Results 21 to 30 of about 9,884 (228)
A New Catalog of Asymptotic Giant Branch Stars in Our Galaxy [PDF]
Astrophysical Journal Supplement Series, 2021 We present a new catalog of 11,209 O-rich asymptotic giant branch (AGB) stars and 7172 C-rich AGB stars in our Galaxy, identifying more AGB stars in the bulge component and considering more visual carbon stars.
K. Suh
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Multiple Stellar Populations in Asymptotic Giant Branch Stars of Galactic Globular Clusters [PDF]
, 2021 Multiple stellar populations (MPs) are a distinct characteristic of globular clusters (GCs). Their general properties have been widely studied among main-sequence, red giant branch (RGB), and horizontal branch (HB) stars, but a common framework is still ...
E. Lagioia +10 more
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Post-AGB Stars as Tracers of AGB Nucleosynthesis: An Update
Universe, 2022 The chemical evolution of galaxies is governed by the chemical yields from stars, and here we focus on the important contributions from asymptotic giant branch (AGB) stars. AGB nucleosynthesis is, however, still riddled with complexities.
Devika Kamath, Hans Van Winckel
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Universe, 2021 Lead (Pb) is predicted to have large over-abundances with respect to other s-process elements in Asymptotic Giant Branch (AGB) stars, especially of low metallicities.
Devika Kamath, Hans Van Winckel
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Rubidium-Rich Asymptotic Giant Branch Stars [PDF]
Science, 2006 A long-debated issue concerning the nucleosynthesis of neutron-rich elements in asymptotic giant branch (AGB) stars is the identification of the neutron source. We report intermediate-mass (4 to 8 solar masses) AGB stars in our Galaxy that are rubidium-rich as a result of overproduction of the long-lived radioactive isotope 87
García-Hernández, D. A. +5 more
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Evolution of asymptotic giant branch stars. II. Optical to far-infrared isochrones with improved TP- [PDF]
, 2007 We present a large set of theoretical isochrones, whose distinctive features mostly reside on the greatly-improved treatment of the thermally-pulsing asymptotic giant branch (TP-AGB) phase.
P. Marigo +16 more
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Neutron Capture in Low-Mass Asymptotic Giant Branch Stars: Cross Sections and Abundance Signatures [PDF]
, 1999 Recently improved information on the stellar (n, γ) cross sections of neutron magic nuclei at N = 82, and in particular of 142Nd, turn out to represent a sensitive test for models of s-process nucleosynthesis.
C. Arlandini +6 more
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Turbulent dynamo in asymptotic giant branch stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2002 Using recent results on the operation of turbulent dynamos, we show that a turbulent dynamo can amplify a large scale magnetic field in the envelopes of asymptotic giant branch (AGB) stars. We propose that a slow rotation of the AGB envelope can fix the symmetry axis, leading to the formation of an axisymmetric magnetic field structure.
Soker, Noam, Zoabi, Essam
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Luminosity Functions for Asymptotic Giant Branch Stars [PDF]
Symposium - International Astronomical Union, 1984 To understand the evolution of carbon and oxygen rich asymptotic giant branch (AGB) stars it is important to observationally establish the relations between parameters such as luminosity, age, and metallicity. The existence of luminous (brighter than the top of the first giant branch) AGB stars in clusters in the Magellanic Clouds (Mould and Aaronson ...
Jay A. Frogel, V.M. Blanco
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The Importance of the 13C(α,n)16O Reaction in Asymptotic Giant Branch Stars [PDF]
Astrophysical Journal, 2018 Low-mass asymptotic giant branch stars are among the most important polluters of the interstellar medium. In their interiors, the main component (A ≳ 90) of the slow neutron capture process (the s-process) is synthesized, the most important neutron ...
S. Cristallo +11 more
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