Results 101 to 110 of about 92,502 (190)

Disk Heating, Galactoseismology, and the Formation of Stellar Halos

open access: yesGalaxies, 2017
Deep photometric surveys of the Milky Way have revealed diffuse structures encircling our Galaxy far beyond the “classical” limits of the stellar disk. This paper reviews results from our own and other observational programs, which together suggest that,
Kathryn V. Johnston   +9 more
doaj   +1 more source

Disk Assembly of the Milky Way Suggested from the Time-resolved Chemical Abundance

open access: yesThe Astrophysical Journal
Both simulations and observations suggest that the disk assembly of galaxies is governed by the interplay between coplanar gas inflow, ex-planar gas outflow, and in situ star formation on the disk, known as the leaky accretion disk.
Enci Wang   +3 more
doaj   +1 more source

ALMAGAL. VII. Cataloging Hierarchical Continuum Structure from Cores to Clumps across the Galactic Disk

open access: yesThe Astrophysical Journal
Investigating the multiscale fragmentation of dense clumps into compact cores is essential for understanding the processes that govern the initial distribution of mass in stellar clusters and how high-mass stars (>8 M _⊙ ) form.
Jennifer Wallace   +44 more
doaj   +1 more source

The Star Formation History of the Milky Way

open access: yes, 2000
10pp, to appear in Disk galaxies and galaxy disks, eds J G Funes and E M corsini ASP Conf ser in ...
openaire   +2 more sources

The APO-K2 Catalog. II. Accurate Stellar Ages for Red Giant Branch Stars across the Milky Way

open access: yesThe Astronomical Journal
We present stellar age determinations for 4661 red giant branch stars in the APO-K2 catalog, derived using mass estimates from K2 asteroseismology from the K2 Galactic Archaeology Program and elemental abundances from the Apache Point Galactic Evolution ...
Jack T. Warfield   +13 more
doaj   +1 more source

Star formation in the central 0.5 pc of the Milky Way

open access: yesJournal of Physics: Conference Series, 2008
The supermassive black hole candidate at the Galactic Center is surrounded by a parsec-scale star cluster, which contains a number of early type stars. The presence of such stars has been called a "paradox of youth" as star formation in the immediate vicinity of a supermassive black hole seemed difficult, as well as the transport of stars from far out ...
openaire   +3 more sources

Masses, luminosities and dynamics of galactic molecular clouds [PDF]

open access: yes
Star formation in galaxies takes place in molecular clouds and the Milky Way is the only galaxy in which it is possible to resolve and study the physical properties and star formation activity of individual clouds. The masses, luminosities, dynamics, and
Barrett, J. W.   +4 more
core   +1 more source

The formation and survival of the Milky Way’s oldest stellar disk

open access: yesNature Astronomy
Published in Nature Astronomy on 10 October, 2024; This manuscript is the accepted ...
Maosheng Xiang   +5 more
openaire   +2 more sources

Molecular Gas Morphological Analogs for the Milky Way

open access: yesThe Astrophysical Journal Letters
Complete catalogs of molecular clouds in the Milky Way allow analysis of the molecular medium and the star formation properties of the Milky Way that closely follows the method used for nearby galaxies.
Neal J. Evans II   +4 more
doaj   +1 more source

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