Results 21 to 30 of about 5,566,689 (217)

Distant Echoes of the Milky Way’s Last Major Merger

open access: yesThe Astrophysical Journal, 2023
The majority of the Milky Way’s stellar halo consists of debris from our galaxy’s last major merger, the Gaia-Sausage-Enceladus (GSE). In the past few years, stars from the GSE have been kinematically and chemically studied in the inner 30 kpc of our ...
Vedant Chandra   +11 more
doaj   +1 more source

The Metal-weak Milky Way Stellar Disk Hidden in the Gaia–Sausage–Enceladus Debris: The APOGEE DR17 View

open access: yesThe Astrophysical Journal, 2023
We have for the first time identified the early stellar disk in the Milky Way by using a combination of elemental abundances and kinematics. Using data from APOGEE DR17 and Gaia we select stars in the Mg–Mn–Al–Fe plane with elemental abundances ...
Sofia Feltzing, Diane Feuillet
doaj   +1 more source

The Mass of the Milky Way Galaxy [PDF]

open access: yes, 2023
On the Basis of tabular values of the gravitational constant. The calculated mass of the nucleus of the milky way galaxy. The numerical value of the gravitational constant is determined by the mass of the nucleus of the milky way galaxy.
Shavkyatovich, Yanbikov Vildan
core  

Two-point Correlation Function Studies for the Milky Way: Discovery of Spatial Clustering from Disk Excitations and Substructure

open access: yesThe Astrophysical Journal, 2023
We introduce a two-particle correlation function (2PCF) for the Milky Way, constructed to probe spatial correlations in the orthogonal directions of the stellar disk in the Galactic cylindrical coordinates of R , ϕ , and z . We use this new tool to probe
Austin Hinkel   +2 more
doaj   +1 more source

Chemodynamical Analysis of Metal-rich High-eccentricity Stars in the Milky Way's Disk

open access: yesThe Astrophysical Journal, 2023
We present a chemodynamical analysis of 11,562 metal-rich, high-eccentricity halo-like main-sequence stars, which have been referred to as the Splash or Splashed Disk, selected from the Sloan Digital Sky Survey and Large Sky Area Multi-Object Fiber ...
Ayeon Lee   +4 more
doaj   +1 more source

CHEMODYNAMICAL SIMULATIONS OF THE MILKY WAY GALAXY [PDF]

open access: yesThe Astrophysical Journal, 2011
43 pages, 20 figures, accepted to ...
Kobayashi, Chiaki, Nakasato, Naohito
openaire   +3 more sources

Modelling the Milky Way as a dry Galaxy [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2018
We construct a model for the Milky Way Galaxy composed of a stellar disc and bulge embedded in a dark-matter halo. All components are modelled as $N$-body systems with up to 8 billion equal-mass particles and integrated up to an age of 10\,Gyr. We find that net angular-momentum of the dark-matter halo with a spin parameter of $λ=0.06$ is required to ...
Fujii, M.S.   +3 more
openaire   +3 more sources

STEALTH GALAXIES IN THE HALO OF THE MILKY WAY [PDF]

open access: yesThe Astrophysical Journal, 2010
We predict that there is a population of low-luminosity dwarf galaxies orbiting within the halo of the Milky Way that have surface brightnesses low enough to have escaped detection in star-count surveys. The overall count of stealth galaxies is sensitive to the presence (or lack) of a low-mass threshold in galaxy formation.
Bullock, James S.   +4 more
openaire   +2 more sources

A Blueprint for the Milky Way’s Stellar Populations. IV. A String of Pearls—the Galactic Starburst Sequence

open access: yesThe Astrophysical Journal, 2023
We continue our series of papers on phase-space distributions of stars in the Milky Way based on photometrically derived metallicities and Gaia astrometry, with a focus on the halo−disk interface in the local volume.
Deokkeun An   +3 more
doaj   +1 more source

The Milky Way - Our Home in the Universe

open access: yes, 2018
Aakasha Ganga, Via Lactea or the Milky Way is our home in the Universe. The discovery of the telescope by Galileo Galilei had facilitated the sky watchers to notice a variety of geometrical forms in the sky.
Divakara Mayya
core   +1 more source

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