Related papers: SNhunt151: an explosive event inside a dense cocoo…

Luminous Blue Variable eruptions and related transients: Diversity of progenitors and outburst properties

We present new light curves and spectra for a number of extragalactic optical transients or "SN impostors" related to giant eruptions of LBVs, and we provide a comparative discussion of LBV-like giant eruptions known to date. New data…

Solar and Stellar Astrophysics · Physics 2015-05-20 Nathan Smith , Weidong Li , Jeffrey M. Silverman , Mo Ganeshalingam , Alexei V. Filippenko

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

Interacting supernovae and supernova impostors. SN 2007sv: the major eruption of a massive star in UGC 5979

We report the results of the photometric and spectroscopic monitoring campaign of the transient SN 2007sv. The observables are similar to those of type IIn supernovae, a well-known class of objects whose ejecta interact with pre-existing…

Solar and Stellar Astrophysics · Physics 2015-06-19 L. Tartaglia , A. Pastorello , S. Taubenberger , E. Cappellaro , J. R. Maund , S. Benetti , T. Boles , F. Bufano , G. Duszanowicz , N. Elias-Rosa , A. Harutyunyan , L. Hermansson , P. Hoeflich , K. Maguire , H. Navasardyan , S. J. Smartt , F. Taddia , M. Turatto

A spectroscopically confirmed, strongly lensed, metal-poor Type II supernova at z = 5.13

Observing supernovae (SNe) in the early Universe (z > 3) provides a window into how both galaxies and individual stars have evolved over cosmic time, yet a detailed study of high-redshift stars and SNe has remained difficult due to their…

High Energy Astrophysical Phenomena · Physics 2026-01-22 David A. Coulter , Conor Larison , Justin D. R. Pierel , Seiji Fujimoto , Vasily Kokorev , Joseph F. V. Allingham , Takashi J. Moriya , Matthew Siebert , Yoshihisa Asada , Rachel Bezanson , Maruša Bradač , Gabriel Brammer , John Chisholm , Dan Coe , Pratika Dayal , Michael Engesser , Steven L. Finkelstein , Ori D. Fox , Lukas J. Furtak , Anton M. Koekemoer , Thomas Moore , Minami Nakane , Masami Ouchi , Richard Pan , Robert Quimby , Armin Rest , Johan Richard , Luke Robbins , Louis-Gregory Strolger , Fengwu Sun , Tommaso Treu , Hiroto Yanagisawa , Abdurro'uf , Aadya Agrawal , Ricardo Amorín , Joseph P. Anderson , Rodrigo Angulo , Hakim Atek , Franz E. Bauer , Larry D. Bradley , Volker Bromm , Mateusz Bronikowski , Christopher J. Conselice , Christa DeCoursey , James M. DerKacy , Guillaume Desprez , Suhail Dhawan , Jose M. Diego , Eiichi Egami , Andreas Faisst , Brenda Frye , Sebastian Gomez , Mauro González-Otero , Massimo Griggio , Yuichi Harikane , Kohei Inayoshi , Saurabh W. Jha , Yolanda Jiménez-Teja , Jeyhan S. Kartaltepe , Patrick L. Kelly , Lindsey A. Kwok , Zachary G. Lane , Xiaolong Li , Ivo Lobbe , Paulo A. A. Lopes , Ray A. Lucas , Georgios E. Magdis , Nicholas S. Martis , Jorryt Matthee , Ashish K. Meena , Rohan P. Naidu , Gaël Noirot , Masamune Oguri , Estefania Padilla Gonzalez , Massimo Pascale , Tanja Petrushevska , Massimo Ricotti , Daniel Schaerer , Stefan Schuldt , Melissa Shahbandeh , William Sheu , Koji Shukawa , Akiyoshi Tsujita , Eros Vanzella , Qinan Wang , John Weaver , Robert Williams , Rogier Windhorst , Yi Xu , Yossef Zenati , Adi Zitrin

The transitional Type Ibn/IIn SN 2022pda, with pre-explosion outbursts and a double-peaked light curve

We report the results of a photometric and spectroscopic follow-up campaign of the unusual interacting supernova (SN) 2022pda. Precursor variability lasting $\sim 100$ days is observed before the explosion. The SN light curve has a double…

High Energy Astrophysical Phenomena · Physics 2026-05-26 Y. -Z. Cai , A. Pastorello , R. Chiba , T. J. Moriya , A. Reguitti , L. Tartaglia , S. Moran , S. Campana , Z. -Y. Wang , J. -W. Zhao , J. P. Anderson , S. Benetti , S. J. Brennan , E. Cappellaro , K. C. Chambers , T. -W. Chen , Z. -H. Chen , T. de Boer , Y. -Z. Dong , J. Duarte , N. Elias-Rosa , M. Fraser , W. -P. Gan , H. Gao , M. Gromadzki , G. Hosseinzadeh , D. A. Howell , C. Inserra , T. Kangas , E. Kankare , T. Kravtsov , L. -P. Li , C. -C. Lin , T. B. Lowe , P. Lundqvist , E. A. Magnier , K. Matilainen , P. A. Mazzali , C. McCully , P. Minguez , T. E. Müller-Bravo , M. Newsome , E. Padilla Gonzalez , C. Pellegrino , P. J. Pessi , T. Petrushevska , G. Pignata , R. P. Santos , S. Schulze , S. J. Smartt , I. A. Smith , K. W. Smith , J. Sollerman , S. Srivastav , M. D. Stritzinger , G. Terreran , G. Valerin , R. Wainscoat , S. -Q. Wang , D. R. Young , L. Galbany , Z. Li , I. Salmaso , S. Zha , J. -M. Bai , B. Wang , X. -F. Wang , J. -J. Zhang

