scholarly journals Neutron Capture in Low‐Mass Asymptotic Giant Branch Stars: Cross Sections and Abundance Signatures

1999 ◽  
Vol 525 (2) ◽  
pp. 886-900 ◽  
Author(s):  
Claudio Arlandini ◽  
Franz Kappeler ◽  
Klaus Wisshak ◽  
Roberto Gallino ◽  
Maria Lugaro ◽  
...  
Keyword(s):  
Cross Sections ◽  
Neutron Capture ◽  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Low Mass ◽  
Giant Branch Stars

Evolution and Nucleosynthesis in Low‐Mass Asymptotic Giant Branch Stars. II. Neutron Capture and thes‐Process

1998 ◽  
Vol 497 (1) ◽  
pp. 388-403 ◽  
Author(s):  
Roberto Gallino ◽  
Claudio Arlandini ◽  
Maurizio Busso ◽  
Maria Lugaro ◽  
Claudia Travaglio ◽  
...  
Keyword(s):  
Neutron Capture ◽  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
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

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.

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

The role of asymptotic giant branch stars in the chemical evolution of the Galaxy

2018 ◽  
Vol 14 (S343) ◽  
pp. 510-511
Author(s):  
G. Tautvaišienė ◽  
C. Viscasillas Vázquez ◽  
V. Bagdonas ◽  
R. Smiljanic ◽  
A. Drazdauskas ◽  
...  
Keyword(s):  
High Resolution ◽  
Neutron Capture ◽  
Open Clusters ◽  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Galactic Disc ◽  
The Galaxy ◽  
Process Elements ◽  
Giant Branch Stars

AbstractAsymptotic giant branch stars play an important role in enriching galaxies by s-process elements. Recent studies have shown that their role in producing s-process elements in the Galactic disc was underestimated and should be reconsidered. Based on high-resolution spectra we have determined abundances of neutron-capture elements in a sample of 310 stars located in the field and open clusters and investigated elemental enrichment patterns according to their age and mean galactocentric distances.

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