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Helium superluminous SN 2021bnw : an explosion of a massive star with a pre-outburst

Superluminous supernovae (SLSNe) remain an intriguing topic in supernova (SN) transient astronomy. While the majority of SLSNe are shown to be explained by energy streaming from the newly born magnetar, there are others which are powered by…

High Energy Astrophysical Phenomena · Physics 2026-05-05 Alexandra Kozyreva , Matteo Bugli , Alexey Mironov , Petr Baklanov

SN 2009kf : a UV bright type IIP supernova discovered with Pan-STARRS 1 and GALEX

We present photometric and spectroscopic observations of a luminous type IIP Supernova 2009kf discovered by the Pan-STARRS 1 (PS1) survey and detected also by GALEX. The SN shows a plateau in its optical and bolometric light curves, lasting…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 M. T. Botticella , C. Trundle , A. Pastorello , S. Rodney , A. Rest , S. Gezari , S. J. Smartt , G. Narayan , M. E. Huber , J. L. Tonry , D. Young , K. Smith , F. Bresolin , S. Valenti , R. Kotak , S. Mattila , E. Kankare , W. M. Wood-Vasey , A. Riess , J. D. Neill , K. Forster , D. C. Martin , C. W. Stubbs , W. S. Burgett , K. C. Chambers , T. Dombeck , H. Flewelling , T. Grav , J. N. Heasley , K. W. Hodapp , N. Kaiser , R. Kudritzki , G. Luppino , R. H. Lupton , E. A. Magnier , D. G. Monet , J. S. Morgan , P. M. Onaka , P. A. Price , P. H. Rhoads , W. A. Siegmund , W. E. Sweeney , R. J. Wainscoat , C. Waters , M. F. Waterson , C. G. Wynn-Williams

Zooming In on the Progenitors of Superluminous Supernovae With the HST

We present Hubble Space Telescope (HST) rest-frame ultraviolet imaging of the host galaxies of 16 hydrogen-poor superluminous supernovae (SLSNe), including 11 events from the Pan-STARRS Medium Deep Survey. Taking advantage of the superb…

High Energy Astrophysical Phenomena · Physics 2015-05-07 R. Lunnan , R. Chornock , E. Berger , A. Rest , W. Fong , D. Scolnic , D. Jones , A. M. Soderberg , P. M. Challis , M. R. Drout , R. J. Foley , M. E. Huber , R. P. Kirshner , C. Leibler , G. H. Marion , M. McCrum , D. Milisavljevic , G. Narayan , N. E. Sanders , S. J. Smartt , K. W. Smith , J. L. Tonry , W. S. Burgett , K. C. Chambers , H. Flewelling , R. -P. Kudritzki , R. J. Wainscoat , C. Waters

Detectability of High-Redshift Superluminous Supernovae with Upcoming Optical and Near-Infrared Surveys

Observations of high-redshift supernovae (SNe) open a novel opportunity to study the massive star population in the early Universe. We study the detectability of superluminous SNe with upcoming optical and near-infrared (NIR) surveys. Our…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Masaomi Tanaka , Takashi J. Moriya , Naoki Yoshida , Ken'ichi Nomoto

X-Ray and Radio Emission from the Luminous Supernova 2005kd

SN 2005kd is among the most luminous supernovae (SNe) to be discovered at X-ray wavelengths. We have re-analysed all good angular resolution (better than $20"$ FWHM PSF) archival X-ray data for SN 2005kd. The data reveal an X-ray light…

High Energy Astrophysical Phenomena · Physics 2016-08-17 Vikram V. Dwarkadas , C. Romero-Cañizales , R. Reddy , F. E. Bauer

A new luminous supersoft X-ray source in NGC 300

Context. We report the discovery of a new luminous supersoft source, XMMU J005455.0-374117, in the nearby spiral galaxy NGC 300, in XMM-Newton observations performed on 2005 May 22 and on 2005 November 25. The source is not present in ROSAT…

Astrophysics · Physics 2009-11-11 S. Carpano , J. Wilms , M. Schirmer , E. Kendziorra

The broad-lined Type-Ic supernova SN 2022xxf with extraordinary two-humped light curves

We report on our study of supernova (SN) 2022xxf based on observations obtained during the first four months of its evolution. The light curves (LCs) display two humps of similar maximum brightness separated by 75 days, unprecedented for a…

