Results 61 to 70 of about 1,424,303 (245)

Pulsating stars in the VMC survey

open access: yesEPJ Web of Conferences, 2017
The VISTA survey of the Magellanic Clouds system (VMC) began observations in 2009 and since then, it has collected multi-epoch data at Ks and in addition multi-band data in Y and J for a wide range of stellar populations across the Magellanic system ...
Cioni Maria-Rosa L.   +6 more
doaj   +1 more source

Evolution and Final Fate of Solar Metallicity Stars in the Mass Range 7–15 M ⊙. I. The Transition from Asymptotic Giant Branch to Super-AGB Stars, Electron Capture, and Core-collapse Supernova Progenitors

open access: yesAstrophysical Journal Supplement Series
According to a standard initial mass function, stars in the range 7–12 M ⊙ constitute ∼50% (by number) of the stars more massive than ∼7 M ⊙, but in spite of this, their evolutionary properties, and in particular their final fate, are still scarcely ...
M. Limongi   +3 more
semanticscholar   +1 more source

Evolution of asymptotic giant branch stars. I. Updated synthetic TP-AGB models and their basic calibration [PDF]

open access: yes, 2007
We present new synthetic models of the TP-AGB evolution. They are computed for 7 values of initial metal content (Z from 0.0001 to 0.03) and for initial masses between 0.5 and 5.0 M , thus extending the low- and intermediate-mass tracks of Girardi et al.
P. Marigo, L. Girardi
semanticscholar   +1 more source

Asymptotic giant branch stars as astroparticle laboratories [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1999
8 pages, 3 tables, 8 figures, accepted for publication in ...
Dominguez, Inma   +2 more
openaire   +2 more sources

The Large Magellanic Cloud as a laboratory for hot bottom burning in massive asymptotic giant branch stars [PDF]

open access: yes, 2015
We use Spitzer observations of the rich population of Asymptotic Giant Branch stars in the Large Magellanic Cloud (LMC) to test models describing the internal structure and nucleosynthesis of the most massive of these stars, i.e.
P. Ventura   +6 more
semanticscholar   +1 more source

The accretion of brown dwarfs and planets by giant stars -- I. Asymptotic giant branch stars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1999
We study the response of the structure of an asymptotic giant branch (AGB) star to the accretion of a brown dwarf or planet in its interior. In particular, we examine the case in which the brown dwarf spirals-in, and the accreted matter is deposited at the base of the convective envelope and in the thin radiative shell surrounding the hydrogen burning ...
Siess, Lionel, Livio, Mario
openaire   +2 more sources

Stellar Models and Yields of Asymptotic Giant Branch Stars [PDF]

open access: yesPublications Astronomical Society of Australia, 2007
We present stellar yields calculated from detailed models of low and intermediate-mass asymptotic giant branch (AGB) stars. We evolve models with a range of mass from 1 to 6 M⊙, and initial metallicities from solar to 1/200th of the solar metallicity ...
A. Karakas, J. Lattanzio
semanticscholar   +1 more source

Planetary nebulae: a key tool to reconstruct the evolutionary history of stars

open access: yesFrontiers in Astronomy and Space Sciences
Planetary nebulae, among the most fascinating objects in the sky, have been extensively investigated in the past years, because their study provides important information on the low and intermediate mass stellar populations of the host environment ...
Paolo Ventura   +3 more
doaj   +1 more source

ASYMPTOTIC GIANT BRANCH VARIABLES

open access: yesOdessa Astronomical Publications, 2017
Asymptotic Giant Branch variable are the brightest and most distinctive individual stars to be found in the resolved, old and inter mediate age, stellar populations of galaxies in the Local Group and beyond.
P. A. Whitelock
doaj   +1 more source

A proposed direct measurement of cross section at Gamow window for key reaction 19F(p,α) 16O in Asymptotic Giant Branch stars with a planned accelerator in CJPL [PDF]

open access: yes, 2016
In 2014, the National Natural Science Foundation of China (NSFC) approved the Jinping Underground Nuclear Astrophysics laboratory (JUNA) project, which aims at direct cross-section measurements of four key stellar nuclear reactions right down to the ...
Jianjun He   +18 more
semanticscholar   +1 more source

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