Ara es mostren els items 9-28 de 83

    • Beyond the bubble catastrophe of type Ia supernovae: Pulsating reverse detonation models 

      Bravo Guil, Eduardo; García Senz, Domingo (2006-05)
      Article
      Accés restringit per política de l'editorial
    • Bounds on the possible evolution of the gravitational constant from cosmological type-Ia supernovae 

      Gaztañaga, E.; García-Berro Montilla, Enrique; Isern Vilaboy, Jordi; Bravo Guil, Eduardo; Domínguez, Inmaculada (2002-01)
      Article
      Accés obert
      Recent high-redshift type-Ia supernovae results can be used to set new bounds on a possible variation of the gravitational constant G. If the local value of G at the space-time location of distant supernovae is different, ...
    • Chandrasekhar and sub-Chandrasekhar models for the x-ray emission of type Ia Supernova remnants. I. Bulk properties 

      Martinez Rodriguez, Hector; Badenes Montoliu, Carles; Lee, Shiu-Hang; Patnaude, Daniel J.; Foster, Adam; Yamaguchi, Hiroya; Auchettl, Katie; Bravo Guil, Eduardo; Slane, Patrick O.; Piro, Anthony; Park, Sangwook; Nagataki, Shigehiro (Institute of Physics (IOP), 2018-10-03)
      Article
      Accés obert
      Type Ia supernovae originate from the explosion of carbon–oxygen white dwarfs in binary systems, but the exact nature of their progenitors remains elusive. The bulk properties of Type Ia supernova remnants, such as the ...
    • Clues to type ia supernovae progenitors from degenerate carbon ignition models 

      Bravo Guil, Eduardo; Tornambé, A; Domínguez, Inmaculada; Isern Vilaboy, Jordi (1996-04)
      Article
      Accés obert
    • Cobalt-56 gamma-ray emission lines from the type Ia supernova 2014J 

      Churazov, Eugene; Sunyaev, Rashid; Isern Vilaboy, Jordi; Knodlseder, Jurgen; Jean, Pierre; Lebrun, François; Chugai, Nikolai; Grebenev, Sergei; Bravo Guil, Eduardo; Sazonov, Sergei; Renaud, Matthieu (2014-08-28)
      Article
      Accés restringit per política de l'editorial
      A type Ia supernova is thought to be a thermonuclear explosion of either a single carbon–oxygen white dwarf or a pair of merging white dwarfs. The explosion fuses a large amount of radioactive 56Ni. After the explosion, ...
    • Collision of detonation waves and its implications in the nucleosynthesis of Type Ia supernovae 

      García Senz, Domingo; Bravo Guil, Eduardo (2001-05)
      Article
      Accés restringit per política de l'editorial
    • Composition of the innermost core-collapse supernova ejecta 

      Fröhlich, C; Hauser, P; Liebendörfer, M; Martínez, G; Thielemann, F -K; Bravo Guil, Eduardo; Zinner, N T; Hix, W R; Langanke, K; Mezzacappa, A; Nomoto, K (2006-01)
      Article
      Accés restringit per política de l'editorial
      With currently known input physics and computer simulations in one dimension, a self-consistent treatment of core-collapse supernovae does not yet lead to successful explosions, while two-dimensional models show some ...
    • Computer simulations using implicit Lagrangian hydrodynamics in 3D 

      Escartín Vigo, José Antonio; García Senz, Domingo; Bravo Guil, Eduardo (2011)
      Comunicació de congrés
      Accés obert
      The method known as Smoothed Particle Hydrodynamics (SPH) is an important tool in modern numerical Astrophysics. It has been extensively used to simulate a large number of systems ranging from planets to clusters of ...
    • Consequences of the Collision Between the Gas Ejected in the Collapse of a White Dwarf and a Low-Mass Star 

      Serichol Augué, Núria; García Senz, Domingo; Bravo Guil, Eduardo (1998-06)
      Article
      Accés restringit per política de l'editorial
    • Constraining deflagration models of type Ia supernovae through intermediate-mass elements 

      García Senz, Domingo; Bravo Guil, Eduardo; Cabezón Gómez, Rubén Martín; Woosley, S E (2007-05)
      Article
      Accés restringit per política de l'editorial
      The physical structure of a nuclear flame is a basic ingredient of the theory of Type Ia supernovae (SNe Ia). Assuming an exponential density reduction with several characteristic times, we have followed the evolution of ...
    • Constraints on the physics of type Ia supernovae from the X-ray spectrum of the Tycho supernova remnant 

