Related papers: Massive stars exploding in a He-rich circumstellar…

Massive stars exploding in a He-rich circumstellar medium. IV. Transitional Type Ibn Supernovae

We present ultraviolet, optical and near-infrared data of the Type Ibn supernovae (SNe) 2010al and 2011hw. SN 2010al reaches an absolute magnitude at peak of M(R) = -18.86 +- 0.21. Its early light curve shows similarities with normal SNe…

Solar and Stellar Astrophysics · Physics 2015-06-23 A. Pastorello , S. Benetti , P. J. Brown , D. Y. Tsvetkov , C. Inserra , S. Taubenberger , L. Tomasella , M. Fraser , D. J. Rich , M. T. Botticella , F. Bufano , E. Cappellaro , M. Ergon , E. S. Gorbovskoy , A. Harutyunyan , F. Huang , R. Kotak , V. M. Lipunov , L. Magill , M. Miluzio , N. Morrell , P. Ochner , S. J. Smartt , J. Sollerman , S. Spiro , M. D. Stritzinger , M. Turatto , S. Valenti , X. Wang , D. E. Wright , V. V. Yurkov , L. Zampieri , T. Zhang

Massive stars exploding in a He-rich circumstellar medium. V. Observations of the slow-evolving SN Ibn OGLE-2012-SN-006

We present optical observations of the peculiar Type Ibn supernova (SN Ibn) OGLE-2012-SN-006, discovered and monitored by the OGLE-IV survey, and spectroscopically followed by PESSTO at late phases. Stringent pre-discovery limits constrain…

Solar and Stellar Astrophysics · Physics 2015-06-23 A. Pastorello , L. Wyrzykowski , S. Valenti , J. L. Prieto , S. Kozlowski , A. Udalski , N. Elias-Rosa , A. Morales-Garoffolo , J. P. Anderson , S. Benetti , M. Bersten , M. T. Botticella , E. Cappellaro , G. Fasano , M. Fraser , A. Gal-Yam , M. Gillone , M. L. Graham , J. Greiner , S. Hachinger , D. A. Howell , C. Inserra , J. Parrent , A. Rau , S. Schulze , S. J. Smartt , K. W. Smith , M. Turatto , O. Yaron , D. R. Young , M. Kubiak , M. K. Szymanski , G. Pietrzynski , I. Soszynski , K. Ulaczyk , R. Poleski , P. Pietrukowicz , J. Skowron , P. Mroz

Massive stars exploding in a He-rich circumstellar medium. XI. Diverse evolution of five Ibn SNe 2020nxt, 2020taz, 2021bbv, 2023utc and 2024aej

We present the photometric and spectroscopic analysis of five Type Ibn supernovae (SNe): SN 2020nxt, SN 2020taz, SN 2021bbv, SN 2023utc, and SN 2024aej. These events share key observational features and belong to a family of objects similar…

High Energy Astrophysical Phenomena · Physics 2025-08-27 Z. -Y. Wang , A. Pastorello , Y. -Z. Cai , M. Fraser , A. Reguitti , W. -L. Lin , L. Tartaglia , D. Andrew Howell , S. Benetti , E. Cappellaro , Z. -H. Chen , N. Elias-Rosa , J. Farah , A. Fiore , D. Hiramatsu , E. Kankare , Z. -T. Li , P. Lundqvist , P. A. Mazzali , C. McCully , J. Mo , S. Moran , M. Newsome , E. Padilla Gonzalez , C. Pellegrino , Z. -H. Peng , S. J. Smartt , S. Srivastav , M. D. Stritzinger , G. Terreran , L. Tomasella , G. Valerin , G. -J. Wang , X. -F. Wang , T. de Boer , K. C. Chambers , H. Gao , F. -Z. Guo , C. P. Guti'errez , T. Kangas , E. Karamehmetoglu , G. -C. Li , C. -C. Lin , T. B. Lowe , X. -R. Ma , E. A. Magnier , P. Minguez , S. -P. Pei , T. M. Reynolds , R. J. Wainscoat , B. Wang , S. Williams , C. -Y. Wu , J. -J. Zhang , X. -H. Zhang , X. -J. Zhu

