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Ara es mostren els items 19-36 de 36

    • Nucleosynthetic yields of intermediate-mass primordial to extremely metal-poor stars 

      Gil Pons, Pilar; Doherty, Carolyn; Campbell, Simon W; Gutiérrez Cabello, Jordi (EDP Sciences, 2022-12-01)
      Article
      Accés obert
      Stellar models and nucleosynthetic yields of primordial to extremely metal-poor (EMP) stars are crucial to interpret the surface abundances of the most metal-poor stars observed and, ultimately, to better understand the ...

    • Nucleosynthetic yields of Z=1e-5 intermediate-mass stars 

      Gil Pons, Pilar; Doherty, Carolyn L.; Gutiérrez Cabello, Jordi; Campbell, Simon W; Siess, Lionel; Lattanzio, John C. (EDP Sciences, 2020-10-23)
      Article
      Accés obert
      Abridged: Observed abundances of extremely metal-poor (EMP) stars in the Halo hold clues for the understanding of the ancient universe. Interpreting these clues requires theoretical stellar models at the low-Z regime. We ...

    • On the fate of extremely low metallicity stars 

      Gil Pons, Pilar; Gutiérrez Cabello, Jordi; García-Berro Montilla, Enrique; Althaus, Leandro Gabriel (2008)
      Article
      Accés obert
      We have computed and analyzed the evolution of intermediate-mass stars of metallicity Z = 10−5 from the main sequence until the early stages of the TP-(S)AGB phase. In order to check the influence of mixing we have ...

    • Primordial black holes capture by stars and induced collapse to low-mass stellar black holes 

      Oncins Marco, Gerard; Miralda Escudé, Jordi; Gutiérrez Cabello, Jordi; Gil Pons, Pilar (Oxford University Press, 2022-10-04)
      Article
      Accés obert
      Primordial black holes in the asteroid-mass window, which might constitute all the dark matter, can be captured by stars when they traverse them at low enough velocity. After being placed on a bound orbit during star ...

    • Primordial to extremely metal-poor AGB and Super-AGB stars: White dwarf or supernova progenitors? 

      Gil Pons, Pilar; Doherty, Carolyn L.; Gutiérrez Cabello, Jordi; Siess, Lionel; Wattana Campbell, Simon; Lau, Herbert B.; Lattanzio, John C. (2018-11-29)
      Article
      Accés obert
      Getting a better understanding of the evolution and nucleosynthetic yields of the most metal-poor stars ( Z ¿ 10 ¿5 ) is critical because they are part of the big picture of the history of the primitive universe. Yet many ...

    • Production of short-lived radioactive nuclei in super asymptotic giant branch star 

      Doherty, Carolyn L.; Lugaro, M.; Lau, H.; Siess, Lionel; Lattanzio, John; Gil Pons, Pilar (2012-08-08)
      Article
      Accés obert

    • Production of short-lived radioactive nuclei in Super Asymptotic Giant Branch stars 

      Doherty, Carolyn L.; Lugaro, M.; Lau, H. H. B.; Siess, Lionel; Lattanzio, John; Gil Pons, Pilar (2012)
      Text en actes de congrés
      Accés obert

    • Super and massive AGB stars - III. nucleosynthesis in metal-poor and very metal-poor stars - Z = 0.001 and 0.0001 

      Doherty, Carolyn L.; Gil Pons, Pilar; Lau, Herbert B.; Lattanzio, John C.; Siess, Lionel; Campbell, Simon W (2014-05)
      Article
      Accés obert
      We present a new grid of stellar models and nucleosynthetic yields for super-AGB stars with metallicities Z = 0.001 and 0.0001, applicable for use within galactic chemical evolution models. Contrary to more metal-rich stars ...

    • Super asymptotic giant branch stars. I - Evolution code comparison 

      Doherty, Carolyn L.; Siess, Lionel; Lattanzio, John; Gil Pons, Pilar (2010-01-01)
      Article
      Accés restringit per política de l'editorial
      We present an extensive set of detailed stellar models in the mass range 7.7–10.5M over the metallicity range Z = 10−5–0.02. These models were produced using the Monash University version of the Mount Stromlo Stellar ...

    • Super- and massive AGB stars - IV. Final fates initial-to-final mass relation 

      Doherty, Carolyn L.; Gil Pons, Pilar; Siess, Lionel; Lattanzio, John C.; Lau, Herbert B. (2015-01-21)
      Article
      Accés obert
      We explore the final fates of massive intermediate-mass stars by computing detailed stellar models from the zero-age main sequence until near the end of the thermally pulsing phase. These super-asymptotic giant branch ...

