Results 101 to 110 of about 9,510 (172)

The Structure, Populations, and Kinematics of the Milky Way Central and Inner Bulge with OGLE, APOGEE, and Gaia Data

The Astrophysical Journal
We present an analysis of the structure, kinematics, and chemo-dynamical properties of the Milky Way bulge using RR Lyrae stars from Optical Gravitational Lensing Experiment (OGLE), and giant stars from APOGEE and Gaia that have distances placing them in
Xiao Han, Hai-Feng Wang, Giovanni Carraro, Martín López-Corredoira, Yuan-Sen Ting, Yang-Ping Luo, Guan-Yu Wang, (MWLUDPSG Collaboration)   +7 more
doaj   +1 more source

A Wave-corrected Assessment of the Local Midplane

The Astrophysical Journal
As the number of known Galactic structures mounts thanks to the Gaia Space Telescope, it is now pertinent to study methods for disentangling structures occupying the same regions of the Milky Way. Indeed, understanding the precise form of each individual
Ziyuan Yin, Austin Hinkel
doaj   +1 more source

Phase Spirals across Galactic Disks. I. Exploring Dynamical Influences on Winding

The Astrophysical Journal
The vertical phase-space spirals in the Milky Way are clear evidence of disequilibrium. However, they are challenging to study because phase mixing signals evolve under the influence of many different dynamical processes and can be driven by many sources
Kiyan Tavangar, Kathryn V. Johnston, Jason A. S. Hunt, Axel Widmark, Chris Hamilton, Michael S. Petersen, Martin D. Weinberg   +6 more
doaj   +1 more source

Differential Accretion of Ionized Low-velocity Gas at the Milky Way’s Disk–Halo Interface

The Astrophysical Journal
We measure line-of-sight velocities of metal absorption and H I emission along 132 QSO sight lines in order to study gas accretion and outflow at the disk–halo interface of the Milky Way.
Hannah V. Bish, Jessica K. Werk, J.E.G. Peek, Enrico Di Teodoro, Yong Zheng, Mary Putman   +5 more
doaj   +1 more source

The Rapid Formation of the Metal-poor Milky Way

The Astrophysical Journal
Our 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, Charlie Conroy, Phillip Cargile, Ana Bonaca, Vedant Chandra, Jiwon Jesse Han, Benjamin D. Johnson, Rohan P. Naidu, Yuan-Sen Ting   +8 more
doaj   +1 more source

The Mass of the Milky Way Galaxy

, 1995
31 pages, uuencoded compressed postscript without figures, complete file including figures available at ftp://cfa0.harvard.edu/outgoing/kochanek/milkyway.ps.Z (0.5 MByte, compressed), submitted to ...
openaire   +2 more sources

Fundamental parameters of the Milky Way galaxy [PDF]

Master of ScienceDepartment of PhysicsBharat RatraOver three-quarters of observed galaxies are spiral galaxies, and of those spirals roughly two-thirds are barred.
Camarillo, Tia
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Observational Constraints of Radial Migration in the Galactic Disk Driven by the Slowing Bar

The Astrophysical Journal Letters
Radial migration is an important dynamical effect that has reshaped the Galactic disk, but its origin has yet to be elucidated. In this work, we present evidence that resonant dragging by the corotation of a decelerating bar could be the main driver of ...
HanYuan Zhang, Vasily Belokurov, N. Wyn Evans, Jason L. Sanders, Yuxi(Lucy) Lu, Chengye Cao, GyuChul Myeong, Adam M. Dillamore, Sarah G. Kane, Zhao-Yu Li   +9 more
doaj   +1 more source

The Milky Way Galaxy

This resource covers the nature and components of the Milky Way, including the disk, spiral arms, nucleus, dark matter halo, globular clusters, and central bulge; the interstellar medium, including gas, dust, HI and HII regions, and the distribution of ...

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Multiwavelength Milky Way Educational Poster

, 2000
This poster depicts the Milky Way galaxy at radio, infrared, optical, x-ray, and gamma-ray wavelengths. Captions describe the Milky Way and what can be learned about the galaxy from measurements made in each segment of the electromagnetic spectrum. Note:

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