Results 31 to 40 of about 13,860 (288)
The Astrophysical Journal, 2023 We study satellite counts and quenched fractions for satellites of Milky Way analogs in Romulus25 , a large-volume cosmological hydrodynamic simulation.
Jordan Van Nest +5 more
doaj +1 more source
The 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 HERCULES SATELLITE: A STELLAR STREAM IN THE MILKY WAY HALO? [PDF]
The Astrophysical Journal, 2010 8 pages, 4 figures, accepted for publication in ...
Martin, Nicolas F., Jin, Shoko
openaire +3 more sources
The progenitor galaxies of stellar haloes as ‘failed’ Milky Ways
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT The stellar halo of the Milky Way records the history of its interactions with dwarf galaxies, whose subsequent destruction results in the formation of an extended stellar component. Recent works have suggested that galaxies with masses comparable to the Large Magellanic Cloud (LMC, $M_\star \sim 10^9$ M☉) may be the primary ...
Sownak Bose, Alis J Deason
openaire +3 more sources
The first all-sky view of the Milky Way stellar halo with Gaia+2MASS RR Lyrae [PDF]
, 2017 We exploit the first Gaia data release to study the properties of the Galactic stellar halo as traced by RR Lyrae. We demonstrate that it is possible to select a pure sample of RR Lyrae using only photometric information available in the Gaia+2MASS ...
G. Iorio +5 more
semanticscholar +1 more source
CHEMICAL EVOLUTION IN HIERARCHICAL MODELS OF COSMIC STRUCTURE. II. THE FORMATION OF THE MILKY WAY STELLAR HALO AND THE DISTRIBUTION OF THE OLDEST STARS [PDF]
, 2009 This paper presents theoretical star formation and chemical enrichment histories for the stellar halo of the Milky Way (MW) based on new chemodynamical modeling. The goal of this study is to assess the extent to which metal-poor stars in the halo reflect
J. Tumlinson
semanticscholar +1 more source
QUANTIFYING KINEMATIC SUBSTRUCTURE IN THE MILKY WAY'S STELLAR HALO [PDF]
The Astrophysical Journal, 2011 We present and analyze the positions, distances, and radial velocities for over 4000 blue horizontal-branch (BHB) stars in the Milky Way's halo, drawn from SDSS DR8. We search for position-velocity substructure in these data, a signature of the hierarchical assembly of the stellar halo.
Xue, Xiang-Xiang +15 more
openaire +5 more sources
Distant Echoes of the Milky Way’s Last Major Merger
The 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
Structure of the Milky Way stellar halo out to its outer boundary with blue horizontal-branch stars [PDF]
Nippon Tenmon Gakkai obun kenkyu hokoku, 2017 We present the structure of the Milky Way stellar halo beyond Galactocentric distances of $r = 50$ kpc traced by blue horizontal-branch (BHB) stars, which are extracted from the survey data in the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP).
T. Fukushima +8 more
semanticscholar +1 more source
CHARACTERIZING THE CHEMISTRY OF THE MILKY WAY STELLAR HALO: DETAILED CHEMICAL ANALYSIS OF A METAL-POOR STELLAR STREAM, [PDF]
, 2010 We present the results of a detailed abundance analysis of one of the confirmed building blocks of the Milky Way stellar halo, a kinematically coherent metal-poor stellar stream.
I. Roederer +4 more
semanticscholar +1 more source