Solar and Stellar Astrophysics · Physics 2023-11-01 H. Kuncarayakti , J. Sollerman , L. Izzo , K. Maeda , S. Yang , S. Schulze , C. R. Angus , M. Aubert , K. Auchettl , M. Della Valle , L. Dessart , K. Hinds , E. Kankare , M. Kawabata , P. Lundqvist , T. Nakaoka , D. Perley , S. I. Raimundo , N. L. Strotjohann , K. Taguchi , Y. -Z. Cai , P. Charalampopoulos , Q. Fang , M. Fraser , C. P. Gutierrez , R. Imazawa , T. Kangas , K. S. Kawabata , R. Kotak , T. Kravtsov , K. Matilainen , S. Mattila , S. Moran , I. Murata , I. Salmaso , J. P. Anderson , C. Ashall , E. C. Bellm , S. Benetti , K. C. Chambers , T. -W. Chen , M. Coughlin , F. De Colle , C. Fremling , L. Galbany , A. Gal-Yam , M. Gromadzki , S. L. Groom , A. Hajela , C. Inserra , M. M. Kasliwal , A. A. Mahabal , A. Martin-Carrillo , T. Moore , T. E. Muller-Bravo , M. Nicholl , F. Ragosta , R. L. Riddle , Y. Sharma , S. Srivastav , M. D. Stritzinger , A. Wold , D. R. Young

The Sloan Digital Sky Survey-II Supernova Survey: Technical Summary

The Sloan Digital Sky Survey-II (SDSS-II) has embarked on a multi-year project to identify and measure light curves for intermediate-redshift (0.05 < z < 0.35) Type Ia supernovae (SNe Ia) using repeated five-band (ugriz) imaging over an…

Astrophysics · Physics 2008-11-26 Joshua A. Frieman , B. Bassett , A. Becker , C. Choi , D. Cinabro , F. DeJongh , D. L. Depoy , B. Dilday , M. Doi , P. M. Garnavich , C. J. Hogan , J. Holtzman , M. Im , S. Jha , R. Kessler , K. Konishi , H. Lampeitl , J. Marriner , J. L. Marshall , D. McGinnis , G. Miknaitis , R. C. Nichol , J. L. Prieto , A. G. Riess , M. W. Richmond , R. Romani , M. Sako , D. P. Schneider , M. Smith , N. Takanashi , K. Tokita , K. van der Heyden , N. Yasuda , C. Zheng , J. Adelman-McCarthy , J. Annis , R. J. Assef , J. Barentine , R. Bender , R. D. Blandford , W. N. Boroski , M. Bremer , H. Brewington , C. A. Collins , A. Crotts , J. Dembicky , J. Eastman , A. Edge , E. Edmondson , E. Elson , M. E. Eyler , A. V. Filippenko , R. J. Foley , S. Frank , A. Goobar , T. Gueth , J. E. Gunn , M. Harvanek , U. Hopp , Y. Ihara , Ž. Ivezić , S. Kahn , J. Kaplan , S. Kent , W. Ketzeback , S. J. Kleinman , W. Kollatschny , R. G. Kron , J. Krzesiński , D. Lamenti , G. Leloudas , H. Lin , D. C. Long , J. Lucey , R. H. Lupton , E. Malanushenko , V. Malanushenko , R. J. McMillan , J. Mendez , C. W. Morgan , T. Morokuma , A. Nitta , L. Ostman , K. Pan , C. M. Rockosi , A. K. Romer , P. Ruiz-Lapuente , G. Saurage , K. Schlesinger , S. A. Snedden , J. Sollerman , C. Stoughton , M. Stritzinger , M. SubbaRao , D. Tucker , P. Vaisanen , L. C. Watson , S. Watters , J. C. Wheeler , B. Yanny , D. York

Discovery of SN 2025wny: a Strongly Gravitationally Lensed Superluminous Supernova at z = 2.01

We present the discovery of SN 2025wny (ZTF25abnjznp/GOTO25gtq) and spectroscopic classification of this event as the first gravitationally lensed Type I superluminous supernovae (SLSN-I). Deep ground-based follow-up observations resolves…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-28 Joel Johansson , Daniel A. Perley , Ariel Goobar , Jacob L. Wise , Yu-Jing Qin , Zoë McGrath , Steve Schulze , Cameron Lemon , Anjasha Gangopadhyay , Konstantinos Tsalapatas , Igor Andreoni , Eric C. Bellm , Joshua S. Bloom , Richard Dekany , Suhail Dhawan , Christoffer Fremling , Matthew J. Graham , Steven L. Groom , Daniel Gruen , Xander J. Hall , Mansi Kasliwal , Russ R. Laher , Ragnhild Lunnan , Ashish A. Mahabal , Adam A. Miller , Edvard Mörtsell , Jakob Nordin , Jacob Osman Hjortlund , R. Michael Rich , Reed L. Riddle , Avinash Singh , Jesper Sollerman , Alice Townsend , Lin Yan

