Now showing items 41-60 of 134

    • A hubble diagram from TYPE II supernovae based solely on photometry: the photometric color method 

      De Jaeger, Thomas; González Gaitán, Sebastián; Anderson, J. P.; Galbany, Lluis; Hamuy Wackenhut, Mario; Phillips, M. M.; Stritzinger, M.; Gutiérrez, C.; Bolt, L.; Burns, C.; Campillay, A.; Castellón, S.; Contreras, C.; Folatelli, Gastón; Freedman, W. L.; Hsiao, Eric; Krisciunas, K.; Krzeminski, W.; Kuncarayakti, Hanindyo; Morrell, N.; Olivares, F.; Persson, S.; Suntzeff, Nicholas B. (The American Astronomical Society, 2015-12-20)
      We present a Hubble diagram of SNe II using corrected magnitudes derived only from photometry, with no input of spectral information. We use a data set from the Carnegie Supernovae Project I for which optical and ...
    • A Hubble diagram of distant type IA supernovae 

      Hamuy Wackenhut, Mario; Phillips, M. M.; Maza Sancho, José; Suntzeff, Nicholas B.; Schommer, R. A.; Avilés, R. (1995-01)
      We have constructed Hubble diagrams in B and V for 13 Type Ia supernovae (SNe Ia) found in the course of the Calan/Tololo survey covering an unprecedented range in redshift (0.01 less than Z less than 0.1). As opposed to ...
    • The Hubble diagram of the Calan/Tololo type Ia supernovae and the value of H-0 

      Hamuy Wackenhut, Mario; Phillips, M. M.; Suntzeff, Nicholas B.; Schommer, Robert A.; Maza Sancho, José; Avilés, R. (1996-12-06)
      The Calan/Tololo supernova survey has discovered similar to 30 type Ia supernovae at redshifts out to z similar to 0.1. Using BV(I)(KC) data for these objects and nearby SNe Ia, we have shown that there exists a significant ...
    • HYDRODYNAMICAL MODELS OF TYPE II PLATEAU SUPERNOVAE 

      Bersten, Melina; Benvenuto, Omar; Hamuy Wackenhut, Mario (American Astronomical Society, 2011-03-01)
      We present bolometric light curves of Type II plateau supernovae obtained using a newly developed, one-dimensional Lagrangian hydrodynamic code with flux-limited radiation diffusion. Using our code we calculate the ...
    • Hα Spectral Diversity of Type II Supernovae: Correlations with Photometric Properties 

      Gutiérrez, Claudia P.; Anderson, Joseph P.; Hamuy Wackenhut, Mario; González Gaitán, Santiago; Folatelli, Gastón; Morrell, Nidia; Stritzinger, Maximilian D.; Phillips, Mark M.; MoroMartín, Amaya; Suntzeff, Nicholas B.; homas-Osip, Joanna T. (The American Astronomical Society, 2014-05-10)
      We present a spectroscopic analysis of the Hα profiles of hydrogen-rich Type II supernovae. A total of 52 Type II supernovae having well-sampled optical light curves and spectral sequences were analyzed. Concentrating on ...
    • Independent evidence for the cosmic acceleration from Type II Supernovae 

      De Jaeger, Thomas (Universidad de Chile, 2016)
      El trabajo de tesis se titula Evidencia independiente de acceleración cósmica a partir de supernovas de tipo II ; y tiene como objetivo estudiar la utilidad de las supernovas de tipo II como indicadores de distancias ...
    • INTERACTING SUPERNOVAE AND SUPERNOVA IMPOSTORS: SN 2009ip, IS THIS THE END? 

      Pastorello, A.; Cappellaro, E.; Inserra, C.; Smartt, S. J.; Pignata Libralato, Giuliano; Benetti, S.; Valenti, S.; Fraser, M.; Takáts, K.; Benítez Seguel, Susana Alejandra; Botticella, María Teresa; Brimacombe, J.; Bufano, Filomena; Cellier Holzem, F.; Costado, M. T.; Cupani, G.; Curtis, I.; Elias Rosa, N.; Ergon, M.; Fynbo, J. P.; Hambsch, F. J.; Hamuy Wackenhut, Mario; Harutyunyan, A.; Ivarson, K. M.; Kankare, E.; Martin, J. C.; Kotak, R.; LaCluyze, Aaron P.; Maguire, K.; Mattila, S.; Maza Sancho, José; McCrum, M.; Miluzio, M.; Norgaard Nielsen, H. U.; Nysewander, M. C.; Ochner, P.; Pan, Y. C.; Pumo, M. L.; Reichart, D. E.; Tan, T. G.; Taubenberger, S.; Tomasella, L.; Turatto, M.; Wright, D. (The American Astronomical Society, 2013-04)
      We report the results of a three-year-long dedicated monitoring campaign of a restless luminous blue variable (LBV) in NGC 7259. The object, named SN 2009ip, was observed photometrically and spectroscopically in the optical ...
    • Linking type Ia supernova progenitors and their resulting explosions 

