Related papers: SNLS: Overview and High-z Spectroscopy

The Core-collapse rate from the Supernova Legacy Survey

We use three years of data from the Supernova Legacy Survey (SNLS) to study the general properties of core-collapse and type Ia supernovae. This is the first such study using the "rolling search" technique which guarantees well-sampled SNLS…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 G. Bazin , N. Palanque-Delabrouille , J. Rich , V. Ruhlmann-Kleider , E. Aubourg , L. Le Guillou , 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 , P. Antilogus , V. Arsenijevic , S. Baumont , S. Fabbro , J. Le Du , C. Lidman , M. Mouchet , A. Mourão , E. S. Walker

Detectability and Characterisation of Strongly Lensed Supernova Lightcurves in the Zwicky Transient Facility

The Zwicky Transient Facility (ZTF) was expected to detect more than one strong gravitationally-lensed supernova (glSN) per year, but only one event was identified in the first four years of the survey. This work investigates selection…

High Energy Astrophysical Phenomena · Physics 2024-06-04 A. Sagués Carracedo , A. Goobar , E. Mörtsell , N. Arendse , J. Johansson , A. Townsend , S. Dhawan , J. Nordin , J. Sollerman , S. Schulze

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

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…

Cosmology and Nongalactic Astrophysics · Physics 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

Photo-zSNthesis: Converting Type Ia Supernova Lightcurves to Redshift Estimates via Deep Learning

Upcoming photometric surveys will discover tens of thousands of Type Ia supernovae (SNe Ia), vastly outpacing the capacity of our spectroscopic resources. In order to maximize the science return of these observations in the absence of…

Cosmology and Nongalactic Astrophysics · Physics 2023-09-11 Helen Qu , Masao Sako

The Pantheon+ Analysis: The Full Dataset and Light-Curve Release

Here we present 1701 light curves of 1550 spectroscopically confirmed Type Ia supernovae (SNe Ia) that will be used to infer cosmological parameters as part of the Pantheon+ SN analysis and the SH0ES (Supernovae and H0 for the Equation of…

Cosmology and Nongalactic Astrophysics · Physics 2022-10-26 Dan Scolnic , Dillon Brout , Anthony Carr , Adam G. Riess , Tamara M. Davis , Arianna Dwomoh , David O. Jones , Noor Ali , Pranav Charvu , Rebecca Chen , Erik R. Peterson , Brodie Popovic , Benjamin M. Rose , Charlotte Wood , Peter J. Brown , Ken Chambers , David A. Coulter , Kyle G. Dettman , Georgios Dimitriadis , Alexei V. Filippenko , Ryan J. Foley , Saurabh W. Jha , Charles D. Kilpatrick , Robert P. Kirshner , Yen-Chen Pan , Armin Rest , Cesar Rojas-Bravo , Matthew R. Siebert , Benjamin E. Stahl , WeiKang Zheng

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…

Astrophysics of Galaxies · Physics 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

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 -…

Astrophysics · Physics 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

Detection and classification of supernovae beyond z~2 redshift with the James Webb Space Telescope

Future time-domain surveys for transient events in the near- and mid-infrared bands will significantly extend our understanding about the physics of the early Universe. In this paper we study the implications of a deep (~27 mag), long-term…

High Energy Astrophysical Phenomena · Physics 2019-04-10 Eniko Regos , Jozsef Vinko

The Hubble Space Telescope Cluster Supernova Survey: V. Improving the Dark Energy Constraints Above z>1 and Building an Early-Type-Hosted Supernova Sample

We present ACS, NICMOS, and Keck AO-assisted photometry of 20 Type Ia supernovae SNe Ia from the HST Cluster Supernova Survey. The SNe Ia were discovered over the redshift interval 0.623 < z < 1.415. Fourteen of these SNe Ia pass our strict…

Cosmology and Nongalactic Astrophysics · Physics 2012-08-21 N. Suzuki , D. Rubin , C. Lidman , G. Aldering , R. Amanullah , K. Barbary , L. F. Barrientos , J. Botyanszki , M. Brodwin , N. Connolly , K. S. Dawson , A. Dey , M. Doi , M. Donahue , S. Deustua , P. Eisenhardt , E. Ellingson , L. Faccioli , V. Fadeyev , H. K. Fakhouri , A. S. Fruchter , D. G. Gilbank , M. D. Gladders , G. Goldhaber , A. H. Gonzalez , A. Goobar , A. Gude , T. Hattori , H. Hoekstra , E. Hsiao , X. Huang , Y. Ihara , M. J. Jee , D. Johnston , N. Kashikawa , B. Koester , K. Konishi , M. Kowalski , E. V. Linder , L. Lubin , J. Melbourne , J. Meyers , T. Morokuma , F. Munshi , C. Mullis , T. Oda , N. Panagia , S. Perlmutter , M. Postman , T. Pritchard , J. Rhodes , P. Ripoche , P. Rosati , D. J. Schlegel , A. Spadafora , S. A. Stanford , V. Stanishev , D. Stern , M. Strovink , N. Takanashi , K. Tokita , M. Wagner , L. Wang , N. Yasuda , H. K. C. Yee

