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Understanding the extreme luminosity of DES14X2fna

We present DES14X2fna, a high-luminosity, fast-declining type IIb supernova (SN IIb) at redshift $z=0.0453$, detected by the Dark Energy Survey (DES). DES14X2fna is an unusual member of its class, with a light curve showing a broad,…

High Energy Astrophysical Phenomena · Physics 2021-06-30 M. Grayling , C. P. Gutiérrez , M. Sullivan , P. Wiseman , M. Vincenzi , S. González-Gaitán , B. E. Tucker , L. Galbany , L. Kelsey , C. Lidman , E. Swann , D. Carollo , K. Glazebrook , G. F. Lewis , A. Möller , S. R. Hinton , M. Smith , S. A. Uddin , T. M. C. Abbott , M. Aguena , S. Avila , E. Bertin , S. Bhargava , D. Brooks , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , M. Costanzi , L. N. da Costa , J. De Vicente , S. Desai , H. T. Diehl , P. Doel , S. Everett , I. Ferrero , P. Fosalba , J. Frieman , J. García-Bellido , E. Gaztanaga , D. Gruen , R. A. Gruendl , J. Gschwend , G. Gutierrez , B. Hoyle , K. Kuehn , N. Kuropatkin , M. Lima , N. MacCrann , J. L. Marshall , P. Martini , R. Miquel , R. Morgan , A. Palmese , F. Paz-Chinchón , A. A. Plazas , A. K. Romer , C. Sánchez , E. Sanchez , V. Scarpine , S. Serrano , I. Sevilla-Noarbe , M. Soares-Santos , E. Suchyta , G. Tarle , D. Thomas , C. To , T. N. Varga , A. R. Walker , R. D. Wilkinson

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

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

Optical studies of a bright Type Iax supernova SN 2020rea

We present optical photometric and spectroscopic analysis of a Type Iax supernova (SN) 2020rea situated at the brighter luminosity end of Type Iax supernovae (SNe). The light curve decline rate of SN~2020rea is $\Delta$m$_{15}$(g) =…

High Energy Astrophysical Phenomena · Physics 2022-11-16 Mridweeka Singh , Kuntal Misra , Devendra K. Sahu , Bhavya Ailawadhi , Anirban Dutta , D. Andrew Howell , G. C. Anupama , K. Azalee Bostroem , Jamison Burke , Raya Dastidar , Anjasha Gangopadhyay , Daichi Hiramatsu , Hyobin Im , Curtis McCully , Craig Pellegrino , Shubham Srivastav , Rishabh Singh Teja

The bright Type IIP SN 2009bw, showing signs of interaction

We present photometry and spectroscopy of the type IIP supernova 2009bw in UGC 2890 from few days after the outburst to 241 days. The light curve of SN 2009bw during the photospheric phase is similar to that of normal SNe IIP but with…

Solar and Stellar Astrophysics · Physics 2015-06-04 C. Inserra , M. Turatto , A. Pastorello , M. L. Pumo , E. Baron , S. Benetti , E. Cappellaro , S. Taubenberger , F. Bufano , N. Elias-Rosa , L. Zampieri , A. Harutyunyan , A. S. Moskvitin , M. Nissinen , V. Stanishev , D. Y. Tsvetkov , V. P. Hentunen , V. N. Komarova , N. N. Pavlyuk , V. V. Sokolov , T. N. Sokolova

The fast evolving type Ib Supernova SN 2015dj in NGC 7371

We present the detailed optical evolution of a type Ib SN 2015dj in NGC 7371, using data spanning up to $\sim$ 170 days after discovery. SN 2015dj shares similarity in light curve shape with SN 2007gr and peaks at M$_{V}$ = $-17.37\pm$0.02…

High Energy Astrophysical Phenomena · Physics 2021-03-17 Mridweeka Singh , Kuntal Misra , Stefano Valenti , Griffin Hosseinzadeh , Andrea Pastorello , Shubham Srivastav , Anjasha Gangopadhyay , Raya Dastidar , Lina Tomasella , Iair Arcavi , Stefano Benetti , Emma Callis , Enrico Cappellaro , Nancy Elias-Rosa , D. Andrew Howell , Sang Chul Kim , Curtis McCully , Leonardo Tartaglia , Giacomo Terreran , Massimo Turatto