      Foley, Ryan J.; Simon, Joshua D.; Burns, Christopher R.; Gal Yam, Avishay; Hamuy Wackenhut, Mario; Kirshner, Robert P.; Morrell, Nidia I.; Phillips, Mark M.; Shields, Gregory A.; Sternberg, Assaf (2012-06-20)
      Comparing the ejecta velocities at maximum brightness and narrow circumstellar/interstellar Na D absorption line profiles of a sample of 23 Type Ia supernovae (SNe Ia), we determine that the properties of SN Ia progenitor ...
    • Low luminosity Type II supernovae - II. Pointing towards moderate mass precursors 

      Spiro, S.; Pastorello, A.; Pumo, M. L.; Zampieri, L.; Turatto, M.; Smartt, S. J.; Benetti, S.; Cappellaro, E.; Valenti, S.; Agnoletto, I.; Altavilla, G.; Aoki, T.; Brocato, E.; Corsini, E. M.; Di Cianno, A.; Elias Rosa, N.; Hamuy Wackenhut, Mario; Enya, K.; Fiaschi, M.; Folatelli, Gastón; Desidera, S.; Harutyunyan, A.; Howell, D. A.; Kawka, A.; Kobayashi, Y.; Leibundgut, B.; Minezaki, T.; Navasardyan, H.; Nomoto, K.; Mattila, S.; Pietrinferni, A.; Pignata Libralato, Giuliano; Raimondo, G.; Salvo, M.; Schmidt, B. P.; Sollerman, J.; Spyromilio, J.; Taubenberger, S.; Valentini, G.; Vennes, S.; Yoshii, Y. (Royal Astronomical Society, 2014-04-11)
      We present new data for five underluminous Type II-plateau supernovae (SNe IIP), namely SN 1999gn, SN 2002gd, SN 2003Z, SN 2004eg and SN 2006ov. This new sample of low-luminosity SNe IIP (LL SNe IIP) is analysed together ...
    • Low luminosity Type II supernovae – II. Pointing towards moderate mass precursors 

      Spiro, S.; Pastorello, A.; Pumo, M. L.; Zampieri, L.; Turatto, M.; Smartt, S. J.; Benetti, S.; Cappellaro, E.; Valenti, S.; Agnoletto, I.; Altavilla, G.; Aoki, T.; Brocato, E.; Corsini, E. M.; Di Cianno, A.; Eliás Rosa, N.; Hamuy Wackenhut, Mario; Enya, K.; Fiaschi, M.; Folatelli, Gastón; Desidera, S.; Harutyunyan, A.; Howell, D. A.; Kawka, A; Kobayashi, Y.; Leibundgut, B.; Minezaki, T.; Navasardyan, H.; Nomoto, K.; Mattila, S.; Pietrinferni, A.; Pignata Libralato, Giuliano; Raimondo, G.; Salvo, M.; Schmidt, B. P.; Sollerman, J.; Spyromilio, J.; Taubenberger, S.; Valentini, G.; Vennes, S.; Yoshii, Y. (Oxford University Press, 2014)
      We present new data for five underluminous Type II-plateau supernovae (SNe IIP), namely SN 1999gn, SN 2002gd, SN 2003Z, SN 2004eg and SN 2006ov. This new sample of lowluminosity SNe IIP (LL SNe IIP) is analysed together ...
    • The luminous Type Ic supernova 1992ar at z=0.145 

      Clocchiatti, Alejandro; Phillips, Mark M.; Suntzeff, Nicholas B.; Della Valle, Massimo; Cappellaro, Enrico; Turatto, Massimo; Hamuy Wackenhut, Mario; Avilés, Roberto; Navarrete, Mauricio; Smith, Chris; Rubenstein, Eric P.; Covarrubias, Ricardo; Stetson, Peter B.; Maza Sancho, José; Riess, Adam G.; Zanin, Caterina (2000-02-01)
      We present spectroscopic and photometric observations of SN 1992ar, the most distant supernova (SN) in the Cala n/Tololo Survey. We compare its spectrum with those of nearby Type Ia and Ic SNe and conclude that the ...
    • El método de patrones lumínicos estandarizables para supernovas tipo II-P 

      Olivares Estay, Felipe Andrés (Universidad de Chile, 2008)
      Durante el desarrollo de esta tesis estudiamos el Método de Patrones Lumínicos Estandarizables (SCM) para supernovas Tipo II “plateau" haciendo uso de fotometría BVRI y espectroscopía óptica. Se implementó un procedimiento ...
    • A Missing-link in the Supernova–GRB Connection: The Case of SN 2012ap 

