Results 21 to 30 of about 362 (198)

The Chemical Enrichment of the Milky Way Disk Evaluated Using Conditional Abundances

open access: yesThe 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
doaj   +1 more source

The Stellar Abundances and Galactic Evolution Survey (SAGES). I. General Description and the First Data Release (DR1)

open access: yesThe 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
doaj   +1 more source

Modeling the Chemical Enrichment History of the Bulge Fossil Fragment Terzan 5

open access: yesThe 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
doaj   +1 more source

Stellar Ages for Galactic Archaeology: Methods and Applications

open access: green, 2021
Galactic Archaeology is the study of the formation and evolution of the Milky Way through the properties of stars and stellar populations. The combination of stellar ages, chemical compositions, positions, and velocities can reveal the history of star formation and chemical enrichment in different regions of the Galaxy.
C. Sahlholdt
openalex   +2 more sources

An ``archaeological'' quest for galactic supernova neutrinos [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2009
PDFLateX, 22 pages, 2 Tables, 6 ...
Lazauskas, R., Lunardini, C., Volpe, C.
openaire   +3 more sources

Dynamics for galactic archaeology [PDF]

open access: yesNew Astronomy Reviews, 2013
Our Galaxy is a complex machine in which several processes operate simultaneously: metal-poor gas is accreted, is chemically enriched by dying stars, and then drifts inwards, surrendering its angular momentum to stars; new stars are formed on nearly circular orbits in the equatorial plane and then diffuse through orbit space to eccentric and inclined ...
openaire   +3 more sources

Unveiling the Structure and Dynamics of Red Giants With Asteroseismology

open access: yesFrontiers 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

The SAGA so far: reading the history of the Galaxy with asteroseismology

open access: yesEPJ 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
doaj   +1 more source

Galactic Archaeology using the stellar vertical structure of galactic discs [PDF]

open access: yes, 2022
The vertical distribution of stars within galactic discs is intrinsically connected to the evolution of the host galaxy: from the creation of galactic components such as the thin and thick disc to many disc features, like flaring, age gradients, or warps.
openaire   +1 more source

The Milky Way Bulge Extra-tidal Star Survey: BH 261 (AL 3)

open access: yesThe Astronomical Journal, 2023
The Milky Way Bulge extra-tidal star survey is a spectroscopic survey with the goal of identifying stripped globular cluster stars from inner Galaxy clusters.
Andrea Kunder   +21 more
doaj   +1 more source

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