Now showing items 1-18 of 18

    • Carnegie supernova project-II: The near-infrared spectroscopy program 

      Hsiao, E. Y.; Phillips, M. M.; Marion, G. H.; Kirshner, R. P.; Morrell, N.; Sand, D. J.; Burns, C. R.; Contreras, C.; Hoeflich, P.; Stritzinger, M. D.; Valenti, S.; Anderson, J. P.; Ashall, C.; Baltay, C.; Baron, E.; Banerjee, D. P.K.; Davis, S.; Diamond, T. R.; Folatelli, Gastón (Institute of Physics Publishing, 2019)
      Shifting the focus of Type Ia supernova (SN Ia) cosmology to the near infrared (NIR) is a promising way to significantly reduce the systematic errors, as the strategy minimizes our reliance on the empirical width-luminosity ...
    • Carnegie Supernova Project: Observations of Type IIn supernovae 

      Taddia, F.; Stritzinger, M.; Sollerman, J.; Phillips, M. M.; Anderson, J. P.; Boldt, L.; Campillay, A.; Castellón, S.; Contreras, C.; Folatelli, Gastón; Hamuy Wackenhut, Mario; Heinrich-Josties, E.; Krzeminski, W.; Morrell, N.; Burns, C.; Freedman, W.; Madore, B.; Persson, S.; Suntzeff, Nicholas B. (EDP Sciences, 2013-04-10)
      Aims. The observational diversity displayed by various Type IIn supernovae (SNe IIn) is explored and quantified. In doing so, a more coherent picture ascribing the variety of observed SNe IIn types to particular progenitor ...
    • Comprehensive observations of the bright and energetic Type lax SN 2012Z: Interpretation as a Chandrasekhar mass white dwarf explosion 

      Stritzinger, M.; Valenti, S.; Hoeflich, P.; Baron, E.; Phillips, M.; Taddia, F.; Foley, R.; Hsiao, Eric; Jha, S.; McCully, C.; Pandya, V.; Simon, J.; Benetti, S.; Brown, P.; Burns, C.; Campillay, A.; Contreras, C.; Förster Burón, Francisco; Holmbo, S.; Marion, G.; Morrell, N.; Pignata Libralato, Giuliano (EDP Sciences, 2015)
      We present ultraviolet through near-infrared (NIR) broadband photometry, and visual-wavelength and NIR spectroscopy of the Type lax supernova (SN) 2012Z. The data set consists of both early- and late-time observations, ...
    • Contrasting records from mantle to surface of Holocene lavas of two nearby arc volcanic complexes: Caburgua-Huelemolle Small Eruptive Centers and Villarrica Volcano, Southern Chile 

      Morgado, E.; Parada, M. A.; Contreras, C.; Castruccio Álvarez, Angelo; Gutiérrez, F.; McGee, L. E. (Elsevier, 2015)
      Most of the small eruptive centers of the Andean Southern Volcanic Zone are built over the Liquine-Ofqui Fault Zone (LOFZ), a NS strike-slip (>1000 km length) major structure, and close to large stratovolcanoes. This ...
    • 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 ...
    • Observed type II supernova colours from the carnegie supernova project-I 

      De Jaeger, Thomas; Anderson, J. P.; Galbany, Lluis; González Gaitán, Santiago; Hamuy Wackenhut, Mario; Phillips, M. M.; Stritzinger, M. D.; Contreras, C.; Folatelli, Gastón; Gutiérrez, C. P.; Hsiao, E. Y.; Morrell, N.; Suntzeff, Nicholas B.; Dessart, L.; Filippenko, A. V. (Oxford University Press, 2018-06)
      We present a study of observed Type II supernova (SN II) colours using optical/near-infrared photometric data from the Carnegie Supernovae Project-I. We analyse four colours (B - V, u - g, g - r, and g - Y) and find that ...
    • Optical and near-IR observations of the faint and fast 2008ha-like supernova 2010ae 

      Stritzinger, M. D.; Hsiao, Eric; Valenti, S.; Taddia, F.; Rivera Thorsen, T. J.; Leloudas, G.; Maeda, K.; Pastorello, A.; Phillips, M. M.; Pignata Libralato, Giuliano; Baron, E.; Burns, C. R.; Contreras, C.; Folatelli, Gastón; Hamuy Wackenhut, Mario; Höflich, P.; Morrell, N.; Prieto, J. L.; Benetti, S.; Campillay, A.; Haislip, Joshua B.; LaClutze, A. P.; Moore, J. P.; Reichart, D. E. (ESO, 2014)
      A comprehensive set of optical and near-infrared (NIR) photometry and spectroscopy is presented for the faint and fast 2008halike supernova (SN) 2010ae. Contingent on the adopted value of host extinction, SN 2010ae reached ...
    • PESSTO: survey description and products from the first data release by the Public ESO Spectroscopic Survey of Transient Objects 

