Related papers: Defining Photometric Peculiar Type Ia Supernovae

A Luminous Peculiar Type Ia Supernova SN 2011hr: More Like SN 1991T or SN 2007if?

Photometric and spectroscopic observations of a slowly declining, luminous Type Ia supernova (SN Ia) SN 2011hr in the starburst galaxy NGC 2691 are presented. SN 2011hr is found to peak at $M_{B}=-19.84 \pm 0.40\,\rm{mag}$, with a…

Solar and Stellar Astrophysics · Physics 2016-02-03 Jujia Zhang , Xiaofeng Wang , Michele Sasdelli , Tianmeng Zhang , Zhengweei Liu , Paolo A. Mazzali , Xiangcun Meng , Keiichi Maeda , Juncheng Chen , Fang Huang , Xulin Zhao , Kaicheng Zhang , Qian Zhai , Elena Pian , Bo Wang , Liang Chang , Weimin Yi , Chuan-Jun Wang , Xueli Wang , Yuxin Xin , Jianguo Wang , Baoli Lun , Xiangming Zheng , Xiliang Zhang , Yufeng Fan , Jinming Bai

ASASSN-15pz: Revealing Significant Photometric Diversity among 2009dc-like, Peculiar SNe Ia

We report comprehensive multi-wavelength observations of a peculiar Type Ia-like supernova ("SN Ia-pec") ASASSN-15pz. ASASSN-15pz is a spectroscopic "twin" of SN 2009dc, a so-called "Super-Chandrasekhar-mass" SN, throughout its evolution,…

High Energy Astrophysical Phenomena · Physics 2019-07-31 Ping Chen , Subo Dong , Boaz Katz , C. S. Kochanek , Juna A. Kollmeier , K. Maguire , M. M. Phillips , J. L. Prieto , B. J. Shappee , M. D. Stritzinger , Subhash Bose , Peter J. Brown , T. W. -S. Holoien , L. Galbany , Peter A. Milne , Nidia Morrell , Anthony L. Piro , K. Z. Stanek , Todd A. Thompson , D. R. Young

ZTF SN Ia DR2: Overview

We present the first homogeneous release of several thousand Type Ia supernovae (SNe Ia), all having spectroscopic classification, and spectroscopic redshifts for half the sample. This release, named the "DR2", contains 3628 nearby (z <…

Cosmology and Nongalactic Astrophysics · Physics 2024-12-04 Mickael Rigault , Mathew Smith , Ariel Goobar , Kate Maguire , Georgios Dimitriadis , Umut Burgaz , Suhail Dhawan , Jesper Sollerman , Nicolas Regnault , Marek Kowalski , Melissa Amenouche , Marie Aubert , Chloé Barjou-Delayre , Julian Bautista , Josh S. Bloom , Bastien Carreres , Tracy X. Chen , Yannick Copin , Maxime Deckers , Dominique Fouchez , Christoffer Fremling , Lluis Galbany , Madeleine Ginolin , Matthew Graham , Mancy M. Kasliwal , W. D'Arcy Kenworthy , Young-Lo Kim , Dylan Kuhn , Frank F. Masci , Tomas Müller-Bravo , Adam Miller , Joel Johansson , Jakob Nordin , Peter Nugent , Igor Andreoni , Eric Bellm , Marc Betoule , Mahmoud Osman , Dan Perley , Brodie Popovic , Philippe Rosnet , Damiano Rosselli , Florian Ruppin , Robert Senzel , Ben Rusholme , Tassilo Schweyer , Jacco H. Terwel , Alice Townsend , Andy Tzanidakis , Avery Wold , Josiah Purdum , Yu-Jing Qin , Benjamin Racine , Simeon Reusch , Reed Riddle , Lin Yan

Observations of the Very Young Type Ia Supernova 2019np with Early-excess Emission

Early-time radiative signals from type Ia supernovae (SNe Ia) can provide important constraints on the explosion mechanism and the progenitor system. We present observations and analysis of SN 2019np, a nearby SN Ia discovered within 1-2…

High Energy Astrophysical Phenomena · Physics 2022-06-08 Hanna Sai , Xiaofeng Wang , Nancy Elias-Rosa , Yi Yang , Jujia Zhang , Weili Lin , Jun Mo , Anthony L. Piro , Xiangyun Zeng , Reguitti Andrea , Peter Brown , Christopher R. Burns , Yongzhi Cai , Achille Fiore , Eric Y. Hsiao , Jordi Isern , K. Itagaki , Wenxiong Li , Zhitong Li , Priscila J. Pessi , M. M. Phillips , Stefan Schuldt , Melissa Shahbandeh , Maximilian D. Stritzinger , Lina Tomasella , Christian Vogl , Bo Wang , Lingzhi Wang , Chengyuan Wu , Sheng Yang , Jicheng Zhang , Tianmeng Zhang , Xinghan Zhang