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

Superluminous Supernovae from the Dark Energy Survey

We present a sample of 21 hydrogen-free superluminous supernovae (SLSNe-I), and one hydrogen-rich SLSN (SLSN-II) detected during the five-year Dark Energy Survey (DES). These SNe, located in the redshift range 0.220<z<1.998, represent the…

High Energy Astrophysical Phenomena · Physics 2019-06-24 C. R. Angus , M. Smith , M. Sullivan , C. Inserra , P. Wiseman , C. B. D'Andrea , B. P. Thomas , R. C. Nichol , L. Galbany , M. Childress , J. Asorey , P. J. Brown , R. Casas , F. J. Castander , C. Curtin , C. Frohmaier , K. Glazebrook , D. Gruen , C. Gutierrez , R. Kessler , A. G. Kim , C. Lidman , E. Macaulay , P. Nugent , M. Pursiainen , M. Sako , M. Soares-Santos , R. C. Thomas , T. M. C. Abbott , S. Avila , E. Bertin , D. Brooks , E. Buckley-Geer , D. L. Burke , A. Carnero Rosell , J. Carretero , L. N. da Costa , J. De Vicente , S. Desai , H. T. Diehl , P. Doel , T. F. Eifler , B. Flaugher , P. Fosalba , J. Frieman , J. García-Bellido , R. A. Gruendl , J. Gschwend , W. G. Hartley , D. L. Hollowood , K. Honscheid , B. Hoyle , D. J. James , K. Kuehn , N. Kuropatkin , O. Lahav , M. Lima , M. A. G. Maia , M. March , J. L. Marshall , F. Menanteau , C. J. Miller , R. Miquel , R. L. C. Ogando , A. A. Plazas , A. K. Romer , E. Sanchez , R. Schindler , M. Schubnell , F. Sobreira , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , D. L. Tucker

Type Ia Supernova Spectral Line Ratios as Luminosity Indicators

Type Ia supernovae have played a crucial role in the discovery of the dark energy, via the measurement of their light curves and the determination of the peak brightness via fitting templates to the observed lightcurve shape. Two…

Astrophysics · Physics 2008-11-26 Sebastien Bongard , E. Baron , G. Smadja , David Branch , Peter H. Hauschildt

SNIa photometric studies in SNLS

The discovery of accelerated expansion using supernova surveys has been one of the most surprising discoveries in cosmology in the past ten years. Present and future surveys, among which SNLS, JDEM or LSST, are based on samples of a few…

Cosmology and Nongalactic Astrophysics · Physics 2019-08-13 N. Palanque-Delabrouille

An Intensive HST Survey for z>1 Supernovae by Targeting Galaxy Clusters

We present a new survey strategy to discover and study high redshift Type Ia supernovae (SNe Ia) using the Hubble Space Telescope (HST). By targeting massive galaxy clusters at 0.9<z<1.5, we obtain a twofold improvement in the efficiency of…

Cosmology and Nongalactic Astrophysics · Physics 2010-03-23 K. S. Dawson , G. Aldering , R. Amanullah , K. Barbary , L. F. Barrientos , M. Brodwin , N. Connolly , A. Dey , M. Doi , M. Donahue , P. Eisenhardt , E. Ellingson , L. Faccioli , V. Fadeyev , H. K. Fakhouri , A. S. Fruchter , D. G. Gilbank , M. D. Gladders , G. Goldhaber , A. H. Gonzalez , A. Goobar , A. Gude , T. Hattori , H. Hoekstra , X. Huang , Y. Ihara , B. T. Jannuzi , D. Johnston , K. Kashikawa , B. Koester , K. Konishi , M. Kowalski , C. Lidman , E. V. Linder , L. Lubin , J. Meyers , T. Morokuma , F. Munshi , C. Mullis , T. Oda , N. Panagia , S. Perlmutter , M. Postman , T. Pritchard , J. Rhodes , P. Rosati , D. Rubin , D. J. Schlegel , A. Spadafora , S. A. Stanford , V. Stanishev , D. Stern , M. Strovink , N. Suzuki , N. Takanashi , K. Tokita , M. Wagner , L. Wang , N. Yasuda , H. K. C. Yee

First Cosmology Results Using Type Ia Supernovae From the Dark Energy Survey: Survey Overview and Supernova Spectroscopy

We present spectroscopy from the first three seasons of the Dark Energy Survey Supernova Program (DES-SN). We describe the supernova spectroscopic program in full: strategy, observations, data reduction, and classification. We have…

