Now showing items 1-20 of 23

  • A Chandrasekhar mass progenitor for the type Ia supernova remnant 3C 397 from the enhanced abundances of nickel and manganese 

    Yamaguchi, H; Badenes Montoliu, Carles; Foster, Adam; Bravo Guil, Eduardo; Williams, Brian; Maeda, Keichi; Nobukawa, Masayoshi; Eriksen, Kristoffer; Brickhouse, Nancy; Petre, Robert; Koyama, Katsuyi (2015-03-12)
    Article
    Restricted access - publisher's policy
    Despite decades of intense efforts, many fundamental aspects of Type Ia supernovae (SNe Ia) remain elusive. One of the major open questions is whether the mass of an exploding white dwarf (WD) is close to the Chandrasekhar ...
  • A model grid for the spectral analysis of X-ray emission in young Type Ia supernova remnants 

    Badenes Montoliu, Carles; Bravo Guil, Eduardo; Borkowski, K.J. (2005-08)
    Article
    Restricted access - publisher's policy
    We address a new set of models for the spectral analysis of the X-ray emission from young, ejecta-dominated Type Ia supernova remnants. These models are based on hydrodynamic simulations of the interaction between Type Ia ...
  • Are the models for type Ia supernova progenitors consistent with the properties of supernova remnants? 

    Badenes Montoliu, Carles; Hughes, J.P.; Bravo Guil, Eduardo; Langer, N. (2007-06)
    Article
    Restricted access - publisher's policy
    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 ...
  • A Super-solar metallicity for the progenitor of Kepler's supernova 

    Park, Sangwook; Badenes Montoliu, Carles; Mori, Koji; Kaida, Ryohei; Bravo Guil, Eduardo; Schenck, Andrew; Eriksen, Kristoffer A.; Hughes, John P.; Slane, Patrick O.; Burrows, David N.; Lee, Jae-Joon (2013-04)
    Article
    Open Access
    We have performed deep X-ray observations of the remnant of Kepler's supernova (SN 1604) as a Key Project of the Suzaku Observatory. Our main goal is to detect secondary Fe-peak elements in the supernova (SN) ejecta to ...
  • 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
    Open Access
    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 ...
  • 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
    Restricted access - publisher's policy
    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 ...
  • 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
    Open Access
    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 ...
  • 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
    Open Access
    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 ...
  • Gamma-ray emission from SN2014J near maximum optical light 

    Isern Vilaboy, Jordi; Jean, Pierre; Bravo Guil, Eduardo; Knodlseder, Jurgen; Lebrun, François; Churazov, Eugene; Sunyaev, Rashid; Domingo, Alberto; Badenes Montoliu, Carles; Hartmann, Dieter, H; Hoeflich, Peter; Renaud, Matthieu; Soldi, Simona; Elias Rosa, Nancy; Hernanz, Margarita; Domínguez Aguilera, Inmaculada; García Senz, Domingo; Lichti, G.G.; Vedrenne, G.; Von Ballmoos, Peter (EDP Sciences, 2016-04)
    Article
    Open Access
    Context. The optical light curve of Type Ia supernovae (SNIa) is powered by thermalized gamma-rays produced by the decay of 56Ni and 56Co, the main radioactive isotopes synthesized by the thermonuclear explosion of a C/O ...
  • Is the metallicity of their host galaxies a good measure of the metallicity of Type Ia supernovae? 

    Bravo Guil, Eduardo; Badenes Montoliu, Carles (2011-06)
    Article
    Open Access
    The efficient use of Type Ia supernovae (SNIa) for cosmological studies requires knowledge of any parameter that can affect their luminosity in either systematic or statistical ways. Observational samples of SNIa commonly ...
  • Is there a hidden hole in type la supernova remnants? 

