Related papers: SNEMO: Improved Empirical Models for Type Ia Super…

SALT: a Spectral Adaptive Light curve Template for Type Ia Supernovae

We present a new method to parameterize Type Ia Supernovae (SN Ia) multi-color light curves. The method was developed in order to analyze the large number of SN Ia multi-color light curves measured in current high-redshift projects. The…

Astrophysics · Physics 2010-01-18 J. Guy , P. Astier , S. Nobili , N. Regnault , R. Pain

Strongly lensed type Ia supernovae as a precise late-universe probe of measuring the Hubble constant and cosmic curvature

Strongly lensed type Ia supernovae (SNe Ia) are expected to have some advantages in measuring time delays of multiple images, and so they have a great potential to be developed into a powerful late-universe cosmological probe. In this…

Cosmology and Nongalactic Astrophysics · Physics 2022-07-26 Jing-Zhao Qi , Yu Cui , Wei-Hong Hu , Jing-Fei Zhang , Jing-Lei Cui , Xin Zhang

Time Dilation from Spectral Feature Age Measurements of Type Ia Supernovae

We have developed a quantitative, empirical method for estimating the age of Type Ia supernovae (SNe Ia) from a single spectral epoch. The technique examines the goodness of fit of spectral features as a function of the temporal evolution…

Astrophysics · Physics 2009-10-30 A. G. Riess , A. V. Filippenko , D. C. Leonard , B. P. Schmidt , N. Suntzeff , M. M. Phillips , R. Schommer , A. Clocchiatti , R. P. Kirshner , P. Garnavich , P. Challis , B. Leibundgut , J. Spyromilio , R. C. Smith

On the gamma-ray emission of Type Ia Supernovae

A multi-dimension, time-dependent Monte Carlo code is used to compute sample gamma-ray spectra to explore whether unambiguous constraints could be obtained from gamma-ray observations of Type Ia supernovae. Both spherical and aspherical…

Astrophysics · Physics 2009-11-13 S. A. Sim , P. A. Mazzali

Evidence of Environmental Dependencies of Type Ia Supernovae from the Nearby Supernova Factory indicated by Local H{\alpha}

(Abridged) We study the host galaxy regions in close proximity to Type Ia supernovae (SNe Ia) to analyze relations between the properties of SN Ia events and environments most similar to where their progenitors formed. We focus on local…

Cosmology and Nongalactic Astrophysics · Physics 2013-12-09 M. Rigault , Y. Copin , G. Aldering , P. Antilogus , C. Aragon , S. Bailey , C. Baltay , S. Bongard , C. Buton , A. Canto , F. Cellier-Holzem , M. Childress , N. Chotard , H. K. Fakhouri , U. Feindt , M. Fleury , E. Gangler , P. Greskovic , J. Guy , A. G. Kim , M. Kowalski , S. Lombardo , J. Nordin , P. Nugent , R. Pain , E. Pécontal , R. Pereira , S. Perlmutter , D. Rabinowitz , K. Runge , C. Saunders , R. Scalzo , G. Smadja , C. Tao , R. C. Thomas , B. A. Weaver

Detecting strongly-lensed type Ia supernovae with LSST

Strongly-lensed supernovae are rare and valuable probes of cosmology and astrophysics. Upcoming wide-field time-domain surveys, such as the Vera C. Rubin Observatory's Legacy Survey of Space and Time (LSST), are expected to discover an…

Cosmology and Nongalactic Astrophysics · Physics 2024-05-17 Nikki Arendse , Suhail Dhawan , Ana Sagués Carracedo , Hiranya V. Peiris , Ariel Goobar , Radek Wojtak , Catarina Alves , Rahul Biswas , Simon Huber , Simon Birrer , The LSST Dark Energy Science Collaboration

Spectroscopic analysis of the strongly lensed SN~Encore: Constraints on cosmic evolution of Type Ia supernovae

Strong gravitational lensing magnifies the light from a background source, allowing us to study these sources in detail. Here, we study the spectra of a $z = 1.95$ lensed Type Ia supernova SN~Encore for its brightest Image A, taken 39 days…

High Energy Astrophysical Phenomena · Physics 2024-07-24 S. Dhawan , J. D. R. Pierel , M. Gu , A. B. Newman , C. Larison , M. Siebert , T. Petrushevska , F. Poidevin , S. W. Jha , W. Chen , Richard S. Ellis , B. Frye , J. Hjorth , Anton M. Koekemoer , I. Pérez-Fournon , A. Rest , T. Treu , R. A. Windhorst , Y. Zenati

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

How do Type Ia Supernova Nebular Spectra Depend on Explosion Properties? Insights from Systematic non-LTE Modeling

We present a radiative transfer code to model the nebular phase spectra of supernovae (SNe) in non-local thermodynamic equilibrium (NLTE). We apply it to a systematic study of Type Ia SNe using parameterized 1D models and show how nebular…

High Energy Astrophysical Phenomena · Physics 2017-08-30 János Botyánszki , Daniel Kasen

The Dark Energy Survey Supernova Program: Cosmological biases from supernova photometric classification