Positron Escape from Type Ia Supernovae

We generate bolometric light curves for a variety of type Ia supernova models at late times, simulating gamma-ray and positron transport for various assumptions about the magnetic field and ionization of the ejecta. These calculated light…

Astrophysics · Physics 2009-10-31 P. A. Milne , L. -S. The , M. D. Leising

Analyzing the Largest Spectroscopic Dataset of Hydrogen-Poor Super-Luminous Supernovae

Super-luminous supernovae (SLSNe) are tremendously luminous explosions whose power sources and progenitors are highly debated. Broad-lined SNe Ic (SNe Ic-bl) are the only type of SNe that are connected with long-duration gamma ray bursts…

High Energy Astrophysical Phenomena · Physics 2017-08-23 Yu-Qian Liu , Maryam Modjaz , Federica B. Bianco

Broad-line type Ic Supernova SN 2014ad

We present optical and ultraviolet photometry, and low resolution optical spectroscopy of the broad-line type Ic supernova SN 2014ad in the galaxy PGC 37625 (Mrk 1309), covering the evolution of the supernova during $-$5 to +87 d with…

High Energy Astrophysical Phenomena · Physics 2018-02-21 D. K. Sahu , G. C. Anupama , N. K. Chakradhari , S. Srivastav , Masaomi Tanaka , Keiichi Meada , Kenichi Nomoto

Photometry and Spectroscopy of SN 2024pxl: A Luminosity Link Among Type Iax Supernovae

We present extensive ultraviolet to optical photometric and optical to near-infrared (NIR) spectroscopic follow-up observations of the nearby intermediate-luminosity ($M_V = -16.81\pm0.19$~mag) Type Iax supernova (SN) 2024pxl in NGC 6384.…

High Energy Astrophysical Phenomena · Physics 2026-02-04 Mridweeka Singh , Lindsey A. Kwok , Saurabh W. Jha , R. Dastidar , Conor Larison , Alexei V. Filippenko , Jennifer E. Andrews , Moira Andrews , G. C. Anupama , Prasiddha Arunachalam , Katie Auchettl , Dominik BÁnhidi , Barnabas Barna , K. Azalee Bostroem , Thomas G. Brink , RÉgis Cartier , Ping Chen , Collin T. Christy , David A. Coulter , Sofia Covarrubias , Kyle W. Davis , Connor B. Dickinson , Yize Dong , Joseph Farah , Andreas FlÖrs , Ryan J. Foley , Noah Franz , Christoffer Fremling , LluÍs Galbany , Anjasha Gangopadhyay , Aarna Garg , Elinor L. Gates , Or Graur , Alexa C. Gordon , Daichi Hiramatsu , Emily Hoang , D. Andrew Howell , Brian Hsu , Joel Johansson , Arti Joshi , Lordrick A. Kahinga , Ravjit Kaur , Sahana Kumar , Piramon Kumnurdmanee , Hanindyo Kuncarayakti , Natalie Lebaron , C. Lidman , Chang Liu , Keiichi Maeda , Kate Maguire , Bailey Martin , Curtis Mccully , Darshana Mehta , Luca M. Menotti , Anne J. Metevier , A. A. Miller , Kuntal Misra , C. Tanner Murphey , Megan Newsome , Estefania Padilla Gonzalez , Kishore C. Patra , Jeniveve Pearson , Anthony L. Piro , Abigail Polin , Aravind P. Ravi , Armin Rest , Nabeel Rehemtulla , Nicolas Meza Retamal , O. M. Robinson , CÉsar Rojas-Bravo , Devendra K. Sahu , David J. Sand , Brian P. Schmidt , Steve Schulze , Michaela Schwab , Manisha Shrestha , Matthew R. Siebert , Sunil Simha , Nathan Smith , Jesper Sollerman , Shubham Srivastav , Bhagya M. Subrayan , TamÁs Szalai , Kirsty Taggart , Rishabh Singh Teja , Jacco H. Terwel , Samaporn Tinyanont , Stefano Valenti , JÓzsef VinkÓ , Aya L. Westerling , J. Craig Wheeler , Yi Yang , Weikang Zheng

Low-luminosity type IIP supernovae: SN 2005cs and SN 2020cxd as very low-energy iron core-collapse explosions

