The s Process and Beyond
Neutron captures produce the vast majority of abundances of elements heavier than iron in
the Universe. Beyond the classical slow (s) and rapid (r) processes, there is observational …
the Universe. Beyond the classical slow (s) and rapid (r) processes, there is observational …
Astrophysics with extraterrestrial materials
LR Nittler, F Ciesla - Annual Review of Astronomy and …, 2016 - annualreviews.org
Extraterrestrial materials, including meteorites, interplanetary dust, and spacecraft-returned
asteroidal and cometary samples, provide a record of the starting materials and early …
asteroidal and cometary samples, provide a record of the starting materials and early …
The 85Kr s-process branching and the mass of carbon stars
We present new spectroscopic observations for a sample of C (N)-type red giants. These
objects belong to the class of asymptotic giant branch stars, experiencing thermal …
objects belong to the class of asymptotic giant branch stars, experiencing thermal …
s-Process nucleosynthesis in carbon stars
We present the first detailed and homogeneous analysis of the s-element content in Galactic
carbon stars of N type. Abundances of Sr, Y, Zr (low-mass s-elements, or ls), Ba, La, Nd, Sm …
carbon stars of N type. Abundances of Sr, Y, Zr (low-mass s-elements, or ls), Ba, La, Nd, Sm …
Presolar grains from meteorites: Remnants from the early times of the solar system
This review provides an introduction to presolar grains–preserved stardust from the
interstellar molecular cloud from which our solar system formed–found in primitive …
interstellar molecular cloud from which our solar system formed–found in primitive …
Presolar SiC grains of type A and B: Their isotopic compositions and stellar origins
ABSTRACT A total of 124 presolar SiC grains of type A and B (defined as having 12 C/13 C<
10) were identified by ion imaging in an acid-resistant residue of the Murchison …
10) were identified by ion imaging in an acid-resistant residue of the Murchison …
The 12CO/13CO ratio in AGB stars of different chemical type-Connection to the 12C/13C ratio and the evolution along the AGB
S Ramstedt, H Olofsson - Astronomy & Astrophysics, 2014 - aanda.org
Aims. The aim of this paper is to investigate the evolution of the 12 C/13 C ratio along the
AGB through the circumstellar 12 CO/13 CO abundance ratio. This is the first time a sample …
AGB through the circumstellar 12 CO/13 CO abundance ratio. This is the first time a sample …
Lithium and zirconium abundances in massive Galactic O-rich AGB stars
DA Garcia-Hernandez, P García-Lario, B Plez… - Astronomy & …, 2007 - aanda.org
Lithium and zirconium abundances (the latter taken as representative of s-process
enrichment) are determined for a large sample of massive Galactic O-rich AGB stars, for …
enrichment) are determined for a large sample of massive Galactic O-rich AGB stars, for …
The origin of fluorine: abundances in AGB carbon stars revisited
C Abia, K Cunha, S Cristallo, P De Laverny - Astronomy & Astrophysics, 2015 - aanda.org
Context. Revised spectroscopic parameters for the HF molecule and a new CN line list in the
2.3 μm region have recently become available, facilitating a revision of the F content in …
2.3 μm region have recently become available, facilitating a revision of the F content in …
Population synthesis of helium white dwarf–red giant star mergers and the formation of lithium-rich giants and carbon stars
X Zhang, CS Jeffery, Y Li, S Bi - The Astrophysical Journal, 2020 - iopscience.iop.org
The formation histories of lithium-rich and carbon-rich red giants are not yet understood. It
has been proposed that the merger of a helium-core white dwarf with a red giant branch …
has been proposed that the merger of a helium-core white dwarf with a red giant branch …