Cosmological analyses of samples of photometrically-identified Type Ia supernovae (SNe Ia) depend on understanding the effects of 'contamination' from core-collapse and peculiar SN Ia events. We employ a rigorous analysis on…

Cosmology and Nongalactic Astrophysics · Physics 2022-06-15 M. Vincenzi , M. Sullivan , A. Möller , P. Armstrong , B. A. Bassett , D. Brout , D. Carollo , A. Carr , T. M. Davis , C. Frohmaier , L. Galbany , K. Glazebrook , O. Graur , L. Kelsey , R. Kessler , E. Kovacs , G. F. Lewis , C. Lidman , U. Malik , R. C. Nichol , B. Popovic , M. Sako , D. Scolnic , M. Smith , G. Taylor , B. E. Tucker , P. Wiseman , M. Aguena , S. Allam , J. Annis , J. Asorey , D. Bacon , E. Bertin , D. Brooks , D. L. Burke , A. Carnero Rosell , J. Carretero , F. J. Castander , M. Costanzi , L. N. da Costa , M. E. S. Pereira , J. De Vicente , S. Desai , H. T. Diehl , P. Doel , S. Everett , I. Ferrero , B. Flaugher , P. Fosalba , J. Frieman , J. García-Bellido , D. W. Gerdes , D. Gruen , G. Gutierrez , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. J. James , K. Kuehn , N. Kuropatkin , O. Lahav , T. S. Li , M. Lima , M. A. G. Maia , J. L. Marshall , R. Miquel , R. Morgan , R. L. C. Ogando , A. Palmese , F. Paz-Chinchón , A. Pieres , A. A. Plazas Malagón , K. Reil , A. Roodman , E. Sanchez , M. Schubnell , S. Serrano , I. Sevilla-Noarbe , E. Suchyta , G. Tarle , C. To , T. N. Varga , J. Weller , R. D. Wilkinson

Ultraviolet Diversity of Type Ia Supernovae

Ultraviolet (UV) observations of Type Ia supernovae (SNe Ia) probe the outermost layers of the explosion, and UV spectra of SNe Ia are expected to be extremely sensitive to differences in progenitor composition and the details of the…

High Energy Astrophysical Phenomena · Physics 2016-07-27 Ryan J. Foley , Yen-Chen Pan , P. Brown , A. V. Filippenko , O. D. Fox , W. Hillebrandt , R. P. Kirshner , G. H. Marion , P. A. Milne , J. T. Parrent , G. Pignata , M. D. Stritzinger

The Rate of Type Ia Supernovae at High Redshift

We derive the rates of Type Ia supernovae (SNIa) over a wide range of redshifts using a complete sample from the IfA Deep Survey. This sample of more than 100 SNIa is the largest set ever collected from a single survey, and therefore…

Astrophysics · Physics 2009-11-13 Brian J. Barris , John L. Tonry

The Twins Embedding of Type Ia Supernovae II: Improving Cosmological Distance Estimates

We show how spectra of Type Ia supernovae (SNe Ia) at maximum light can be used to improve cosmological distance estimates. In a companion article, we used manifold learning to build a three-dimensional parameterization of the intrinsic…

Cosmology and Nongalactic Astrophysics · Physics 2021-05-12 K. Boone , G. Aldering , P. Antilogus , C. Aragon , S. Bailey , C. Baltay , S. Bongard , C. Buton , Y. Copin , S. Dixon , D. Fouchez , E. Gangler , R. Gupta , B. Hayden , W. Hillebrandt , A. G. Kim , M. Kowalski , D. Küsters , P. -F. Léget , F. Mondon , J. Nordin , R. Pain , E. Pecontal , R. Pereira , S. Perlmutter , K. A. Ponder , D. Rabinowitz , M. Rigault , D. Rubin , K. Runge , C. Saunders , G. Smadja , N. Suzuki , C. Tao , S. Taubenberger , R. C. Thomas , M. Vincenzi

First Cosmology Results using Type Ia Supernova from the Dark Energy Survey: Simulations to Correct Supernova Distance Biases

We describe catalog-level simulations of Type Ia supernova (SN~Ia) light curves in the Dark Energy Survey Supernova Program (DES-SN), and in low-redshift samples from the Center for Astrophysics (CfA) and the Carnegie Supernova Project…

