Results 11 to 20 of about 81,755 (239)
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
, 2015 This review summarises the invited presentation I gave on the Milky Way disc. The idea underneath was to touch those topics that can be considered hot nowadays in the Galactic disk research: the reality of the thick disk, the spiral structure of the ...
Carraro, Giovanni
core +3 more sources
Using classical Cepheids to study the far side of the Milky Way disk [PDF]
Astronomy & Astrophysics, 2020 Context. Much of what we know about the Milky Way disk is based on studies of the solar vicinity. The structure, kinematics, and chemical composition of the far side of the Galactic disk, beyond the bulge, are still to be revealed. Aims.
J. H. Minniti +11 more
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Substructure depletion in the Milky Way halo by the disk [PDF]
The Astrophysical Journal, 2009 We employ numerical simulations and simple analytical estimates to argue that dark matter substructures orbiting in the inner regions of the Galaxy can be efficiently destroyed by disk shocking, a dynamical process known to affect globular star clusters.
Abadi +34 more
core +5 more sources
PHYSICAL PROPERTIES OF MOLECULAR CLOUDS FOR THE ENTIRE MILKY WAY DISK [PDF]
, 2016 This study presents a catalog of 8107 molecular clouds that covers the entire Galactic plane and includes 98% of the 12CO emission observed within . The catalog was produced using a hierarchical cluster identification method applied to the result of a ...
M.-A. Miville-Deschênes +2 more
openalex +3 more sources
Riding the kinematic waves in the Milky Way disk with Gaia [PDF]
Astronomy & Astrophysics, 2018 Context. Gaia DR2 has delivered full-sky six-dimensional measurements for millions of stars, and the quest to understand the dynamics of our Galaxy has entered a new phase. Aims.
P. Ramos, T. Antoja, F. Figueras
semanticscholar +5 more sources
HII Region Metallicity Distribution in the Milky Way Disk [PDF]
, 2011 The distribution of metals in the Galaxy provides important information about galaxy formation and evolution. HII regions are the most luminous objects in the Milky Way at mid-infrared to radio wavelengths and can be seen across the entire Galactic disk.
Afflerbach +82 more
core +2 more sources
The age structure of stellar populations in the solar vicinity. Clues of a two-phase formation history of the Milky Way disk [PDF]
, 2013 We analyze a sample of solar neighborhood stars that have high-quality abundance determinations and show that there are two distinct regimes of [α/Fe] versus age, which we identify as the epochs of the thick and thin disk formation.
M. Haywood +4 more
openalex +3 more sources
Milky Way versus Andromeda: a tale of two disks [PDF]
Astronomy & Astrophysics, 2009 13 Pages, 7 figures, 2 tables, accepted for publication in Astronomy and ...
Jun Yin +6 more
openalex +4 more sources
AZIMUTHAL METALLICITY STRUCTURE IN THE MILKY WAY DISK [PDF]
The Astrophysical Journal, 2015 Elemental abundance patterns in the Galactic disk constrain theories of the formation and evolution of the Milky Way. H ii region abundances are the result of billions of years of chemical evolution.
D. Balser +4 more
semanticscholar +5 more sources