      Smartt, S. J.; Valenti, S.; Fraser, M.; Inserra, C.; Young, D. R.; Sullivan, M.; Pastorello, A.; Benetti, S.; Gal-Yam, A.; Knapic, C.; Molinaro, M.; Smareglia, R.; Smith, K.W.; Taubenberger, S.; Yaron, O.; Anderson, J. P.; Ashall, C.; Balland, C.; Baltay, C.; Barbarino, C.; Bauer, Franz Erik; Baumont, S.; Bersier, D.; Blagorodnova, N.; Bongard, S.; Botticella, M.-T.; Bufano, F.; Bulla, M.; Cappellaro, E.; Campbell, H.; Cellier Holzem, F.; Chen, T. W.; Childress, M. J.; Clocchiatti, A.; Contreras, C.; Dall’Ora, M.; Danziger, J.; De Jaeger, Thomas; De Cia, A.; Della Valle, M.; Dennefeld, M.; Elias Rosa, N.; Elman, N.; Feindt, U.; Fleury, M.; Gall, E.; González Gaitán, Santiago; Galbany, Lluis; Morales Garoffolo, A.; Greggio, L.; Guillou, L. L.; Hachinger, S.; Hadjiyska, E.; Hage, P. E.; Hillebrandt, W.; Hodgkin, S.; Hsiao, E. Y.; James, P. A.; Jerkstrand, A.; Kangas, T.; Kankare, E.; Kotak, R.; Kromer, M.; Kuncarayakti, H.; Leloudas, G.; Lundqvist, P.; Lyman, J. D.; Hook, I. M.; Maguire, K.; Manulis, I.; Margheim, S.; Mattila, S.; Maund, J. R.; Mazzali, P.; McCrum, M.; McKinnon, R.; Moreno Raya, M. E.; Nicholl, M.; Nugent, P. E.; Pain, R.; Pignata Libralato, Giuliano; Phillips, M. M.; Polshaw, J.; Pumo, M. L.; Rabinowitz, D.; Reilly, E.; Romero Cañizales, C.; Scalzo, R.; Schmidt, B.; Schulze, Steve; Sim, S. A.; Sollerman, J.; Taddia, F.; Tartaglia, L.; Terreran, G.; Tomasella, L.; Turatto, M.; Walker, E.; Walton, N. A.; Wyrzykowski, L.; Yuan, F.; Zampieri, L. (EDP Sciences, 2015)
      Context. The Public European Southern Observatory Spectroscopic Survey of Transient Objects (PESSTO) began as a public spectroscopic survey in April 2012. PESSTO classifies transients from publicly available sources and ...
    • Sistema de control de gestión basado en la técnica del valor ganado: presentación de un nuevo estimador de tiempo de término de proyectos en ejecución 

      Contreras C., José E. (Universidad de Chile, 2007)
      El objetivo general de este trabajo es la aplicación de un sistema de control a un proyecto del área ingenieril basado en la ingeniería del EV.
    • SN 2011hs: a fast and faint Type IIb supernova from a supergiant progenitor 

      Bufano, Filomena; Pignata Libralato, Giuliano; Bersten, M.; Mazzali, Paolo; Ryder, S. D.; Margutti, R.; Milisavljevic, D.; Morelli, L.; Benetti, S.; Cappellaro, E.; González Gaitán, E.; Romero Canizales, C.; Stritzinger, M.; Walker, E. S.; Anderson, J. P.; Contreras, C.; De Jaeger, Thomas; Forster, Francisco; Gutiérrez, Claudia P.; Hamuy Wackenhut, Mario; Hsiao, Eric; Morrell, N.; Olivares, F.; Paillas, E.; Parker, S.; Pian, E.; Pickering, T. E.; Sanders, N.; Stockdale, C.; Turatto, M.; Valenti, S.; Fesen, R. A.; Maza Sancho, José; Nomoto, K.; Phillips, M. M.; Soderberg, A. (Royal Astronomical Society, 2014)
      Observations spanning a large wavelength range, from X-ray to radio, of the Type IIb supernova (SN) 2011hs are presented, covering its evolution during the first year after explosion. The optical light curve presents a ...
    • Strong near-infrared carbon in the Type Ia supernova iPTF13ebh 

