Results 21 to 30 of about 5,023,389 (339)
Chemodynamical Analysis of Metal-rich High-eccentricity Stars in the Milky Way's Disk
The Astrophysical Journal, 2023 We present a chemodynamical analysis of 11,562 metal-rich, high-eccentricity halo-like main-sequence stars, which have been referred to as the Splash or Splashed Disk, selected from the Sloan Digital Sky Survey and Large Sky Area Multi-Object Fiber ...
Ayeon Lee +4 more
doaj +1 more source
Searching for Milky Way twins: Radial abundance distribution as a strict criterion [PDF]
A&A 676, A57 (2023), 2023 We search for Milky Way-like galaxies among a sample of approximately 500 galaxies. The characteristics we considered of the candidate galaxies are the following: stellar mass M_star, optical radius R_25, rotation velocity V_rot, central oxygen abundance (O/H)_0, and abundance at the optical radius (O/H)_R25.
arxiv +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 Astronomical Journal, 2023 We investigate the kinematic-chemical distribution of red-giant branch stars from the LAMOST survey crossed matched with Gaia DR2 proper motions, and present time tagging for the well-known ridge structures (diagonal distributions for V _R in the R , V ...
Peng Yang +4 more
doaj +1 more source
Modelling the chemical evolution of the Milky Way [PDF]
The Astronomy and Astrophysics Review, 2021 In this review, I will discuss the comparison between model results and observational data for the Milky Way, the predictive power of such models as well as their limits.
F. Matteucci
semanticscholar +1 more source
Star Formation in the Milky Way and Nearby Galaxies [PDF]
, 2012 We review progress over the past decade in observations of large-scale star formation, with a focus on the interface between extragalactic and Galactic studies.
R. Kennicutt, N. Evans
semanticscholar +1 more source
Milky Way Cepheid Standards for Measuring Cosmic Distances and Application to Gaia DR2: Implications for the Hubble Constant [PDF]
Astrophysical Journal, 2018 We present Hubble Space Telescope (HST) photometry of a selected sample of 50 long-period, low-extinction Milky Way Cepheids measured on the same WFC3 F555W-, F814W-, and F160W-band photometric system as extragalactic Cepheids in Type Ia supernova host ...
A. Riess +14 more
semanticscholar +1 more source
Building an Acceleration Ladder with Tidal Streams and Pulsar Timing
The Astrophysical Journal Letters, 2023 We analyse stellar streams in action-angle coordinates combined with recent local direct acceleration measurements to provide joint constraints on the potential of our galaxy.
Peter Craig +3 more
doaj +1 more source
A Gaia DR2 view of the open cluster population in the Milky Way [PDF]
Astronomy & Astrophysics, 2018 Context. Open clusters are convenient probes of the structure and history of the Galactic disk. They are also fundamental to stellar evolution studies.
T. Cantat-Gaudin +12 more
semanticscholar +1 more source
Streams, Substructures, and the Early History of the Milky Way [PDF]
Annual Review of Astronomy and Astrophysics, 2020 The advent of the second data release of the Gaia mission, in combination with data from large spectroscopic surveys, is revolutionizing our understanding of the Galaxy. Thanks to these transformational data sets and the knowledge accumulated thus far, a
A. Helmi
semanticscholar +1 more source