Cosmology and Nongalactic Astrophysics · Physics 2021-05-26 C. B. D'Andrea , M. Smith , M. Sullivan , R. C. Nichol , R. C. Thomas , A. G. Kim , A. Möller , M. Sako , F. J. Castander , A. V. Filippenko , R. J. Foley , L. Galbany , S. González-Gaitán , E. Kasai , R. P. Kirshner , C. Lidman , D. Scolnic , D. Brout , T. M. Davis , R. R. Gupta , S. R. Hinton , R. Kessler , J. Lasker , E. Macaulay , R. C. Wolf , B. Zhang , J. Asorey , A. Avelino , B. A. Bassett , J. Calcino , D. Carollo , R. Casas , P. Challis , M. Childress , A. Clocchiatti , S. Crawford , K. Glazebrook , D. A. Goldstein , M. L. Graham , J. K. Hoormann , K. Kuehn , G. F. Lewis , K. S. Mandel , E. Morganson , D. Muthukrishna , P. Nugent , Y. -C. Pan , M. Pursiainen , R. Sharp , N. E. Sommer , E. Swann , B. E. Tucker , S. A. Uddin , P. Wiseman , W. Zheng , T. M. C. Abbott , J. Annis , S. Avila , K. Bechtol , G. M. Bernstein , E. Bertin , D. Brooks , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , C. E. Cunha , L. N. da Costa , C. Davis , J. De Vicente , H. T. Diehl , T. F. Eifler , J. Estrada , J. Frieman , J. García-Bellido , E. Gaztanaga , D. W. Gerdes , D. Gruen , R. A. Gruendl , J. Gschwend , G. Gutierrez , W. G. Hartley , D. L. Hollowood , K. Honscheid , B. Hoyle , D. J. James , M. W. G. Johnson , M. D. Johnson , N. Kuropatkin , T. S. Li , M. Lima , M. A. G. Maia , J. L. Marshall , P. Martini , F. Menanteau , C. J. Miller , R. Miquel , E. Neilsen , R. L. C. Ogando , A. A. Plazas , A. K. Romer , E. Sanchez , V. Scarpine , M. Schubnell , S. Serrano , I. Sevilla-Noarbe , F. Sobreira , E. Suchyta , G. Tarle , D. L. Tucker , W. Wester

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…

Astrophysics · Physics 2009-01-05 V. Arsenijevic , S. Fabbro , A. M. Mourao , A. J. Rica da Silva

Optical Spectra and Light Curves of Supernovae

I review recent optical observations of supernovae (SNe) conducted by my group. The Lick Observatory Supernova Search with the 0.76-m Katzman Automatic Imaging Telescope is currently the world's most successful search for nearby SNe. We…

Astrophysics · Physics 2009-11-10 Alexei V. Filippenko

Photometric selection of high-redshift type Ia supernovae

We present a method for selecting high-redshift type Ia supernovae (SNe Ia) located via rolling SN searches. The technique, using both color and magnitude information of events from only 2-3 epochs of multi-band real-time photometry, is…

Astrophysics · Physics 2008-11-26 M. Sullivan , D. A. Howell , K. Perrett , P. Nugent , P. Astier , E. Aubourg , D. Balam , S. Basa , R. Carlberg , A. Conley , S. Fabbro , D. Fouchez , J. Guy , I. Hook , H. Lafoux , J. D. Neill , R. Pain , N. Palanque-Delabrouille , C. Pritchet , N. Regnault , J. Rich , R. Taillet , G. Aldering , S. Baumont , J. Bronder , M. Filiol , R. Knop , S. Perlmutter , C. Tao

The Dark Energy Survey 5-year photometrically classified type Ia supernovae without host-galaxy redshifts

Current and future Type Ia Supernova (SN Ia) surveys will need to adopt new approaches to classifying SNe and obtaining their redshifts without spectra if they wish to reach their full potential. We present here a novel approach that uses…

Cosmology and Nongalactic Astrophysics · Physics 2024-08-13 A. Möller , P. Wiseman , M. Smith , C. Lidman , T. M. Davis , R. Kessler , M. Sako , M. Sullivan , L. Galbany , J. Lee , R. C. Nichol , B. O. Sánchez , M. Vincenzi , B. E. Tucker , T. M. C. Abbott , M. Aguena , S. Allam , O. Alves , F. Andrade-Oliveira , D. Bacon , E. Bertin , D. Brooks , A. Carnero Rosell , F. J. Castander , S. Desai , H. T. Diehl , S. Everett , I. Ferrero , D. Friedel , J. Frieman , J. García-Bellido , E. Gaztanaga , G. Giannini , R. A. Gruendl , G. Gutierrez , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. J. James , K. Kuehn , O. Lahav , S. Lee , J. L. Marshall , J. Mena-Fernández , F. Menanteau , R. Miquel , J. Myles , R. L. C. Ogando , A. Palmese , A. Pieres , A. A. Plazas Malagón , A. Roodman , E. Sanchez , D. Sanchez Cid , I. Sevilla-Noarbe , E. Suchyta , M. E. C. Swanson , G. Tarle , D. L. Tucker , A. R. Walker , N. Weaverdyck , L. N. da Costa , M. E. S. Pereira