Cosmology and Nongalactic Astrophysics · Physics 2019-05-13 R. Kessler , D. Brout , C. B. D'Andrea , T. M. Davis , S. R. Hinton , A. G. Kim , J. Lasker , C. Lidman , E. Macaulay , A. Möller , M. Sako , D. Scolnic , M. Smith , M. Sullivan , B. Zhang , P. Andersen , J. Asorey , A. Avelino , J. Calcino , D. Carollo , P. Challis , M. Childress , A. Clocchiatti , S. Crawford , A. V. Filippenko , R. J. Foley , K. Glazebrook , J. K. Hoormann , E. Kasai , R. P. Kirshner , G. F. Lewis , K. S. Mandel , M. March , E. Morganson , D. Muthukrishna , P. Nugent , Y. -C. Pan , N. E. Sommer , E. Swann , R. C. Thomas , B. E. Tucker , S. A. Uddin , T. M. C. Abbott , S. Allam , J. Annis , S. Avila , M. Banerji , K. Bechtol , E. Bertin , D. Brooks , E. Buckley-Geer , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , M. Crocce , L. N. da Costa , C. Davis , J. De Vicente , 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. Gruen , R. A. Gruendl , G. Gutierrez , W. G. Hartley , D. L. Hollowood , K. Honscheid , D. J. James , M. W. G. Johnson , M. D. Johnson , E. Krause , K. Kuehn , N. Kuropatkin , O. Lahav , T. S. Li , M. Lima , J. L. Marshall , P. Martini , F. Menanteau , C. J. Miller , R. Miquel , B. Nord , A. A. Plazas , A. Roodman , E. Sanchez , V. Scarpine , R. Schindler , M. Schubnell , S. Serrano , I. Sevilla-Noarbe , M. Soares-Santos , F. Sobreira , E. Suchyta , G. Tarle , D. Thomas , A. R. Walker , Y. Zhang

HOLISMOKES -- III. Achromatic Phase of Strongly Lensed Type Ia Supernovae

To use strongly lensed Type Ia supernovae (LSNe Ia) for cosmology, a time-delay measurement between the multiple supernova (SN) images is necessary. The sharp rise and decline of SN Ia light curves make them promising for measuring time…

High Energy Astrophysical Phenomena · Physics 2021-02-17 S. Huber , S. H. Suyu , U. M. Noebauer , J. H. H. Chan , M. Kromer , S. A. Sim , D. Sluse , S. Taubenberger

Detonating Failed Deflagration Model of Thermonuclear Supernovae II. Comparison to Observations

We develop and demonstrate the methodology of testing multi-dimensional supernova models against observations by studying the properties of one example of the detonation from failed deflagration (DFD) explosion model of thermonuclear…

Astrophysics · Physics 2011-02-11 Daniel Kasen , Tomasz Plewa

The Search for Stable Nickel: Investigating the Origins of Type Ia Supernovae with Late-time NIR Spectroscopy from the Carnegie Supernova Project-II

Producing stable $^{58}$Ni in Type Ia supernovae (SNe Ia) requires sufficiently high density conditions that are not predicted for all origin scenarios, so examining the distribution of $^{58}$Ni using the NIR [Ni II] 1.939 $\mu$m line may…

High Energy Astrophysical Phenomena · Physics 2026-03-27 Sahana Kumar , Eric Y. Hsiao , Christopher Ashall , Peter Hoeflich , Eddie Baron , Mark M. Phillips , Maryam Modjaz , Abigail Polin , Nidia Morrell , Christopher R. Burns , Jing Lu , Melissa Shahbandeh , Lindsey A. Kwok , Lluis Galbany , Maximilian D. Stritzinger , Carlos Contreras , James M. DerKacy , T Hoover , Syed Uddin , Saurabh W. Jha , Huangfei Xiao , Kevin Krisciunas , Nicholas B. Suntzeff

Spectrophotometric time series of SN 2011fe from the Nearby Supernova Factory

We present 32 epochs of optical (3300-9700 \AA) spectrophotometric observations of the nearby quintessential "normal" type Ia supernova (SN Ia) SN 2011fe in the galaxy M101, extending from -15 to +97 d with respect to B-band maximum,…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 R. Pereira , R. C. Thomas , G. Aldering , P. Antilogus , C. Baltay , S. Benitez-Herrera , S. Bongard , C. Buton , A. Canto , F. Cellier-Holzem , J. Chen , M. Childress , N. Chotard , Y. Copin , H. K. Fakhouri , M. Fink , D. Fouchez , E. Gangler , J. Guy , W. Hillebrandt , E. Y. Hsiao , M. Kerschhaggl , M. Kowalski , M. Kromer , J. Nordin , P. Nugent , K. Paech , R. Pain , E. Pécontal , S. Perlmutter , D. Rabinowitz , M. Rigault , K. Runge , C. Saunders , G. Smadja , C. Tao , S. Taubenberger , A. Tilquin , C. Wu

Refined numerical models for multidimensional Type Ia supernova simulations

Following up on earlier work on this topic (Reinecke et al. 1999, A&A 347, pp. 724 and 739), we present an improved set of numerical models for simulations of white dwarfs exploding as Type Ia supernovae (SNe Ia). Two-dimensional…

Astrophysics · Physics 2009-11-07 M. Reinecke , W. Hillebrandt , J. C. Niemeyer

Characterization of Supernovae Based on the Spectral-Temporal Energy Distribution: Possible two SN Ib Subtypes

A quantitative data-driven comparison among supernovae (SNe) based on their spectral time series combined with multi-band photometry is presented. We use an unsupervised Random Forest algorithm as a metric on a set of 82 well-documented SNe…

High Energy Astrophysical Phenomena · Physics 2022-05-03 Ofek Bengyat , Avishay Gal-Yam