Browsing by Title Facultad de Ciencias Físicas y Matemáticas

Now showing items 19873-19892 of 20468

    • Type II supernovae from the Carnegie Supernova Project-I II. Physical parameter distributions from ... 
      Martínez, L.; Bersten, M. C.; Anderson, J. P.; Hamuy, M.; González Gaitán, S.; Forster Burón, Francisco; Orellana, M.; Stritzinger, M.; Phillips, M. M.; Gutiérrez, C. P.; Burns, C.; Contreras, C.; De Jaeger, T.; Ertini, K.; Folatelli, G.; Galbany, L.; Hoeflich, P.; Hsiao, E. Y.; Morrell, N.; Pessi, P. J.; Suntzeff, N. B. (EDP, 2022)
      Linking supernovae to their progenitors is a powerful method for furthering our understanding of the physical origin of their observed differences while at the same time testing stellar evolution theory. In this second ...
    • Type II supernovae from the Carnegie Supernova Project-I III. Understanding SN II diversity through ... 
      Martínez, L.; Anderson, J. P.; Bersten, M. C.; Hamuy, M.; González Gaitán, S.; Orellana, M.; Stritzinger, M.; Phillips, M. M.; Gutiérrez, C. P.; Burns, C.; De Jaeger, T.; Ertini, K.; Folatelli, G.; Forster Burón, Francisco; Galbany, L.; Hoeflich, P.; Hsiao, E. Y.; Morrell, N.; Pessi, P. J.; Suntzeff, N. B. (EDP, 2022)
      Type II supernovae (SNe II) show great photometric and spectroscopic diversity which is attributed to the varied physical characteristics of their progenitor and explosion properties. In this study, the third of a series ...
    • Type II Supernovae light curves characterization using Moriya wind acceleration hydrodynamical models 
      Silva Farfán, Javier Ignacio (Universidad de Chile, 2023)
      A pesar de ser el tipo más común de SNe, todavía hay incertidumbre en torno al origen de estos objetos. Las curvas de luz (LC) de las SNe de tipo II se ven afectadas por las propiedades de las estrellas progenitoras. Esto ...
    • Type II-P supernovae as standardized candles: improvements using near-infrared data 
      Maguire, K.; Kotak, Rubina; Smartt, S. J.; Pastorello, A.; Hamuy Wackenhut, Mario; Bufano, Filomena (2010)
      We present the first near-infrared Hubble diagram for Type II-P supernovae (SNe), to further explore their value as distance indicators.We use a modified version of the standardized candle method, which relies on the ...
    • Type IIb Supernova 2013df Entering Into An Interaction Phase: A Link Between The Progenitor And The Mass Loss 
      Maeda, Keiichi; Hattori, T.; Milisavljevic, Dan; Folatelli, Gastón; Drout, M. R.; Kuncarayakti, Hanindyo; Margutti, Raffaella; Kamble, Atish; Soderberg, Alicia; Tanaka, M.; Kawabata, M.; Kawabata, K. S.; Yamanaka, M.; Nomoto, K.; Kim, J. H.; Simon, J. D.; Phillips, M. M.; Parrent, J.; Nakaoka, T.; Moriya, T. J.; Suzuki, A.; Takaki, K.; Ishigaki, M.; Sakon, I.; Tajitsu, A.; Iye, M. (IOP Publishing, 2015)
      We report the late-time evolution of Type IIb supernova (SN IIb) 2013df. SN 2013df showed a dramatic change in its spectral features at similar to 1 yr after the explosion. Early on it showed typical characteristics shared ...
    • Type IIP supernova light curves affected by the acceleration of red supergiant winds 
      Moriya, Takashi J.; Forster, Francisco; Yoon, Sung-Chul; Graefener, Goetz; Blinnikov, Sergei I. (Oxford University Press, 2018)
      We introduce the first synthetic light-curve model set of Type IIP supernovae exploded within circumstellar media in which the acceleration of the red supergiant winds is taken into account. Because wind acceleration makes ...
