相关论文: Photometric Calibration of the Supernova Legacy Su…

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…

天体物理仪器与方法 · 物理学 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

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…

宇宙学与河外天体物理 · 物理学 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 Supernova Legacy Survey: Measurement of Omega_M, Omega_Lambda and w from the First Year Data Set

We present distance measurements to 71 high redshift type Ia supernovae discovered during the first year of the 5-year Supernova Legacy Survey (SNLS). These events were detected and their multi-color light-curves measured using the…

天体物理学 · 物理学 2015-01-27 P. Astier , J. Guy , N. Regnault , R. Pain , E. Aubourg , D. Balam , S. Basa , R. G. Carlberg , S. Fabbro , D. Fouchez , I. M. Hook , D. A. Howell , H. Lafoux , J. D. Neill , N. Palanque-Delabrouille , K. Perrett , C. J. Pritchet , J. Rich , M. Sullivan , R. Taillet , G. Aldering , P. Antilogus , V. Arsenijevic , C. Balland , S. Baumont , J. Bronder , H. Courtois , R. S. Ellis , M. Filiol , A. C. Goncalves , A. Goobar , D. Guide , D. Hardin , V. Lusset , C. Lidman , R. McMahon , M. Mouchet , A. Mourao , S. Perlmutter , P. Ripoche , C. Tao , N. Walton

SNLS -- the Supernova Legacy Survey

Type Ia supernovae provide direct evidence for an accelerating universe, and for the existence of "dark energy" driving this expansion. The Supernova Legacy Survey (SNLS) will deliver many hundreds of SNIa detections, and well-sampled…

天体物理学 · 物理学 2007-05-23 C. J. Pritchet , SNLS Collaboration

Gemini Spectroscopy of Supernovae from SNLS: Improving High Redshift SN Selection and Classification

We present new techiques for improving the efficiency of supernova (SN) classification at high redshift using 64 candidates observed at Gemini North and South during the first year of the Supernova Legacy Survey (SNLS). The SNLS is an…

天体物理学 · 物理学 2009-11-13 D. A. Howell , M. Sullivan , K. Perrett , T. J. Bronder , I. M. Hook , P. Astier , E. Aubourg , D. Balam , S. Basa , R. G. Carlberg , S. Fabbro , D. Fouchez , J. Guy , H. Lafoux , J. D. Neill , R. Pain , N. Palanque-Delabrouille , C. J. Pritchet , N. Regnault , J. Rich , R. Taillet , R. Knop , R. G. McMahon , S. Perlmutter , N. A. Walton

The ESO/VLT 3rd year Type Ia supernova data set from the Supernova Legacy Survey

We present 139 spectra of 124 Type Ia supernovae (SNeIa) that were observed at the ESO/VLT during the first three years of the Canada-France-Hawai Telescope (CFHT) Supernova Legacy Survey (SNLS). This homogeneous data set is used to test…

宇宙学与河外天体物理 · 物理学 2015-05-14 C. Balland , S. Baumont , S. Basa , M. Mouchet , D. A. Howell , P. Astier , R. G. Carlberg , A. Conley , D. Fouchez , J. Guy , D. Hardin , I. M. Hook , R. Pain , K. Perrett , C. J. Pritchet , N. Regnault , J. Rich , M. Sullivan , P. Antilogus , V. Arsenijevic , J. Le Du , S. Fabbro , C. Lidman , A. Mourao , N. Palanque-Delabrouille , E. Pecontal , V. Ruhlmann-Kleider

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,…

宇宙学与河外天体物理 · 物理学 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

Photometric classification of type Ia supernovae in the SuperNova Legacy Survey with supervised learning

In the era of large astronomical surveys, photometric classification of supernovae (SNe) has become an important research field due to limited spectroscopic resources for candidate follow-up and classification. In this work, we present a…

天体物理仪器与方法 · 物理学 2016-12-14 A. Möller , V. Ruhlmann-Kleider , C. Leloup , J. Neveu , N. Palanque-Delabrouille , J. Rich , R. Carlberg , C. Lidman , C. Pritchet

Real-time Analysis and Selection Biases in the Supernova Legacy Survey

The Supernova Legacy Survey (SNLS) has produced a high-quality, homogeneous sample of Type Ia supernovae (SNe Ia) out to redshifts greater than z=1. In its first four years of full operation (to June 2007), the SNLS discovered more than…

宇宙学与河外天体物理 · 物理学 2015-05-19 K. Perrett , D. Balam , M. Sullivan , C. Pritchet , A. Conley , R. Carlberg , P. Astier , C. Balland , S. Basa , D. Fouchez , J. Guy , D. Hardin , I. M. Hook , D. A. Howell , R. Pain , N. Regnault

SNLS: Overview and High-z Spectroscopy

The Supernova Legacy Survey (SNLS; http://cfht.hawaii.edu/SNLS) will discover and obtain g'r'i'z' lightcurves for more than 700 spectroscopically confirmed SNe Ia (0.3<z<0.9) to differentiate between competing models for Dark Energy. We fit…

天体物理学 · 物理学 2019-08-14 D. Andrew Howell

The Foundation Supernova Survey: Motivation, Design, Implementation, and First Data Release

The Foundation Supernova Survey aims to provide a large, high-fidelity, homogeneous, and precisely-calibrated low-redshift Type Ia supernova (SN Ia) sample for cosmology. The calibration of the current low-redshift SN sample is the largest…