      Badenes Montoliu, Carles; Borkowski, K.J.; Hughes, J.P.; Hwang, U.; Bravo Guil, Eduardo (2006-07)
      Article
      Accés restringit per política de l'editorial
      We explore the relationship between the models for progenitor systems of Type Ia supernovae and the properties of the supernova remnants that evolve after the explosion. Most models for Type Ia progenitors in the ...
    • Coulomb corrections to the equation of state of nuclear statistical equilibrium matter: implications for SNIa nucleosynthesis and the accretion-induced collapse of white dwarfs 

      Bravo Guil, Eduardo; García Senz, Domingo (1999-08)
      Article
      Accés obert
      Coulomb corrections to the equation of state of degenerate matter are usually neglected in high-temperature regimes, owing to the inverse dependence of the plasma coupling constant, G, on temperature. However, nuclear ...
    • Dark energy and thermonuclear supernovae 

      Domínguez, Inmaculada; Bravo Guil, Eduardo; Piersanti, L.; Tornambé, A.; Straniero, O.; Höfflich, P. (Ulla, A.; Manteiga, M. / Real Sociedad Española de Física, 2007)
      Text en actes de congrés
      Accés obert
      Nowadays it is widely accepted that the current Universe is dominated by dark energy and exotic matter, the so called StandardModel of Cosmoloy or _CDM model. All the available data (Thermonuclear Supernovae, Cosmic Microwave ...
    • Detailed spectral modeling of a three-dimensional pulsating reverse detonation model: Too much nickel 

      Baron, E; Jeffery, D J; Branch, D; Bravo Guil, Eduardo; García Senz, Domingo; Hauschildt, P H (2008-01)
      Article
      Accés restringit per política de l'editorial
      We calculate detailed non-LTE synthetic spectra of a pulsating reverse detonation (PRD) model, a novel explosion mechanism for Type Ia supernovae. While the hydro models are calculated in three dimensions, the spectra use ...
    • Detection and interpretation of gamma-ray emission from SNIa 

      Isern Vilaboy, Jordi; Bravo Guil, Eduardo; Hirschmann, Alina (2008-10)
      Article
      Accés restringit per política de l'editorial
      The explosion mechanism associated with thermonuclear supernovae (SNIa) is still a matter of debate. Nevertheless, there is a wide agreement that large amounts of radioactive nuclei are produced during these events, which ...
    • Evidence for a sub-Chandrasekhar-mass type Ia supernova in the Ursa Minor dwarf galaxys 

      McWilliam, Andrew; Piro, Anthony; Badenes Montoliu, Carles; Bravo Guil, Eduardo (2018-04-19)
      Article
      Accés obert
      A long-standing problem is identifying the elusive progenitors of Type Ia supernovae (SNe Ia), which can roughly be split into Chandraksekhar and sub-Chandrasekhar-mass events. An important difference between these two ...
    • Exploding stars: the gamma-ray signature of type Ia supernovae 

      Isern Vilaboy, Jordi; Gomez, J.; Bravo Guil, Eduardo (Istituto Nazionale di Astrofisica, 1996-12)
      Article
      Accés obert
      Type Ia supenovae are commonly thought to be the outcome of the thermonuclear explosion of a white dwarf in a binary system. Nevertheless, there is no agreement on the scenarios (double degenerates, symbiotics stars ...) ...
    • Exploring the physics of type Ia supernovae through the x-ray spectra of their remnants 

      Badenes Montoliu, Carles; Borkowski, K.; Bravo Guil, Eduardo; Hughes, J.P.; Hwang, U. (Istituto Nazionale di Astrofisica, 2005-10)
      Article
      Accés obert
      We present the results of an ongoing project to use the X-ray observations of Type Ia Supernova Remnants to constrain the physical processes involved in Type Ia Supernova explosions. We use the Tycho Supernova Remnant (SN ...
    • Explosion of white dwarfs harboring hybrid CONe cores 

      Bravo Guil, Eduardo; Gil Pons, Pilar; Gutiérrez Cabello, Jordi; Doherty, Carolyn L. (EDP Sciences, 2016-04-12)
      Article
      Accés obert
      Recently, it has been found that off-center carbon burning in a subset of intermediate-mass stars does not propagate all the way to the center, resulting in a class of hybrid CONe cores. The implications of a significant ...
    • Física ambiental 

      Bravo Guil, Eduardo (Iniciativa Digital Politècnica. Oficina de Publicacions Acadèmiques Digitals de la UPC, 2019-09)
      Llibre
      Accés obert
      Des de la implementació en 2014 del Grau en Estudis d’Arquitectura en les Escoles d’Arquitectura de la UPC, existeix al corresponent Pla d’Estudis una assignatura troncal de Física ambiental i d’instal·lacions, que tracta ...