CORE
πΊπ¦Β
Β make metadata, not war
Services
Services overview
Explore all CORE services
Access to raw data
API
Dataset
FastSync
Content discovery
Recommender
Discovery
OAI identifiers
OAI Resolver
Managing content
Dashboard
Bespoke contracts
Consultancy services
Support us
Support us
Membership
Sponsorship
Community governance
Advisory Board
Board of supporters
Research network
About
About us
Our mission
Team
Blog
FAQs
Contact us
research
Effect of
12
C
+
^{12}C+
12
C
+
12
C
^{12}C
12
C
Reaction & Convective Mixing on the Progenitor Mass of ONe White Dwarfs
Authors
Mounib El Eid
Ghina M. Halabi
Publication date
7 October 2014
Publisher
'AIP Publishing'
Doi
Cite
View
on
arXiv
Abstract
Stars in the mass range ~8 - 12
M
β
M_{\odot }
M
β
β
are the most numerous massive stars. This mass range is critical because it may lead to supernova (SN) explosion, so it is important for the production of heavy elements and the chemical evolution of the galaxy. We investigate the critical transition mass (
M
u
p
M_{up}
M
u
p
β
), which is the minimum initial stellar mass that attains the conditions for hydrostatic carbon burning. Stars of masses <
M
u
p
M_{up}
M
u
p
β
evolve to the Asymptotic Giant Branch and then develop CO White Dwarfs, while stars of masses
β©Ύ
\geqslant
β©Ύ
M
u
p
M_{up}
M
u
p
β
ignite carbon in a partially degenerate CO core and form electron degenerate ONe cores. These stars evolve to the Super AGB (SAGB) phase and either become progenitors of ONe White Dwarfs or eventually explode as electron-capture SN (EC-SN). We study the sensitivity of
M
u
p
M_{up}
M
u
p
β
to the C-burning reaction rate and to the treatment of convective mixing. In particular, we show the effect of a recent determination of the
12
C
+
^{12}C+
12
C
+
12
C
^{12}C
12
C
fusion rate, as well as the extension of the convective core during hydrogen and helium burning on
M
u
p
M_{up}
M
u
p
β
in solar metallicity stars. We choose the 9
M
β
M_{\odot }
M
β
β
model to show the detailed characteristics of the evolution with the new C-burning rate.Comment: Submitted to AIP Conference proceedings of Carpathian Summer School of Physics-201
Similar works
Full text
Available Versions
Crossref
See this paper in CORE
Go to the repository landing page
Download from data provider
info:doi/10.1063%2F1.4909597
Last time updated on 03/01/2020