    García Senz, Domingo; Badenes Montoliu, Carles; Serichol, N. (2012-01-20)
    Article
    Open Access
    In this paper, we report on the bulk features of the hole carved by the companion star in the material ejected during a Type Ia supernova (SN Ia) explosion. In particular we are interested in the long-term evolution of the ...
  • 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
    Restricted access - publisher's policy
    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 ...
  • Observational evidence for high neutronization in supernova remnants : implications for type Ia supernova progenitors 

    Martinez Rodriguez, Hector; Badenes Montoliu, Carles; Yamaguchi, H; Bravo Guil, Eduardo; Timmes, Frank; Miles, Broxton; Townsley, Dean; Piro, Anthony; Mori, Hideyuki; Andrews, Brett; Park, Sangwook (2017-06-28)
    Article
    Open Access
    The physical process whereby a carbon–oxygen white dwarf explodes as a Type Ia supernova (SN Ia) remains highly uncertain. The degree of neutronization in SN Ia ejecta holds clues to this process because it depends on the ...
  • Observation of SN2011fe with INTEGRAL - I : pre-maximum phase 

    Isern Vilaboy, Jordi; Jean, Pierre; Bravo Guil, Eduardo; Diehl, Roland; Knödlseder, Jurgen; Domingo, A.; Hirschmann, Alina; Hoeflich, Peter; Lebrun, F.; Renaud, M.; Soldi, Simona; Elias-Rosa, Nancy; Hernanz Carbó, Margarita; Kulebi, Baybar; Zhang, X.; Badenes Montoliu, Carles; Domínguez, Inmaculada; García Senz, Domingo; Jordi, Carme; Lichti, G.; Vedrenne, G.; von Ballmoos, Peter (2013-04)
    Article
    Open Access
    Context. SN2011fe was detected by the Palomar Transient Factory in M101 on August 24, 2011, a few hours after the explosion. From the early optical spectra it was immediately realized that it was a Type Ia supernova, thus ...
  • Secondary fe-peak nuclei in the tycho supernova remnant 

    Badenes Montoliu, Carles; Bravo Guil, Eduardo; Hughes, J.P. (2008)
    Conference lecture
    Open Access
    The Mn to Cr mass ratio in supernova ejecta has recently been proposed as a tracer of Type Ia SN progenitor metallicity. We review the advantages and problems of this observable quantity, and discuss them in the framework ...
  • SNR-calibrated Type Ia supernova models 

    Bravo Guil, Eduardo; Badenes Montoliu, Carles; Martinez Rodriguez, Hector (Oxford University Press, 2019-02)
    Article
    Open Access
    Current Type Ia supernova (SN Ia) models can reproduce most visible+IR + UV observations. In the X-ray band, the determination of elemental abundance ratios in supernova remnants (SNRs) through their spectra has reached ...
  • The end of amnesia: A new method for measuring the metallicity of Type Ia supernova progenitors using manganese lines in supernova remnants 

    Badenes Montoliu, Carles; Bravo Guil, Eduardo; Hughes, J.P. (2008-06)
    Article
    Restricted access - publisher's policy
    We propose a new method to measure the metallicity of Type Ia supernova progenitors using Mn and Cr lines in the X-ray spectra of young supernova remnants. We show that the Mn-to-Cr mass ratio in Type Ia supernova ejecta ...
  • The imprint of presupernova evolution on supernova remnants 

    Badenes Montoliu, Carles; Bravo Guil, Eduardo (IOP PUBLISHING LTD, 2001-07)
    Article
    Restricted access - publisher's policy
    The evolution of Type Ia supernova binary system progenitors is highly uncertain. Several evolutionary models predict that the accretion of mass onto the white dwarf is accompanied by mass ejection from the binary in the ...
  • The origin of the iron-rich knot in Tycho's supernova remnant 

    Yamaguchi, H; Hughes, John P.; Badenes Montoliu, Carles; Bravo Guil, Eduardo; Seitenzahl, Ivo R.; Martinez Rodriguez, Hector; Park, Sangwook; Petre, Robert (2017-01-09)
    Article
    Open Access
    X-ray observations of supernova remnants (SNRs) allow us to investigate the chemical inhomogeneity of ejecta, offering unique insight into the nucleosynthesis in supernova explosions. Here we present detailed imaging and ...
  • The persistence of memory, or how the X-ray spectrum of SNR 0509-67.5 reveals the brightness of its parent Type Ia supernova 

    Badenes Montoliu, Carles; Hughes, J.P.; Cassam, G.; Bravo Guil, Eduardo (2008-06)
    Article
    Restricted access - publisher's policy
    We examine the dynamics and X-ray spectrum of the young Type Ia supernova remnant 0509–67.5 in the context of the recent results obtained from the optical spectroscopy of its light echo. Our goal is to estimate the kinetic ...