高能天体物理现象 · 物理学 2018-05-02 Ryan J. Foley , Daniel Scolnic , Armin Rest , S. W. Jha , Y. -C. Pan , A. G. Riess , P. Challis , K. C. Chambers , D. A. Coulter , K. G. Dettman , M. M. Foley , O. D. Fox , M. E. Huber , D. O. Jones , C. D. Kilpatrick , R. P. Kirshner , A. S. B. Schultz , M. R. Siebert , H. A. Flewelling , B. Gibson , E. A. Magnier , J. A. Miller , N. Primak , S. J. Smartt , K. W. Smith , R. J. Wainscoat , C. Waters , M. Willman

Supernova Legacy Survey: Using Spectral Signatures To Improve Type Ia Supernovae As Distance Indicators

GMOS optical long-slit spectroscopy at the Gemini-North telescope was used to classify targets from the Supernova Legacy Survey (SNLS) from July 2005 and May 2006 - May 2008. During this time, 95 objects were observed. Where possible the…

宇宙学与河外天体物理 · 物理学 2015-05-19 E. S. Walker , I. M. Hook , M. Sullivan , D. A. Howell , P. Astier , C. Balland , S. Basa , T. J. Bronder , R. Carlberg , A. Conley , D. Fouchez , J. Guy , D. Hardin , R. Pain , K. Perrett , C. Pritchet , N. Regnault , J. Rich , G. Aldering , H. K. Fakhouri , T. Kronborg , N. Palanque-Delabrouille , S. Perlmutter , V. Ruhlmann-Kleider , T. Zhang

Photometric redshifts for supernovae Ia in the Supernova Legacy Survey

We present a method using the SALT2 light curve fitter to determine the redshift of Type Ia supernovae in the Supernova Legacy Survey (SNLS) based on their photometry in g', r', i' and z'. On 289 supernovae of the first three years of SNLS…

宇宙学与河外天体物理 · 物理学 2014-11-20 N. Palanque-Delabrouille , V. Ruhlmann-Kleider , S. Pascal , J. Rich , J. Guy , G. Bazin , P. Astier , C. Balland , S. Basa , R. G. Carlberg , A. Conley , D. Fouchez , D. Hardin , I. M. Hook , D. A. Howell , R. Pain , K. Perrett , C. J. Pritchet , N. Regnault , M. Sullivan

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…

宇宙学与河外天体物理 · 物理学 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

Evolution in the Volumetric Type Ia Supernova Rate from the Supernova Legacy Survey

We present a measurement of the volumetric Type Ia supernova (SN Ia) rate (SNR_Ia) as a function of redshift for the first four years of data from the Canada-France-Hawaii Telescope (CFHT) Supernova Legacy Survey (SNLS). This analysis…

宇宙学与河外天体物理 · 物理学 2015-06-05 K. Perrett , M. Sullivan , A. Conley , S. Gonzalez-Gaitan , R. Carlberg , D. Fouchez , P. Ripoche , J. D. Neill , P. Astier , D. Balam , C. Balland , S. Basa , J. Guy , D. Hardin , I. M. Hook , D. A. Howell , R. Pain , N. Palanque-Delabrouille , C. Pritchet , N. Regnault , J. Rich , V. Ruhlmann-Kleider , S. Baumont , C. Lidman , S. Perlmutter , E. S. Walker

Improved cosmological constraints from a joint analysis of the SDSS-II and SNLS supernova samples

We present cosmological constraints from a joint analysis of type Ia supernova (SN Ia) observations obtained by the SDSS-II and SNLS collaborations. The data set includes several low-redshift samples (z<0.1), all 3 seasons from the SDSS-II…

宇宙学与河外天体物理 · 物理学 2015-06-18 M. Betoule , R. Kessler , J. Guy , J. Mosher , D. Hardin , R. Biswas , P. Astier , P. El-Hage , M. Konig , S. Kuhlmann , J. Marriner , R. Pain , N. Regnault , C. Balland , B. A. Bassett , P. J. Brown , H. Campbell , R. G. Carlberg , F. Cellier-Holzem , D. Cinabro , A. Conley , C. B. D'Andrea , D. L. DePoy , M. Doi , R. S. Ellis , S. Fabbro , A. V. Filippenko , R. J. Foley , J. A. Frieman , D. Fouchez , L. Galbany , A. Goobar , R. R. Gupta , G. J. Hill , R. Hlozek , C. J. Hogan , I. M. Hook , D. A. Howell , S. W. Jha , L. Le Guillou , G. Leloudas , C. Lidman , J. L. Marshall , A. Möller , A. M. Mourão , J. Neveu , R. Nichol , M. D. Olmstead , N. Palanque-Delabrouille , S. Perlmutter , J. L. Prieto , C. J. Pritchet , M. Richmond , A. G. Riess , V. Ruhlmann-Kleider , M. Sako , K. Schahmaneche , D. P. Schneider , M. Smith , J. Sollerman , M. Sullivan , N. A. Walton , C. J. Wheeler

The Supernova Legacy Survey

Type Ia supernovae (SNe Ia) currently provide the most direct evidence for an accelerating Universe and for the existence of an unknown "dark energy" driving this expansion. The 5-year Supernova Legacy Survey (SNLS;…

天体物理学 · 物理学 2019-08-14 Mark Sullivan

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…

宇宙学与河外天体物理 · 物理学 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

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…

天体物理学 · 物理学 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

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…

宇宙学与河外天体物理 · 物理学 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