Results 21 to 30 of about 1,424,303 (245)
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 +5 more
semanticscholar +1 more source
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
openaire +1 more source
Vortices in the Wakes of Asymptotic Giant Branch Stars [PDF]
The Astrophysical Journal, 2007 Vortices have been postulated at a range of size scales in the universe, including at the stellar-size scale. While hydrodynamically simulating the wind from an asymptotic giant branch (AGB) star moving through and sweeping up its surrounding interstellar medium (ISM), we have found vortices on the size scale of 10-1 to 101 pc in the wake of the star ...
Wareing, C. J. +2 more
openaire +2 more sources
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
semanticscholar +1 more source
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
openaire +2 more sources
The Galactic distribution of asymptotic giant branch stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2002 We study the Galactic distribution of ~10,000 Asymptotic Giant Branch (AGB) stars selected by IRAS colors and variability index. The distance to each star is estimated by assuming a narrow luminosity function and a model-derived bolometric correction.
Jackson, T., Ivezic, Z., Knapp, G. R.
openaire +2 more sources
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
semanticscholar +1 more source
Adiabatic Mass Loss in Binary Stars. III. From the Base of the Red Giant Branch to the Tip of the Asymptotic Giant Branch [PDF]
Astrophysical Journal, 2020 The distinguishing feature of the evolution of close binary stars is the role played by the mass exchange between the component stars. Whether or not the mass transfer is dynamically stable is one of the essential questions in binary evolution.
H. Ge +3 more
semanticscholar +1 more source
A Distance Measurement to M33 Using Optical Photometry of Mira Variables
The Astronomical Journal, 2023 We present a systematic analysis to determine and improve the pulsation periods of 1637 known long-period Mira variables in M33 using gri -band light curves spanning ∼18 yr from several surveys, including the M33 variability survey, Panoramic Survey ...
Jia-Yu Ou +6 more
doaj +1 more source
Infrared Properties of Asymptotic Giant Branch Stars in Our Galaxy and the Magellanic Clouds [PDF]
Astrophysical Journal, 2019 We investigate the infrared properties of asymptotic giant branch (AGB) stars in our Galaxy and the Magellanic Clouds using various infrared observational data and theoretical models.
K. Suh
semanticscholar +1 more source