L. Decin

Interferometric view into RT Pav’s long secondary period

Benjamin Courtney-Barrer, X. Haubois, P. L. Wood, D. Dionese et autres

Context. Long secondary periods (LSPs) occur in roughly one third of evolved stars, yet their origin remains uncertain. Two leading hypotheses are oscillatory convective modes and a binary companion enshrouded in dust. Aims. We investigate the LSP in the red giant RT …

au, be, rs, pl, ru, cl, pt (code pays fourni par la source)

Interferometric view into RT Pav's long secondary period. binary vs oscillatory convective modes

Benjamin Courtney-Barrer, X. Haubois, P. R. Wood, D. Dionese et autres

Long secondary periods (LSPs) occur in about one-third of evolved stars, yet their origin remains unclear. The leading explanations are oscillatory convective modes and a binary companion embedded in dust. We investigate the LSP of the red giant RT Pav using multi-wavelength …

Tidal dissipation in evolved low- and intermediate-mass stars (Corrigendum)

M. Esseldeurs, S. Mathis, L. Decin

status: Published

be, fr (code pays fourni par la source)

Eppur si eclissa: Eccentric low-mass companions and time-in-dust selection to explain long secondary periods

L. Decin, O. Vermeulen, M. Esseldeurs, F. A. Driessen et autres

Context. Long secondary periods (LSPs) are observed in about one-third of pulsating red giants, yet this phenomenon remains unexplained. Four key observational constraints anchor the discussion: (i) a ∼30% occurrence rate in semi-regular variable AGB stars (SRVs) with a much lower rate …

ru, be, rs, pl (code pays fourni par la source)

ATOMIUM: Continuum emission and evidence of dust enhancement from binary motion

T. Danilovich, N. Samaratunge, Y. Mori, A. M. S. Richards et autres

Context. Low- and intermediate-mass stars on the asymptotic giant branch (AGB) account for a significant portion of the dust and chemical enrichment in their host galaxy. Understanding the dust formation process of these stars and their more massive counterparts, the red supergiants, …

au, be, fr, cl, us, gb, de, sk, nl, rs, pl, pt, th, se, es, uz (code pays fourni par la source)

ATOMIUM: Continuum emission and evidence of dust enhancement from binary motion

T. Danilovich, A. M. S. Richards, A. Baudry, S. Etoka et autres

Low- and intermediate-mass stars on the asymptotic giant branch (AGB) account for a significant portion of the dust and chemical enrichment in their host galaxy. Here we present ALMA observations of the continuum emission at 1.24 mm around a sample of 17 …

Fully time-dependent cloud formation from a non-equilibrium gas-phase in exoplanetary atmospheres (Corrigendum)

Sven Kiefer, Helena Lecoq-Molinos, Ch. Helling, Nidhi Bangera et autres

status: Published

Impact of H I cooling and study of accretion disks in asymptotic giant branch wind-companion smoothed particle hydrodynamic simulations

Jolien Malfait, L. Siess, M. Esseldeurs, F. De Ceuster et autres

Context. High-resolution observations reveal that the outflows of evolved low- and intermediate-mass stars harbour complex morphological structures that are linked to the presence of one or multiple companions. Hydrodynamical simulations provide a way to study the impact of a companion on the …

ru, be, sk (code pays fourni par la source)

Tidal dissipation in evolved low- and intermediate-mass stars

M. Esseldeurs, S. Mathis, L. Decin

Context. As the observed occurrence for planets or stellar companions orbiting low- and intermediate-mass evolved stars is increasing, so is the importance of understanding and evaluating the strength of their interactions. This is important for the further evolution of both our own …

be, fr (code pays fourni par la source)

Tidal Dissipation in Evolved Low and Intermediate Mass Stars

M. Esseldeurs, S. Mathis, L. Decin

As the observed occurrence for planets or stellar companions orbiting low and intermediate-mass evolved stars is increasing, so does the importance of understanding and evaluating the strength of their interactions. One of the fundamental mechanisms to understand this interaction is the tidal …

History of two mass loss processes in VY CMa. Fast outflows carving older ejecta

G. Quintana-Lacaci, L. Velilla-Prieto, M. Agúndez, J. P. Fonfría et autres

Red supergiant stars (RSGs, Minit = 10-40Msun) are known to eject large amounts of material, as much as half of their initial mass during this evolutionary phase. However, the processes powering the mass ejection in low- and intermediate-mass stars do not work …