The Candidate Progenitor of the Type IIn SN 2010jl is Not an Optically Luminous Star

The nature of the progenitor star (or system) for the Type IIn supernova (SN) subclass remains uncertain. While there are direct imaging constraints on the progenitors of at least four Type IIn supernovae, one of them being SN 2010jl,…

Solar and Stellar Astrophysics · Physics 2017-03-08 Ori D. Fox , Schuyler D. Van Dyk , Eli Dwek , Nathan Smith , Alexei V. Filippenko , Jennifer Andrews , Richard G. Arendt , Ryan J. Foley , Patrick L. Kelly , Adam A. Miller , Isaac Shivvers

Origins of Type Ibn SNe 2006jc/2015G in interacting binaries and implications for pre-SN eruptions

Type Ibn supernovae (SNe Ibn) are intriguing stellar explosions whose spectra exhibit narrow helium lines with little hydrogen. They trace the presence of circumstellar material (CSM) formed via pre-SN eruptions of their stripped-envelope…

Solar and Stellar Astrophysics · Physics 2020-01-08 Ning-Chen Sun , Jusytn R. Maund , Ryosuke Hirai , Paul A. Crowther , Philipp Podsiadlowski

The Nature of SN 1961V

The nature of SN 1961V has been uncertain. Its peculiar optical light curve and slow expansion velocity are similar to those of super-outbursts of luminous blue variables (LBVs), but its nonthermal radio spectral index and declining radio…

Astrophysics · Physics 2009-11-10 You-Hua Chu , Robert A. Gruendl , Christopher J. Stockdale , Michael P. Rupen , John J. Cowan , Scott W. Teare

An Unusually Fast-Evolving Supernova

Analyses of supernovae (SNe) have revealed two main types of progenitors: exploding white dwarfs and collapsing massive stars. We present SN2002bj, which stands out as different from any SN reported to date. Its light curve rises and…

Solar and Stellar Astrophysics · Physics 2015-05-14 Dovi Poznanski , Ryan Chornock , Peter E. Nugent , Joshua S. Bloom , Alexei V. Filippenko , Mohan Ganeshalingam , Douglas C. Leonard , Weidong Li , Rollin C. Thomas

SN 2021foa, a transitional event between a Type IIn (SN 2009ip-like) and a Type Ibn supernova

We present photometric and spectroscopic data of the unusual interacting supernova (SN) 2021foa. It rose to an absolute magnitude peak of $M_r=-18$ mag in 20 days. The initial light curve decline shows some luminosity fluctuations before a…

Solar and Stellar Astrophysics · Physics 2022-06-29 A. Reguitti , A. Pastorello , G. Pignata , M. Fraser , M. D. Stritzinger , S. J. Brennan , Y. -Z. Cai , N. Elias-Rosa , D. Fugazza , C. P. Gutierrez , E. Kankare , R. Kotak , P. Lundqvist , P. A. Mazzali , S. Moran , I. Salmaso , L. Tomasella , G. Valerin , H. Kuncarayakti

Intermediate-luminosity Type IIP SN 2021gmj: a low-energy explosion with signatures of circumstellar material

We present photometric, spectroscopic and polarimetric observations of the intermediate-luminosity Type IIP supernova (SN) 2021gmj from 1 to 386 days after the explosion. The peak absolute V-band magnitude of SN 2021gmj is -15.5 mag, which…

High Energy Astrophysical Phenomena · Physics 2024-01-12 Yuta Murai , Masaomi Tanaka , Miho Kawabata , Kenta Taguchi , Rishabh Singh Teja , Tatsuya Nakaoka , Keiichi Maeda , Koji S. Kawabata , Takashi Nagao , Takashi J. Moriya , D. K. Sahu , G. C. Anupama , Nozomu Tominaga , Tomoki Morokuma , Ryo Imazawa , Satoko Inutsuka , Keisuke Isogai , Toshihiro Kasuga , Naoto Kobayashi , Sohei Kondo , Hiroyuki Maehara , Yuki Mori , Yuu Niino , Mao Ogawa , Ryou Ohsawa , Shin-ichiro Okumura , Sei Saito , Shigeyuki Sako , Hidenori Takahashi , Kohki Uno , Masayuki Yamanaka

Close, bright and boxy: the superluminous SN 2018hti

SN 2018hti was a very nearby (z=0.0614) superluminous supernova with an exceedingly bright absolute magnitude of -21.7 mag in r-band at maximum. The densely sampled pre-maximum light curves of SN 2018hti show a slow luminosity evolution and…

