Related papers: Not Color Blind: Using Multiband Photometry to Cla…

First-year Sloan Digital Sky Survey-II (SDSS-II) Supernova Results: Hubble Diagram and Cosmological Parameters

We present measurements of the Hubble diagram for 103 Type Ia supernovae (SNe) with redshifts 0.04 < z < 0.42, discovered during the first season (Fall 2005) of the Sloan Digital Sky Survey-II (SDSS-II) Supernova Survey. These data fill in…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Richard Kessler , Andrew Becker , David Cinabro , Jake Vanderplas , Joshua A. Frieman , John Marriner , Tamara M Davis , Benjamin Dilday , Jon Holtzman , Saurabh Jha , Hubert Lampeitl , Masao Sako , Mathew Smith , Chen Zheng , Robert C. Nichol , Bruce Bassett , Ralf Bender , Darren L. Depoy , Mamoru Doi , Ed Elson , Alex V. Filippenko , Ryan J. Foley , Peter M. Garnavich , Ulrich Hopp , Yutaka Ihara , William Ketzeback , W. Kollatschny , Kohki Konishi , Jennifer L. Marshall , Russet J. McMillan , Gajus Miknaitis , Tomoki Morokuma , Edvard M"ortsell , Kaike Pan , Jose Luis Prieto , Michael W. Richmond , Adam G. Riess , Roger Romani , Donald P. Schneider , Jesper Sollerman , Naohiro Takanashi , Kouichi Tokita , Kurt van der Heyden , J. C. Wheeler , Naoki Yasuda , Donald York

The Type Ia Supernova Rate at z$\sim 0.4 $

We present the first measurement of the rate of Type Ia supernovae at high redshift. The result is derived using a large subset of data from the Supernova Cosmology Project. Three supernovae were discovered in a surveyed area of 1.7 square…

Astrophysics · Physics 2011-03-10 R. Pain , I. M. Hook , S. Deustua , S. Gabi , G. Goldhaber , A. Goobar , D. Groom , A. G. Kim , M. Y. Kim , J. C. Lee , C. R. Pennypacker , S. Perlmutter , I. A. Small , R. S. Ellis , R. G. McMahon , K. Glazebrook , B. J. Boyle , P. S. Bunclark , D. Carter , M. J. Irwin

Semi-supervised Learning for Photometric Supernova Classification

We present a semi-supervised method for photometric supernova typing. Our approach is to first use the nonlinear dimension reduction technique diffusion map to detect structure in a database of supernova light curves and subsequently employ…

Instrumentation and Methods for Astrophysics · Physics 2015-05-27 Joseph W. Richards , Darren Homrighausen , Peter E. Freeman , Chad M. Schafer , Dovi Poznanski

Constraining R$_V$ Variation Using Highly Reddened Type Ia Supernovae from the Pantheon+ Sample

Type Ia supernovae (SNe Ia) are powerful tools for measuring the expansion history of the universe, but the impact of dust around SNe Ia remains unknown and is a critical systematic uncertainty. One way to improve our empirical description…

Cosmology and Nongalactic Astrophysics · Physics 2022-09-14 Benjamin M. Rose , Brodie Popovic , Dan Scolnic , Dillon Brout

Spectroscopy of High-Redshift Supernovae from the ESSENCE Project: The First Four Years

We present the results of spectroscopic observations from the ESSENCE high-redshift supernova (SN) survey during its first four years of operation. This sample includes spectra of all SNe Ia whose light curves were presented by Miknaitis et…

Astrophysics · Physics 2009-11-13 R. J. Foley , T. Matheson , S. Blondin , R. Chornock , J. M. Silverman , P. Challis , A. Clocchiatti , A. V. Filippenko , R. P. Kirshner , B. Leibundgut , J. Sollerman , J. Spyromilio , J. L. Tonry , T. M. Davis , P. M. Garnavich , S. W. Jha , K. Krisciunas , W. Li , G. Pignata , A. Rest , A. G. Riess , B. P. Schmidt , R. C. Smith , C. W. Stubbs , B. E. Tucker , W. M. Wood-Vasey

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

The Rate of Supernovae. II. the Selection Effects and the Frequencies Per Unit Blue Luminosity

We present new estimates of the observed rates of SNe determined with the {\em control time} method applied to the files of observations of two long term, photographic SN searches carried out at the Asiago and Sternberg Observatories. Our…

Astrophysics · Physics 2007-05-23 E. Cappellaro , M. Turatto , Benetti , D. Yu. Tsvetkov , O. S. Bartunov , I. N. Makarova

