Results 11 to 20 of about 29,820 (298)

On Carbon Burning in Super Asymptotic Giant Branch Stars [PDF]

open access: yesThe Astrophysical Journal, 2015
We explore the detailed and broad properties of carbon burning in Super Asymptotic Giant Branch (SAGB) stars with 2755 MESA stellar evolution models.
Farmer, R., Fields, C. E., Timmes, F. X.
core   +8 more sources

Extremely Metal-Poor Asymptotic Giant Branch Stars [PDF]

open access: yesUniverse, 2022
Little is known about the first stars, but hints on this stellar population can be derived from the peculiar chemical composition of the most metal-poor objects in the Milky Way and in resolved stellar populations of nearby galaxies.
Mario Cirillo   +2 more
doaj   +4 more sources

Asymptotic Giant Branch Stars and presolar grains [PDF]

open access: yesEPJ Web of Conferences, 2020
Starting from the recognition that radioactive isotopes were present alive in the Early Solar System, inducing composition anomalies from their decay, and through the discovery that other important anomalies affected also stable species, we shall discuss
Busso Maurizio   +2 more
doaj   +3 more sources

Magnetic Flares on Asymptotic Giant Branch Stars [PDF]

open access: yesThe Astrophysical Journal, 2002
We investigate the consequences of magnetic flares on the surface of asymptotic giant branch (AGB) and similar stars. In contrast to the solar wind, in the winds of AGB stars the gas cooling time is much shorter than the outflow time.
Bochanski J. J.   +13 more
core   +6 more sources

Solar-Like Cycle in Asymptotic Giant Branch Stars [PDF]

open access: yesThe Astrophysical Journal, 2000
I propose that the mechanism behind the formation of concentric semi-periodic shells found in several planetary nebulae (PNs) and proto-PNs, and around one asymptotic giant branch (AGB) star, is a solar-like magnetic activity cycle in the progenitor AGB ...
Andersen A. C.   +6 more
core   +5 more sources

CHEMICAL ANALYSIS OF ASYMPTOTIC GIANT BRANCH STARS IN M62 [PDF]

open access: yesThe Astrophysical Journal, 2015
We have collected UVES-FLAMES high-resolution spectra for a sample of 6 asymptotic giant branch (AGB) and 13 red giant branch (RGB) stars in the Galactic globular cluster (GC) M62 (NGC 6266).
E. Lapenna   +7 more
semanticscholar   +7 more sources

Introduction to Asymptotic Giant Branch Stars

open access: yesJournal of Physics: Conference Series, 2016
A brief introduction on the main characteristics of the asymptotic giant branch stars (briefly: AGB) is presented. We describe a link to observations and outline basic features of theoretical modeling of these important evolutionary phases of stars.
M. Eid
semanticscholar   +2 more sources

Evolution of thermally pulsing asymptotic giant branch stars – II. Dust production at varying metallicity [PDF]

open access: bronze, 2013
We present the dust ejecta of the new stellar models for the Thermally Pulsing Asymptotic Giant Branch (TP-AGB) phase computed with the COLIBRI code. We use a formalism of dust growth coupled with a stationary wind for both M and C-stars. In the original
A. Nanni   +3 more
semanticscholar   +3 more sources

The Galactic distribution of asymptotic giant branch stars [PDF]

open access: bronzeMonthly 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.
Tom Jackson   +2 more
openalex   +3 more sources

STARDUST FROM ASYMPTOTIC GIANT BRANCH STARS [PDF]

open access: bronzeThe Astrophysical Journal, 2009
The formation of dust in the outflows of low- and intermediate-mass stars on the first giant branch and asymptotic giant branch (AGB) is studied and the relative contributions of stars of different initial masses and metallicities to the interstellar medium (ISM) at the instant of solar system formation are derived.
H. P. Gail   +3 more
openalex   +3 more sources

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