Massive stars exploding in a He-rich circumstellar medium $-$ X. Flash spectral features in the Type Ibn SN 2019cj and observations of SN 2018jmt

We present optical and near-infrared observations of two Type Ibn supernovae (SNe), SN 2018jmt and SN 2019cj. Their light curves have rise times of about 10 days, reaching an absolute peak magnitude of $M_g$(SN 2018jmt) = $-$19.07 $\pm$…

High Energy Astrophysical Phenomena · Physics 2024-11-13 Z. -Y. Wang , A. Pastorello , K. Maeda , A. Reguitti , Y. -Z. Cai , D. Andrew Howell , S. Benetti , D. Buckley , E. Cappellaro , R. Carini , R. Cartier , T. -W. Chen , N. Elias-Rosa , Q. -L. Fang , A. Gal-Yam , A. Gangopadhyay , M. Gromadzki , W. -P. Gan , D. Hiramatsu , M. -K. Hu , C. Inserra , C. McCully , M. Nicholl , F. E. Olivares , G. Pignata , J. Pineda-Garc'ia , M. Pursiainen , F. Ragosta , A. Rau , R. Roy , J. Sollerman , L. Tartaglia , G. Terreran , G. Valerin , Q. Wang , S. -Q. Wang , D. R. Young , A. Aryan , M. Bronikowski , E. Concepcion , L. Galbany , H. Lin , A. Melandri , T. Petrushevska , M. Ramirez , D. -D Shi , B. Warwick , J. -J. Zhang , B. Wang , X. -F. Wang , X. -J. Zhu

Massive stars exploding in a He-rich circumstellar medium - IX. SN 2014av, and characterization of Type Ibn SNe

We present spectroscopic and photometric data of the Type Ibn supernova (SN) 2014av, discovered by the Xingming Observatory Sky Survey. Stringent pre-discovery detection limits indicate that the object was detected for the first time about…

Solar and Stellar Astrophysics · Physics 2015-12-23 A. Pastorello , X. -F. Wang , F. Ciabattari , D. Bersier , P. A. Mazzali , X. Gao , Z. Xu , J. -J. Zhang , S. Tokuoka , S. Benetti , E. Cappellaro , N. Elias-Rosa , A. Harutyunyan , F. Huang , M. Miluzio , J. Mo , P. Ochner , L. Tartaglia , G. Terreran , L. Tomasella , M. Turatto

LSQ13ddu: A rapidly-evolving stripped-envelope supernova with early circumstellar interaction signatures

This paper describes the rapidly evolving and unusual supernova LSQ13ddu, discovered by the La Silla-QUEST survey. LSQ13ddu displayed a rapid rise of just 4.8$\pm$0.9 d to reach a peak brightness of $-$19.70$\pm$0.02 mag in the…

High Energy Astrophysical Phenomena · Physics 2020-01-22 Peter Clark , Kate Maguire , Cosimo Inserra , Simon Prentice , Stephen J. Smartt , Carlos Contreras , Griffin Hossenizadeh , Eric Y. Hsiao , Erkki Kankare , Mansi Kasliwal , Peter Nugent , Melissa Shahbandeh , Charles Baltay , David Rabinowitz , Iair Arcavi , Chris Ashall , Christopher R. Burns , Emma Callis , Ting-Wan Chen , Tiara Diamond , Morgan Fraser , D. Andrew Howell , Emir Karamehmetoglu , Rubina Kotak , Joseph Lyman , Nidia Morrell , Mark Phillips , Giuliano Pignata , Miika Pursiainen , Jesper Sollerman , Maximilian Stritzinger , Mark Sullivan , David Young

PS1-12sk is a Peculiar Supernova From a He-rich Progenitor System in a Brightest Cluster Galaxy Environment

We report on our discovery and observations of the Pan-STARRS1 supernova (SN) PS1-12sk, a transient with properties that indicate atypical star formation in its host galaxy cluster or pose a challenge to popular progenitor system models for…