Optical Spectroscopy of Type Ia Supernovae

We present 432 low-dispersion optical spectra of 32 Type Ia supernovae (SNe Ia) that also have well-calibrated light curves. The coverage ranges from 6 epochs to 36 epochs of spectroscopy. Most of the data were obtained with the 1.5m…

Astrophysics · Physics 2009-11-13 T. Matheson , R. P. Kirshner , P. Challis , S. Jha , P. M. Garnavich , P. Berlind , M. L. Calkins , S. Blondin , Z. Balog , A. E. Bragg , N. Caldwell , K. Dendy Concannon , E. E. Falco , G. J. M. Graves , J. P. Huchra , J. Kuraszkiewicz , J. A. Mader , A. Mahdavi , M. Phelps , K. Rines , I. Song , B. J. Wilkes

Type-Ia Supernova Rates to Redshift 2.4 from CLASH: the Cluster Lensing And Supernova survey with Hubble

We present the supernova (SN) sample and Type-Ia SN (SN Ia) rates from the Cluster Lensing And Supernova survey with Hubble (CLASH). Using the Advanced Camera for Surveys and the Wide Field Camera 3 on the Hubble Space Telescope (HST), we…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 O. Graur , S. A. Rodney , D. Maoz , A. G. Riess , S. W. Jha , M. Postman , T. Dahlen , T. W. -S. Holoien , C. McCully , B. Patel , L. -G. Strolger , N. Benitez , D. Coe , S. Jouvel , E. Medezinski , A. Molino , M. Nonino , L. Bradley , A. Koekemoer , I. Balestra , S. B. Cenko , K. I. Clubb , M. E. Dickinson , A. V. Filippenko , T. F. Frederiksen , P. Garnavich , J. Hjorth , D. O. Jones , B. Leibundgut , T. Matheson , B. Mobasher , P. Rosati , J. M. Silverman , V. U , K. Jedruszczuk , C. Li , K. Lin , M. Mirmelstein , J. Neustadt , A. Ovadia , E. H. Rogers

Improving Cosmological Distance Measurements Using Twin Type Ia Supernovae

We introduce a method for identifying "twin" Type Ia supernovae, and using them to improve distance measurements. This novel approach to Type Ia supernova standardization is made possible by spectrophotometric time series observations from…

Cosmology and Nongalactic Astrophysics · Physics 2015-12-16 H. K. Fakhouri , K. Boone , G. Aldering , P. Antilogus , C. Aragon , S. Bailey , C. Baltay , K. Barbary , D. Baugh , S. Bongard , C. Buton , J. Chen , M. Childress , N. Chotard , Y. Copin , P. Fagrelius , U. Feindt , M. Fleury , D. Fouchez , E. Gangler , B. Hayden , A. G. Kim , M. Kowalski , P. -F. Leget , S. Lombardo , J. Nordin , R. Pain , E. Pecontal , R. Pereira , S. Perlmutter , D. Rabinowitz , J. Ren , M. Rigault , D. Rubin , K. Runge , C. Saunders , R. Scalzo , G. Smadja , C. Sofiatti , M. Strovink , N. Suzuki , C. Tao , R. C. Thomas , B. A. Weaver

A graph-based spectral classification of Type II supernovae

Given the ever-increasing number of time-domain astronomical surveys, employing robust, interpretative, and automated data-driven classification schemes is pivotal. Based on graph theory, we present new data-driven classification heuristics…

Instrumentation and Methods for Astrophysics · Physics 2023-06-02 Rafael S. de Souza , Stephen Thorp , Lluís Galbany , Emille E. O. Ishida , Santiago González-Gaitán , Morgan A. Schmitz , Alberto Krone-Martins , Christina Peters

An Optical and Near-Infrared Study of the Type Ia/IIn Supernova PS15si

We present optical/near-infrared spectroscopy and photometry of the supernova (SN) PS15si. This object was originally identified as a Type IIn SN, but here we argue that it should be reclassified as a Type Ia SN with narrow hydrogen lines…

Solar and Stellar Astrophysics · Physics 2016-08-24 Charles D. Kilpatrick , Jennifer E. Andrews , Nathan Smith , Peter Milne , George H. Rieke , WeiKang Zheng , Alexei V. Filippenko

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…

Cosmology and Nongalactic Astrophysics · Physics 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

Studying the Ultraviolet Spectrum of the First Spectroscopically Confirmed Supernova at redshift two

We present observations of DES16C2nm, the first spectroscopically confirmed hydrogen-free superluminous supernova (SLSN-I) at redshift z~2. DES16C2nm was discovered by the Dark Energy Survey (DES) Supernova Program, with follow-up…

