Results 101 to 110 of about 5,718,483 (217)

Divergent Evolution of Radial Metallicity Gradients in the Thin and Thick Disks of the Milky Way

The Astrophysical Journal Letters
Using 200,388 red clump stars from LAMOST and APOGEE, we investigate the radial metallicity gradients of the Galactic disk as a function of vertical height and stellar age. The thin disk displays a pronounced negative radial metallicity gradient near the
Weixiang Sun, Gaohuan Long, Hui Li, Han Shen, Shu Wang, Xiaodian Chen, Biwei Jiang, Xiaowei Liu, Di Li   +8 more
doaj   +1 more source

Milky Way Antimatter Plume

, 1998
A flyby of the Milky Way galaxy showing an antimatter plume Educational levels: Undergraduate lower division, Undergraduate upper division, Graduate or ...
Alex Kekesi, David Leisawitz, Edgar Russell   +2 more
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Revealing Gas Inflows Toward the Galactic Central Molecular Zone

The Astrophysical Journal Letters
We study the gas inflows toward the Galactic Central Molecular Zone (CMZ) based on the gas morphological and kinematic features from the Milky Way Imaging Scroll Painting in the region of l = 1.°2–19.°0 and ∣ b ∣ ≲ 3.°0.
Yang Su, Shiyu Zhang, Yan Sun, Ji Yang, Qing-Zeng Yan, Shaobo Zhang, Zhiwei Chen, Xuepeng Chen, Xin Zhou, Lixia Yuan   +9 more
doaj   +1 more source

Modeling the Accretion of High-velocity Clouds from a Rotating Halo

The Astrophysical Journal
High-velocity clouds (HVCs) are a major fuel reservoir for star formation in the Galactic disk. Determining their origin and kinematics is thus crucial for understanding Galactic evolution.
Izumi Seno, Shu-ichiro Inutsuka, Jiro Shimoda   +2 more
doaj   +1 more source

What Is the nearest galaxy to the Milky Way?

, 2014
Componente Curricular::Educação Superior::Ciências Exatas e da Terra::AstronomiaBasic knowledge of AstronomyThis video shows which is the closer galaxy to the Milky Way and which are the dangers surrounding this ...
National Aeronautics and Space Administration (NASA), Jet Propulsion Laboratory, California Institute of Technology   +2 more
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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

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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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

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 Early Epochs of the Milky Way Galaxy

The Early Epochs of the Milky Way Galaxy. By determining the chemical compositions and space velocities of the oldest stars in our Milky Way Galaxy, our program seeks to understand the first objects in the Universe and the manner in which the Galaxy ...

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