High Energy Astrophysical Phenomena · Physics 2022-03-30 A. Fiore , S. Benetti , M. Nicholl , A. Reguitti , E. Cappellaro , S. Campana , S. Bose , E. Paraskeva , E. Berger , T. M. Bravo , J. Burke , Y. -Z. Cai , T. -W. Chen , P. Chen , R. Ciolfi , S. Dong , S. Gomez , M. Gromadzki , C. P. Gutiérrez , D. Hiramatsu , G. Hosseinzadeh , D. A. Howell , A. Jerkstrand , E. Kankare , A. Kozyreva , K. Maguire , C. McCully , P. Ochner , C. Pellegrino , G. Pignata , R. S. Post , N. Elias-Rosa , M. Shahbandeh , S. Schuldt , B. P. Thomas , L. Tomasella , J. Vinkó , C. Vogl , J. C. Wheeler , D. R. Young

A long life of excess: The interacting transient SN 2017hcc

In this study we present the results of a five-year follow-up campaign of the long-lived type IIn supernova SN 2017hcc, found in a spiral dwarf host of near-solar metallicity. The long rise time (57 $\pm$ 2 days, ATLAS $o$ band) and high…

High Energy Astrophysical Phenomena · Physics 2023-01-11 S. Moran , M. Fraser , R. Kotak , A. Pastorello , S. Benetti , S. J. Brennan , C. P. Gutiérrez , E. Kankare , H. Kuncarayakti , S. Mattila , T. M. Reynolds , J. P. Anderson , P. J. Brown , S. Campana , K. C. Chambers , T. -W. Chen , M. Della Valle , M. Dennefeld , N. Elias-Rosa , L. Galbany , F. J. Galindo-Guil , M. Gromadzki , D. Hiramatsu , C. Inserra , G. Leloudas , T. E. Müller-Bravo , M. Nicholl , A. Reguitti , M. Shahbandeh , S. J. Smartt , L. Tartaglia , D. R. Young

SN 2011ht: Confirming a Class of Interacting Supernovae with Plateau Light Curves (Type IIn-P)

We present photometry and spectroscopy of the Type IIn supernova (SN) 2011ht, identified previously as a SN impostor. The light curve exhibits an abrupt transition from a well-defined ~120 day plateau to a steep bolometric decline. Leading…

Solar and Stellar Astrophysics · Physics 2015-06-11 Jon C. Mauerhan , Nathan Smith , Jeffrey M. Silverman , Alexei V. Filippenko , Adam N. Morgan , S. Bradley Cenko , Mohan Ganeshalingam , Kelsey I. Clubb , Thomas Matheson

NEOWISE-R Caught the Luminous SN 2023ixf in Messier 101

The reactivated Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE-R) serendipitously caught the Type II supernova SN 2023ixf in Messier 101 on the rise, starting day 3.6 through day 10.9, and on the late-time decline from days…

Solar and Stellar Astrophysics · Physics 2024-06-27 Schuyler D. Van Dyk , Tamas Szalai , Roc M. Cutri , J. Davy Kirkpatrick , Carl J. Grillmair , Sergio B. Fajardo-Acosta , Joseph R. Masiero , Amy K. Mainzer , Christopher R. Gelino , Jozsef Vinko , Andras Peter Joo , Andras Pal , Reka Konyves-Toth , Levente Kriskovics , Robert Szakats , Krisztian Vida , WeiKang Zheng , Thomas G. Brink , Alexei V. Filippenko

The Nature of the Strong 24 micron Spitzer Source J222557+601148: Not a Young Galactic Supernova Remnant

The nebula J222557+601148, tentatively identified by Morris et al. (2006) as a young Galactic supernova remnant (SNR) from Spitzer Galactic First Look Survey images and a follow-up mid-infrared spectrum, is unlikely to be a SNR remnant…

Solar and Stellar Astrophysics · Physics 2015-05-18 Robert Fesen , Dan Milisavljevic

Hydrogen-poor superluminous stellar explosions

Supernovae (SNe) are stellar explosions driven by gravitational or thermonuclear energy, observed as electromagnetic radiation emitted over weeks or more. In all known SNe, this radiation comes from internal energy deposited in the…

Cosmology and Nongalactic Astrophysics · Physics 2011-06-08 R. M. Quimby , S. R. Kulkarni , M. M. Kasliwal , A. Gal-Yam , I. Arcavi , M. Sullivan , P. Nugent , R. Thomas , D. A. Howell , E. Nakar , L. Bildsten , C. Theissen , N. Law , R. Dekany , G. Rahmer , D. Hale , R. Smith , E. O. Ofek , J. Zolkower , V. Velur , R. Walters , J. Henning , K. Bui , D. McKenna , D. Poznanski , S. B. Cenko , D. Levitan

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

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

LOSS's First Supernova? New Limits on the "Impostor" SN 1997bs

We present new, late-time Hubble Space Telescope and Spitzer Space Telescope observations of the archetypal supernova (SN) impostor SN 1997bs. We show that SN 1997bs remains much fainter than its progenitor, posing a challenge for the…

Solar and Stellar Astrophysics · Physics 2015-08-06 Scott M. Adams , C. S. Kochanek