      Hsiao, Eric; Burns, C.R.; Contreras, C.; Höflich, P.; Sand, D.; Marion, G.H.; Phillips, M. M.; Stritzinger, M.; González Gaitán, Santiago; Mason, R. E.; Folatelli, Gastón; Parent, E.; Gall, C.; Amanullah, R.; Anupama, G. C.; Arcavi, I.; Banerjee, D. P. K.; Beletsky, Y.; Blanc Mendiberri, Guillermo; Bloom, J. S.; Brown, P. J.; Campillay, A.; Cao, Y.; Cia, A. de; Diamond, T.; Freedman, W. L.; González, C.; Goobar, A.; Holmbo, S.; Howell, D. A.; Johansson, J.; Kasliwal, M. M.; Kirshner, R. P.; Krisciunas, K.; Kulkarni, S. R.; Maguire, K.; Milne, P. A.; Morrell, N.; Nugent, P. E.; Ofek, E. O.; Osip, D.; Palunas, P.; Perley, D. A.; Persson, S. E.; Piro, A. L.; Rabus, M.; Roth, M.; Schiefelbein, J. M.; Srivastav, S.; Sullivan, M.; Suntzeff, Nicholas B.; Surace, J.; Wózniak, P. R.; Yaron, O. (ESO, 2015)
      We present near-infrared (NIR) time-series spectroscopy, as well as complementary ultraviolet (UV), optical, and NIR data, of the Type Ia supernova (SN Ia) iPTF13ebh, which was discovered within two days from the estimated ...
    • Strong near-infrared carbon in the Type Ia supernova iPTF13ebh 

      Hsiao, Eric; Burns, C. R.; Contreras, C.; Höflich, P.; Sand, D.; Marion, G. H.; Phillips, M. M.; Stritzinger, M.; González Gaitán, Francisco; Mason, R. E.; Folatelli, Gastón; Parent, E.; Gall, C.; Amanullah, R.; Anupama, G. C.; Arcavi, I.; Banerjee, D. P. K.; Beletsky, Y.; Blanc Mendiberri, Guillermo; Bloom, J. S.; Brown, P. J.; Campillay, A.; Cao, Y.; De Cia, A.; Diamond, T.; Freedman, W. L.; González, C.; Goobar, A.; Holmbo, S.; Howell, D. A.; Johansson, J.; Kasliwal, M. M.; Kirshner, R. P.; Krisciunas, K.; Kulkarni, S. R.; Maguire, K.; Milne, P. A.; Morrell, N.; Nugent, P. E.; Ofek, E. O.; Osip, D.; Palunas, P.; Perley, D. A.; Persson, S. E.; Piro, A. L.; Rabus, M.; Roth, M.; Schiefelbein, J. M.; Srivastav, S.; Sullivan, M.; Suntzeff, Nicholas B.; Surace, J.; Woźniak, P. R.; Yaron, O. (EDP Sciencies, 2015-03-03)
      We present near-infrared (NIR) time-series spectroscopy, as well as complementary ultraviolet (UV), optical, and NIR data, of the Type Ia supernova (SN Ia) iPTF13ebh, which was discovered within two days from the estimated ...
    • Supernova 2008J: early time observations of a heavily reddened SN 2002ic-like transient 

      Taddia, F.; Stritzinger, M. D.; Phillips, M. M.; Burns, C. R.; Heinrich Josties, E.; Morrell, N.; Sollerman, J.; Valenti, S.; Anderson, J. P.; Boldt, L.; Campillay, A.; Castellón, S.; Contreras, C.; Folatelli, Gastón; Freedman, W. L.; Hamuy Wackenhut, Mario; Krzeminski, W.; Leloudas, G.; Maeda, K.; Persson, S. E.; Roth, M.; Suntzeff, Nicholas B. (2012)
      Aims. We provide additional observational evidence that some Type Ia supernovae (SNe Ia) show signatures of circumstellar interaction (CSI) with hydrogen-rich material. Methods. Early phase optical and near-infrared (NIR) ...
    • The Carnegie Supernova Project I photometry data release of low-redshift stripped envelope supernovae 

      Stritzinger, M. D.; Anderson, J. P.; Contreras, C.; Hamuy Wackenhut, Mario (EDP Sciences, 2018)
      The first phase of the Carnegie Supernova Project (CSP-I) was a dedicated supernova follow-up program based at the Las Campanas Observatory that collected science data of young, low-redshift supernovae between 2004 and ...
    • The lowest-metallicity type II supernova from the highest-mass red supergiant progenitor 

      Anderson, P.; Dessart, L.; Gutierrez, C.; Kruhler, T.; Galbany, Lluis; Jerkstrand, A.; Smartt, S.; Contreras, C.; Morrell, N.; Phillips, M.; Stritzinger, M.; Hsiao, E.; González Gaitán, Santiago; Agliozzo, C.; Castellon, Sergio; Chambers, K.; Chen, T.; Flewelling, H.; González, C.; Hosseinzadeh, G.; Huber, M.; Fraser, M.; Inserra, C.; Kankare, E.; Mattila, S.; Magnier, E.; Maguire, K.; Lowe, T.; Sollerman, J.; Sullivan, M.; Young, D.; Valenti, S. (Nature Publishing Group, 2018-07)
      Red supergiants have been confirmed as the progenitor stars of the majority of hydrogen-rich type II supernovae(1). However, while such stars are observed with masses > 25 M-circle dot (ref. (2)), detections of > 18 M-circle ...
    • Transient shallow reservoirs beneath small eruptive centres: Constraints from Mg-Fe interdiffusion in olivine 

