Results 11 to 20 of about 700 (297)
Progenitor Diversity in the Accreted Stellar Halos of Milky Way–like Galaxies
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
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Constraining the Milky Way halo potential with the GD-1 stellar stream [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 Abstract We use ESA/Gaia astrometry together with SEGUE and LAMOST measurements of the GD-1 stellar stream to explore the improvement on the Galactic gravitational potential that these new data provide. Assuming a realistic universal model for the dark matter halo together with reasonable models of the baryonic components, we find that ...
Khyati Malhan, Rodrigo Ibata
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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
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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 +3 more
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The stability of stellar discs in Milky Way-sized dark matter haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 22 pages, 23 figures, 1 tables. Accepted for publication in MNRAS.
Denis Yurin, Volker Springel
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Dynamics of stellar and HI streams in the Milky Way halo [PDF]
EPJ Web of Conferences, 2012 Stellar streams are key players in many aspects of Milky Way studies and, in particular, studying their orbital dynamics is crucial for furthering our understanding of the Milky Wayʼs gravitational potential.
Jin S.
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Characterizing the formation history of Milky Way-like stellar haloes with model emulators [PDF]
The Astrophysical Journal, 2012 Accepted for publication in ApJ; 18 pages, 12 ...
Facundo A. Gómez +4 more
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The Astrophysical JournalWe present the design for HALO7D-X, a survey of the stellar halo to investigate the accretion history of the Milky Way. The survey will use a combination of Hubble Space Telescope (HST) and Gaia data for sky position and proper motions of faint stars (18
Miranda Apfel +4 more
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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
Anda Chen +5 more
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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
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