Exploració per autor "Piersanti, Luciano"

Ara es mostren els items 1-5 de 5

    • Metallicity as a Source of Dispersion in the SNIa Bolometric Light Curve Luminosity-width Relationship 

      Bravo Guil, Eduardo; Domínguez, Inmaculada; Badenes Montoliu, Carles; Piersanti, Luciano; Straniero, Oscar (2010-02-18)
      Article
      Accés restringit per política de l'editorial
      The recognition that the metallicity of Type Ia supernova (SNIa) progenitors might bias their use for cosmological applications has led to an increasing interest in its role in shaping SNIa light curves. We explore the ...

    • SNe Ia keep memory of their progenitor metallicity 

      Piersanti, Luciano; Bravo Guil, Eduardo; Cristallo, Sergio; Domínguez Aguilera, Inmaculada; Straniero, Oscar; Tornambé, Amedeo; Martínez Pinedo, Gabriel (2017-02-09)
      Article
      Accés obert
      The ultimate understanding of SNe Ia diversity is one of the most urgent issues to exploit thermonuclear explosions of accreted White Dwarfs (WDs) as cosmological yardsticks. In particular, we investigate the impact of the ...

    • Supernovae and dark energy 

      Domínguez, Inmaculada; Bravo Guil, Eduardo; Piersanti, Luciano; Straniero, Oscar; Tornambé, Amedeo (Astronomical Society of the Pacific, 2008)
      Text en actes de congrés
      Accés obert
      A decade ago the observations of thermonuclear supernovae at high-redhifts showed that the expansion rate of the Universe is accelerating and since then, the evidence for cosmic acceleration has gotten stronger. This ...

    • The elusive nature of the r-stars 

      Domínguez, Inmaculada; Piersanti, Luciano; Cabezón Gómez, Rubén Martín; Zamora, O.; García Senz, Domingo; Abia, C.; Straniero, Oscar (2010-10-10)
      Article
      Accés obert
      R stars are carbon stars, less luminous and hotter than the carbon stars evolving along the AGB phase. Thus, their carbon enrichment cannot be a consequence of the third dredge-up, a fact also in agreement with the lack ...

    • Type Ia supernovae and the 12C+12C reaction rate 

      Bravo Guil, Eduardo; Piersanti, Luciano; Domínguez, Inmaculada; Straniero, Oscar; Isern Vilaboy, Jordi; Escartín Vigo, José Antonio (2011-11-22)
      Article
      Accés obert
      Context. Even if the 12C+12C reaction plays a central role in the ignition of type Ia supernovae (SNIa), the experimental determination of its cross-section at astrophysically relevant energies (E ≲ 2 MeV) has never been ...