    • Typing artifacts in megamodeling 
      Vignaga, Andrés; Jouault, Frédéric; Bastarrica Piñeyro, María Cecilia; Brunelière, Hugo (Springer, 2013)
      Model management is essential for coping with the complexity introduced by the increasing number and varied nature of artifacts involved in model-driven engineeringbased projects. Global model management(GMM)addresses this ...
    • U-Comunidad: Sistema automatizado que centraliza la gestión de roles organizacionales de la comunidad del ... 
      Delgado Vega, Nicolás Sebastián (Universidad de Chile, 2018)
      La comunidad del Departamento de Ciencias de la Computación de la Universidad de Chile (DCC) está compuesta por muchas personas que cumplen diferentes roles. Esta información se encontraba en diversas fuentes, varias ...
    • U-Pb ages and metamorphic evolution of the La Pampa Gneisses: Implications for the evolution of the Chilenia ... 
      Álvarez, Javier; Mpodozis Marín, Constantino; Blanco Quintero, Idael; García Casco, Antonio; Arriagada Ortega, César; Morata Céspedes, Diego (Elsevier, 2013)
      The La Pampa Gneisses are an enclave of orthogneisses emplaced within late Paleozoic to Triassic granitoids of the Chollay Batholith, in the Cordillera Frontal, to the east of Vallenar. Previous geochronological data (a ...
    • U-Pb Geochronology and Hf-O Isotopes of zircons from the Pennsylvanian Coastal Batholith, South-Central Chile 
      Deckart, Katja; Hervé Allamand, Francisco; Fanning, Mark; Ramírez, Valeria; Calderón, Mauricio; Godoy, Estanislao (2014)
      The Coastal Batholith of south-central Chile between latitudes 33° and 40°S is composed of calc-alkaline granitoids emplaced in a relatively restricted time period. New SHRIMP U-Pb zircon ages on eight quartzdioritic to ...
    • U-series dating of co-seismic gypsum and submarine paleoseismology of active faults in Northern Chile (23°S) 
      Vargas Easton, Víctor; Palacios Monasterio, Carlos; Reich Morales, Martín; Luo, Shangde; Shen, Chuan-Chou; González, Gabriel; Wu, Yi-Chen (Elsevier, 2011)
      The convergence of the Nazca and South American plates along the subduction margin of the central Andes results in large subduction earthquakes and tectonic activity along major fault systems. Despite its relevance, the ...
    • Ubiquitous Mobile Knowledge Construction in Collaborative Learning Environments 
      Baloian Tataryan, Nelson; Zurita Alarcón, Gustavo (2012)
      Knowledge management is a critical activity for any organization. It has been said to be a differentiating factor and an important source of competitiveness if this knowledge is constructed and shared among its members, ...
    • Ubiquitous velocity fluctuations throughout the molecular interstellar medium 
      Henshaw, Jonathan D.; Kruijssen, J. M. Diederik; Longmore, Steven N.; Riener, Manuel; Leroy, Adam K.; Rosolowsky, Erik; Ginsburg, Adam; Battersby, Cara; Chevance, Melanie; Meidt, Sharon E.; Glover, Simon C.O.; Hughes, Annie; Kainulainen, Jouni; Klessen, Ralf S.; Schinnerer, Eva; Schruba, Andreas; Beuther, Henrik; Bigiel, Frank; Neville Blanc Mendiberri, Guillermo; Emsellem, Eric; Henning, Thomas; Herrera, Cynthia N.; Koch, Eric W.; Pety, Jerome; Ragan, Sarah E.; Sun, Jiayi (Nature, 2020)
      Statistical analysis of velocity fluctuations in the interstellar medium (ISM) of the Milky Way and NGC 4321 show that the motion of molecular gas over scales ranging from 0.1 to 1,000 pc is similar, and consistent with ...
