Results 21 to 30 of about 5,332 (183)

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

Galactic Archaeology with CoRoT and APOGEE: Creating mock observations from a chemodynamical model [PDF]

open access: yes, 2016
In a companion paper, we have presented the combined asteroseismic-spectroscopic dataset obtained from CoRoT lightcurves and APOGEE infra-red spectra for 678 solar-like oscillating red giants in two fields of the Galactic disc (CoRoGEE). We have measured
Anders, F.   +10 more
core   +4 more sources

Archaeology of active galaxies across the electromagnetic spectrum [PDF]

open access: yes, 2017
Analytical and numerical galaxy-formation models indicate that active galactic nuclei (AGNs) likely play a prominent role in the formation and evolution of galaxies. However, quantifying this effect requires knowledge of how the nuclear activity proceeds
Morganti, Raffaella
core   +2 more sources

Measuring 14 elemental abundances with R=1,800 LAMOST spectra [PDF]

open access: yes, 2017
The LAMOST survey has acquired low-resolution spectra (R=1,800) for 5 million stars across the Milky Way, far more than any current stellar survey at a corresponding or higher spectral resolution.
Conroy, Charlie   +4 more
core   +3 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

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

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 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

Determining Ages of APOGEE Giants with Known Distances [PDF]

open access: yes, 2015
We present a sample of local red giant stars observed using the New Mexico State University 1 m telescope with the APOGEE spectrograph, for which we estimate stellar ages and the age distribution from the high-resolution spectroscopic stellar parameters ...
Bovy, Jo   +6 more
core   +2 more sources

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

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