相关论文: Supernova Legacy Survey: Using Spectral Signatures…

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

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

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 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 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

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

Diversity of supernovae Ia determined using equivalent widths of Si II 4000

Spectroscopic and photometric properties of low and high-z supernovae Ia (SNe Ia) have been analyzed in order to achieve a better understanding of their diversity and to identify possible SN Ia sub-types. We use wavelet transformed spectra…

天体物理学 · 物理学 2009-01-05 V. Arsenijevic , S. Fabbro , A. M. Mourao , A. J. Rica da Silva

NTT and NOT spectroscopy of SDSS-II supernovae

Context. The SDSS-II Supernova Survey, conducted between 2005 and 2007, was designed to detect a large number of Type Ia supernovae (SNe Ia) around z~0.2, the redshift "gap" between low-z and high-z SN searches. The survey has provided…

宇宙学与河外天体物理 · 物理学 2015-05-20 L. Ostman , J. Nordin , A. Goobar , R. Amanullah , M. Smith , J. Sollerman , V. Stanishev , M. D. Stritzinger , B. A. Bassett , T. M. Davis , E. Edmondson , J. A. Frieman , P. M. Garnavich , H. Lampeitl , G. Leloudas , J. Marriner , R. C. Nichol , K. Romer , M. Sako , D. P. Schneider , C. Zheng

The Sloan Digital Sky Survey-II Supernova Survey: Technical Summary

The Sloan Digital Sky Survey-II (SDSS-II) has embarked on a multi-year project to identify and measure light curves for intermediate-redshift (0.05 < z < 0.35) Type Ia supernovae (SNe Ia) using repeated five-band (ugriz) imaging over an…

天体物理学 · 物理学 2008-11-26 Joshua A. Frieman , B. Bassett , A. Becker , C. Choi , D. Cinabro , F. DeJongh , D. L. Depoy , B. Dilday , M. Doi , P. M. Garnavich , C. J. Hogan , J. Holtzman , M. Im , S. Jha , R. Kessler , K. Konishi , H. Lampeitl , J. Marriner , J. L. Marshall , D. McGinnis , G. Miknaitis , R. C. Nichol , J. L. Prieto , A. G. Riess , M. W. Richmond , R. Romani , M. Sako , D. P. Schneider , M. Smith , N. Takanashi , K. Tokita , K. van der Heyden , N. Yasuda , C. Zheng , J. Adelman-McCarthy , J. Annis , R. J. Assef , J. Barentine , R. Bender , R. D. Blandford , W. N. Boroski , M. Bremer , H. Brewington , C. A. Collins , A. Crotts , J. Dembicky , J. Eastman , A. Edge , E. Edmondson , E. Elson , M. E. Eyler , A. V. Filippenko , R. J. Foley , S. Frank , A. Goobar , T. Gueth , J. E. Gunn , M. Harvanek , U. Hopp , Y. Ihara , Ž. Ivezić , S. Kahn , J. Kaplan , S. Kent , W. Ketzeback , S. J. Kleinman , W. Kollatschny , R. G. Kron , J. Krzesiński , D. Lamenti , G. Leloudas , H. Lin , D. C. Long , J. Lucey , R. H. Lupton , E. Malanushenko , V. Malanushenko , R. J. McMillan , J. Mendez , C. W. Morgan , T. Morokuma , A. Nitta , L. Ostman , K. Pan , C. M. Rockosi , A. K. Romer , P. Ruiz-Lapuente , G. Saurage , K. Schlesinger , S. A. Snedden , J. Sollerman , C. Stoughton , M. Stritzinger , M. SubbaRao , D. Tucker , P. Vaisanen , L. C. Watson , S. Watters , J. C. Wheeler , B. Yanny , D. York

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

Measurements of the Rate of Type Ia Supernovae at Redshift z < ~0.3 from the SDSS-II Supernova Survey

We present a measurement of the volumetric Type Ia supernova (SN Ia) rate based on data from the Sloan Digital Sky Survey II (SDSS-II) Supernova Survey. The adopted sample of supernovae (SNe) includes 516 SNe Ia at redshift z \lesssim 0.3,…

