Results 1 to 10 of about 30,171 (324)
Mapping the Milky Way with LAMOST – II. The stellar halo [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 The radial number density and flattening of the Milky Way's stellar halo is measured with $\mathrm{5351}$ metal-poor ([Fe/H]$
Yan Xu +11 more
core +5 more sources
CHEMICAL INHOMOGENEITIES IN THE MILKY WAY STELLAR HALO [PDF]
The Astronomical Journal, 2008 Accepted for publication in AJ.
Ian U. Roederer
core +7 more sources
Progenitor Diversity in the Accreted Stellar Halos of Milky Way–like Galaxies [PDF]
The Astrophysical JournalOngoing large stellar spectroscopic surveys of the Milky Way seek to reconstruct the major events in the assembly history of the Galaxy. Chemical and kinematic observations can be used to separate the contributions of different progenitor galaxies to the
Sy-Yun Pu +4 more
doaj +5 more sources
The total stellar halo mass of the Milky Way [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 ABSTRACT We measure the total stellar halo luminosity using red giant branch (RGB) stars selected from Gaia data release 2. Using slices in magnitude, colour, and location on the sky, we decompose RGB stars belonging to the disc and halo by fitting two-dimensional Gaussians to the Galactic proper motion distributions.
Alis J. Deason +2 more
openalex +7 more sources
Stellar Over-Densities in the Outer Halo of the Milky Way [PDF]
Publications of the Astronomical Society of Australia, 2010 AbstractThis study presents a tomographic survey of a subset of the outer halo (10–40 kpc) drawn from the Sloan Digital Sky Survey Data Release 6. Halo substructure on spatial scales of >3 degrees is revealed as an excess in the local density of sub-giant stars.
Stefan Keller
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The
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT We introduce the Assembly of high-ResoluTion Eagle-simulations of MIlky Way-type galaxieS (artemis) simulations, a new set of 42 zoomed-in, high-resolution (baryon particle mass of $\approx 2\times 10^4 \, {\rm M}_{\odot }\, h^{-1}$), hydrodynamical simulations of galaxies residing in haloes of Milky Way mass, simulated with the
Andreea S. Font +8 more
openalex +7 more sources
Two stellar components in the halo of the Milky Way [PDF]
Nature, 2007 Two stand-alone files in manuscript, concatenated together. The first is for the main paper, the second for supplementary information.
Daniela Carollo +2 more
exaly +6 more sources
The Hercules Satellite: A Stellar Stream in the Milky Way Halo? [PDF]
The Astrophysical Journal, 2011 Conference proceedings of "A Universe of dwarf galaxies: Observations, Theories, Simulations" held in Lyon, France (June 14-18, 2010)
Shoko Jin, Nicolas F. Martin
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Discovery of a New Stellar Subpopulation Residing in the (Inner) Stellar Halo of the Milky Way [PDF]
The Astrophysical Journal Letters, 2019 Abstract We report the discovery of a unique collection of metal-poor giant stars that exhibit anomalously high levels of 28Si, clearly above typical Galactic levels. Our sample spans a narrow range of metallicities, peaking at −1.07 ± 0.06, and exhibits abundance ratios of [Si, Al/Fe] that are as extreme as those observed in Galactic ...
José G. Fernández-Trincado +10 more
openalex +7 more sources
The dual nature of the Milky Way stellar halo [PDF]
Proceedings of the International Astronomical Union, 2010 AbstractThe theory of the Milky Way formation, in the framework of the ΛCDM model, predicts galactic stellar halos to be built from multiple accretion events starting from the first structure to collapse in the Universe.Evidences in the past few decades have indicated that the Galactic halo consists of two overlapping structural components, an inner ...
A. Curir +3 more
openalex +2 more sources