High Energy Astrophysical Phenomena · Physics 2018-02-21 M. Smith , M. Sullivan , R. C. Nichol , L. Galbany , C. B. D'Andrea , C. Inserra , C. Lidman , A. Rest , M. Schirmer , A. V. Filippenko , W. Zheng , S. Bradley Cenko , C. R. Angus , P. J. Brown , T. M. Davis , D. A. Finley , S. Gonzalez-Gaitan , C. P. Gutierrez , R. Kessler , S. Kuhlmann , J. Marriner , A. Moller , P. E. Nugent , S. Prajs , R. Thomas , R. Wolf , A. Zenteno , T. M. C. Abbott , F. B. Abdalla , S. Allam , J. Annis , K. Bechtol , A. Benoit-Levy , E. Bertin , D. Brooks , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , M. Crocce , C. E. Cunha , L. N. da Costa , C. Davis , 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. A. Goldstein , D. Gruen , R. A. Gruendl , J. Gschwend , G. Gutierrez , K. Honscheid , D. J. James , M. W. G. Johnson , K. Kuehn , N. Kuropatkin , T. S. Li , M. Lima , M. A. G. Maia , J. L. Marshall , P. Martini , F. Menanteau , C. J. Miller , R. Miguel , R. L. C. Ogando , D. Petravick , A. A. Plazas , A. K. Romer , E. S. Rykoff , M. Sako , E. Sanchez , V. Scarpine , R. Schindler , M. Schubnell , I. Sevilla-Noarbe , R. C. Smith , M. Soares-Santos , F. Sobreira , E. Suchyta , M. E. C. Swanson , G. Tarle , A. R. Walker

The Redshift Distribution of Distant Supernovae and its Use in Probing Reionization

We model the number of detectable supernovae (SNe) as a function of redshift at different flux thresholds, making use of the observed properties of local SNe, such as their lightcurves, fiducial spectra, and peak magnitude distributions. We…

Astrophysics · Physics 2009-11-11 Andrei Mesinger , Benjamin D. Johnson , Zoltan Haiman

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

A Type Ia Supernova at Redshift 1.55 in Hubble Space Telescope Infrared Observations from CANDELS

We report the discovery of a Type Ia supernova (SNIa) at redshift z=1.55 with the infrared detector of the Wide Field Camera 3 (WFC3-IR) on the Hubble Space Telescope (HST). This object was discovered in CANDELS imaging data of the Hubble…

High Energy Astrophysical Phenomena · Physics 2015-06-03 Steven A. Rodney , Adam G. Riess , Tomas Dahlen , Louis-Gregory Strolger , Henry C. Ferguson , Jens Hjorth , Teddy F. Frederiksen , Benjamin J. Weiner , Bahram Mobasher , Stefano Casertano , David O. Jones , Peter Challis , S. M. Faber , Alexei V. Filippenko , Peter Garnavich , Or Graur , Norman A. Grogin , Brian Hayden , Saurabh W. Jha , Robert P. Kirshner , Dale Kocevski , Anton Koekemoer , Curtis McCully , Brandon Patel , Abhijith Rajan , Claudia Scarlata

Prospects of the multi-channel photometric survey telescope in the cosmological application of Type Ia supernovae

The Multi-channel Photometric Survey Telescope (Mephisto) is a real-time, three-color photometric system designed to capture the color evolution of stars and transients accurately. This telescope system can be crucial in cosmological…

Instrumentation and Methods for Astrophysics · Physics 2024-04-19 Zhenyu Wang , Ju-Jia Zhang , Xinzhong Er , Jinming Bai

The Carnegie Supernova Project I: methods to estimate host-galaxy reddening of stripped-envelope supernovae

We aim to improve upon contemporary methods to estimate host-galaxy reddening of stripped-envelope (SE) supernovae (SNe). To this end the Carnegie Supernova Project (CSP-I) SE SNe photometry data release, consisting of nearly three dozen…

High Energy Astrophysical Phenomena · Physics 2018-02-07 M. D. Stritzinger , F. Taddia , C. R. Burns , M. M. Phillips , M. Bersten , C. Contreras , G. Folatelli , S. Holmbo , E. Y. Hsiao , P. Hoeflich , G. Leloudas , N. Morrell , J. Sollerman , N. B. Suntzeff

Testing for redshift evolution of Type Ia supernovae using the strongly lensed PS1-10afx at $z=1.4$

The light from distant supernovae (SNe) can be magnified through gravitational lensing when a foreground galaxy is located along the line of sight. This line-up allows for detailed studies of SNe at high redshift that otherwise would not be…

High Energy Astrophysical Phenomena · Physics 2017-07-26 T. Petrushevska , R. Amanullah , M. Bulla , M. Kromer , R. Ferretti , A. Goobar , S. Papadogiannakis