    • UBVRI photoelectric photometry in the fields of 15 active galaxies 
      Hamuy Wackenhut, Mario; Maza Sancho, José (The Astronomical journal, 97: 720-725, 1989, 1989-03)
      UVBRI photoelectric sequences for fifteen AGNs were obtained with 0.6, 0.9, and 1-m telescopes. The data include 473 observations for 118 stars, giving an average of 4.0 observations per star, and 7.9 stars per sequence. ...
    • UBVRIz Light Curves of 51 Type II Supernovae 
      Galbany, Lluis; Hamuy Wackenhut, Mario; Phillips, Mark M.; Suntzeff, Nicholas B.; Maza Sancho, José; De Jaeger, Thomas; Moraga, Tania; González Gaitán, Santiago; Krisciunas, Kevin; Morrell, Nidia; Thomas Osip, Joanna; Krzeminski, Wojtek; Gonzalez, Luis; Antezana, Roberto; Wishnjewski, Marina; McCarthy, Patrick; Anderson, Joseph; Gutierrez, Claudia; Stritzinger, Maximilian; Folatelli, Gastón; Anguita, Claudio; Galaz, Gaspar, 1967-; Green, Elisabeth; Impey, Chris; Kim, Yong-Cheol; Kirhakos, Sofia; Malkan, Mathew; Mulchaey, John; Phillips, Andrew; Pizzella, Alessandro; Prosser, Charles; Schmidt, Brian; Schommer, Robert; Sherry, William; Strolger, Louis; Wells, Lisa; Williger, Gerard (OP PUBLISHING, 2016)
      We present a compilation of UBVRIz light curves of 51 type II supernovae discovered during the course of four different surveys during 1986-2003: the Cerro Tololo Supernova Survey, the Calan/Tololo Supernova Program (C&T), ...
    • UChile1 Team Description Paper 
      Ruiz del Solar, Javier; Zagal Montealegre, Juan; Guerrero, Pablo; Vallejos, Paul; Middleton, Christian; Olivares, Ximena (2014-01-08)
      The U-Chile-1 four legged team is an effort of the Department of Electrical Engineering of the University of Chile in order to foster research in robotics at high level. U-Chile-1 was composed this year by a group ...
    • Ultra Deep Catalogue of Galaxy Structures in the Cosmic Evolution Survey field 
      Söchting, Ilona K.; Coldwell, Georgina V.; Clowes, Roger G.; Campusano Brown, Luis; Graham, Matthew J. (Royal Astronomical Society, 2012-04-03)
      detected using a fully automated search in the Cosmic Evolution Survey field. The detection algorithm is based on density peak extraction from a density distribution sampled usingVoronoi tessellation within overlapping ...
    • Ultra-pure digital detection of polarization for radio astronomy applications 
      Alvear Cabezón, Andrés Arturo (Universidad de Chile, 2018)
      Polarization is a key measurement within radio astronomy because its state can give insight as to the physical conditions of the source and the medium the radiation has traveled through. In radio astronomy receivers, the ...
    • Ultra-pure digital sideband separation at sub-millimeter wavelengths 
      Finger Camus, Ricardo; Mena, F. P.; Baryshev, A.; Khudchenko, A.; Rodriguez, R.; Huaracan, E.; Alvear, A.; Barkhof, J.; Hesper, R.; Bronfman Aguiló, Leonardo (EDP Sciences, 2015)
      Context. Deep spectral-line surveys in the mm and sub-mm range can detect thousands of lines per band uncovering the rich chemistry of molecular clouds, star forming regions and circumstellar envelopes, among others ...
    • Ultrafast domain wall propagation due to the interfacial Dzyaloshinskii-Moriya interaction 
      Mancilla Almonacid, D.; Jaeschke Ubiergo, R.; Núñez, A.; Allende, S. (IOP Publishing, 2020)
      It is shown that the interplay between curvature and interfacial Dzyalonshinsky-Moriya interaction (DMI) is a pathway to ultrafast domain wall (DW) dynamics in ferromagnetic nanotubes. In this work, we theoretically study ...