The Exceptionally Luminous Type Ia Supernova 2007if

SN 2007if was the third over-luminous SN Ia detected after 2003fg and 2006gz. We present the photometric and spectroscopic observations of the supernova and its host by ROTSE-III, HET and Keck. From the H_alpha line identified in the host…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 F. Yuan , R. M. Quimby , J. C. Wheeler , J. Vinko , E. Chatzopoulos , C. W. Akerlof , S. Kulkarni , J. M. Miller , T. A. McKay , F. Aharonian

The Discovery of a Gravitationally Lensed Supernova Ia at Redshift 2.22

We present the discovery and measurements of a gravitationally lensed supernova (SN) behind the galaxy cluster MOO J1014+0038. Based on multi-band Hubble Space Telescope and Very Large Telescope (VLT) photometry of the supernova, and VLT…

Astrophysics of Galaxies · Physics 2018-10-24 David Rubin , Brian Hayden , Xiaosheng Huang , Greg Aldering , Rahman Amanullah , Kyle Barbary , Kyle Boone , Mark Brodwin , Susana E. Deustua , Sam Dixon , Peter Eisenhardt , Andrew S. Fruchter , Anthony H. Gonzalez , Ariel Goobar , Ravi R. Gupta , Isobel Hook , M. James Jee , Alex G. Kim , Marek Kowalski , Chris E. Lidman , Eric Linder , Kyle Luther , Jakob Nordin , Reynald Pain , Saul Perlmutter , Zachary Raha , Mickael Rigault , Pilar Ruiz-Lapuente , Clare M. Saunders , Caroline Sofiatti , Anthony L. Spadafora , S. Adam Stanford , Daniel Stern , Nao Suzuki , Steven C. Williams

SN 2020ank: a bright and fast-evolving H-deficient superluminous supernova

We investigate the observational properties of a hydrogen-deficient superluminous supernova (SLSN) SN 2020ank (at z = 0.2485), with the help of early phase observations carried out between $-$21 and +52 d since $g$-band maximum.…

High Energy Astrophysical Phenomena · Physics 2021-01-27 Amit Kumar , Brajesh Kumar , S. B. Pandey , D. K. Sahu , Avinash Singh , G. C. Anupama , Amar Aryan , Rahul Gupta , Anirban Dutta , Kuntal Misra

Late-time HST and JWST Observations of GRB 221009A: Evidence for a Break in the Light Curve at 50 Days

GRB 221009A is one of the brightest transients ever observed with the highest peak gamma-ray flux for a gamma-ray burst (GRB). A type Ic-BL supernova (SN), SN 2022xiw, was definitively detected in late-time JWST spectroscopy (t = 195 days,…

High Energy Astrophysical Phenomena · Physics 2025-03-27 Huei Sears , Ryan Chornock , Peter Blanchard , Raffaella Margutti , V. Ashley Villar , Justin Pierel , Patrick J. Vallely , Kate D. Alexander , Edo Berger , Tarraneh Eftekhari , Wynn V. Jacobson-Galan , Tanmoy Laskar , Natalie LeBaron , Brian D. Metzger , Dan Milisavljevic

Hydrogen-Poor Superluminous Supernovae from the Pan-STARRS1 Medium Deep Survey

We present light curves and classification spectra of 17 hydrogen-poor superluminous supernovae (SLSNe) from the Pan-STARRS1 Medium Deep Survey (PS1 MDS). Our sample contains all objects from the PS1 MDS sample with spectroscopic…

High Energy Astrophysical Phenomena · Physics 2018-01-15 R. Lunnan , R. Chornock , E. Berger , D. O. Jones , A. Rest , I. Czekala , J. Dittmann , M. R. Drout , R. J. Foley , W. Fong , R. P. Kirshner , T. Laskar , C. N. Leibler , R. Margutti , D. Milisavljevic , G. Narayan , Y. -C. Pan , A. G. Riess , K. C. Roth , N. E. Sanders , D. Scolnic , S. J. Smartt , K. W. Smith , K. C. Chambers , P. W. Draper , H. Flewelling , M. E. Huber , N. Kaiser , R. P. Kudritzki , E. A. Magnier , N. Metcalfe , R. J. Wainscoat , C. Waters , M. Willman

Pushing the Boundaries of Conventional Core-Collapse Supernovae: The Extremely Energetic Supernova SN 2003ma