宇宙学与河外天体物理 · 物理学 2010-05-07 Benjamin Dilday , Mathew Smith , Bruce Bassett , Andrew Becker , Ralf Bender , Francisco Castander , David Cinabro , Alexei V. Filippenko , Joshua A. Frieman , Lluis Galbany , Peter M. Garnavich , Ariel Goobar , Ulrich Hopp , Yutaka Ihara , Saurabh W. Jha , Richard Kessler , Hubert Lampeitl , John Marriner , Ramon Miquel , Mercedes Molla , Robert C. Nichol , Jakob Nordin , Adam G. Riess , Masao Sako , Donald P. Schneider , Jesper Sollerman , J. Craig Wheeler , Linda Ostman , Dmitry Bizyaev , Howard Brewington , Elena Malanushenko , Viktor Malanushenko , Dan Oravetz , Kaike Pan , Audrey Simmons , Stephanie Snedden

Berkeley Supernova Ia Program I: Observations, Data Reduction, and Spectroscopic Sample of 582 Low-Redshift Type Ia Supernovae

In this first paper in a series we present 1298 low-redshift (z\leq0.2) optical spectra of 582 Type Ia supernovae (SNe Ia) observed from 1989 through 2008 as part of the Berkeley SN Ia Program (BSNIP). 584 spectra of 199 SNe Ia have…

宇宙学与河外天体物理 · 物理学 2015-06-04 Jeffrey M. Silverman , Ryan J. Foley , Alexei V. Filippenko , Mohan Ganeshalingam , Aaron J. Barth , Ryan Chornock , Christopher V. Griffith , Jason J. Kong , Nicholas Lee , Douglas C. Leonard , Thomas Matheson , Emily G. Miller , Thea N. Steele , Brian J. Barris , Joshua S. Bloom , Bethany E. Cobb , Alison L. Coil , Louis-Benoit Desroches , Elinor L. Gates , Luis C. Ho , Saurabh W. Jha , Michael T. Kandrashoff , Weidong Li , Kaisey S. Mandel , Maryam Modjaz , Matthew R. Moore , Robin E. Mostardi , Marina S. Papenkova , Sung Park , Daniel A. Perley , Dovi Poznanski , Cassie A. Reuter , James Scala , Franklin J. D. Serduke , Joseph C. Shields , Brandon J. Swift , John L. Tonry , Schuyler D. Van Dyk , Xiaofeng Wang , Diane S. Wong

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…

天体物理学 · 物理学 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 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…

宇宙学与河外天体物理 · 物理学 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

The ESO's VLT Type Ia supernova spectral set of the final two years of SNLS

We aim to present 70 spectra of 68 new high-redshift type Ia supernovae (SNeIa) measured at ESO's VLT during the final two years of operation (2006-2008) of the Supernova Legacy Survey (SNLS). We use the full five year SNLS VLT spectral set…

星系天体物理 · 物理学 2018-07-04 C. Balland , F. Cellier-Holzem , C. Lidman , P. Astier , M. Betoule , R. G. Carlberg , A. Conley , R. S. Ellis , J. Guy , D. Hardin , I. M. Hook , D. A. Howell , R. Pain , C. J. Pritchet , N. Regnault , M. Sullivan , V. Arsenijevic , S. Baumont , P. El-Hage , S. Fabbro , D. Fouchez , A. Mitra , A. Möller , A. M. Mourão , J. Neveu , M. Roman , V. Ruhlmann-Kleider

Spectra of High-Redshift Type Ia Supernovae and a Comparison with their Low-Redshift Counterparts

We present spectra for 14 high-redshift (0.17 < z < 0.83) supernovae, which were discovered by the Supernova Cosmology Project as part of a campaign to measure cosmological parameters. The spectra are used to determine the redshift and…

天体物理学 · 物理学 2008-11-26 I. M. Hook , D. A. Howell , G. Aldering , R. Amanullah , M. S. Burns , A. Conley , S. E. Deustua , R. Ellis , S. Fabbro , V. Fadeyev , G. Folatelli , G. Garavini , R. Gibbons , G. Goldhaber , A. Goobar , D. E. Groom , A. G. Kim , R. A. Knop , M. Kowalski , C. Lidman , S. Nobili , P. E. Nugent , R. Pain , C. R. Pennypacker , S. Perlmutter , P. Ruiz-Lapuente , G. Sainton , B. E. Schaefer , E. Smith , A. L. Spadafora , V. Stanishev , R. C. Thomas , N. A. Walton , L. Wang , W. M. Wood-Vasey