      Morgado, E.; Parada Reyes, Miguel; Morgan, D. J.; Gutiérrez, F.; Castruccio, A.; Contreras, C. (Elsevier, 2017)
      Small eruptive centres commonly have more primitive lavas than those associated with stratovolcanoes, an observation that has been taken to indicate a short magma residence in the crust relative to those reservoirs below ...
    • The underluminous Type Ia supernova 2005bl and the class of objects similar to SN 1991bg 

      Taubenberger, S.; Hachinger, S.; Pignata Libralato, Giuliano; Mazzali, Paolo; Contreras, C.; Valenti, S.; Pastorello, A.; Elias Rosa, L.; Bärnbantner, O.; Barwig, H.; Benetti, S.; Dolci, M.; Fliri, J.; Folatelli, Gastón; Freedman, W. L.; González, S.; Hamuy Wackenhut, Mario; Krzeminski, W.; Morrell, N.; Navasardyan, H.; Persson, S. E.; Phillips, M. M.; Ries, C.; Roth, M.; Suntzeff, Nicholas B.; Turatto, M.; Hillebrandt, W. (2008)
      Optical observations of the Type Ia supernova (SN Ia) 2005bl in NGC 4070, obtained from −6 to +66 d with respect to the B-band maximum, are presented. The photometric evolution is characterized by rapidly declining light ...
    • VVV DR1: The first data release of the Milky Way bulge and southern plane from the near-infrared ESO public survey VISTA variables in the Via Lactea 

      Saito, R. K.; Hempel, M.; Minniti, D.; Lucas, P. W.; Rejkuba, M.; Toledo, I.; Gonzalez, O. A.; Alonso-García, J.; Irwin, M.; Gonzalez-Solares, E.; Hodgkin, S. T.; Lewis, J. R.; Cross, N.; Ivanov, V. D.; Kerins, E.; Emerson, J. P.; Soto, M.; Amôres, E. B.; Gurovich, S.; Dékány, I.; Angeloni, R.; Beamin, J. C.; Catelan, M.; Padilla, N.; Zoccali, M.; Pietrukowicz, P.; Moni Bidin, C.; Mauro, F.; Geisler, D.; Folkes, S. L.; Sale, S. E.; Borissova, J.; Kurtev, R.; Ahumada, A. V.; Alonso, M. V.; Adamson, A.; Arias, J. I.; Bandyopadhyay, R. M.; Barbá, R. H.; Barbuy, B.; Baume, G. L.; Bedin, L. R.; Bellini, A.; Benjamin, R.; Bica, E.; Bonatto, C.; Bronfman Aguiló, Leonardo; Carraro, Giovanni; Chenè, A. N.; Clariá, J. J.; Clarke, J. R. A.; Contreras, C.; Corvillón, A.; Grijs, R. de; Dias, B.; Drew, J. E.; Fariña, C.; Feinstein, C.; Fernández Lajús, E.; Gamen, R.; Gieren, W.; Goldman, B.; González-Fernández, C.; Grand, R. J. J.; Gunthardt, G.; Hambly, N. C.; Hanson, M. M.; Helminiak, K. G.; Hoare, M. G.; Huckvale, L.; Jordán, A.; Kinemuch, K.; Longmore, A.; López Corredoira, M.; Maccarone, T.; Majaess, D.; Martín, E. L.; Masetti, N.; Mennickent, R. E.; Mirabel, I. F.; Monaco, L.; Morelli, L.; Motta, V.; Palma, T.; Parisi, M. C.; Parker, Q.; Peñaloza, F.; Pietrzynski, G.; Pignata Libralato, Giuliano; Popescu, B.; Read, M. A.; Rojas, A.; Roman-Lopes, A.; Ruiz González, María Teresa; Saviane, I.; Schreiber, M. R.; Schröder, A. C.; Sharma, S.; Smith, M. D.; Sodré Jr., L.; Stead, J.; Stephens, A. W.; Tamura, M.; Tappert, C.; Thompson, M. A.; Valenti, E.; Vanzi, L.; Walton, N. A.; Weidmann, W.; Zijlstr, A. (2012-01)
      Context. The ESO public survey VISTA variables in the Vía Láctea (VVV) started in 2010. VVV targets 562 sq. deg in the Galactic bulge and an adjacent plane region and is expected to run for about five years. Aims. We ...