On the role of low-mass asymptotic giant branch stars in producing a solar system distribution of s-process isotopes

1988 ◽  
Vol 334 ◽  
pp. L45 ◽  
Author(s):  
R. Gallino ◽  
M. Busso ◽  
G. Picchio ◽  
C. M. Raiteri ◽  
A. Renzini
Keyword(s):  
Solar System ◽  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Low Mass ◽  
Giant Branch Stars

scholarly journals The Chemical Composition of Asymptotic Giant Branch Stars-the s-process

1991 ◽  
Vol 145 ◽  
pp. 299-316
Author(s):  
David L. Lambert
Keyword(s):  
Chemical Composition ◽  
Solar System ◽  
Neutron Source ◽  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Agb Stars ◽  
Intermediate Mass ◽  
Low Mass ◽  
Giant Branch Stars

This review discusses the chemical composition of AGB stars in the light of predictions for intermediate-mass (3-8 M⊙, 22Ne(α,n) = the neutron source) and low-mass (< 3 M⊙, 13C(α,n) = the neutron source) stars. LM-AGB models can be constructed with envelopes having a composition quite similar to that of solar system material, the SiC grains recently discovered in meteorites, and real AGB stars in the sequence of spectral types M → S → C. Stellar counterparts of the IM-AGB models have yet to be discovered.

scholarly journals Fluorine Production from AGB and WR Stars

2002 ◽  
Vol 187 ◽  
pp. 71-73 ◽  
Author(s):  
Nami Mowlavi ◽  
Georges Meynet
Keyword(s):  
Solar System ◽  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Giant Branch Stars

The role of Wolf-Rayet and asymptotic giant branch stars in the production of the Solar System fluorine abundance is analyzed. It is shown that both these stars can be important sources of galactic fluorine. However, the uncertainties affecting the predictions, especially those from asymptotic giant branch stars, do not allow to give quantitative figures yet.

Evolution and Nucleosynthesis in Low‐Mass Asymptotic Giant Branch Stars. I. Formation of Population I Carbon Stars

1997 ◽  
Vol 478 (1) ◽  
pp. 332-339 ◽  
Author(s):  
Oscar Straniero ◽  
Alessandro Chieffi ◽  
Marco Limongi ◽  
Maurizio Busso ◽  
Roberto Gallino ◽  
...  
Keyword(s):  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Carbon Stars ◽  
Low Mass ◽  
Giant Branch Stars

scholarly journals EVOLUTION OF THERMALLY PULSING ASYMPTOTIC GIANT BRANCH STARS. IV. CONSTRAINING MASS LOSS AND LIFETIMES OF LOW MASS, LOW METALLICITY AGB STARS

2014 ◽  
Vol 790 (1) ◽  
pp. 22 ◽  
Author(s):  
Philip Rosenfield ◽  
Paola Marigo ◽  
Léo Girardi ◽  
Julianne J. Dalcanton ◽  
Alessandro Bressan ◽  
...  
Keyword(s):  
Mass Loss ◽  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Agb Stars ◽  
Low Metallicity ◽  
Low Mass ◽  
Giant Branch Stars

scholarly journals Stellar origin of the 182Hf cosmochronometer and the presolar history of solar system matter

Science ◽  
2014 ◽  
Vol 345 (6197) ◽  
pp. 650-653 ◽  
Author(s):  
Maria Lugaro ◽  
Alexander Heger ◽  
Dean Osrin ◽  
Stephane Goriely ◽  
Kai Zuber ◽  
...  
Keyword(s):  
Solar System ◽  
Neutron Capture ◽  
Half Life ◽  
Slow Neutron ◽  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Early Solar System ◽  
Capture Process ◽  
History Of ◽  
Giant Branch Stars

Among the short-lived radioactive nuclei inferred to be present in the early solar system via meteoritic analyses, there are several heavier than iron whose stellar origin has been poorly understood. In particular, the abundances inferred for 182Hf (half-life = 8.9 million years) and 129I (half-life = 15.7 million years) are in disagreement with each other if both nuclei are produced by the rapid neutron-capture process. Here, we demonstrate that contrary to previous assumption, the slow neutron-capture process in asymptotic giant branch stars produces 182Hf. This has allowed us to date the last rapid and slow neutron-capture events that contaminated the solar system material at ∼100 million years and ∼30 million years, respectively, before the formation of the Sun.

scholarly journals EVOLUTION, NUCLEOSYNTHESIS, AND YIELDS OF LOW-MASS ASYMPTOTIC GIANT BRANCH STARS AT DIFFERENT METALLICITIES

2009 ◽  
Vol 696 (1) ◽  
pp. 797-820 ◽  
Author(s):  
S. Cristallo ◽  
O. Straniero ◽  
R. Gallino ◽  
L. Piersanti ◽  
I. Domínguez ◽  
...  
Keyword(s):  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Low Mass ◽  
Giant Branch Stars
Sign in / Sign up

Export Citation Format

Share Document