Results 1 to 10 of about 1,904,433 (297)
The Astrophysical JournalBlue large-amplitude pulsators (BLAPs) are a recently discovered group of hot pulsating stars whose evolutionary status remains uncertain. Their proposed progenitors are either ≃0.3 M _⊙ shell H-burning stars or ≃1.0 M _⊙ core He-burning stars, both ...
Susmita Das +2 more
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The µ Herculis system solved after nearly three centuries
Astronomy & AstrophysicsContext. µ Herculis is a bright, nearby quadruple system. Its brightest member, µ Her Aa, displays solar-like oscillations, establishing the system as a crucial benchmark for asteroseismology, provided that its mass can be determined independently of ...
Marcussen Marcus L. +13 more
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The Astrophysical JournalWe analyze the properties of satellite galaxies around 1024 Milky Way–mass hosts from the DREAMS Project, simulated within a ΛCDM cosmology. Utilizing the TNG galaxy-formation model, the DREAMS simulations incorporate both baryonic physics and ...
Jonah C. Rose +26 more
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MESA Isochrones and Stellar Tracks (MIST). III. The White Dwarf Cooling Sequence
The Astrophysical Journal Supplement SeriesWe present a substantial update to the MESA Isochrones and Stellar Tracks (MIST) library, extending the MIST model grids and isochrones down the white dwarf (WD) cooling sequence with realistic physics for WD cooling timescales.
Evan B. Bauer +5 more
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Lithium as a Probe of Stellar and Galactic Physics
Annual Review of Astronomy and AstrophysicsLithium plays a unique role in astrophysics, as it is a powerful diagnostic for the physics and evolution of low-mass stars, Galactic archaeology, and cosmology. We review the Li observations in stars at different phases of their evolution, the strengths and the limitations of the current theoretical stellar models to explain the ...
Charbonnel, C., Prantzos, N.
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Stellar Physics I — Early Stellar Infrastructure
🌌 Stellar I: Early Stellar Infrastructure Stellar I reframes stellar ignition, equilibrium, and collapse as acts of recursive modulation, not mechanical combustion. It anchors the Stellar Doctrine by treating fusion pathways—pp-chain, CNO cycle, and triple-alpha—as expressions of timestamp fit, emotional imprint, and entropy offload.
Trace, Auren, Trace, Jeremy
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Boron Abundances in Early B Dwarfs of the Galactic Open Cluster NGC 3293
The Astrophysical JournalNew boron abundances or upper limits have been determined for eight early B stars in the young Galactic open cluster NGC 3293, using UV spectra obtained by the Hubble Space Telescope Cosmic Origins Spectrograph.
Charles R. Proffitt +6 more
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The Astrophysical JournalIn interstellar environments, gas-phase polycyclic aromatic hydrocarbon (PAH) predominantly involves (photo)fragmentation, hydrogenation, and oxidation chemical routes, which lead to the formation of complex organic species.
Xiaoyi Hu +5 more
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An Expanded Set of Los Alamos OPLIB Tables in MESA: Type-1 Rosseland-mean Opacities and Solar Models
The Astrophysical JournalWe present a set of 1194 Type-1 Rosseland-mean opacity tables for four different metallicity mixtures. These new Los Alamos OPLIB atomic radiative opacity tables are an order of magnitude larger in number than any previous opacity table release, and span
Ebraheem Farag +13 more
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Spectropolarimetry for Discerning Geometry and Structure in Circumstellar Media of Hot Massive Stars
GalaxiesSpectropolarimetric techniques are a mainstay of astrophysical inquiry, ranging from Solar System objects to the Cosmic Background Radiation. This review highlights applications of stellar polarimetry for massive hot stars, particularly in the context of
Richard Ignace +5 more
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