Results 21 to 30 of about 1,482,462 (172)

Rubidium-Rich Asymptotic Giant Branch Stars

, 2006
International audienceA long-debated issue concerning the nucleosynthesis of neutron-rich elements in asymptotic giant branch (AGB) stars is the identification of the neutron source.
García-Lario, P., García-Hernández, D. A., Plez, Bertrand, Manchado, A., d'Antona, F., Trigo-Rodríguez, J. M.   +5 more
core   +1 more source

M62 (NGC 6266) giant branch stars abundances

, 2016
VizieR online Data Catalogue associated with article published in journal Astronomical Journal (AAS) with title 'Chemical analysis of asymptotic giant branch stars in M62.' (bibcode: 2015ApJ...813 ...
Ferraro, F.R., Origlia, L., INAF, Osservatorio Astronomico di Bologna, Mucciarelli, A., Massari, Davide, Lapenna, E., Dipartimento di Fisica e Astronomia, Universit? Degli Studi di Bologna, Dalessandro, E., Lanzoni, B., Astronomy   +9 more
core   +1 more source

Population II Distance Indicators: RR Lyrae Variables, Tip of the Red Giant Branch (TRGB) Stars and J-Branch Asymptotic Giant Branch (JAGB/Carbon) Stars

, 2023
We review the theoretical underpinnings, evolutionary status, calibrations and current applications of three bright Population II extragalactic distance indicators: Tip of the Red Giant Branch (TRGB) stars, RR Lyrae variables and J-Branch Asymptotic ...
Madore, Barry F., Freedman, Wendy L.
core  

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

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

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  

Second‐Harmonic Generation Enhancement in Polar Dielectric Films via Nonlocal Longitudinal Modes and Berreman Modes

Nanophotonics, Volume 15, Issue 18, 25 September 2026.
Nonlocal longitudinal resonances in ultrathin AlN enable thickness‐controlled harmonic matching between a resonance at the fundamental frequency and the Berreman resonance at the second‐harmonic frequency. The resulting simultaneous field enhancement at both frequencies substantially amplifies the predicted second‐harmonic response, revealing a double ...
Yining Yao, Ye Zhang, Jie Luo, Dongliang Gao, Hao Hu, Lei Gao   +5 more
wiley   +1 more source

On Carbon Burning in Super Asymptotic Giant Branch Stars

, 2019
<p>This entry contains input files to reproduce the results of the paper: <a href="https://ui.adsabs.harvard.edu/#abs/2015ApJ...807..184F/abstract">On Carbon Burning in Super Asymptotic Giant Branch Stars </a></p> <p>MESA ...
Fields, C. E (6446735), Farmer, R (6446699), Farmer, R, Timmes, F.X (6446738), Timmes, F.X, Fields, C. E   +5 more
core   +1 more source

Mg And Al production in intermediate-mass asymptotic giant branch stars

, 2015
We study how the production of the magnesium and aluminum isotopes in intermediate mass Asymptotic Giant Branch stars is affected by uncertainties in the 22Ne + α-capture reaction rates.
Wiescher, M., Karakas, Amanda, Lugaro, Maria Anna, Görres, Joachim, Ugalde, C.   +4 more
core   +1 more source

Isotopic Enrichment of Planetary Systems from Asymptotic Giant Branch Stars

The Astrophysical Journal Letters, 2023
Short-lived radioisotopes, in particular ^26 Al and ^60 Fe, are thought to contribute to the internal heating of the Earth, but are significantly more abundant in the solar system compared to the interstellar medium.
Richard J. Parker, Christina Schoettler
doaj   +1 more source