

Type Ia Supernovae (SNe Ia) are powerful standardizable candles for constraining cosmological models and provided the first evidence of the accelerated expansion of the universe. Their precision derives from empirical correlations, now…

Cosmology and Nongalactic Astrophysics · Physics 2020-06-17 B. M. Rose , D. Rubin , A. Cikota , S. E. Deustua , S. Dixon , A. Fruchter , D. O. Jones , A. G. Riess , D. M. Scolnic

Evidence from Type Ia Supernovae for an Accelerating Universe and Dark Energy

I review the use of Type Ia supernovae (SNe Ia) for cosmological distance determinations. Low-redshift SNe Ia (z <~ 0.1) demonstrate that the Hubble expansion is linear, that H_0 = 65 +/- 2 (statistical) km/s/Mpc, and that the properties of…

Astrophysics · Physics 2007-05-23 Alexei V. Filippenko

Peculiar velocity cosmology with type Ia supernovae

Type Ia Supernovae have yet again the opportunity to revolutionize the field of cosmology as the new generation of surveys are acquiring thousands of nearby SNeIa opening a new era in cosmology: the direct measurement of the growth of…

Cosmology and Nongalactic Astrophysics · Physics 2020-01-27 R. Graziani , M. Rigault , N. Regnault , Ph. Gris , A. Möller , P. Antilogus , P. Astier , M. Betoule , S. Bongard , M. Briday , J. Cohen-Tanugi , Y. Copin , H. M. Courtois , D. Fouchez , E. Gangler , D. Guinet , A. J. Hawken , Y. -L. Kim , P. -F. Léget , J. Neveu , P. Ntelis , Ph. Rosnet , E. Nuss

The Accelerating Universe and Dark Energy: Evidence from Type Ia Supernovae

The measured luminosity distances of Type Ia supernovae (SNe Ia) as a function of redshift have shown that the expansion of the Universe is currently accelerating, probably due to the presence of repulsive dark energy such as Einstein's…

Astrophysics · Physics 2017-08-23 A. V. Filippenko

SNLS Spectroscopy: Testing for Evolution in Type Ia Supernovae

Aims: We present a quantitative study of a new data set of high redshift Type Ia supernovae spectra, observed at the Gemini telescopes during the first 34 months of the Supernova Legacy Survey. During this time 123 supernovae candidates…

Astrophysics · Physics 2009-11-13 T. J. Bronder , I. M. Hook , P. Astier , D. Balam , C. Balland , S. Basa , R. G. Carlberg , A. Conley , D. Fouchez , J. Guy , D. A. Howell , J. D. Neill , R. Pain , K. Perrett , C. J. Pritchet , N. Regnault , M. Sullivan , S. Baumont , S. Fabbro , M. Filliol , S. Perlmutter , P. Ripoche

Supernovae in Low-Redshift Galaxy Clusters: the Type-Ia Supernova Rate

Supernova (SN) rates are a potentially powerful diagnostic of star formation history (SFH), metal enrichment, and SN physics, particularly in galaxy clusters with their deep, metal-retaining potentials, and simple SFH. However, a…

Astrophysics · Physics 2011-02-11 Keren Sharon , Avishay Gal-Yam , Dan Maoz , Alexei V. Filippenko , Puragra GuhaThakurta , .

Supernova Constraints and Systematic Uncertainties from the First 3 Years of the Supernova Legacy Survey

We combine high redshift Type Ia supernovae from the first 3 years of the Supernova Legacy Survey (SNLS) with other supernova (SN) samples, primarily at lower redshifts, to form a high-quality joint sample of 472 SNe (123 low-$z$, 93 SDSS,…

Cosmology and Nongalactic Astrophysics · Physics 2011-04-11 A. Conley , J. Guy , M. Sullivan , 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 , M. J. Hudson , E. Hsiao , T. Kronborg , C. Lidman , A. M. Mourao , J. D. Neill , S. Perlmutter , P. Ripoche , N. Suzuki , E. S. Walker

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. (2010) and Conley et al. (2011). We use the 472 SNe Ia in this sample, accounting for recently…

Cosmology and Nongalactic Astrophysics · Physics 2011-08-11 M. Sullivan , J. Guy , 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 , M. J. Hudson , E. Hsiao , T. Kronborg , C. Lidmam , A. M. Mourao , J. D. Neill , S. Perlmutter , P. Ripoche , N. Suzuki , E. S. Walker

Discovery of a Supernova Explosion at Half the Age of the Universe and its Cosmological Implications

The ultimate fate of the universe, infinite expansion or a big crunch, can be determined by measuring the redshifts, apparent brightnesses, and intrinsic luminosities of very distant supernovae. Recent developments have provided tools that…

