Results 1 to 10 of about 8,268 (206)
Constraining the formation of the Milky Way: Ages [PDF]
EPJ Web of Conferences, 2013 We present a new approach for studying the chemodynamical evolution of the Milky Way, which combines a thin disk chemical evolution model with the dynamics from N-body simulation of a galaxy with properties similar to those of our Galaxy.
Martig M., Minchev I., Chiappini C.
doaj +2 more sources
Formation and Evolution of the Milky Way [PDF]
Symposium - International Astronomical Union, 1998 To paint with broad brush strokes, the spectrum of Galactic formation models has as extrema what may be termed the “fast and smooth” and the “slow and lumpy” scenarios. Appropriate or not, to ascribe as champions of these views the works of, respectively, Eggen et al.
Steven R. Majewski
openalex +2 more sources
The Rapid Formation of the Metal-poor Milky Way
The Astrophysical JournalOur understanding of the assembly timeline of the Milky Way has been transforming along with the dramatic increase in astrometric and spectroscopic data available over the past several years.
Turner Woody +8 more
doaj +3 more sources
Bar Formation in Milky Way type Galaxies
Open Astronomy, 2016 Many barred galaxies, possibly including the Milky Way, have cusps in their centers. There is a widespread belief, however, that the usual bar instability, which occurs in bulgeless galaxy models, is impossible for cuspy models because of the presence of
Polyachenko E. V., Berczik P., Just A.
doaj +2 more sources
A NEW FORMATION SCENARIO FOR THE MILKY WAY CLUSTER NGC 2419 [PDF]
The Astrophysical Journal, 2011 35 pages, 13 figures, accepted for publication in ...
R. C. Brüns, Pavel Kroupa
openalex +4 more sources
, 2007 This thesis work has focused on the Galactic disk kinematics to put some constraints on the scenarios of the thin and thick disk formation. It takes part of the RAVE project which has the goal to spectrocpically measure the radial velocities and the stellar parameters of one million stars in the South celestial hemisphere.
Lionel Veltz +2 more
openalex +3 more sources
Gas and Star Formation in Satellites of Milky Way Analogs
The Astrophysical JournalWe have imaged the entirety of eight (plus one partial) Milky Way (MW)–like satellite systems, a total of 42 (45) satellites, from the Satellites Around Galactic Analogs II catalog in both H α and H i with the Canada–France–Hawaii Telescope and the ...
Michael G. Jones +11 more
doaj +4 more sources
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
The Astrophysical Journal, 2023 We have for the first time identified the early stellar disk in the Milky Way by using a combination of elemental abundances and kinematics. Using data from APOGEE DR17 and Gaia we select stars in the Mg–Mn–Al–Fe plane with elemental abundances ...
Sofia Feltzing, Diane Feuillet
doaj +1 more source
Dust formation in Milky Way-like galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 We introduce a dust model for cosmological simulations implemented in the moving-mesh code AREPO and present a suite of cosmological hydrodynamical zoom-in simulations to study dust formation within galactic haloes. Our model accounts for the stellar production of dust, accretion of gas-phase metals onto existing grains, destruction of dust through ...
McKinnon, Ryan +4 more
openaire +4 more sources