The Gaia inertial reference frame and the tilting of the Milky Way disk [PDF]
, 2014 While the precise relationship between the Milky Way disk and the symmetry planes of the dark matter halo remains somewhat uncertain, a time-varying disk orientation with respect to an inertial reference frame seems probable.
Lindegren, Lennart +2 more
core +2 more sources
Metallicity Structure in the Milky Way Disk Revealed by Galactic H ii Regions [PDF]
Astrophysical Journal, 2019 The metallicity structure of the Milky Way disk stems from the chemodynamical evolutionary history of the Galaxy. We use the National Radio Astronomy Observatory Karl G.
Trey V. Wenger +3 more
openalex +3 more sources
Action-based Dynamical Modeling for the Milky Way Disk: The Influence of Spiral Arms [PDF]
, 2017 We present RoadMapping, a full-likelihood dynamical modeling machinery that aims to recover the Milky Way’s (MW) gravitational potential from large samples of stars in the Galactic disk.
Wilma H Trick +3 more
openalex +3 more sources
Unveiling the time evolution of chemical abundances across the Milky Way disk with APOGEE [PDF]
Monthly notices of the Royal Astronomical Society, 2023 Chemical abundances are an essential tool in untangling the Milky Way’s enrichment history. However, the evolution of the interstellar medium abundance gradient with cosmic time is lost as a result of radial mixing processes.
B. Ratcliffe +14 more
semanticscholar +1 more source
The Homogeneity of the Star-forming Environment of the Milky Way Disk over Time [PDF]
Astrophysical Journal, 2021 Stellar abundances and ages afford the means to link chemical enrichment to galactic formation. In the Milky Way, individual element abundances show tight correlations with age, which vary in slope across ([Fe/H]–[α/Fe]).
M. Ness +6 more
semanticscholar +1 more source
Stellar Abundance Maps of the Milky Way Disk [PDF]
Astrophysical Journal, 2021 To understand the formation of the Milky Way’s prominent bar it is important to know whether stars in the bar differ in the chemical element composition of their birth material as compared to disk stars.
A. Eilers +6 more
semanticscholar +1 more source
Reliability and limitations of inferring birth radii in the Milky Way disk [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2022 Recovering the birth radii of observed stars in the Milky Way is one of the ultimate goals of Galactic Archaeology. One method to infer the birth radius and the evolution of the ISM metallicity assumes a linear relation between the ISM metallicity with
Y. Lu, T. Buck, I. Minchev, M. Ness
semanticscholar +1 more source
Structure in the Magnetic Field of the Milky Way Disk and Halo Traced by Faraday Rotation [PDF]
Astrophysical Journal, 2022 Magnetic fields in the ionized medium of the disk and halo of the Milky Way impose Faraday rotation on linearly polarized radio emission. We compare two surveys mapping the Galactic Faraday rotation, one showing the rotation measures of extragalactic ...
J. Dickey +16 more
semanticscholar +1 more source
Exploring the Sgr–Milky Way–disk Interaction Using High-resolution N-body Simulations [PDF]
Astrophysical Journal, 2021 The ongoing merger of the Sagittarius (Sgr) dwarf galaxy with the Milky Way is believed to strongly affect the dynamics of the Milky Way’s disk. We present a suite of 13 N-body simulations, with 500 million–1 billion particles, modeling the interaction ...
Morgan Bennett +2 more
semanticscholar +1 more source
A Young, Low-density Stellar Stream in the Milky Way Disk: Theia 456 [PDF]
Astronomical Journal, 2021 Our view of the variety of stellar structures pervading the local Milky Way has been transformed by the application of clustering algorithms to the Gaia catalog.
J. Andrews +6 more
semanticscholar +1 more source