SN 2020cxd is a representative of the family of low-energy, underluminous Type IIP supernovae (SNe), whose observations and analysis were recently reported by Yang et al. (2021). Here we re-evaluate the observational data for the diagnostic…

Solar and Stellar Astrophysics · Physics 2022-06-08 Alexandra Kozyreva , Hans-Thomas Janka , Daniel Kresse , Stefan Taubenberger , Petr Baklanov

The luminous and rapidly evolving SN 2018bcc: Clues toward the origin of Type Ibn SNe from the Zwicky Transient Facility

Supernovae (SNe) Type Ibn are rapidly evolving and bright (M$_\text{R,peak}$ $\sim-19$) transients interacting with He-rich circumstellar material (CSM). SN 2018bcc, detected by the ZTF shortly after explosion, provides the best constraints…

High Energy Astrophysical Phenomena · Physics 2021-06-09 E. Karamehmetoglu , C. Fransson , J. Sollerman , L. Tartaglia , F. Taddia , K. De , C. Fremling , A. Bagdasaryan , C. Barbarino , E. C. Bellm , R. Dekany , A. M. Dugas , M. Giomi , A. Goobar , M. Graham , A. Ho , R. R. Laher , F. J. Masci , J. D. Neill , D. Perley , R. Riddle , B. Rusholme , M. T. Soumagnac

Hydrogen-poor Superluminous Supernovae With Late-time H-alpha Emission: Three Events From the Intermediate Palomar Transient Factory

We present observations of two new hydrogen-poor superluminous supernovae (SLSN-I), iPTF15esb and iPTF16bad, showing late-time H-alpha emission with line luminosities of (1-3)e+41 erg/s and velocity widths of (4000-6000) km/s. Including the…

High Energy Astrophysical Phenomena · Physics 2017-10-11 Lin Yan , R. Lunnan , D. Perley , A. Gal-Yam , O. Yaron , R. Roy , R. Quimby , J. Sollerman , C. Fremling , G. Leloudas , S. B. Cenko , P. Vreeswijk , M. L. Graham , D. A. Howell , A. De Cia , E. O. Ofek , P. Nugent , S. R. Kulkarni , G. Hosseinzadeh , F. Masci , C. McCully , U. D. Rebbapragada , P. Woźniak

Light Curve and Spectral Models for the Hypernova SN 1998bw associated with GRB980425

A refined model for the unusual Type Ic supernova 1998bw, discovered as the optical counterpart of GRB980425, is presented, and synthetic light curves and spectra are compared with the observations. The first 30 days of the light curve and…

Astrophysics · Physics 2009-10-31 Takayoshi Nakamura , Paolo A. Mazzali , Ken'ichi Nomoto , Koichi Iwamoto

SN 2018bsz: a Type I superluminous supernova with aspherical circumstellar material

We present a spectroscopic analysis of Type I superluminous supernova (SLSN-I), SN 2018bsz. While it closely resembles SLSNe-I, the multi-component H$\alpha$ line appearing at $\sim30$ d post-maximum is the most atypical. The H$\alpha$ is…

High Energy Astrophysical Phenomena · Physics 2022-10-05 M. Pursiainen , G. Leloudas , E. Paraskeva , A. Cikota , J. P. Anderson , C. R. Angus , S. Brennan , M. Bulla , E. Camacho-Iñiguez , P. Charalampopoulos , T. -W. Chen , M. Delgado Mancheño , M. Fraser , C. Frohmaier , L. Galbany , C. P. Gutiérrez , M. Gromadzki , C. Inserra , J. Maund , T. E. Müller-Bravo , S. Muñoz Torres , M. Nicholl , F. Onori , F. Patat , P. J. Pessi , R. Roy , J. Spyromilio , P. Wiseman , D. R. Young

iPTF16abc and the population of Type Ia supernovae: Comparing the photospheric, transitional and nebular phases

Key information about the progenitor system and the explosion mechanism of Type Ia supernovae (SNe~Ia) can be obtained from early observations, within a few days from explosion. iPTF16abc was discovered as a young SN~Ia with excellent early…

High Energy Astrophysical Phenomena · Physics 2018-08-15 S. Dhawan , M. Bulla , A. Goobar , R. Lunnan , J. Johansson , C. Fransson , S. R. Kulkarni , S. Papadogiannakis , A. A. Miller