Cosmology and Nongalactic Astrophysics · Physics 2013-10-17 N. E. Sanders , A. M. Soderberg , R. J. Foley , R. Chornock , D. Milisavljevic , R. Margutti , M. R. Drout , M. Moe , E. Berger , W. R. Brown , R. Lunnan , S. J. Smartt , M. Fraser , R. Kotak , L. Magill , K. W. Smith , D. Wright , K. Huang , Y. Urata , J. S. Mulchaey , A. Rest , D. J. Sand , L. Chomiuk , A. S. Friedman , R. P. Kirshner , G. H. Marion , J. L. Tonry , W. S. Burgett , K. C. Chambers , K. W. Hodapp , R. P. Kudritzki , P. A. Price

OGLE-2014-SN-131: A long-rising Type Ibn supernova from a massive progenitor

Type Ibn supernovae (SNe Ibn) are thought to be the core-collapse explosions of massive stars whose ejecta interact with He-rich circumstellar material (CSM). We report the discovery of a SN Ibn, with the longest rise-time ever observed,…

High Energy Astrophysical Phenomena · Physics 2017-06-23 E. Karamehmetoglu , F. Taddia , J. Sollerman , Ł. Wyrzykowski , S. Schmidl , M. Fraser , C. Fremling , J. Greiner , C. Inserra , Z. Kostrzewa-Rutkowska , K. Maguire , S. Smartt , M. Sullivan , D. R. Young

Characterization of type Ibn SNe

Type Ibn supernovae (SNe) are characterized by narrow helium (He I) lines from photons produced by the unshocked circumstellar material (CSM). About 80 SNe Ibn have been discovered to date, and only a handful have extensive observational…

High Energy Astrophysical Phenomena · Physics 2026-04-15 D. Farias , C. Gall , V. A. Villar , K. Auchettl , K. M. de Soto , A. Gagliano , W. B. Hoogendam , G. Narayan , A. Sedgewick , S. K. Yadavalli , Y. Zenati , C. R. Angus , K. W. Davis , J. Hjorth , W. V. Jacobson-Galán , D. O. Jones , C. D. Kilpatrick , M. J. Bustamante Rosell , D. A. Coulter , G. Dimitriadis , R. J. Foley , A. Gangopadhyay , H. Gao , M. E. Huber , L. Izzo , J. L. Johnson , A. L. Piro , A. Rest , C. Rojas-Bravo , M. R. Siebert , K. Taggart , S. Tinyanont

Massive stars exploding in a He-rich circumstellar medium. I. Type Ibn (SN 2006jc-like) events

We present new spectroscopic and photometric data of the type Ibn supernovae 2006jc, 2000er and 2002ao. We discuss the general properties of this recently proposed supernova family, which also includes SN 1999cq. The early-time monitoring…

Astrophysics · Physics 2009-11-13 A. Pastorello , S. Mattila , L. Zampieri , M. Della Valle , S. J. Smartt , S. Valenti , I. Agnoletto , S. Benetti , C. R. Benn , D. Branch , E. Cappellaro , M. Dennefeld , J. J. Eldridge , A. Gal-Yam , A. Harutyunyan , I. Hunter , H. Kjeldsen , Y. Lipkin , P. A. Mazzali , P. Milne , H. Navasardyan , E. O. Ofek , E. Pian , O. Shemmer , S. Spiro , R. A. Stathakis , S. Taubenberger , M. Turatto , H. Yamaoka

Massive stars exploding in a He-rich circumstellar medium XII. SN 2024acyl: A fast, linearly declining Type Ibn supernova with early flash-ionisation features

We present a photometric and spectroscopic analysis of the Type Ibn supernova (SN) 2024acyl. It rises to an absolute magnitude peak of about -17.58 mag in 10.6 days, and displays a rapid linear post-peak light-curve decline in all bands,…

