Now showing items 21-40 of 47

    • De King Kong a Einstein : la física en la ciencia ficción 

      Moreno Lupiáñez, Manuel; José Pont, Jordi (Edicions UPC, 1999)
      Book
      Restricted access to the UPC academic community
      La ciencia ficción es un poderoso vehículo con el que pueden traspasarse incluso los límites de la imaginación humana. Frankenstein, Supermán, Terminator y otros mixtos de la ciencia ficción constituyen, a su vez, una vía ...
    • Laboratory evidence for co-condensed oxygen- and carbon-rich meteoritic stardust from nova outbursts 

      Haenecour, Pierre; Howe, Jane Y.; Zega, Thomas J.; Amari, Sachiko; Lodders, Katharina; José Pont, Jordi; Kaji, Kazutoshi; Sunaoshi, Takeshi; Atsushi, Muto (Springer Nature, 2019-04-29)
      Article
      Open Access
      Although their parent stars no longer exist, the isotopic and chemical compositions and microstructure of individual stardust grains identified in meteorites provide unique constraints on dust formation and thermodynamic ...
    • Low-energy( 23)Al beta-delayed proton decay and Na-22 destruction in novae 

      Perez Loureiro, David; Wrede, Christopher; José Pont, Jordi (American Physical Society (APS), 2020-05-19)
      Article
      Open Access
      The radionuclide22Na is a target of¿-ray astronomy searches, predicted to be produced during thermonuclearrunaways driving classical novae. The22Na(p,¿)23Mg reaction is the main destruction channel of22Na during anova, ...
    • M31N 2008-12a - The remarkable recurrent Nova in M31: Panchromatic observations of the 2015 eruption 

      Darnley, M. J.; Henze, Martin; Bode, M. F.; Hachisu, I.; Hernanz Carbó, Margarita; Hornoch, Kamil; Hounsell, R.; Kato, M.; Ness, Jan-Uwe; Osborne, Julian; Page, Kim; Ribeiro, V. A.; Rodríguez-Gil, Pablo; Shafter, A. W.; Shara, M.; Steele, I. A.; Williams, S. C.; Figueira, Joana; José Pont, Jordi; Sala Cladellas, Glòria (2016-12-20)
      Article
      Open Access
    • Measurement of key resonance states for the 40P(p,g)31S reaction rate, and the production of intermediate-mass elements in nova explosions 

      Kankainen, A; Woods, P.J.; Schatz, H.; Poxon-Pearson, T; Doherty, D.T.; Bader, V.; Baugher, T.; Bazin, D.; Brown, B.A.; Browne, J.; Estrade, A.; Gade, A.; José Pont, Jordi; Kontos, A.; Langer, C.; Lotay, G.; Meisel, Z.; Montes, F.; Noji, S.; Nunes, F.; Perdikakis, G.; Pereira, J.; Recchia, F.; Redpath, T.; Stroberg, R.; Scott, M.; Seweryniak, D.; Stevens, J.; Weisshaar, D.; Wimmer, K.; Zegers, R. (Elsevier, 2017-05-17)
      Article
      Open Access
      We report the first experimental constraints on spectroscopic factors and strengths of key resonances in the 30P(p, γ)31Sreaction critical for determining the production of intermediate-mass elements up to Ca in nova ejecta. ...
    • Measurement of very low (alpha,n) cross sections of astrophysical interest 

      Taín, J.L.; Jordan Herrero, Donato; Agramunt Ros, Jorge; Algora, A.; Bandac, I; Bettini, S; Caballero Folch, Roger; Calviño Tavares, Francisco; Cano-Ott, D; Cortés Rossell, Guillem Pere; Domingo-Pardo, C; Fraile, L. M.; Garcia, A.R.; Gomez-Cadenas, J.J.; José Pont, Jordi; Longland, Richard; Mendoza, E (Institute of Physics (IOP), 2016)
      Article
      Open Access
      The reactions 13C( ; n)16O and 22Ne( ; n)25Mg are the primary sources of neutrons for the astrophysical s-process. The feasibility of cross section measurements within the respective Gamow windows is discussed in quantitative ...
    • Multidimensional modeling of Nova outbursts 

      José Pont, Jordi (2014-02-28)
      Part of book or chapter of book
      Restricted access - publisher's policy
    • Nucleosynthesis during the merger of white dwarfs and the origin of R Coronae Borealis stars 

      Longland, Richard Leigh; Lorén Aguilar, Pablo; José Pont, Jordi; García-Berro Montilla, Enrique; Althaus, Leandro Gabriel; Isern Vilaboy, Jordi (2011-08-20)
      Article
      Restricted access - publisher's policy
      Many hydrogen-deficient stars are characterized by surface abundance patterns that are hard to reconcile with conventional stellar evolution. Instead, it has been suggested that they may represent the result of a merger ...
    • Nucleosynthesis in novae 

      José Pont, Jordi (2017)
      Conference report
      Open Access
    • Nucleosynthesis in stellar explosions: Type Ia supernovae, classical novae, and type I X-ray bursts 

