Results 1 to 10 of about 13,860 (288)
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
exaly +7 more sources
Metallicity bias in the kinematics of the Milky Way stellar halo [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 Accepted for publication in MNRAS (2013 January 14)
Prajwal R Kafle +2 more
exaly +5 more sources
The kinematic properties of Milky Way stellar halo populations [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT In the Gaia era, stellar kinematics are extensively used to study Galactic halo stellar populations, to search for halo structures, and to characterize the interface between the halo and hot disc populations. We use distribution function-based models of modern data sets with 6D phase space data to qualitatively describe a ...
James M M Lane, Jo Bovy, J Ted Mackereth
openaire +4 more sources
The cold veil of the Milky Way stellar halo [PDF]
Monthly Notices of the Royal Astronomical Society, 2012 49
Deason, A.J. +9 more
semanticscholar +11 more sources
Reflex motion in the Milky Way stellar halo resulting from the Large Magellanic Cloud infall [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2020 We present the results of N-body models of the Milky Way and Large Magellanic Cloud system and study the kinematic reflex motion in the stellar halo owing to the barycentre displacement of the disc.
Michael S Petersen +2 more
exaly +2 more sources
Evidence for two early accretion events that built the Milky Way stellar halo [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 The 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
G C Myeong +2 more
exaly +2 more sources
Mapping the milky way’s stellar halo with 2D data [PDF]
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT We propose a new method for measuring the spatial density distribution of the stellar halo of the Milky Way. Our method is based on a pairwise statistic of the distribution of stars in the sky, the angular two-point correlation function (ATPCF). The ATPCF utilizes two-dimensional data of stars only and is therefore immune to the
Yougang Wang, Yan Gong, Richard J Long
exaly +4 more sources
CHEMICAL INHOMOGENEITIES IN THE MILKY WAY STELLAR HALO [PDF]
The Astronomical Journal, 2008 Accepted for publication in AJ.
I. Roederer
openaire +4 more sources
The merger that led to the formation of the Milky Way’s inner stellar halo and thick disk [PDF]
Nature, 2018 The assembly of our Galaxy can be reconstructed using the motions and chemistry of individual stars1,2. Chemo-dynamical studies of the stellar halo near the Sun have indicated the presence of multiple components3, such as streams4 and clumps5, as well as
Amina Helmi +2 more
exaly +2 more sources
The Milky Way stellar halo out to 40 kpc: squashed, broken but smooth [PDF]
Monthly Notices of the Royal Astronomical Society, 2011 We introduce a new maximum-likelihood method to model the density profile of blue horizontal branch and blue straggler stars and apply it to the Sloan Digital Sky Survey Data Release 8 photometric catalogue.
Alis J Deason +2 more
exaly +2 more sources