L. Siess

Data from "Three-dimensional simulations of accretion disks in pre-CE systems --- II. Accretion efficiency and angular momentum transport"

Juarez-Garcia Ana Lourdes, Mike Y. M. Lau, Orsola De Marco, L. Siess et autres

Data, configuration files and videos that can be used to reproduce results from the paper: "Three-dimensional simulations of accretion disks in pre-CE systems --II. Accretion efficiency and angular momentum transport". Description: The data format is the Phantom native data format with the …

au, be (code pays fourni par la source)

Data from "Three-dimensional simulations of accretion disks in pre-CE systems --- II. Accretion efficiency and angular momentum transport"

Juarez-Garcia Ana Lourdes, Mike Y. M. Lau, Orsola De Marco, L. Siess et autres

Data, configuration files and videos that can be used to reproduce results from the paper: "Three-dimensional simulations of accretion disks in pre-CE systems --II. Accretion efficiency and angular momentum transport". Description: The data format is the Phantom native data format with the …

au, be (code pays fourni par la source)

Detection of Actinides in CEMP-rs Stars

A. M. Riyas, Drisya Karinkuzhi, S. Van Eck, A. Choplin et autres

Abstract The carbon-enhanced metal-poor stars with hybrid enrichments of slow and rapid neutron-capture elements, the so-called CEMP-rs stars, still raise many questions due to their elusive abundance signatures. In our recent analysis, we found that heavy r -process elements are enhanced in …

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

LSP-MIST: Long Secondary Periods as Tracers of Companions Around Red Giants.

D. M. Skowron, Patryk Iwanek, Piotr Kołaczek-Szymański, L. Siess et autres

Long Secondary Periods (LSPs) in pulsating red giants remain one of the major unsolved puzzles in stellar variability. The ERC project LSP-MIST investigates whether the LSP variability may be caused by low-mass, possibly substellar companions embedded in dusty clouds, orbiting around evolved …

pl, be (code pays fourni par la source)

LSP-MIST: Long Secondary Periods as Tracers of Companions Around Red Giants.

D. M. Skowron, Patryk Iwanek, Piotr Kołaczek-Szymański, L. Siess et autres

Long Secondary Periods (LSPs) in pulsating red giants remain one of the major unsolved puzzles in stellar variability. The ERC project LSP-MIST investigates whether the LSP variability may be caused by low-mass, possibly substellar companions embedded in dusty clouds, orbiting around evolved …

pl, be (code pays fourni par la source)

Constraining Neutron-Capture Nucleosynthesis from Surface Chemical Composition of Chemically Peculiar Stars: The Puzzling Case of HE 1005-1439

Aruna Goswami, A. Choplin, Partha Pratim Goswami, L. Siess et autres

The chemical composition of stellar atmospheres provides a valuable window into the complex processes of stellar nucleosynthesis. Among chemically peculiar cool stars, many objects are the products of mass transfer in binary systems, including most carbon stars, CH stars, and CEMP-s and …

in, ch, be (code pays fourni par la source)

The intermediate neutron capture process. VI. Proton ingestion and i-process in rotating magnetic asymptotic giant branch stars

A. Choplin, L. Siess, S. Goriely, P. Eggenberger et autres

The intermediate neutron-capture process (i-process) can occur during proton ingestion events (PIEs), which may take place in the early evolutionary phases of asymptotic giant branch (AGB) stars. We investigate the impact of rotational and magnetic mixing on i-process nucleosynthesis in low-metallicity, low-mass …

The intermediate neutron capture process. VI. Proton ingestion and i-process in rotating magnetic asymptotic giant branch stars

A. Choplin, L. Siess, S. Goriely, P. Eggenberger et autres

The intermediate neutron-capture process (i-process) can occur during proton ingestion events (PIEs), which may take place in the early evolutionary phases of asymptotic giant branch (AGB) stars. We investigate the impact of rotational and magnetic mixing on i-process nucleosynthesis in low-metallicity, low-mass …

Evidence for the Keplerian orbit of a close companion around a giant star

M. Esseldeurs, L. Decin, J. De Ridder, Y. Mori et autres

ru, be, au, jp, fr, gb, us, nl, de, cl, es, th, se (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)

Abundance of heavy r-process elements in CEMP-rs stars: The role of the i-process

Abdul Riyas, Drisya Karinkuzhi, S. Van Eck, A. Choplin et autres

Carbon-enhanced metal-poor (CEMP) stars are ancient stars enriched in carbon and heavy elements. Some of these stars exhibit enhanced s-process and/or r-process elements, hence are classified as CEMP-s, CEMP-rs, or CEMP-r. This classification is challenging due to the limited availability of heavy …