Scopus
YÖKSİS Eşleşti
A comparative study of statistical models for nuclear equation of state of stellar matter
Nuclear Physics A · Haziran 2013
YÖKSİS Kayıtları
A comparative study of statistical models for nuclear equation of state of stellar matter
Nuclear Physics A · 2013 SSCI 18 atıf
PROFESÖR NİHAL BÜYÜKÇİZMECİ →
Makale Bilgileri
DergiNuclear Physics A
Yayın TarihiHaziran 2013
Cilt / Sayfa907 · 13-54
Scopus ID2-s2.0-84875764705
Özet
We compare three different statistical models for the equation of state (EOS) of stellar matter at subnuclear densities and temperatures (0.5-10 MeV) expected to occur during the collapse of massive stars and supernova explosions. The models introduce the distributions of various nuclear species in nuclear statistical equilibrium, but use somewhat different nuclear physics inputs. It is demonstrated that the basic thermodynamical quantities of stellar matter under these conditions are similar, except in the region of high densities and low temperatures. We demonstrate that mass and isotopic distributions have considerable differences related to the different assumptions of the models on properties of nuclei at these stellar conditions. Overall, the three models give similar trends, but the details reflect the uncertainties related to the modeling of medium effects, such as the temperature and density dependence of surface and bulk energies of heavy nuclei, and the nuclear shell structure effects. We discuss importance of new physics inputs for astrophysical calculations from experimental data obtained in intermediate energy heavy-ion collisions, in particular, the similarities of the conditions reached during supernova explosions and multifragmentation reactions. © 2013 Elsevier B.V.
Yazarlar (11)
1
Nihal Buyukcizmeci
2
A. S. Botvina
3
I. N. Mishustin
4
R. Ogul
5
M. Hempel
6
J. Schaffner-Bielich
7
F. K. Thielemann
8
S. Furusawa
9
K. Sumiyoshi
10
S. Yamada
11
H. Suzuki
Anahtar Kelimeler
Nuclear astrophysics
Kurumlar
Frankfurt Institute for Advanced Studies
Frankfurt am Main Germany
Goethe-Universität Frankfurt am Main
Frankfurt am Main Germany
High Energy Accelerator Research Organization, Tsukuba
Tsukuba Japan
Institute for Nuclear Research of the Russian Academy of Sciences
Moscow Russian Federation
Institut für Theoretische Physik Heidelberg
Heidelberg Germany
Johannes Gutenberg-Universität Mainz
Mainz Germany
National Institute of Technology, Numazu College
Numazu Japan
National Research Centre "Kurchatov Institute"
Moscow Russian Federation
Selçuk Üniversitesi
Selçuklu Turkey
Tokyo University of Science
Tokyo Japan
Universität Basel
Basel Switzerland
Waseda University
Tokyo Japan
Metrikler
68
Atıf
11
Yazar
1
Anahtar Kelime