THE MILKY WAY HAS NO DISTINCT THICK DISK [PDF]
The Astrophysical Journal, 2012 Different stellar sub-populations of the Milky Way's stellar disk are known to have different vertical scale heights, their thickness increasing with age. Using SEGUE spectroscopic survey data, we have recently shown that mono-abundance sub-populations, defined in the [ /Fe]-[Fe/H] space, are well described by single exponential spatial-density ...
Jo Bovy +2 more
openalex +4 more sources
The thick disk rotation-metallicity correlation as a fossil of an "inverse chemical gradient" in the early Galaxy [PDF]
, 2012 The thick disk rotation--metallicity correlation, \partial V_\phi/\partial[Fe/H] =40\div 50 km s^{-1}dex^{-1} represents an important signature of the formation processes of the galactic disk.
A. Curir +49 more
core +2 more sources
StarHorse results for spectroscopic surveys and Gaia DR3: Chrono-chemical populations in the solar vicinity, the genuine thick disk, and young alpha-rich stars [PDF]
Astronomy & Astrophysics, 2023 The Gaia mission has provided an invaluable wealth of astrometric data for more than a billion stars in our Galaxy. The synergy between Gaia astrometry, photometry, and spectroscopic surveys give us comprehensive information about the Milky Way.
A. Queiroz +18 more
semanticscholar +1 more source
Milky Way Thin and Thick Disk Kinematics with Gaia EDR3 and RAVE DR5 [PDF]
Astrophysical Journal, 2022 We present a detailed analysis of kinematics of the Milky Way disk in the solar neighborhood using the Gaia DR3 catalog. To determine the local kinematics of the stellar disks of the Milky Way we use a complete sample of 278,228 red giant branch (RGB ...
K. Vieira +5 more
semanticscholar +1 more source
A large sub-Neptune transiting the thick-disk M4V TOI-2406 [PDF]
, 2021 Large sub-Neptunes are uncommon around the coolest stars in the Galaxy and are rarer still around those that are metal-poor. However, owing to the large planet-to-star radius ratio, these planets are highly suitable for atmospheric study via transmission
R. Wells +73 more
semanticscholar +1 more source
LHS 1815b: The First Thick-disk Planet Detected by TESS [PDF]
Astronomical Journal, 2020 We report the first discovery of a thick-disk planet, LHS 1815b (TOI-704b, TIC 260004324), detected in the Transiting Exoplanet Survey Satellite (TESS) survey.
T. Gan +37 more
semanticscholar +1 more source
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
A. Helmi +5 more
semanticscholar +1 more source
ON THE FORMATION OF GALACTIC THICK DISKS [PDF]
The Astrophysical Journal, 2015 5 pages, 2 figures, Accepted for publication in ApJ ...
I. Minchev +5 more
openaire +3 more sources
Disk origin of the Milky Way bulge: the necessity of the thick disk [PDF]
Astronomy & Astrophysics, 2019 In the Milky Way bulge, metal-rich stars form a strong bar and are more peanut-shaped than metal-poor stars. It has recently been claimed that this behavior is driven by the initial (i.e., before bar formation) in-plane radial velocity dispersion of ...
P. Matteo +6 more
semanticscholar +1 more source
Vertical Density Distribution of the Galaxy from Star Count Analysis [PDF]
Journal of Astronomy and Space Sciences, 2002 The five space density distribution D(z) with distance perpendicular to the Galactic plane were combined. The scale heights and the local densities at z = 0 of the thin disk, thick disk, and the halo components were estimated from the nonlinear least ...
Young-Jong Sohn
doaj +1 more source