Recent Submissions

  • Constraining the 30P(p,¿¿)31S Reaction Rate in ONe Novae via the Weak, Low-Energy, ß-Delayed Proton Decay of 31Cl 

    Budner, Tamas; Friedman, Matt; Wrede, Christopher; Brown, B. Alex; José Pont, Jordi; Perez Loureiro, David; Sun, Lijie; Surbrook, Jason; Ayyad, Yassid; Bardayan, D. W.; Chae, Kyungyuk; Chen, Alan A.; Chipps, Kelly A.; Cortesi, Marco; Glassman, Brent; Hall, Matthew R.; Janasik, Mark; Liang, Jing; O'Malley, Patrick; Pollacco, E.; Psaltis, Athanasios; Stomps, Jordan; Wheeler, Tyler (American Institute of Physics (AIP), 2022-05-06)
    Article
    Open Access
    The 30P(p,¿)31S reaction plays an important role in understanding the nucleosynthesis of A=30 nuclides in oxygen-neon novae. The Gaseous Detector with Germanium Tagging was used to measure 31Cl ß-delayed proton decay through ...
  • A moderately-sized nuclear network to assist multi-D hydrodynamic simulations of supernova explosions 

    Sanz, Axel; Cabezón Gómez, Rubén Martín; García Senz, Domingo (2022)
    Article
    Open Access
    A key ingredient in any numerical study of supernova explosions is the nuclear network routine that is coupled with the hydrodynamic simulation code. When these studies are performed in more than one dimension, the size ...
  • Hydrogen burning of 29Si and its impact on presolar stardust grains from classical novae 

    Downen, Lori N.; Iliadis, Christian; Champagne, Art; Clegg, Thomas; Coc, Alain; José Pont, Jordi (Institute of Physics (IOP), 2022-04-01)
    Article
    Open Access
    Presolar stardust grains found in primitive meteorites are believed to retain the isotopic composition of stellar outflows at the time of grain condensation. Therefore, laboratory measurements of their isotopic ratios ...
  • 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
    Open Access
    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 ...
  • Nova LMC 2009a as observed with XMM–Newton, compared with other novae 

    Oriol Ibarz, Marina; Dobrotka, Andrej; Ospina, Nathalie; Ippei, Shake; Sala Cladellas, Glòria (Oxford University Press, 2021-05-21)
    Article
    Open Access
    <jats:title>ABSTRACT</jats:title> <jats:p>We examine four high-resolution reflection grating spectrometers (RGS) spectra of the February 2009 outburst of the luminous recurrent nova LMC 2009a. They were ...
  • Infrared excesses around bright white dwarfs from Gaia and unWISE. II 

    Lai, Samuel; Dennihy, Erik; Xu, Siyi; Nitta, Atsuko; Kleinman, Scot J.; Leggett, Sandy; Bonsor, Amy; Hodgkin, Simon; Rebassa Mansergas, Alberto; Rogers, L. K. (Institute of Physics (IOP), 2021-10-20)
    Article
    Open Access
    Infrared excesses around white dwarf stars indicate the presence of various astrophysical objects of interest, including companions and debris disks. In this second paper of a series, we present follow-up observations ...
  • White dwarf-main-sequence binaries from Gaia EDR3: The unresolved 100 pc volume-limited sample 

    Rebassa Mansergas, Alberto; Solano Márquez, Enrique; Jiménez Esteban, F. M.; Torres Gil, Santiago; Rodrigo Blanco, Carlos; Ferrer i Burjachs, Aina; Calcaferro, Leila M.; Althaus, Leandro G.; Córsico, Alejandro H. (Oxford University Press, 2021-10-01)
    Article
    Open Access
    We use the data provided by the Gaia Early Data Release 3 to search for a highly-complete volume-limited sample of unresolved binaries consisting of a white dwarf and a main sequence companion (i.e. WDMS binaries) within ...
  • The White Dwarf Binary Pathways Survey - IV. Three close white dwarf binaries with G-type secondary stars 

    Schreiber, Mathias R.; Raddi, Roberto; Parsons, S. G.; Gänsicke, Boris T.; Toloza, Odette; Zorotovic, Mónica; Irawati, Puji; Rebassa Mansergas, Alberto; Ren, J. J.; Tappert, C. (Oxford University Press, 2021-02-01)
    Article
    Open Access
    Constraints from surveys of post common envelope binaries (PCEBs) consisting of a white dwarf plus an M-dwarf companion have led to significant progress in our understanding of the formation of close white dwarf binary ...
  • 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
    Open Access
    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 ...
  • Forever young white dwarfs: When stellar ageing stops 

    Camisassa, María Eugenia; Althaus, Leandro G.; Torres Gil, Santiago; Córsico, Alejandro H.; Rebassa Mansergas, Alberto; Tremblay, P. E.; Cheng, Sihao; Raddi, Roberto (EDP Sciences, 2021-05-01)
    Article
    Open Access
    White dwarf stars are the most common end point of stellar evolution. The ultramassive white dwarfs are of special interest as they are related to type Ia supernovae explosions, merger events, and fast radio bursts. ...
  • Uncertainties in the 18F(p, a)15O reaction rate in classical novae 

    Kahl, D.; José Pont, Jordi; Woods, Phil J. (EDP Sciences, 2021-09-01)
    Article
    Restricted access - publisher's policy
    Context. Direct observation of ¿-ray emission from the decay of 18F ejected in classical nova outbursts remains a major focus of the nuclear astrophysics community. However, modeling the abundance of ejected 18F, and thus ...
  • Level structure of the Tz=-1 nucleus Ar 34 and its relevance for nucleosynthesis in ONe novae 

    José Pont, Jordi (American Physical Society, 2021-03-08)
    Article
    Open Access
    The 24Mg+12C fusion reaction was used to perform a detailed ¿-ray spectroscopy study of the astrophysically important nucleus 34Ar. In particular, an experimental setup, coupling the advanced ¿-ray tracking array GRETINA ...

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