Results 1 to 10 of about 700 (297)
Evidence for two early accretion events that built the Milky Way stellar halo [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 AbstractThe Gaia Sausage is the major accretion event that built the stellar halo of the Milky Way galaxy. Here, we provide dynamical and chemical evidence for a second substantial accretion episode, distinct from the Gaia Sausage. The Sequoia Event provided the bulk of the high-energy retrograde stars in the stellar halo, as well as the recently ...
GyuChul Myeong +2 more
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The cold veil of the Milky Way stellar halo [PDF]
Monthly Notices of the Royal Astronomical Society, 2012 49
Alis J. Deason +9 more
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BROKEN AND UNBROKEN: THE MILKY WAY AND M31 STELLAR HALOS [PDF]
The Astrophysical Journal, 2013 We use the Bullock & Johnston suite of simulations to study the density profiles of L*-type galaxy stellar haloes. Observations of the Milky Way and M31 stellar haloes show contrasting results: the Milky Way has a `broken' profile, where the density falls off more rapidly beyond ~ 25 kpc, while M31 has a smooth profile out to 100 kpc with no ...
Alis J. Deason +3 more
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The stellar halo in the inner Milky Way: predicted shape and kinematics [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2016 Abstract We have used N-body simulations for the Milky Way to investigate the kinematic and structural properties of the old metal-poor stellar halo in the barred inner region of the Galaxy. We find that the extrapolation of the density distribution for bulge RR Lyrae stars, ρ ∼ r−3, approximately matches the number density of RR Lyrae ...
Ángeles Pérez-Villegas +2 more
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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
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Rotational signature of the Milky Way stellar halo [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 accepted for publication in MNRAS 20 pages, 14 ...
Francesco Fermani, Ralph Schönrich
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ELVES IV: The Satellite Stellar-to-Halo Mass Relation Beyond the Milky-Way [PDF]
The Astrophysical Journal, 2022 Abstract Quantifying the connection between galaxies and their host dark matter halos has been key for testing cosmological models on various scales. Below M ⋆ ∼ 109 M ⊙, such studies have primarily relied on the satellite galaxy population orbiting the Milky Way (MW). Here we present
Shany Danieli +5 more
openalex +4 more sources
Group accretion in Milky Way-like stellar haloes
Astronomy & AstrophysicsAs galaxies form hierarchically, larger satellites can accrete alongside smaller companions in group infall events. This coordinated accretion is likely to have left signatures in the Milky Way's stellar halo that we can see today. Our goal is to characterise the possible groups of companions that accompanied larger known accretion events of our Galaxy,
Thomas M. Callingham, A. Helmi
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Stellar halos in Illustris: probing the histories of Milky Way-mass galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 13 pages, 12 ...
Lydia M Elias +6 more
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The Hercules Satellite: A Stellar Stream in the Milky Way Halo? [PDF]
The Astrophysical Journal, 2011 8 pages, 4 figures, accepted for publication in ...
Shoko Jin, Nicolas F. Martin
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