Results 131 to 140 of about 104,909 (264)

The size of the Milky Way galaxy

The size of a galaxy is one of the fundamental parameters that reflects its growth and assembly history. Traditionally, the size of the Milky Way has been characterized by the scale length of the disk, based on the assumption of an exponential density profile. Earlier scale length measurements suggest the Milky Way is an overly compact galaxy, compared
Lian, Jianhui, Zasowski, Gail, Chen, Bingqiu, Imig, Julie, Wang, Tao, Boardman, Nicholas, Liu, Xiaowei   +6 more
openaire   +2 more sources

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

Galaxies Behind the Milky Way and the Great Attractor [PDF]

, 2000
Lecture Series presented at the Mexican School of Astrophysics in Guanajuato, August 1999. In press in the series "Lecture Notes in Physics: GTO Lectures on Astrophysics", eds. D. Page and J. Hirsch, Springer: Heidelberg, p301-344, 18 figures, uses various included stylefiles. Version with full resolution available upon request (kraan@astro.ugto.mx)
openaire   +3 more sources

Redshift Distribution of Galaxies in the Southern Milky way Region 210° < I < 360° and |b| < 15° [PDF]

, 1996
Natarajan Vivanathan, Tōru Yamada
openalex   +1 more source

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 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

Are dSph galaxies Galactic building blocks?

EPJ Web of Conferences, 2012
Dwarf spheroidal galaxies (dSph) are frequently assumed to represent surviving examples of a vast now destroyed population of small systems in which many of the stars now forming the Milky Way were formed. Ongoing accretion and considerable sub-structure
Gilmore G., Asiri H.M.
doaj   +1 more source

A Visual Search for Galaxies in a Milky Way Region around the North Supergalactic Pole [PDF]

, 2000
A. T. Roman, Ikuru Iwata, Mamoru Saitō
openalex   +1 more source

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

Terraforming the Milky Way galaxy (Extended)

, 2023
The concept of terraforming the entire Milky Way galaxy within a timeframe of 400,000 to 1 million years, as proposed by NAR (Ndoni Advanced Robotics), presents several theoretical and speculative challenges, spanning immense timeframes and involving technologies far beyond our current understanding.
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