Properties of the Variation of the Infrared Emission of OH/IR Stars III. The M Band Light Curves [PDF]
Journal of Astronomy and Space Sciences, 2010 To study properties of the pulsation in the infrared emission for long period variables, we have collected and analyzed the infrared observational data at M band for 12 OH/IR stars.
Young-Joo Kwon, Kyung-Won Suh
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Blue Stragglers After the Main Sequence [PDF]
, 2008 We study the post-main sequence evolution of products of collisions between main sequence stars (blue stragglers), with particular interest paid to the horizontal branch and asymptotic giant branch phases.
Alison Sills +22 more
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Studying Asymptotic Giant Branch Stars in the JWST Era
Universe, 2020 We explore the potential offered by the incoming launch of the James Webb Space Telescope, to study the stars evolving through the asymptotic giant branch (AGB) phase. To this aim we compare data of AGB stars in the Large Magellanic Cloud, taken with the
Paolo Ventura +3 more
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Multiple populations along the asymptotic giant branch of the globular cluster M 4 [PDF]
, 2016 Nearly all Galactic globular clusters host stars that display characteristic abundance anti-correlations, like the O-rich/Na-poor pattern typical of field halo stars, together with O-poor/Na-rich additional components.
A. Savino +13 more
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An Empirical formula for the mass-loss rates of dust-enshrouded red supergiants and oxygen-rich asymptotic giant branch stars [PDF]
, 2005 We present an empirical determination of the mass-loss rate as a function of stellar luminosity and effective tem- perature, for oxygen-rich dust-enshrouded Asymptotic Giant Branch stars and red supergiants.
J. V. Loon +3 more
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Optical Spectropolarimetry of Asymptotic Giant Branch and Post–Asymptotic Giant Branch Stars
The Astrophysical Journal, 2006 Spectropolarimetric observations are presented for 21 AGB stars, 13 proto-planetary nebulae (PPNs), and two R CrB-type stars. The spectra cover the wavelength range from ~4200 to 8400 A with 16 A resolution. Among the AGB stars, 8 of 14 M giants, five of six carbon stars, and zero of one S star showed intrinsic polarization.
John H. Bieging +3 more
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On the missing second generation AGB stars in NGC 6752 [PDF]
, 2014 In recent years the view of Galactic globular clusters as simple stellar populations has changed dramatically, it is now thought that basically all globular clusters host multiple stellar populations, each with its own chemical abundance pattern and ...
Cassisi, S +4 more
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Fluorine Production in Asymptotic Giant Branch Stars [PDF]
Symposium - International Astronomical Union, 2000 The present status of our understanding of fluorine production in asymptotic giant branch stars is reviewed, and future perspectives are presented.
N. Mowlavi, A. Jorissen, M. Arnould
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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 +2 more
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A population of binaries in the Asymptotic Giant Branch of 47 Tucanae? [PDF]
, 2006 We have used a set of archived Hubble Space Telescope/ACS images to probe the evolved populations of the globular cluster 47 Tucanae. We find an excess of Asymptotic Giant Branch (AGB) stars in the cluster core. We interpret this feature as the signature
Barbara Lanzoni +4 more
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