Not Color Blind: Using Multiband Photometry to Classify Supernovae

Large numbers of supernovae (SNe) have been discovered in recent years, and many more will be found in the near future. Once discovered, further study of a SN and its possible use as an astronomical tool (e.g., as a distance estimator)…

Astrophysics · Physics 2009-11-07 Dovi Poznanski , Avishay Gal-Yam , Dan Maoz , Alexei V. Filippenko , Douglas C. Leonard , Thomas Matheson

Redshift-Independent Distances to Type Ia Supernovae

We describe a procedure for accurately determining luminosity distances to Type Ia supernovae (SNe Ia) without knowledge of redshift. This procedure, which may be used as an extension of any of the various distance determination methods…

Astrophysics · Physics 2009-11-10 Brian J. Barris , John L. Tonry

Ground-based and JWST Observations of SN 2022pul: I. Unusual Signatures of Carbon, Oxygen, and Circumstellar Interaction in a Peculiar Type Ia Supernova

Nebular-phase observations of peculiar Type Ia supernovae (SNe Ia) provide important constraints on progenitor scenarios and explosion dynamics for both these rare SNe and the more common, cosmologically useful SNe Ia. We present…

High Energy Astrophysical Phenomena · Physics 2023-08-25 Matthew R. Siebert , Lindsey A. Kwok , Joel Johansson , Saurabh W. Jha , Stéphane Blondin , Luc Dessart , Ryan J. Foley , D. John Hillier , Conor Larison , Rüdiger Pakmor , Tea Temim , Jennifer E. Andrews , Katie Auchettl , Carles Badenes , Barnabas Barna , K. Azalee Bostroem , Max J. Brenner Newman , Thomas G. Brink , María José Bustamante-Rosell , Yssavo Camacho-Neves , Alejandro Clocchiatti , David A. Coulter , Kyle W. Davis , Maxime Deckers , Georgios Dimitriadis , Yize Dong , Joseph Farah , Alexei V. Filippenko , Andreas Flörs , Ori D. Fox , Peter Garnavich , Estefania Padilla Gonzalez , Or Graur , Franz-Josef Hambsch , Griffin Hosseinzadeh , D. Andrew Howell , John P. Hughes , Wolfgang E. Kerzendorf , Xavier K. Le Saux , Keiichi Maeda , Kate Maguire , Curtis McCully , Cassidy Mihalenko , Megan Newsome , John T. O'Brien , Jeniveve Pearson , Craig Pellegrino , Justin D. R. Pierel , Abigail Polin , Armin Rest , César Rojas-Bravo , David J. Sand , Michaela Schwab , Melissa Shahbandeh , Manisha Shrestha , Nathan Smith , Louis-Gregory Strolger , Tamás Szalai , Kirsty Taggart , Giacomo Terreran , Jacco H. Terwel , Samaporn Tinyanont , Stefano Valenti , József Vinkó , J. Craig Wheeler , Yi Yang , Weikang Zheng , Chris Ashall , James M. Derkacy , Lluís Galbany , Peter Hoeflich , Eric Hsiao , Thomas De Jaeger , Jing Lu , Justyn Maund , Kyle Medler , Nidia Morrell , Benjamin J. Shappee , Maximilian Stritzinger , Nicholas Suntzeff , Michael Tucker , Lifan Wang

Type Ia Supernova models: latest developments

Supernovae of type Ia (SNe Ia) are very important for cosmography. To exclude systematic effects in linking the observed light of distant SNe Ia to the parameters of cosmological models, one has to understand the nature of supernova…

Astrophysics · Physics 2009-11-07 S. Blinnikov , E. Sorokina

Supernova Photometric Classification Pipelines Trained on Spectroscopically Classified Supernovae from the Pan-STARRS1 Medium-Deep Survey

Photometric classification of supernovae (SNe) is imperative as recent and upcoming optical time-domain surveys, such as the Large Synoptic Survey Telescope (LSST), overwhelm the available resources for spectrosopic follow-up. Here we…

High Energy Astrophysical Phenomena · Physics 2019-10-28 V. A. Villar , E. Berger , G. Miller , R. Chornock , A. Rest , D. O. Jones , M. R. Drout , R. J. Foley , R. Kirshner , R. Lunnan , E. Magnier , D. Milisavljevic , N. Sanders , D. Scolnic