      José Pont, Jordi (2019-02-20)
      Article
      Open Access
      Nuclear astrophysics aims at understanding the cosmic origin of the chemical elements and the energy generation in stars. It constitutes a truly multidisciplinary arena that combines tools, developments, and achievements ...
    • Observatory science with eXTP 

      Zand, Jean J. M. in ’t; Bozzo, Enrico; Qu, JinLu; Sala Cladellas, Glòria; José Pont, Jordi; Linares Alegret, Manuel (2019-02-01)
      Article
      Open Access
      In this White Paper we present the potential of the enhanced X-ray Timing and Polarimetry (eXTP) mission for studies related to Observatory Science targets. These include flaring stars, supernova remnants, accreting white ...
    • On presolar stardust grains from CO classical novae 

      Iliadis, Christian; Downen, Lori N.; José Pont, Jordi; Nittler, Larry R.; Starrfield, Sumner (Institute of Physics (IOP), 2018-03-10)
      Article
      Open Access
      About 30%–40% of classical novae produce dust 20–100 days after the outburst, but no presolar stardust grains from classical novae have been unambiguously identified yet. Although several studies claimed a nova paternity ...
    • On the parallelization of stellar evolution codes 

      Martin Rodriguez, David; José Pont, Jordi; Longland, Richard Leigh (Springer (Biomed Central Ltd.), 2018-11-01)
      Article
      Open Access
      Multidimensional nucleosynthesis studies with hundreds of nuclei linked through thousands of nuclear processes are still computationally prohibitive. To date, most nucleosynthesis studies rely either on hydrostatic/hydrodynamic ...
    • P-process nucleosynthesis in detonating white dwarfs in the light of multidimensional hydrodynamical models 

      Goriely, S; García Senz, Domingo; Bravo Guil, Eduardo; José Pont, Jordi (2005-12)
      Article
      Open Access
      The p-process nucleosynthesis in He-accreting white dwarfs with sub-Chandrasekhar mass is revisited in the light of multi-dimensional hydrodynamical simulations. Post-processing calculations are performed on a sample of ...
    • Recent advances in the modelling of classical novae and type I X-ray bursts 

      José Pont, Jordi; Casanova Bustamante, Jordi; Parikh, Anuj Ramesh; García-Berro Montilla, Enrique (2012)
      Article
      Open Access
      Classical nova outbursts and type I X-ray bursts are thermonuclear stellar explosions driven by charged-particle reactions. Extensive numerical simulations of nova explosions have shown that the accreted envelopes attain ...
    • Science with e-ASTROGAM: a space mission for MeV–GeV gamma-ray astrophysics 

      De Angelis, Alejandro; Tatischeff, Vincent; Grenier, Isabelle A.; José Pont, Jordi (2018-08-01)
      Article
      Open Access
      e-ASTROGAM (‘enhanced ASTROGAM’) is a breakthrough Observatory space mission, with a detector composed by a Silicon tracker, a calorimeter, and an anticoincidence system, dedicated to the study of the non-thermal Universe ...
    • SIXE (Spanish Italian X-ray Experiment): a Payload for the Spanish MINISAT-02 Satellites 

      Bravo Guil, Eduardo; García-Berro Montilla, Enrique; José Pont, Jordi; Giovannelli, F (Istituto Nazionale di Astrofisica, 1999-12)
      Article
      Open Access
      SIXE (Spanish Italian X-ray Experiment) is an X-ray payload with geometric area of ~3200 cm2 , formed by four identical gas-filled Multiwire Proportional Counters devoted for a long term spectroscopy of selected X-ray ...
    • SIXE: An X-ray experiment for the MINISAT platform 

      Bravo Guil, Eduardo; García-Berro Montilla, Enrique; Gutiérrez Cabello, Jordi; José Pont, Jordi; García Senz, Domingo; Cabestany Moncusí, Joan; Madrenas Boadas, Jordi (2001-01)
      Article
      Restricted access - publisher's policy
      SIXE (Spanish Italian X-ray Experiment) is an X-ray payload with geometric area of ~3200 cm2 , formed by four identical gas-filled Multiwire Proportional Counters devoted for a long term spectroscopy of selected X-ray ...
    • Spectroscopic study of Ne-20 + p reactions using the JENSA gas-jet target to constrain the astrophysical F-18(p, alpha)O-15 rate 

      Bardayan, D. W.; Chipps, Kelly A.; Ahn, S.; Blackmon, J. C.; Carmichael, S.; Greife, U.; José Pont, Jordi; Kontos, A.; Matos, Mireya E.; Thompson, Paul (AMER PHYSICAL SOC, 2017-11-16)
      Article
      Open Access
      The Jet Experiments in Nuclear Structure and Astrophysics (JENSA) gas-jet target was used to perform spectroscopic studies of 20Ne+p reactions. Levels in 19Ne were probed via the 20Ne(p,d)19Ne reaction to constrain the ...
    • Stellar origins of extremely 13C- AND 15N-enriched presolar sic grains: Novae or Supernovae? 

      Liu, Nan; Nittler, L.; Alexander, Conel M. O'D.; Wang, Jianhua; Pignatari, Marco; José Pont, Jordi; Nguyen, Ann (2016-04-01)
      Article
      Open Access