Solar and Stellar Astrophysics · Physics 2026-03-04 Y. -Z. Cai , A. Pastorello , K. Maeda , J. -W. Zhao , Z. -Y. Wang , Z. -H. Peng , A. Reguitti , L. Tartaglia , A. V. Filippenko , Y. Pan , G. Valerin , B. Kumar , Z. Wang , M. Fraser , J. P. Anderson , S. Benetti , S. Bose , T. G. Brink , E. Cappellaro , T. -W. Chen , X. -L. Chen , N. Elias-Rosa , A. Esamdin , A. Gal-Yam , M. González-Bañuelos , M. Gromadzki , C. P. Gutiérrez , A. Iskandar , C. Inserra , T. Kangas , E. Kankare , T. Kravtsov , H. Kuncarayakti , L. -P. Li , C. -X. Liu , X. -K. Liu , P. Lundqvist , K. Matilainen , S. Mattila , S. Moran , T. E. Müller-Bravo , T. Nagao , T. Petrushevska , G. Pignata , I. Salmaso , S. J. Smartt , J. Sollerman , M. D. Stritzinger , S. Srivastav , L. -T. Wang , S. -Y. Yan , Y. Yang , Y. -P. Yang , W. Zheng , X. -Z. Zou , L. -Y. Chen , X. -L. Du , Q. -L. Fang , A. Fiore , F. Ragosta , S. Zha , J. -J. Zhang , X. -W. Liu , J. -M. Bai , B. Wang , X. -F. Wang

iPTF13beo: The Double-Peaked Light Curve of a Type Ibn Supernova Discovered Shortly after Explosion

We present optical photometric and spectroscopic observations of the Type Ibn (SN 2006jc-like) supernova iPTF13beo. Detected by the intermediate Palomar Transient Factory ~3 hours after the estimated first light, iPTF13beo is the youngest…

Solar and Stellar Astrophysics · Physics 2015-06-18 Evgeny Gorbikov , Avishay Gal-Yam , Eran O. Ofek , Paul M. Vreeswijk , Peter E. Nugent , Nicolas Chotard , Shrinivas R. Kulkarni , Yi Cao , Annalisa De Cia , Ofer Yaron , David Tal , Iair Arcavi , Mansi M. Kasliwal , S. Bradley Cenko , Mark Sullivan , Juncheng Chen

Helium stars exploding in circumstellar material and the origin of Type Ibn supernovae

Type Ibn supernovae (SNe) are a mysterious class of transients whose spectra exhibit persistently narrow HeI lines, and whose bolometric light curves are typically fast evolving and overluminous at peak relative to standard Type Ibc SNe. We…

Solar and Stellar Astrophysics · Physics 2022-03-14 Luc Dessart , John Hillier , Hanindyo Kuncarayakti

Type Ibn Supernovae Show Photometric Homogeneity and Spectral Diversity at Maximum Light

Type Ibn supernovae (SNe) are a small yet intriguing class of explosions whose spectra are characterized by low-velocity helium emission lines with little to no evidence for hydrogen. The prevailing theory has been that these are the…

High Energy Astrophysical Phenomena · Physics 2019-01-24 Griffin Hosseinzadeh , Iair Arcavi , Stefano Valenti , Curtis McCully , D. Andrew Howell , Joel Johansson , Jesper Sollerman , Andrea Pastorello , Stefano Benetti , Yi Cao , S. Bradley Cenko , Kelsey Clubb , Alessandra Corsi , Gina Duggan , Nancy Elias-Rosa , Alexei V. Filippenko , Ori D. Fox , Christoffer Fremling , Assaf Horesh , Emir Karamehmetoglu , Mansi Kasliwal , G. H. Marion , Eran Ofek , David Sand , Francesco Taddia , WeiKang Zheng , Morgan Fraser , Avishay Gal-Yam , Cosimo Inserra , Russ Laher , Frank Masci , Umaa Rebbapragada , Stephen Smartt , Ken W. Smith , Mark Sullivan , Jason Surace , Przemek Woźniak

ASASSN-14ms:the Most Energetic Known Explosion of a Type Ibn Supernova and its Physical Origin

ASASSN-14ms may represent the most luminous Type Ibn supernova (SN~Ibn) ever detected, with an absolute U-band magnitude brighter than -22.0 mag and a total bolometric luminosity >1.0x10^{44} erg/s near maximum light. The early-time spectra…

High Energy Astrophysical Phenomena · Physics 2021-09-08 Xiaofeng Wang , Weili Lin , Jujia Zhang , Tianmeng Zhang , Yongzhi Cai , Kaicheng Zhang , Alexei V. Filippenko , Melissa Graham , Keiichi Maeda , Jun Mo , Danfeng Xiang , Gaobo Xi , Shengyu Yan , Lifan Wang , Lingjun Wang , Koji Kawabata , Qian Zhai