We report the discovery of a supernova (SN) with the highest apparent energy output to date and conclude that it represents an extreme example of the Type IIn subclass. The SN, which was discovered behind the Large Magellanic Cloud at z =…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-18 A. Rest , R. J. Foley , S. Gezari , G. Narayan , B. Draine , K. Olsen , M. Huber , T. Matheson , A. Garg , D. L. Welch , A. C. Becker , P. Challis , A. Clocchiatti , K. H. Cook , G. Damke , M. Meixner , G. Miknaitis , D. Minniti , L. Morelli , S. Nikolaev , G. Pignata , J. L. Prieto , R. C. Smith , C. Stubbs , N. B. Suntzeff , A. R. Walker , W. M. Wood-Vasey , A. Zenteno , L. Wyrzykowski , A. Udalski , M. K. Szymanski , M. Kubiak , G. Pietrzynski , I. Soszynski , O. Szewczyk , K. Ulaczyk , R. Poleski

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

SN 2024abfl: A Flat-Plateau, Low-Luminosity Type IIP Supernova with Early CSM Interaction

We present photometric and spectroscopic observations of SN 2024abfl, a low-luminosity Type IIP supernova (LLSN) discovered shortly after explosion. The transient reached a peak absolute magnitude of $M_V = -14.9$ and exhibited an extended,…

High Energy Astrophysical Phenomena · Physics 2026-01-07 Madison Gerard , Jennifer E. Andrews , Geoffrey C. Clayton , David J. Sand , K. Azalee Bostroem , Jeniveve Pearson , Raya Dastidar , Aravind P. Ravi , Conor L. Ransome , Bhagya Subrayan , Griffin Hosseinzadeh , Brian Hsu , Yize Dong , Manisha Shrestha , Stefano Valenti , Nathan Smith , Daryl Janzen , M. J. Lundquist , Nicolas Meza , Saurabh W. Jha , Kate D. Alexander , Collin Christy , Noah Franz , Lindsey A. Kwok , Moira Andrews , Joseph Farah , Daichi Hiramatsu , D. Andrew Howell , Curtis McCully , Kathryn Wynn , Reka Konyves-Toth , Xiaofeng Wang

The 2003/2004 superoutburst of SDSS J013701.06-091234.9

We report on time-resolved photometry of the superoutburst of an SU UMa-type dwarf nova, SDSS J013701.06-091234.9 in 2003 December-2004 January. The obtained light curves definitely show superhumps with a period of 0.056686 (12) d, which is…

Astrophysics · Physics 2015-06-24 Akira Imada , Taichi Kato , Kaori Kubota , Makoto Uemura , Ryoko Ishioka , Seiichiro Kiyota , Kenzo Kinugasa , Hiroyuki Maehara , Kazuhiro Nakajima , L. A. G. Berto Monard , Donn R. Starkey , Arto Oksanen , Daisaku Nogami

The Slow Demise of the Long-Lived SN 2005ip

The Type IIn supernova (SN) 2005ip is one of the most well-studied and long-lasting examples of a SN interacting with its circumstellar environment. The optical light curve plateaued at a nearly constant level for more than five years,…

High Energy Astrophysical Phenomena · Physics 2020-08-19 Ori D. Fox , Claes Fransson , Nathan Smith , Jennifer Andrews , K. Azalee Bostroem , Thomas G. Brink , S. Bradley Cenko , Geoffrey C. Clayton , Alexei V. Filippenko , Wen-fai Fong , Joseph S. Gallagher , Patrick L. Kelly , Charles D. Kilpatrick , Jon C. Mauerhan , Adam M. Miller , Edward Montiel , Maximilian D. Stritzinger , Tamás Szalai , Schuyler D. Van Dyk

SN 2018hti: a nearby superluminous supernova discovered in a metal-poor galaxy

SN 2018hti is a Type I superluminous supernova (SLSN~I) with an absolute $g$-band magnitude of $-22.2$ at maximum brightness, discovered in a metal-poor galaxy at a redshift of 0.0612. We present extensive photometric and spectroscopic…

High Energy Astrophysical Phenomena · Physics 2020-08-18 W. L. Lin , X. F. Wang , W. X. Li , J. J. Zhang , J. Mo , H. N. Sai , X. H. Zhang , A. V. Filippenko , W. K. Zheng , T. G. Brink , E. Baron , J. M. DerKacy , S. A. Ehgamberdiev , D. Mirzaqulov , X. Li , J. C. Zhang , S. Y. Yan , G. B. Xi , Y. Hsiao , T. M. Zhang , L. J. Wang , L. D. Liu , D. F. Xiang , C. Y. Wu , L. M. Rui , Z. H. Chen