Astrophysics · Physics 2014-10-13 S. Perlmutter , G. Aldering , M. Della Valle , S. Deustua , R. S. Ellis , S. Fabbro , A. Fruchter , G. Goldhaber , A. Goobar , D. E. Groom , I. M. Hook , A. G. Kim , M. Y. Kim , R. A. Knop , C. Lidman , R. G. McMahon , Peter Nugent , R. Pain , N. Panagia , C. R. Pennypacker , P. Ruiz-Lapuente , B. Schaefer , N. Walton

Supernovae in the Subaru Deep Field: the rate and delay-time distribution of type Ia supernovae out to redshift 2

The type Ia supernova (SN Ia) rate, when compared to the cosmic star formation history (SFH), can be used to derive the delay-time distribution (DTD) of SNe Ia, which can distinguish among progenitor models. We present the results of a SN…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Or Graur , Dovi Poznanski , Dan Maoz , Naoki Yasuda , Tomonori Totani , Masataka Fukugita , Alexei V. Filippenko , Ryan J. Foley , Jeffrey M. Silverman , Avishay Gal-Yam , Assaf Horesh , Buell T. Jannuzi

The Dark Energy Survey 5-year photometrically identified Type Ia Supernovae

As part of the cosmology analysis using Type Ia Supernovae (SN Ia) in the Dark Energy Survey (DES), we present photometrically identified SN Ia samples using multi-band light-curves and host galaxy redshifts. For this analysis, we use the…

Cosmology and Nongalactic Astrophysics · Physics 2022-07-21 A. Möller , M. Smith , M. Sako , M. Sullivan , M. Vincenzi , P. Wiseman , P. Armstrong , J. Asorey , D. Brout , D. Carollo , T. M. Davis , C. Frohmaier , L. Galbany , K. Glazebrook , L. Kelsey , R. Kessler , G. F. Lewis , C. Lidman , U. Malik , R. C. Nichol , D. Scolnic , B. E. Tucker , T. M. C. Abbott , M. Aguena , S. Allam , J. Annis , E. Bertin , S. Bocquet , D. Brooks , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , C. Conselice , M. Costanzi , M. Crocce , L. N. da Costa , J. De Vicente , S. Desai , H. T. Diehl , P. Doel , S. Everett , I. Ferrero , D. A. Finley , B. Flaugher , D. Friedel , J. Frieman , J. García-Bellido , D. W. Gerdes , D. Gruen , R. A. Gruendl , J. Gschwend , G. Gutierrez , K. Herner , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. J. James , K. Kuehn , N. Kuropatkin , O. Lahav , M. March , J. L. Marshall , F. Menanteau , R. Miquel , R. Morgan , A. Palmese , F. Paz-Chinchón , A. Pieres , A. A. Plazas Malagón , A. K. Romer , A. Roodman , E. Sanchez , V. Scarpine , M. Schubnell , S. Serrano , I. Sevilla-Noarbe , E. Suchyta , G. Tarle , D. Thomas , C. To , T. N. Varga

Observations of Type Ia Supernovae, and Challenges for Cosmology

Observations of Type Ia supernovae (SNe Ia) reveal correlations between their luminosities and light-curve shapes, and between their spectral sequence and photometric sequence. Assuming SNe Ia do not evolve at different redshifts, the…

Astrophysics · Physics 2007-05-23 Weidong Li , Alexei V. Filippenko

The Dark Energy Survey: Cosmology Results With ~1500 New High-redshift Type Ia Supernovae Using The Full 5-year Dataset

We present cosmological constraints from the sample of Type Ia supernovae (SN Ia) discovered during the full five years of the Dark Energy Survey (DES) Supernova Program. In contrast to most previous cosmological samples, in which SN are…