On the Spectrum and Nature of the Peculiar Type Ia Supernova 1991T

A parameterized supernova synthetic-spectrum code is used to study line identifications in the photospheric-phase spectra of the peculiar Type Ia SN 1991T, and to extract some constraints on the composition structure of the ejected matter.…

Astrophysics · Physics 2009-10-30 A. Fisher , D. Branch , K. Hatano , E. Baron

Photometric and Spectroscopic Properties of Type Ia Supernova 2018oh with Early Excess Emission from the $Kepler$ 2 Observations

Supernova (SN) 2018oh (ASASSN-18bt) is the first spectroscopically-confirmed type Ia supernova (SN Ia) observed in the $Kepler$ field. The $Kepler$ data revealed an excess emission in its early light curve, allowing to place interesting…

Solar and Stellar Astrophysics · Physics 2019-01-09 W. Li , X. Wang , J. Vinkó , J. Mo , G. Hosseinzadeh , D. J. Sand , J. Zhang , H. Lin , T. Zhang , L. Wang , J. Zhang , Z. Chen , D. Xiang , L. Rui , F. Huang , X. Li , X. Zhang , L. Li , E. Baron , J. M. Derkacy , X. Zhao , H. Sai , K. Zhang , L. Wang , D. A. Howell , C. McCully , I. Arcavi , S. Valenti , D. Hiramatsu , J. Burke , A. Rest , P. Garnavich , B. E. Tucker , G. Narayan , E. Shaya , S. Margheim , A. Zenteno , A. Villar , G. Dimitriadis , R. J. Foley , Y. -C. Pan , D. A. Coulter , O. D. Fox , S. W. Jha , D. O. Jones , D. N. Kasen , C. D. Kilpatrick , A. L. Piro , A. G. Riess , C. Rojas-Bravo , B. J. Shappee , T. W. -S. Holoien , K. Z. Stanek , M. R. Drout , K. Auchettl , C. S. Kochanek , J. S. Brown , S. Bose , D. Bersier , J. Brimacombe , P. Chen , S. Dong , S. Holmbo , J. A. Muñoz , R. L. Mutel , R. S. Post , J. L. Prieto , J. Shields , D. Tallon , T. A. Thompson , P. J. Vallely , S. Villanueva , S. J. Smartt , K. W. Smith , K. C. Chambers , H. A. Flewelling , M. E. Huber , E. A. Magnier , C. Z. Waters , A. S. B. Schultz , J. Bulger , T. B. Lowe , M. Willman , K. Sárneczky , A. Pál , J. C. Wheeler , A. Bódi , Zs. Bognár , B. Csák , B. Cseh , G. Csörnyei , O. Hanyecz , B. Ignácz , Cs. Kalup , R. Könyves-Tóth , L. Kriskovics , A. Ordasi , I. Rajmon , A. Sódor , R. Szabó , R. Szakáts , G. Zsidi , P. Milne , J. E. Andrews , N. Smith , C. Bilinski , P. J. Brown , J. Nordin , S. C. Williams , L. Galbany , J. Palmerio , I. M. Hook , C. Inserra , K. Maguire , Régis Cartier , A. Razza , C. P. Gutiérrez , J. J. Hermes , J. S. Reding , B. C. Kaiser , J. L. Tonry , A. N. Heinze , L. Denneau , H. Weiland , B. Stalder , G. Barentsen , J. Dotson , T. Barclay , M. Gully-Santiago , C. Hedges , A. M. Cody , S. Howell , J. Coughlin , J. E. Van Cleve , J. Vinícius de Miranda Cardoso , K. A. Larson , K. M. McCalmont-Everton , C. A. Peterson , S. E. Ross , L. H. Reedy , D. Osborne , C. McGinn , L. Kohnert , L. Migliorini , A. Wheaton , B. Spencer , C. Labonde , G. Castillo , G. Beerman , K. Steward , M. Hanley , R. Larsen , R. Gangopadhyay , R. Kloetzel , T. Weschler , V. Nystrom , J. Moffatt , M. Redick , K. Griest , M. Packard , M. Muszynski , J. Kampmeier , R. Bjella , S. Flynn , B. Elsaesser

Characterising the Standardisation Properties of Type Ia Supernovae in the z band with Hierarchical Bayesian Modelling

Type Ia supernovae (SNe Ia) are standardisable candles: their peak magnitudes can be corrected for correlations between light curve properties and their luminosities to precisely estimate distances. Understanding SN Ia standardisation…

