Results 1 to 10 of about 329,644 (212)
Massive first star binaries as new tools for Galactic archaeology [PDF]
EPJ Web of Conferences, 2022 Binary systems are important probes of the origin of stars with peculiar chemical features through the interactions between two stars. We have studied the evolution of a metal-free massive binary after the collision of the supernova ejecta with a low ...
Suda Takuma +4 more
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The Far Side of the Galactic Bar/Bulge Revealed through Semi-regular Variables
The Astronomical Journal, 2023 The Galactic bulge is critical to our understanding of the Milky Way. However, due to the lack of reliable stellar distances, the structure and kinematics of the bulge/bar beyond the Galactic center have remained largely unexplored.
Daniel R. Hey +10 more
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The Chemical Enrichment of the Milky Way Disk Evaluated Using Conditional Abundances
The Astrophysical Journal, 2023 Chemical abundances of Milky Way disk stars are empirical tracers of its enrichment history. However, they capture joint-information that is valuable to disentangle.
Bridget L. Ratcliffe, Melissa K. Ness
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The Astrophysical Journal Supplement Series, 2023 The Stellar Abundances and Galactic Evolution Survey (SAGES) of the northern sky is a specifically designed multiband photometric survey aiming to provide reliable stellar parameters with accuracy comparable to those from low-resolution optical spectra ...
Zhou Fan +37 more
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The SAGA so far: reading the history of the Galaxy with asteroseismology
EPJ Web of Conferences, 2015 Asteroseismology has the capability of delivering stellar properties which would otherwise be inaccessible, such as radii, masses and thus ages of stars.
Casagrande Luca +5 more
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Modeling the Chemical Enrichment History of the Bulge Fossil Fragment Terzan 5
The Astrophysical Journal, 2023 Terzan 5 is a heavily obscured stellar system located in the inner Galaxy. It has been postulated to be a stellar relic, a bulge fossil fragment witnessing the complex history of the assembly of the Milky Way bulge.
Donatella Romano +11 more
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Unveiling the Structure and Dynamics of Red Giants With Asteroseismology
Frontiers in Astronomy and Space Sciences, 2020 The Kepler mission observed many thousands of red giants. The long time series, some as long as the mission itself, have allowed us to study red giants with unprecedented detail. Given that red giants are intrinsically luminous, and hence can be observed
Sarbani Basu +2 more
doaj +1 more source
Analysis of age-concentration parameter correlations in globular clusters based on Gaia DR3 [PDF]
Serbian Astronomical JournalThis study investigates the empirical relationship between the ages and structural concentration parameters (λ) of globular clusters (GCs). It underscores the cosmological role of GC ages as a lower limit for the Universe's age and a probe of ...
Turaev Sobir +3 more
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Model Choice Matters for Age Inference on the Red Giant Branch
The Astrophysical JournalGalactic archaeology relies on accurate stellar parameters to reconstruct the Galaxy's history, including information on stellar ages. While the precision of data has improved significantly in recent years, stellar models used for age inference have not ...
Leslie M. Morales +2 more
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Managing and visualising geochemical data for tephra correlation with the IntChron Integration Tool
Journal of Quaternary Science, EarlyView.ABSTRACT There is now a wealth of glass‐shard geochemical data for volcanic ash (tephra) layers from a wide range of volcanoes and eruptions, providing invaluable datasets for tephrochronology. However, compilation of published data to assess tephra correlations leads to large files and requires careful management.
Victoria C. Smith +5 more
wiley +1 more source