Published 2009 | Version v1
Journal article

Extended pool of stellar electron capture rates on nuclei

  • 1. VU ITPA, Vilnius (Lithuania)
  • 2. GSI, Darmstadt (Germany)
  • 3. ORNL, Oak Ridge TN (United States)
  • 4. CFNUL, Lisboa (Portugal)

Description

Nuclear physics input plays an important role in core-collapse supernova simulation. Nuclear shell model based methods reliably predict the capture rates, however, the feasibility cuts the method short. Earlier we reported on the extension of the pool of hybrid rates to 250 nuclei of pf+gds model space. Here we present even more enlarged pool based on a schematic Fermi-Dirac approximation to the parent nucleus ground state occupation numbers. More than 2500 nuclei with Z=28-70 and N=40-160 are calculated within the schematic hybrid model. The NSE-averaged electron capture rate and the emitted neutrino spectra are calculated. The screening effects are taken into account both in calculation of the nuclear abundances and calculating the capture rates as well as neutrino spectra.

Additional details

Publishing Information

Journal Title
Verhandlungen der Deutschen Physikalischen Gesellschaft
Journal Issue
Bochum 2009 issue
Series
Also available as printed version: Verhandlungen der Deutschen Physikalischen Gesellschaft v. 44(3)
Journal Page Range
[1 p.]
ISSN
0420-0195
CODEN
VDPEAZ

Conference

Title
DPG Spring meeting 2009 in conjunction with the European Nuclear Physics Conference (EuNPC) of the DPG Division hadronic and nuclear physics and the nuclear physics board of the European Physical Society (EPS)
Dates
16-20 Mar 2009
Place
Bochum (Germany)

Optional Information

Notes
Session: HK 38.6 Di 18:15; No further information available