Asteroseismology and interferometry

MS Cunha, C Aerts, J Christensen-Dalsgaard… - The Astronomy and …, 2007 - Springer
Asteroseismology provides us with a unique opportunity to improve our understanding of
stellar structure and evolution. Recent developments, including the first systematic studies of …

AGB variables and the Mira period–luminosity relation

PA Whitelock, MW Feast… - Monthly Notices of the …, 2008 - academic.oup.com
Published data for large-amplitude asymptotic giant branch variables in the Large
Magellanic Cloud (LMC) are re-analysed to establish the constants for an infrared (K) period …

Radiative hydrodynamic simulations of red supergiant stars-III. Spectro-photocentric variability, photometric variability, and consequences on Gaia measurements

A Chiavassa, E Pasquato, A Jorissen, S Sacuto… - Astronomy & …, 2011 - aanda.org
Context. It has been shown that convection in red supergiant stars (RSG) gives rise to large
granules that cause surface inhomogeneities and shock waves in the photosphere. The …

New observations and models of circumstellar CO line emission of AGB stars in the Herschel SUCCESS programme

T Danilovich, D Teyssier, K Justtanont… - Astronomy & …, 2015 - aanda.org
Context. Asymptotic giant branch (AGB) stars are in one of the latest evolutionary stages of
low to intermediate-mass stars. Their vigorous mass loss has a significant effect on the …

New insights into the dust formation of oxygen-rich AGB stars

I Karovicova, M Wittkowski, K Ohnaka… - Astronomy & …, 2013 - aanda.org
Context. Asymptotic giant branch (AGB) stars are one of the major sources of dust in the
universe. The formation of molecules and dust grains and their subsequent expulsion into …

The shock-heated atmosphere of an asymptotic giant branch star resolved by ALMA

W Vlemmings, T Khouri, E O'Gorman, E De Beck… - Nature …, 2017 - nature.com
Our current understanding of the chemistry and mass-loss processes in Sun-like stars at the
end of their evolution depends critically on the description of convection, pulsations and …

Dynamical opacity-sampling models of Mira variables–II. Time-dependent atmospheric structure and observable properties of four M-type model series

MJ Ireland, M Scholz, PR Wood - Monthly Notices of the Royal …, 2011 - academic.oup.com
We present four model series of the codex dynamical opacity-sampling models of Mira
variables with solar abundances, designed to have parameters similar to o Cet, R Leo and R …

Late stages of stellar evolution–Herschel's contributions

L Decin - Advances in Space Research, 2012 - Elsevier
Cool objects glow in the infrared. The gas and solid-state species that escape the stellar
gravitational attraction of evolved late-type stars in the form of a stellar wind are cool, with …

Search for surface magnetic fields in Mira stars-First detection in χ Cygni

A Lèbre, M Aurière, N Fabas, D Gillet, F Herpin… - Astronomy & …, 2014 - aanda.org
Context. So far, surface magnetic fields have never been detected on Mira stars. Only
recently have the spectropolarimetric capabilities of measuring it via the Zeeman effect …

Evolved star water maser cloud size determined by star size

AMS Richards, S Etoka, MD Gray, EE Lekht… - Astronomy & …, 2012 - aanda.org
Context. Cool, evolved stars undergo copious mass loss but the detailed mechanisms and
the form in which the matter is returned to the ISM are still under debate. Aims. We …