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478 papers · 1 filter
Unlocking accretion rate diagnostics for high-mass protostars using JWST/MIRI HI lines
S. D. Reyes-Reyes, H. Beuther, E. F. van Dishoeck +14
While many aspects of high-mass star formation have been investigated, the accretion onto the central protostars is one of the most fundamental but less explored physical propertie…
MINDS. Cha Hα 1, a brown dwarf with a hydrocarbon-rich disk
María Morales-Calderón, Hyerin Jang, Aditya M. Arabhavi +23
Context. Recent JWST observations have shown that brown dwarfs (BD) are chemically rich, offering valuable insights into giant planet formation. Aims. As part of the MIRI mid-INfra…
The SAPP pipeline for the determination of stellar abundances and atmospheric parameters of stars in the core program of the PLATO mission
Matthew Raymond Gent, Maria Bergemann, Aldo Serenelli +25
We introduce the SAPP (Stellar Abundances and atmospheric Parameters Pipeline), the prototype of the code that will be used to determine parameters of stars observed within the cor…
Evolution of solar surface inflows around emerging active regions
N. Gottschling, H. Schunker, A. C. Birch +2
Solar active regions are associated with Evershed outflows in sunspot penumbrae, moat outflows surrounding sunspots, and extended inflows surrounding active regions. The latter hav…
BESTP -- An Automated Bayesian Modeling Tool for Asteroseismology
Chen Jiang, Laurent Gizon
Asteroseismic observations are crucial to constrain stellar models with precision. Bayesian Estimation of STellar Parameters (BESTP) is a tool that utilizes Bayesian statistics and…
Investigating global convective dynamos with mean-field models: full spectrum of turbulent effects required
Jörn Warnecke, Matthias Rheinhardt, Mariangela Viviani +3
The role of turbulent effects for dynamos in the Sun and stars continues to be debated. Mean-field (MF) theory provides a broadly used framework to connect these effects to fundame…