Now showing items 1-15 of 15

    • Hydrostatic and explosive nucleosynthesis in massive stars using improved nuclear and stellar physics 

      Rauscher, T.; Heger, A.; Hoffman, R. D.; Woosley, S.E. (2003-05-05)
      We have performed the first calculations to follow the evolution of all stable nuclei and their radioactive progenitors in a finely-zoned stellar model computed from the onset of central hydrogen burning through explosion ...
    • Massive star evolution : nucleosynthesis and nuclear reaction rate uncertainties 

      Heger, A.; Woosley, S.E.; Rauscher, T.; Hoffman, R. D.; Boyes, M.M. (2002-07)
      We present a nucleosynthesis calculation of a 25 M-circle dot star of solar composition that includes all relevant isotopes up to polonium. We follow the stellar evolution from hydrogen burning till iron core collapse and ...
    • Models for Type I X-ray bursts with improved nuclear physics 

      Woosley, S.E.; Heger, A.; Cumming, A.; Hoffman, R. D.; Pruet, J.; Rauscher, T.; Fisker, J. L.; Schatz, H.; Brown, B.A.; Wiescher, M. (2004-03)
      Multizone models of Type I X-ray bursts are presented that use an adaptive nuclear reaction network of unprecedented size, up to 1300 isotopes, for energy generation and include the most recent measurements and estimates ...
    • A new y-ray burst classification scheme from GRB 060614 

      Gehrels, N.; Norris, J.P.; Barthelmy, S.; Granot, J.; Kaneko, Y.; Kouveliotou, C.; Markwardt, C.B.; Meszaros, P.; Nakar, E.; Nousek, J.A.; O'Brien, P.T.; Page, M.J.; Palmer, D.M.; Parsons, A.; Roming, P.W.A.; Sakamoto, T.; Sarazin, C.L.; Schady, P.; Stamatikos, M.; Woosley, S.E. (2006)
    • Nuclear aspects of stellar and explosive nucleosynthesis 

      Rauscher, T.; Thielemann, Friedrich-Karl; Hoffman, R. D.; Woosley, S.E. (Springer Nature, 2001)
      The majority of nuclear reactions in astrophysics involve unstable nuclei which are not yet fully accessible by experiments. Therefore, there is high demand for reliable predictions of cross sections and reaction rates by ...
    • Nuclear data needs for the study of nucleosynthesis in massive stars 

      Woosley, S.E.; Heger, A.; Rauscher, T.; Hoffman, R. D. (2003-05-05)
      The critical nuclear physics needed to calculate the evolution of and nucleosynthesis in massive stars is reviewed with emphasis on the uncertainties. Some reaction rates - the most important and uncertain still being C-12 ...
    • Nucleosynthesis in massive stars revisited 

      Rauscher, T.; Heger, A.; Hoffman, R. D.; Woosley, S.E. (2001-05-21)
      We have performed the first calculations to follow the evolution of all stable nuclei and their radioactive progenitors in a finely-zoned stellar model computed from the onset of central hydrogen burning through explosion ...
    • Nucleosynthesis in massive stars using extended adaptive nuclear reaction networks 

      Heger, A.; Rauscher, T.; Hoffman, R. D.; Woosley, S.E. (American Institute of Physics (AIP), 2001)
      We present the first calculations to follow the evolution of all stable isotopes and their abundant radioactive progenitors in a finely zoned stellar model from the onset of central hydrogen burning through explosion as a ...
    • Nucleosynthesis in massive stars with improved nuclear and stellar physics 

      Rauscher, T.; Heger, A.; Hoffman, R. D.; Woosley, S.E. (2002-09-01)
      We present the first calculations to follow the evolution of all stable nuclei and their radioactive progenitors in stellar models computed from the onset of central hydrogen burning through explosion as Type II supernovae. ...
    • Nucleosynthesis of heavy elements in massive stars 

      Heger, A.; Woosley, S.E.; Langanke, K.; Kolbe, E.; Rauscher, T.; Hoffman, R. D. (2003-05-05)
      We present nucleosynthesis results form calculations that follow the evolution of massive stars from their birth on the main sequence through their explosion as supernovae. Our simulations include all relevant isotopes and ...
    • Off-axis afterglow emission from jetted gamma-ray bursts 

      Granot, J.; Panaitescu, A.; Kumar, P.; Woosley, S.E. (2002)
    • On the Afterglow and Host Galaxy of GRB 021004: A Comprehensive Study with the Hubble Space Telescope 

      Fynbo, J.; Gorosabel, J.; Smette, A.; Fruchter, A.S.; Hjorth, J.; Pedersen, K.; Levan, A.; Burud, I.; Sahu, K.; Vreeswijk, P.M.; Kouveliotou, C.; Tanvir, N.; Thorsett, S.E.; Wijers, R.A.M.J.; Castro Ceron, J.M.; Castro-Tirado, A.J.; Garnivich, P.; Holland, S.T.; Jakobsson, P.; Moller, P.; Nugent, P.; Pian, E.; Rhoads, J.E.; Thomsen, B.; Watson, D.; Woosley, S.E. (2005)
    • Prediction of astrophysical reaction rates : Methods, data needs, and consequences for nucleosynthesis studies 

      Rauscher, T.; Hoffman, R. D.; Woosley, S.E.; Thielemann, Friedrich-Karl (American Institute of Physics (AIP), 2000)
      The majority of nuclear reactions in astrophysics involve unstable nuclei which are not fully accessible by experiments yet. Therefore, there is high demand for reliable predictions of cross sections and reaction rates by ...
    • The reaction rate sensitivity of nucleosynthesis in type II supernovae 

      Hoffman, R. D.; Woosley, S.E.; Weaver, T.A.; Rauscher, T.; Thielemann, Friedrich-Karl (1999-08-20)
      We explore the sensitivity of the nucleosynthesis of intermediate-mass elements (28 less than or equal to A less than or similar to 80) in supernovae derived from massive stars to the nuclear reaction rates employed in the ...
    • A very energetic supernova associated with the -ray burst of 29 March 2003 

      Hjorth, J.; Sollerman, J.; Moller, P.; Fynbo, J.; Woosley, S.E.; Kouveliotou, C.; Tanvir, N.; Greiner, J.; Andersen, M.I.; Castro-Tirado, A.J.; Castro Ceron, J.M.; Fruchter, A.S.; Gorosabel, J.; Jakobsson, P.; Kaper, L.; Klose, S.; Masetti, N.; Pedersen, H.; Pedersen, K.; Pian, E.; Palazzi, E.; Rhoads, J.E.; Rol, E.; van den Heuvel, E.P.J.; Vreeswijk, P.M.; Watson, D.; Wijers, R.A.M.J. (2003)