Cosmology and Nongalactic Astrophysics · Physics 2025-07-22 DES Collaboration , T. M. C. Abbott , M. Acevedo , M. Aguena , A. Alarcon , S. Allam , O. Alves , A. Amon , F. Andrade-Oliveira , J. Annis , P. Armstrong , J. Asorey , S. Avila , D. Bacon , B. A. Bassett , K. Bechtol , P. H. Bernardinelli , G. M. Bernstein , E. Bertin , J. Blazek , S. Bocquet , D. Brooks , D. Brout , E. Buckley-Geer , D. L. Burke , H. Camacho , R. Camilleri , A. Campos , A. Carnero Rosell , D. Carollo , A. Carr , J. Carretero , F. J. Castander , R. Cawthon , C. Chang , R. Chen , A. Choi , C. Conselice , M. Costanzi , L. N. da Costa , M. Crocce , T. M. Davis , D. L. DePoy , S. Desai , H. T. Diehl , M. Dixon , S. Dodelson , P. Doel , C. Doux , A. Drlica-Wagner , J. Elvin-Poole , S. Everett , I. Ferrero , A. Ferté , B. Flaugher , R. J. Foley , P. Fosalba , D. Friedel , J. Frieman , C. Frohmaier , L. Galbany , J. García-Bellido , M. Gatti , E. Gaztanaga , G. Giannini , K. Glazebrook , O. Graur , D. Gruen , R. A. Gruendl , G. Gutierrez , W. G. Hartley , K. Herner , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. Huterer , B. Jain , D. J. James , N. Jeffrey , E. Kasai , L. Kelsey , S. Kent , R. Kessler , A. G. Kim , R. P. Kirshner , E. Kovacs , K. Kuehn , O. Lahav , J. Lee , S. Lee , G. F. Lewis , T. S. Li , C. Lidman , H. Lin , U. Malik , J. L. Marshall , P. Martini , J. Mena-Fernández , F. Menanteau , R. Miquel , J. J. Mohr , J. Mould , J. Muir , A. Möller , E. Neilsen , R. C. Nichol , P. Nugent , R. L. C. Ogando , A. Palmese , Y. -C. Pan , M. Paterno , W. J. Percival , M. E. S. Pereira , A. Pieres , A. A. Plazas Malagón , B. Popovic , A. Porredon , J. Prat , H. Qu , M. Raveri , M. Rodríguez-Monroy , A. K. Romer , A. Roodman , B. Rose , M. Sako , E. Sanchez , D. Sanchez Cid , M. Schubnell , D. Scolnic , I. Sevilla-Noarbe , P. Shah , J. Allyn. Smith , M. Smith , M. Soares-Santos , E. Suchyta , M. Sullivan , N. Suntzeff , M. E. C. Swanson , B. O. Sánchez , G. Tarle , G. Taylor , D. Thomas , C. To , M. Toy , M. A. Troxel , B. E. Tucker , D. L. Tucker , S. A. Uddin , M. Vincenzi , A. R. Walker , N. Weaverdyck , R. H. Wechsler , J. Weller , W. Wester , P. Wiseman , M. Yamamoto , F. Yuan , B. Zhang , Y. Zhang

The Fall 2004 SDSS Supernova Survey

In preparation for the Supernova Survey of the Sloan Digital Sky Survey (SDSS) II, a proposed 3-year extension to the SDSS, we have conducted an early engineering and science run during the fall of 2004, which consisted of approximately 20…

Astrophysics · Physics 2008-11-26 Masao Sako , Roger Romani , Josh Frieman , Jen Adelman-McCarthy , Andrew Becker , Fritz DeJongh , Ben Dilday , Juan Estrada , John Hendry , Jon Holtzman , Jared Kaplan , Rick Kessler , Hubert Lampeitl , John Marriner , Gajus Miknaitis , Adam Riess , Douglas Tucker , J. Barentine , R. Blandford , H. Brewington , J. Dembicky , M. Harvanek , S. Hawley , C. Hogan , D. Johnston , S. Kahn , B. Ketzeback , S. Kleinman , J. Krzesinski , D. Lamenti , D. Long , R. McMillan , P. Newman , A. Nitta , R. Nichol , R. Scranton , E. Sheldon , S. Snedden , C. Stoughton , D. York , the SDSS Collaboration

Photometric Calibration of the Supernova Legacy Survey Fields

We present the photometric calibration of the Supernova Legacy Survey (SNLS) fields. The SNLS aims at measuring the distances to SNe Ia at (0.3<z<1) using MegaCam, the 1 deg^2 imager on the Canada-France-Hawaii Telescope (CFHT). The…

Instrumentation and Methods for Astrophysics · Physics 2015-05-14 N. Regnault , A. Conley , J. Guy , M. Sullivan , J. -C. Cuillandre , P. Astier , C. Balland , S. Basa , R. G. Carlberg , D. Fouchez , D. Hardin , I. M. Hook , D. A. Howell , R. Pain , K. Perrett , C. J. Pritchet

Towards Precision Photometric Type Ia Supernova Cosmology with Machine Learning

The revolutionary discovery of dark energy and accelerating cosmic expansion was made with just 42 type Ia supernovae (SNe Ia) in 1999. Since then, large synoptic surveys, e.g., Dark Energy Survey (DES), have observed thousands more SNe Ia…

Cosmology and Nongalactic Astrophysics · Physics 2024-06-10 Helen Qu

How to Find Gravitationally Lensed Type Ia Supernovae

Type Ia supernovae (SNe Ia) that are multiply imaged by gravitational lensing can extend the SN Ia Hubble diagram to very high redshifts $(z\gtrsim 2)$, probe potential SN Ia evolution, and deliver high-precision constraints on $H_0$, $w$,…

Instrumentation and Methods for Astrophysics · Physics 2017-01-04 Daniel A. Goldstein , Peter E. Nugent