Carbon star formation and neutron-rich isotope formation in low-mass asymptotic giant branch stars

1983 ◽  
Vol 275 ◽  
pp. L65 ◽  
Author(s):  
I., Jr. Iben
Keyword(s):  
Star Formation ◽  
Carbon Star ◽  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Neutron Rich Isotope ◽  
Low Mass ◽  
Giant Branch Stars

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

Flash‐Driven Convective Mixing in Low‐Mass, Metal‐deficient Asymptotic Giant Branch Stars: A New Paradigm for Lithium Enrichment and a Possibles‐Process

2004 ◽  
Vol 602 (1) ◽  
pp. 377-387 ◽  
Author(s):  
Nobuyuki Iwamoto ◽  
Toshitaka Kajino ◽  
Grant J. Mathews ◽  
Masayuki Y. Fujimoto ◽  
Wako Aoki
Keyword(s):  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
New Paradigm ◽  
Convective Mixing ◽  
Low Mass ◽  
Giant Branch Stars ◽  
Lithium Enrichment

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

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

Meteoritic Silicon Carbide Grains with Unusual S[CLC]i[/CLC]-Isotopic Compositions: Evidence for an Origin in Low-Mass, Low-Metallicity Asymptotic Giant Branch Stars

1997 ◽  
Vol 487 (1) ◽  
pp. L101-L104 ◽  
Author(s):  
P. Hoppe ◽  
P. Annen ◽  
R. Strebel ◽  
P. Eberhardt ◽  
R. Gallino ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Isotopic Compositions ◽  
Low Metallicity ◽  
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 Lithium production by thermohaline mixing in low-mass, low-metallicity asymptotic giant branch stars

2009 ◽  
Vol 5 (S268) ◽  
pp. 405-410
Author(s):  
Richard J. Stancliffe ◽  
George C. Angelou ◽  
John C. Lattanzio
Keyword(s):  
Main Sequence ◽  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Agb Stars ◽  
Low Metallicity ◽  
Low Mass ◽  
Thermal Pulses ◽  
Giant Branch Stars

AbstractWe examine the effects of thermohaline mixing on the composition of the envelopes of low-metallicity asymptotic giant branch (AGB) stars. We have evolved models of 1, 1.5 and 2M⊙ and of metallicity Z = 10−4 from the pre-main sequence to the end of the thermal pulsing asymptotic giant branch with thermohaline mixing applied throughout the simulations. We find that the small amount of 3He that remains after the first giant branch is enough to drive thermohaline mixing on the AGB and that the mixing is most efficient in the early thermal pulses, with the efficiency dropping from pulse to pulse. We note a surprising increase in the 7Li abundance, with log10ϵ(7Li) reaching values of over 2.5 in the 1.5M⊙ model. It is thus possible to get stars which are both C- and Li-rich at the same time. We compare our models to measurements of carbon and lithium in carbon-enhanced metal-poor stars which have not yet reached the giant branch. These models can simultaneously reproduced the observed C and Li abundances of carbon-enhanced metal-poor turn-off stars that are Li-rich.

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