Cosmology and Nongalactic Astrophysics · Physics 2026-01-19 Erin E. Hayes , Suhail Dhawan , Kaisey S. Mandel , David O. Jones , Ryan J. Foley , Stephen Thorp , Matthew Grayling , Sam M. Ward , Aaron Do , Danial Langeroodi , Nicholas Earl , Kaylee M. de Soto , Gautham Narayan , Katie Auchettl , Thomas de Boer , Kenneth C. Chambers , David A. Coulter , Christa Gall , Hua Gao , Luca Izzo , Chien-Cheng Lin , Eugene A. Magnier , Armin Rest , Qinan Wang

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…

Cosmology and Nongalactic Astrophysics · Physics 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

Spectral properties of Type Ia supernovae up to z~0.3

Aims: Spectroscopic observations of Type Ia supernovae obtained at the New Technology Telescope (NTT) and the Nordic Optical Telescope (NOT), in conjunction with the SDSS-II Supernova Survey, are analysed. We use spectral indicators…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 J. Nordin , L. Ostman , A. Goobar , R. Amanullah , R. C. Nichol , M. Smith , J. Sollerman , B. A. Bassett , J. Frieman , P. M. Garnavich , G. Leloudas , M. Sako , D. P. Schneider

Direct Analysis of Spectra of the Peculiar Type Ia Supernova 2000cx

The Type Ia SN 2000cx exhibited multiple peculiarities, including a lopsided B-band light-curve peak that does not conform to current methods for using shapes of light curves to standardize SN Ia luminosities. We use the parameterized…

Astrophysics · Physics 2009-11-10 D. Branch , R. C. Thomas , E. Baron , D. Kasen , K. Hatano , K. Nomoto , A. V. Filippenko , W. Li , R. J. Rudy

Search For Type Ia Supernova NUV-Optical Subclasses

In response to a recently reported observation of evidence for two classes of Type Ia Supernovae (SNe Ia) distinguished by their brightness in the rest-frame near ultraviolet (NUV), we search for the phenomenon in publicly available…

Cosmology and Nongalactic Astrophysics · Physics 2017-01-16 David Cinabro , Daniel Scolnic , Richard Kessler , Ashley Li , Jake Miller

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

Supernova type Ia luminosities, their dependence on second parameters, and the value of H_0

A sample of 35 SNe Ia with good to excellent photometry in B and V, minimum internal absorption, and 1200 < v < \approx 30000 km/s is compiled from the literature. As far as their spectra are known they are all Branch-normal. For 29 of the…

Astrophysics · Physics 2009-02-16 B. R. Parodi , A. Saha , A. Sandage , G. A. Tammann

A Systematic Study of Ia-CSM Supernovae from the ZTF Bright Transient Survey

Among the supernovae (SNe) that show strong interaction with the circumstellar medium, there is a rare subclass of Type Ia supernovae, SNe Ia-CSM, that show strong narrow hydrogen emission lines much like SNe IIn but on top of a diluted…

High Energy Astrophysical Phenomena · Physics 2023-05-17 Yashvi Sharma , Jesper Sollerman , Christoffer Fremling , Shrinivas R. Kulkarni , Kishalay De , Ido Irani , Steve Schulze , Nora Linn Strotjohann , Avishay Gal-Yam , Kate Maguire , Daniel A. Perley , Eric C. Bellm , Erik C. Kool , Thomas Brink , Rachel Bruch , Maxime Deckers , Richard Dekany , Alison Dugas , Samantha Goldwasser , Matthew J. Graham , Melissa L. Graham , Steven L. Groom , Matt Hankins , Jacob Jencson , Joel P. Johansson , Viraj Karambelkar , Mansi M. Kasliwal , Frank J. Masci , Michael S. Medford , James D. Neill , Guy Nir , Reed L. Riddle , Mickael Rigault , Tassilo Schweyer , Jacco H. Terwel , Lin Yan , Yi Yang , Yuhan Yao

Results from the Supernova Photometric Classification Challenge

We report results from the Supernova Photometric Classification Challenge (SNPCC), a publicly released mix of simulated supernovae (SNe), with types (Ia, Ibc, and II) selected in proportion to their expected rate. The simulation was…

Cosmology and Nongalactic Astrophysics · Physics 2011-06-03 Richard Kessler , Bruce Bassett , Pavel Belov , Vasudha Bhatnagar , Heather Campbell , Alex Conley , Joshua A. Frieman , Alexandre Glazov , Santiago Gonzalez-Gaitan , Renee Hlozek , Saurabh Jha , Stephen Kuhlmann , Martin Kunz , Hubert Lampeitl , Ashish Mahabal , James Newling , Robert C. Nichol , David Parkinson , Ninan Sajeeth Philip , Dovi Poznanski , Joseph W. Richards , Steven A. Rodney , Masao Sako , Donald P. Schneider , Mathew Smith , Maximilian Stritzinger , Melvin Varughese