      Chakrabort, Sayan; Soderberg, Alicia; Chomiuk, Laura; Kamble, Atish; Yadav, Naveen; Ray, Alak; Hurley, Kevin; Margutti, Raffaella; Milisavljevic, Dan; Bietenholz, Michael; Brunthaler, Andreas; Pignata Libralato, Giuliano; Pian, Elena; Mazzali, Paolo; Fransson, Claes; Bartel, Norbert; Hamuy Wackenhut, Mario; Levesque, Emily; MacFadyen, Andrew; Dittmann, Jason; Krauss, Miriam; Briggs, M.S.; Connaughton, V.; Yamaoka, K.; Takahashi, T.; Ohno, M.; Fukazawa, Y.; Tashiro, M.; Terada, Y.; Murakam, T.; Goldsten, J.; Barthelmy, S.; Gehrels, N.; Cummings, J.; Krimm, H.; Palmer, D.; Golenetskii, S.; Aptekar, R.; Frederiks, D.; Cline, T.; Mitrofanov, I. G.; Golovin, D.; Litvak, M. L.; Sanin, A. B.; Boynton, W.; Fellows, C.; Harshman, K.; Enos, H.; von Kienlin, A.; Rau, A.; Zhang, X.; Savchenko, V. (The American Astronomical Society, 2015-06-01)
      Gamma-ray bursts (GRBs) are characterized by ultra-relativistic outflows, while supernovae are generally characterized by non-relativistic ejecta. GRB afterglows decelerate rapidly, usually within days, because their ...
    • Monitoreo Óptico de Causares Luminosos de Alto Redshift 

      Botti Rojas, Ismael Andrés (Universidad de ChileCyberDocs, 2011)
    • The morphology of type Ia supernovae light curves 

      Hamuy Wackenhut, Mario; Phillips, M. M.; Suntzeff, Nicholas B.; Schommer, Robert A.; Maza Sancho, José; Smith, R. C.; Lira Teillery, Paulina; Avilés, R. (1996-12)
      We present a family of six BVI template light curves for SNe Ia for days -5 and +80, based on high-quality data gathered at CTIO. These templates display a wide range of light-curve morphologies, with initial decline rates ...
    • Multiwavelength observations of the Type IIb supernova 2009mg 

      Oates, S. R.; Bayless, A. J.; Stritzinger, M. D.; Prichard, T.; Prieto, J. L.; Immler, S.; Brown, P. J.; Breeveld, A. A.; De Pasquale, M.; Kuin, N. P. M.; Hamuy Wackenhut, Mario; Holland, S. T.; Taddia, F.; Roming, P. W. A. (WILEY-BLACKWELL, 2012-08)
      We present Swift Ultra-Violet Optical Telescope and X-Ray Telescope (XRT) observations, and visual wavelength spectroscopy of the Type IIb supernova (SN) 2009mg, discovered in the Sb galaxy ESO 121-G26. The observational ...
    • Nebular phase observations of the type-Ib supernova iPTF13bvn favour a binary progenitor 

      Kuncarayakti, Hanindyo; Maeda, Keiichi; Bersten, Melina Cecilia; Folatelli, Gastón; Morrell, Nidia; Hsiao, Eric; González Gaitán, Santiago; Anderson, J. P.; Hamuy Wackenhut, Mario; De Jaeger, Thomas; Gutiérrez, C. P.; Kawabata, K. S. (EDP Sciences, 2015)
      Aims. We present and analyse late-time observations of the Type-Ib supernova with possible pre-supernova progenitor detection, iPTF13bvn, which were done similar to 300 days after the explosion. We discuss them in the ...
    • A new distance to the Antennae galaxies (NGC 4038/39) based on the type Ia supernova 2007sr 

      Schwaizer, Francois; Burns, Christopher R.; Madore, Barry F.; Mager, VIiolet A.; Phillips, M. M.; Freedman, Wendy L.; Boldt, Luis; Contreras, Carlos; Folatelli, Gastón; González Tagle, Sergio; Hamuy Wackenhut, Mario; Krzeminski, Wojtek; Morrell, Nidia; Persson, S. E.; Roth, Miguel; Stritzinger, Maximilian D. (2008-10)
      Traditionally, the distance to NGC 4038/39 has been derived from the systemic recession velocity, yielding about 20 Mpc for H0 = 72 km s-1 Mpc-1. Recently, this widely adopted distance has been challenged based on ...
    • The normal Type Ia SN 2003hv out to very late phases 

      Leloudas, G.; Stritzinger, M. D.; Sollerman, J.; Burns, C. R.; Kozma, C.; Krisciunas, K.; Maund, J. R.; Milne, P.; Filippenko, A. V.; Fransson, C.; Ganeshalingam, M.; Hamuy Wackenhut, Mario; Li, W.; Phillips, M. M.; Schmidt, B. P.; Skottfelt, J.; Taubenberger, S.; Boldt, L.; Fynbo, J. P. U.; Gonzalez, L.; Salvo, M.; Thomas-Osip, J. (EDP Sciences, 2009-10)
      Aims. We study a thermonuclear supernova (SN), emphasizing very late phases. Methods. An extensive dataset for SN 2003hv that covers the flux evolution from maximum light to day + 786 is presented. This includes 82 ...
    • Observational constraints on the progenitor metallicities of core-collapse supernovae 

      Anderson, Joseph P.; Covarrubias, R. A.; James, P. A.; Hamuy Wackenhut, Mario; Habergham, S. M. (Royal Astronomical Society, 2010)
      We present constraints on the progenitor metallicities of core-collapse supernovae. To date, nearly all metallicity constraints have been inferred from indirect methods such as metallicity gradients in host galaxies, ...