Models for the Type Ic Hypernova SN 2003lw associated with GRB 031203

The Gamma-Ray Burst 031203 at a redshift z=0.1055 revealed a highly reddened Type Ic Supernova, SN 2003lw, in its afterglow light. This is the third well established case of a link between a long-duration GRB and a type Ic SN. The SN light…

Astrophysics · Physics 2009-11-11 Paolo A. Mazzali , Jinsong Deng , Elena Pian , Daniele Malesani , Nozomu Tominaga , Keiichi Maeda , Ken'ichi Nomoto , Guido Chincarini , Stefano Covino , Massimo Della Valle , Dino Fugazza , Gianpiero Tagliaferri , Avishay Gal-Yam

DES14X3taz: A Type I Superluminous Supernova Showing a Luminous, Rapidly Cooling Initial Pre-Peak Bump

We present DES14X3taz, a new hydrogen-poor super luminous supernova (SLSN-I) discovered by the Dark Energy Survey (DES) supernova program, with additional photometric data provided by the Survey Using DECam for Superluminous Supernovae…

Solar and Stellar Astrophysics · Physics 2016-02-17 M. Smith , M. Sullivan , C. B. D'Andrea , F. J. Castander , R. Casas , S. Prajs , A. Papadopoulos , R. C. Nichol , N. V. Karpenka , S. R. Bernard , P. Brown , R. Cartier , J. Cooke , C. Curtin , T. M. Davis , D. A. Finley , R. J. Foley , A. Gal-Yam , D. A. Goldstein , S. González-Gaitán , R. R. Gupta , D. A. Howell , C. Inserra , R. Kessler , C. Lidman , J. Marriner , P. Nugent , T. A. Pritchard , M. Sako , S. Smartt , R. C. Smith , H. Spinka , R. C. Thomas , R. C. Wolf , A. Zenteno , T. M. C. Abbott , A. Benoit-Lévy , E. Bertin , D. Brooks , E. Buckley-Geer , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , M. Crocce , C. E. Cunha , L. N. da Costa , S. Desai , H. T. Diehl , P. Doel , J. Estrada , A. E. Evrard , B. Flaugher , P. Fosalba , J. Frieman , D. W. Gerdes , D. Gruen , R. A. Gruendl , D. J. James , K. Kuehn , N. Kuropatkin , O. Lahav , T. S. Li , J. L. Marshall , P. Martini , C. J. Miller , R. Miquel , B. Nord , R. Ogando , A. A. Plazas , K. Reil , A. K. Romer , A. Roodman , E. S. Rykoff , E. Sanchez , V. Scarpine , M. Schubnell , I. Sevilla-Noarbe , M. Soares-Santos , F. Sobreira , E. Suchyta , M. E. C. Swanson , G. Tarle , A. R. Walker , W. Wester

SN 2021lwz: Another Exotic Luminous and Fast Evolving Optical Stripped Envelope Supernova ?

Current large-scale, high-cadence surveys, such as the ZTF, provide detections of new and rare types of transients and supernovae whose physical origins are not well understood. We investigate the nature of SN 2021lwz at a redshift…

High Energy Astrophysical Phenomena · Physics 2026-04-07 F. Poidevin , S. L. West , C. M. B. Omand , R. Könyves-Tóth , S. Schulze , L. Yan , T. Kangas , I. Pérez-Fournon , S. Geier , J. Sollerman , P. J. Pessi , C. M. Gutiérrez , T. -W. Chen , K-Ryan Hinds , R. Marques-Chaves , R. Shirley , C. Jimenez Angel , R. Lunnan , D. A. Perley , N. Sarin , Y. Yao , R. Dekany , J. Purdum , A. Wold , R. R. Laher , M. J. Graham , M. M. Kasliwal , T. Jegou Du Laz

Bolometric Light Curves for 33 Type II-Plateau Supernovae

Using data of three well-observed type-II plateau supernovae (SNe II-P), SNe 1987A, 1999em and 2003hn; and two atmosphere models by Eastman et al. (1996) and Dessart & Hillier (2005b) we derive calibrations for bolometric corrections and…

Solar and Stellar Astrophysics · Physics 2009-07-24 Melina C. Bersten , Mario Hamuy