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Supernova (SN) iPTF13bvn in NGC 5806 was the first Type Ib SN to have been tentatively associated with a progenitor in pre-explosion images. We performed deep ultraviolet (UV) and optical Hubble Space Telescope observations of the SN site similar to 740 days after explosion. We detect an object i...


Folatelli, GastónVan Dyk, Schuyler D.Kuncarayakti, HanindyoMaeda, KeiichiBersten, Melina C.Nomoto, Ken'ichiPignata, GiulianoHamuy, MarioQuimby, Robert M.Zheng, WeiKangFilippenko, Alexei V.Clubb, Kelsey I.Smith, NathanElias-Rosa, NancyFoley, Ryan J.Miller, Adam A.[DISAPPEARANCE OF THE PROGENITOR OF SUPERNOVA iPTF13bvn]DISAPPEARANCE OF THE PROGENITOR OF SUPERNOVA iPTF13bvn

ABSTRACT We study the properties of low–velocitymaterial in the line of sight towards nearby Type Ia Supernovae (SNe Ia) that have measured late phase nebular velocity shifts (vneb), thought to be an environment–independent observable. We have found that the distribution of equivalent widths of n...


Forster, FranciscoGonzález–Gaitán, SantiagoAnderson, JosephMarchi, SebastiánGutiérrez, Claudia P.Hamuy, MarioPignata, GiulianoCartier, Régis[Evidence for asymmetric distribution of circumstellar material around type ia supernovae.]Evidence for asymmetric distribution of circumstellar material around type ia supernovae.

Milisavljevic, DanMargutti, RaffaellaSoderberg, Alicia M.Pignata, GiulianoChomiuk, LauraFesen, Robert A.Bufano, FilomenaSanders, Nathan E.Parrent, Jerod T.Parker, StuartPickering, TimothyBuckley, David A. H.Crawford, Steven M.Gulbis, Amanda A. S.Hettlage, ChristianHooper, EricNordsieck, Kenneth H.O'Donoghue, DarraghHusser, Tim-OliverPotter, StephenKniazev, AlexeiKotze, PaulRomero-Colmenero, EncarniVaisanen, PetriWolf, MarshaBartel, NorbertBietenholz, Michael F.Fransson, ClaesMazzali, PaoloBrunthaler, AndreasChakraborti, SayanLevesque, Emily M.MacFayden, AndrewDrescher, ColinBock, GregMarples, PeterAnderson, Joseph P.Benetti, StefanoReichart, DanielIvarsen, Kevin[Multi-wavelength observations of supernova 2011ei: time-dependent classification of type iib and ib supernovae and implications for their progenitors]Multi-wavelength observations of supernova 2011ei: time-dependent classification of type iib and ib supernovae and implications for their progenitors

We present observations of supernova (SN) 2008ge, which is spectroscopically similar to the peculiar SN 2002cx, and its pre-explosion site that indicate that its progenitor was probably a white dwarf. NGC 1527, the host galaxy of SN 2008ge, is an S0 galaxy with no evidence of star formation or ma...


Foley, Ryan J.Rest, ArminStritzinger, MaximilianPignata, GiulianoAnderson, Joseph P.Hamuy, MarioMorrell, Nidia I.Phillips, Mark M.Salgado, Francisco[On the progenitor and supernova of the sn 2002cx-like supernova 2008ge]On the progenitor and supernova of the sn 2002cx-like supernova 2008ge

Bufano, FilomenaPian, ElenaSollerman, JesperBenetti, StefanoPignata, GiulianoValenti, StefanoCovino, StefanoD’Avanzo, PaoloMalesani, DanieleEnrico, CappellaroDella Valle, MassimoFynbo, JohanHjorth, JensMazzali, Paolo A.Reichart, Daniel E.Starling, Rhaana L. C.Turatto, MassimoVergani, Susanna D.Wiersema, KlassAmati, LorenzoBersier, DavidCampana, SergioCano, ZachCastro-Tirado, Alberto J.Chincarini, GuidoD’Elia, Valeriode Ugarte, AntonioPostigo, Deng, JinsongFerrero, PatriziaAlexei V., FilippenkoGoldoni, PaoloGorosabel, JavierGreiner, JochenHammer, FrancoisJakobsson, PallKaper, LexKawabata, Koji S.Klose, SylvioLevan, Andrew J.Maeda, KeiichiMasetti, NicolaMilvang-Jensen, BoMirabel, Felix I.Moller, PalleNomoto, Ken’ichiPalazzi, ElianaPiranomonte, SilviaSalvaterra, RubenStratta, GiuliaTagliaferri, GianpieroTanaka, MasaomiTanvir, Nial R.Wijers, Ralph A.M.J.[The Highly Energetic Expansion of SN2010bh Associated with GRB100316D]The Highly Energetic Expansion of SN2010bh Associated with GRB100316D

We have detected, for the first time, Cepheid variables in the Sculptor Group spiral galaxy NGC 7793. From wide-field images obtained in the optical V and I bands on 56 nights in 2003-2005, we have discovered 17 long-period (24-62 days) Cepheids whose periods and mean magnitudes define tight per...


Pietrzynski, GrzegorzGieren, WolfgangHamuy, MarioPignata, GiulianoSoszynski, IgorUdalski, AndrzejWalker, AlistairFouque, PascalBresolin, FabioKudritzki, Rolf-Peter[The Araucaria Project. First Cepheid Distance to the Sculptor Group Galaxy NGC 7793 from Variables discovered in a Wide-Field Imaging Survey]The Araucaria Project. First Cepheid Distance to the Sculptor Group Galaxy NGC 7793 from Variables discovered in a Wide-Field Imaging Survey

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