Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 19937-19956 of 20545
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(IOP Publishing, 2019)We investigate the effect of mixing of radioactive nickel (Ni-56) on the early-time color evolution of Type Ib and Ic supernovae (SNe Ib/Ic) using multigroup radiation hydrodynamics simulations. We consider both helium-rich ...
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(2001-06-01)We present a study of the Type Ic supernova (SN) 1990B that includes most of the observations obtained from around the world. The combined data set comprises 84 BV (RI)c photometric points spanning approximately 360 days ...
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(Walter de Gruyter GMBH, 2018)We construct new type II ancient compact solutions to the Yamabe flow. Our solutions are rotationally symmetric and converge, as t -> -infinity, to a tower of two spheres. Their curvature operator changes sign. We allow ...
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(Springer Verlag, 2019)We consider the Cauchy problem for the energy critical heat equation {ut=Δu+|u|4n−2uinRn×(0,T)u(⋅,0)=u0inRn in dimension n = 5. More precisely we find that for given points q 1 ,q 2 ,..,q k and any sufficiently small T ...
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(2014-05-11)We explore a method for metallicity determinations based on quantitative spectroscopy of Type II-Plateau supernovae (SNe II-P). For consistency, we first evolve a set of 15 M main-sequence stars at 0.1, 0.4, 1, and 2 ...
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(IOP Publishing Ltd., 2017)We present 888 visual-wavelength spectra of 122 nearby type II supernovae (SNe II) obtained between 1986 and 2009, and ranging between 3 and 363 days post-explosion. In this first paper, we outline our observations and ...
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(IOP Publishing Ltd., 2017)We present an analysis of observed trends and correlations between a large range of spectral and photometric parameters of more than 100 type II supernovae (SNe II), during the photospheric phase. We define a common epoch ...
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(Oxford University Press, 2019)Motivated by the advantages of observing at near-IR wavelengths, we investigate Type II supernovae (SNe II) as distance indicators at those wavelengths through the Photospheric Magnitude Method (PMM). For the analysis, we ...
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(EDP Sciences, 2016)Context. Spectral modelling of type II supernova atmospheres indicates a clear dependence of metal line strengths on progenitor metallicity. This dependence motivates further work to evaluate the accuracy with which these ...
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(EDP Sciences, 2022)The present study is the first of a series of three papers where we characterise the type II supernovae (SNe II) from the Carnegie Supernova Project-I to understand their diversity in terms of progenitor and explosion ...
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(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 ...
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(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 ...
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(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 ...
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(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 ...
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(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 ...
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(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 ...
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(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 ...
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(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 ...
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(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 ...