Results 61 to 70 of about 9,884 (228)

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

, 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. V. A. Department, U. Padova, Italy., Astronomical Observatory of Padova, -INAF   +5 more
semanticscholar   +1 more source

The intermediate neutron-capture process in AGB stars [PDF]

EPJ Web of Conferences, 2023
The intermediate neutron-capture process is thought to arise when protons are mixed in a convective helium-burning zone. This can happen during the early Thermally-Pulsing (TP) Asymptotic Giant Branch (AGB) phase of low-mass, low-metallicity stars. After
Choplin Arthur, Siess Lionel, Goriely Stephane   +2 more
doaj   +1 more source

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

, 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, A. Karakas, F. Dell’Agli, M. Boyer, D. A. Garc'ia-Hern'andez, M. Criscienzo, R. Schneider   +6 more
semanticscholar   +1 more source

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

Publications 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

FLUORINE ABUNDANCES IN GALACTIC ASYMPTOTIC GIANT BRANCH STARS

The Astrophysical Journal, 2010
An analysis of the fluorine abundance in Galactic asymptotic giant branch (AGB) carbon stars (24 N-type, 5 SC-type, and 5 J-type) is presented. This study uses the state-of-the-art carbon-rich atmosphere models and improved atomic and molecular line lists in the 2.3 μm region.
Abia C., Cunha K., Cristallo S., de Laverny P., Domínguez I., Eriksson K., Gialanella L., Hinkle K., IMBRIANI, GIANLUCA, Recio Blanco A., Smith V. V., Stranier, O., Wahlin R.   +12 more
openaire   +3 more sources

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]

, 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, Shi-wei Xu, Shaobo Ma, Jun Hu, Li-yong Zhang, C. Fu, N. Zhang, G. Lian, Jun Su, Yunju Li, Shengquan Yan, Yangping Shen, S. Hou, B. Jia, Tao Zhang, Xiaopeng Zhang, B. Guo, S. Kubono, Weiping Liu   +18 more
semanticscholar   +1 more source

ASYMPTOTIC GIANT BRANCH VARIABLES

Odessa 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

Asymptotic Giant Branch Stars [PDF]

, 2004
Preface Chapter 1: Introduction: H.J. Habing and H. Olofsson N.B.: This chapter is not yet completed! 1.1 Bits of history 1.2 The structure of AGB stars 1.3 Observational characteristics of AGB stars 1.4 Distinctive properties of AGB stars Chapter 2: Evolution, Nucleosynthesis and Pulsation: P. Wood and J. Lattanzio 2.1 Basic observational properties 2.
openaire   +1 more source

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

Frontiers 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, Silvia Tosi, Flavia Dell’Agli, Stefano Bianchi   +3 more
doaj   +1 more source

Model Dust Envelopes for Asymptotic Giant Branch Stars. I. OH/IR Stars [PDF]

Journal of Astronomy and Space Sciences, 1995
OH/IR stars are the most massive and youngest subclass in asymptotic giant branch stars which pass through sporadic superwind phases. We have modeled the dust envelopes around OH/IR stars with close attention to the evolution of the structure of the dust
Kyung-Won Suh
doaj