Browsing by Author "981007405059303936"

Now showing items 21-40 of 98

    • Evolving into a remnant: optical observations of SN 1978K at three decades 
      Kuncarayakti, Hanindyo; Maeda, Keiichi; Anderson, J. P.; Hamuy Wackenhut, Mario; Nomoto, K.; Galbany, Lluis; Doi, M. (Oxford Univ Press, 2016)
      We present new optical observations of the supernova SN 1978K, obtained in 2007 and 2014 with the Very Large Telescope. We discover that the supernova has not faded significantly, even more than three decades after its ...
    • THE EXPANDING PHOTOSPHERE METHOD APPLIED TO SN-1992AM AT CZ=14600KM-S 
      Schmidt, Brian P.; Kirshner, Robert P.; Eastman, Ronald G.; Hamuy Wackenhut, Mario; Phillips, Mark M.; Suntzeff, Nicholas B.; Maza Sancho, José; Filippenko, Alexei V.; Ho, Luis C.; Matheson, Thomas; Grashuis, Randy; Aviles, Roberto; Kirkpatrick, J. Davy; Challis, Peter; Kuijken, Konrad; Zucker, Daniel; Bolte, Michael; Tyson, Neil D. (AMER INST PHYSICS, 1994-04)
      We present photometry and spectroscopy of SN 1992am for five months following its discovery by the Calan/CTIO SN search. These data show SN 1992am to be type II-P, displaying hydrogen in its spectrum and the typical shoulder ...
    • Experimental and theoretical challenges in the search for tensor B-modes 
      Raghunathan, Srinivasan (Universidad de Chile, 2016)
      This thesis describes the work that I performed to analyse the data from the Atacama B-mode Search (ABS) experiment. The ABS experiment observed the Cosmic Microwave Background (CMB) radiation for three years using ...
    • Fixing the U-band photometry of Type Ia supernovae 
      Krisciunas, Kevin; Bastola, Deepak; Espinoza, Juan; González, David; González, Luis; González Tagle, Sergio; Hamuy Wackenhut, Mario; Hsiao, Eric; Morrell, Nidia; Phillips, Mark M.; Suntzeff, Nicholas B. (IOP Publishing, 2013)
      We present previously unpublished photometry of supernovae 2003gs and 2003hv. Using spectroscopically derived corrections to the U-band photometry, we reconcile U-band light curves made from imagery with the Cerro Tololo 0.9 ...
    • General two-dimensional least-squares image subtraction 
      Quinn, J. L.; Clocchiatti, A.; Hamuy Wackenhut, Mario (2010)
      A very general two-dimensional solution to the image convolution problem is presented extending the least-squares approach of Bramich. Image convolution is of wide applicability in astronomical data reduction including, ...
    • THE HIGH-METALLICITY EXPLOSION ENVIRONMENT OF THE RELATIVISTIC SUPERNOVA 2009BB1 
      Levesque, Emily M.; Soderberg, M.; Foley, Ryan J.; Berger, E.; Kewley, Lisa; Chakraborti, S.; Ray, Aurkie; Torres, M. A. P.; Challis, P.; Kirshner, Robert P.; Barthelmy, S. D.; Bietenholz, M. F.; Chandra, P.; Chaplin, V.; Chevalier, R. A.; Chugai, N.; Connaughton, V.; Copete, A.; Fox, O.; Fransson, C.; Grindlay, J. E.; Hamuy Wackenhut, Mario; Milne, P. A.; Pignata Libralato, Giuliano; Stritzinger, M. D.; Wieringa, M. H. (2009-12)
      We investigate the environment of the nearby (d 40 Mpc) broad-lined Type Ic supernova SN 2009bb. This event was observed to produce a relativistic outflow likely powered by a central ac- creting compact object. While ...
    • 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 ...
    • 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.; 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 ...
    • 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 ...