Massive stars exploding in a He-rich circumstellar medium - VII. The metamorphosis of ASASSN-15ed from a narrow line Type Ibn to a normal Type Ib Supernova

We present the results of the spectroscopic and photometric monitoring campaign of ASASSN-15ed. The transient was discovered quite young by the All Sky Automated Survey for SuperNovae (ASAS-SN). Amateur astronomers allowed us to sample the…

Solar and Stellar Astrophysics · Physics 2015-10-01 A. Pastorello , J. L. Prieto , N. Elias-Rosa , D. Bersier , G. Hosseinzadeh , A. Morales-Garoffolo , U. M. Noebauer , S. Taubenberger , L. Tomasella , C. S. Kochanek , E. Falco , U. Basu , J. F. Beacom , S. Benetti , J. Brimacombe , E. Cappellaro , A. B. Danilet , Subo Dong , J. M. Fernandez , N. Goss , V. Granata , A. Harutyunyan , T. W. -S. Holoien , E. E. O. Ishida , S. Kiyota , G. Krannich , B. Nicholls , P. Ochner , G. Pojmanski , B. J. Shappee , G. V. Simonian , K. Z. Stanek , S. Starrfield , D. Szczygiel , L. Tartaglia , G. Terreran , T. A. Thompson , M. Turatto , R. M. Wagner , W. S. Wiethoff , A. Wilber , P. R. Wozniak

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

Evolution of A Peculiar Type Ibn Supernova SN 2019wep

We present a high-cadence short term photometric and spectroscopic monitoring campaign of a type Ibn SN 2019wep, which is one of the rare SN Ibn after SNe 2010al and 2019uo to display signatures of flash ionization (\ion{He}{2}, \ion{C}{3},…

High Energy Astrophysical Phenomena · Physics 2022-05-18 Anjasha Gangopadhyay , Kuntal Misra , Griffin Hosseinzadeh , Iair Arcavi , Craig Pellegrino , Xiaofeng Wang , D. Andrew Howell , Jamison Burke , Jujia Zhang , Koji Kawabata , Mridweeka Singh , Raya Dastidar , Daichi Hiramatsu , Curtis McCully , Jun Mo , Zhihao Chen , Danfeng Xiang

SN 2020bqj: a Type Ibn supernova with a long lasting peak plateau

Context: Type Ibn supernovae are a rare class of stripped envelope supernovae interacting with a helium-rich CSM. The majority of the SNe Ibn reported display a surprising homogeneity in their fast lightcurves and starforming hosts. Aims:…

High Energy Astrophysical Phenomena · Physics 2021-08-25 E. C. Kool , E. Karamehmetoglu , J. Sollerman , S. Schulze , R. Lunnan , T. M. Reynolds , C. Barbarino , E. C. Bellm , K. De , D. A. Duev , C. Fremling , V. Z. Golkhou , M. L. Graham , D. A. Green , A. Horesh , S. Kaye , Y. -L. Kim , R. R. Laher , F. J. Masci , J. Nordin , D. A. Perley , E. S. Phinney , M. Porter , D. Reiley , H. Rodriguez , J. van Roestel , B. Rusholme , Y. Sharma , I. Sfaradi , M. T. Soumagnac , K. Taggart , L. Tartaglia , D. R. A. Williams , L. Yan

SN 2011hw: Helium-Rich Circumstellar Gas and the Luminous Blue Variable to Wolf-Rayet Transition in Supernova Progenitors

We present optical photometry and spectroscopy of the peculiar Type IIn/Ibn supernova SN2011hw. Its light curve exhibits a slower decline rate than normal SNeIbc, with a peak absolute magnitude of -19.5 (unfiltered) and a secondary peak of…

Solar and Stellar Astrophysics · Physics 2015-06-04 Nathan Smith , Jon C. Mauerhan , Jeffrey M. Silverman , Mohan Ganeshalingam , Alexei V. Filippenko , S. Bradley Cenko , Kelsey I. Clubb , Michael Kandrashoff