    • Super-AGB stars and their role as electron capture supernova progenitors 

      Doherty, Carolyn L.; Gil Pons, Pilar; Siess, Lionel; Lattanzio, John C. (2017-11-23)
      Article
      Accés obert
      We review the lives, deaths and nucleosynthetic signatures of intermediate-mass stars in the range ˜6–12 M¿, which form super-AGB stars near the end of their lives. The critical mass boundaries both between different types ...

    • The evolution and C, N and O yields of intermediate-mass Z = 10-5 stars in isolation and in close binary systems 

      Gil Pons, Pilar; Doherty, Carolyn L.; Suda, T.; Campbell, Simon; Lau, H.; Mansouri Guilani, Shervin; Lattanzio, John (2012)
      Comunicació de congrés
      Accés obert
      We have computed the evolution of Z = 10−5 stars of masses between 4 and 9 M , from their main sequence till the late TP-(S)AGB phase.We use a recent version of the Mount Stromlo Stellar Evolution code, in which molecular ...

    • The evolution of ultra-massive carbon-oxygen white dwarfs 

      Camisassa, María Eugenia; Althaus, Leandro G.; Koester, Detlev; Torres, Santiago; Gil Pons, Pilar; Córsico, Alejandro H. (Oxford University Press, 2022-04-01)
      Article
      Accés obert
      Ultra-massive white dwarfs (MWD¿1.05M¿) are considered powerful tools to study type Ia supernovae explosions, merger events, the occurrence of physical processes in the Super Asymptotic Giant Branch (SAGB) phase, and the ...

    • The formation of ultra-massive carbon-oxygen core white dwarfs and their evolutionary and pulsational properties 

      Althaus, Leandro G.; Gil Pons, Pilar; Córsico, Alejandro H.; Camisassa, María Eugenia; Miller Bertolami, Marcelo M; de Geronimo, Francisco; Torres Gil, Santiago; Gutiérrez Cabello, Jordi; Rebassa Mansergas, Alberto (EDP Sciences, 2021-02)
      Article
      Accés obert
      The existence of ultra-massive white dwarf stars, MWD & 1.05M , has been reported in several studies. These white dwarfs are relevant for the role they play in type Ia Supernova explosions, the occurrence of physical ...

    • The pulsational properties of ultra-massive DB white dwarfs with carbon-oxygen cores coming from single-star evolution 

      Córsico, Alejandro H.; Gil Pons, Pilar; Torres Gil, Santiago; Althaus, Leandro G. (EDP Sciences, 2021-02)
      Article
      Accés obert
      Ultra-massive white dwarfs are relevant for many reasons: their role as type Ia supernova progenitors, the occurrence of physical processes in the asymptotic giant branch phase, the existence of high-field magnetic white ...

    • The upper mass limit for the formation of TP-SAGB stars and the dredge-out phenomenon 

      Gil Pons, Pilar; Doherty, Carolyn L. (Istituto Nazionale di Astrofisica, 2010-12-01)
      Article
      Accés obert
      We have computed the evolution of Super-AGB stars from the main sequence and up to a few hundred thermal pulses, with special attention to the low metallicity cases (Z = 10􀀀10; 10􀀀5; 10􀀀4 and 10􀀀3). Our computations ...

    • The upper-mass limit for the formation of super-agb stars and the dredge-out phenomenon 

      Gil Pons, Pilar; Doherty, Carolyn L. (Istituto Nazionale di Astrofisica, 2010)
      Article
      Accés restringit per política de l'editorial
      We have computed the evolution of Super-AGB stars from the main sequence and up to a few hundred thermal pulses, with special attention to the low metallicity cases (Z = 10􀀀10; 10􀀀5; 10􀀀4 and 10􀀀3). Our computations ...

    • Transition of the stellar initial mass function explored using binary population synthesis 

      Suda, Takuma; Komiya, Yutaka; Yamada, Shimako; Katsuta, Yutaka; Aoki, Wako; Gil Pons, Pilar; Doherty, Carolyn L.; Campbell, Simon W.; Wood, Peter R.; Fujimoto, Masayuki Y. (2013)
      Article
      Accés obert
      The stellar initial mass function (IMF) plays a crucial role in determining the number of surviving stars in galaxies, the chemical composition of the interstellar medium, and the distribution of light in galaxies. A key ...