First-Year Spectroscopy for the SDSS-II Supernova Survey

This paper presents spectroscopy of supernovae discovered in the first season of the Sloan Digital Sky Survey-II Supernova Survey. This program searches for and measures multi-band light curves of supernovae in the redshift range z = 0.05 -…

天体物理学 · 物理学 2008-11-26 Chen Zheng , Roger W. Romani , Masao Sako , John Marriner , Bruce Bassett , Andrew Becker , Changsu Choi , David Cinabro , Fritz DeJongh , Darren L. Depoy , Ben Dilday , Mamoru Doi , Joshua A. Frieman , Peter M. Garnavich , Craig J. Hogan , Jon Holtzman , Myungshin Im , Saurabh Jha , Richard Kessler , Kohki Konishi , Hubert Lampeitl , Jennifer L. Marshall , David McGinnis , Gajus Miknaitis , Robert C. Nichol , Jose Luis Prieto , Adam G. Riess , Michael W. Richmond , Donald P. Schneider , Mathew Smith , Naohiro Takanashi , Kouichi Tokita , Kurt van der Heyden , Naoki Yasuda , Roberto J. Assef , John Barentine , Ralf Bender , Roger D. Blandford , Malcolm Bremer , Howard Brewington , Chris A. Collins , Arlin Crotts , Jack Dembicky , Jason Eastman , Alastair Edge , Ed Elson , Michael E. Eyler , Alexei V. Filippenko , Ryan J. Foley , Stephan Frank , Ariel Goobar , Michael Harvanek , Ulrich Hopp , Yutaka Ihara , Steven Kahn , William Ketzeback , Scott J. Kleinman , Wolfram Kollatschny , Jurek Krzesiński , Giorgos Leloudas , Daniel C. Long , John Lucey , Elena Malanushenko , Viktor Malanushenko , Russet J. McMillan , Christopher W. Morgan , Tomoki Morokuma , Atsuko Nitta , Linda Ostman , Kaike Pan , A. Kathy Romer , Gabrelle Saurage , Katie Schlesinger , Stephanie A. Snedden , Jesper Sollerman , Maximilian Stritzinger , Linda C. Watson , Shannon Watters , J. Craig Wheeler , Donald York

Photometric Calibration of the Supernova Legacy Survey Fields

The 5-year project Supernova Legacy Survey (SNLS) delivers $\sim 100$ Type-Ia supernovae (SNe Ia) per year, in the redshift range $0.3 < z < 1.0$, with well-sampled $g'r'i'z'$ lightcurves. The SNLS Collaboration uses the 1 deg$^2$ Megacam…

天体物理学 · 物理学 2007-05-23 N. Regnault

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…

高能天体物理现象 · 物理学 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

Spectroscopy of Type Ia Supernovae by the Carnegie Supernova Project

This is the first release of optical spectroscopic data of low-redshift Type Ia supernovae (SNe Ia) by the Carnegie Supernova Project including 604 previously unpublished spectra of 93 SNe Ia. The observations cover a range of phases from…

宇宙学与河外天体物理 · 物理学 2015-02-05 Gastón Folatelli , Nidia Morrell , Mark M. Phillips , Eric Hsiao , Abdo Campillay , Carlos Contreras , Sergio Castellón , Mario Hamuy , Wojtek Krzeminski , Miguel Roth , Maximilian Stritzinger , Christopher R. Burns , Wendy L. Freedman , Barry F. Madore , David Murphy , S. E. Persson , José L. Prieto , Nicholas B. Suntzeff , Kevin Krisciunas , Joseph P. Anderson , Francisco Förster , José Maza , Giuliano Pignata , P. Andrea Rojas , Luis Boldt , Francisco Salgado , Pamela Wyatt , Felipe Olivares E. , Avishay Gal-Yam , Masao Sako