Results 11 to 20 of about 147,087 (317)

Weighing the Milky Way [PDF]

open access: yesClassical and Quantum Gravity, 2003
10 pages, 1 ...
M. KARIM, TARTAGLIA, Angelo, A. BOKHARI
openaire   +6 more sources

Milky way [PDF]

open access: yesEndoscopic Ultrasound, 2022
Ahmed, Moiz   +4 more
openaire   +3 more sources

The Milky Way disk

open access: yes, 2015
7 pages, 9 figures. Full text in English. To be published in the 57 Bulletin of the Argentinian Association of Astronomy (BAAA 57)
Carraro, Giovanni
openaire   +4 more sources

The mass of our Milky Way [PDF]

open access: yes, 2020
We perform an extensive review of the numerous studies and methods used to determine the total mass of the Milky Way. We group the various methods into seven broad classes, including: i) estimating Galactic escape velocity using high velocity objects; ii)
Cautun, Marius   +4 more
core   +3 more sources

Probing the Milky Way [PDF]

open access: yesAstronomy & Geophysics, 2016
Charlie Walker, Ben Shaw and colleagues give an overview of how the sensitivity, superb resolution and lack of obscuration in e-MERLIN data is changing what we know about our home galaxy and the lifecycles of its stars.
Asanok, K   +9 more
openaire   +6 more sources

The Rapid Onset of Stellar Bars in the Baryon-dominated Centers of Disk Galaxies

open access: yesThe Astrophysical Journal, 2023
Recent observations of high-redshift galactic disks ( z ≈ 1–3) show a strong negative trend in the dark-matter (DM) fraction f _DM with increasing baryon surface density.
Joss Bland-Hawthorn   +3 more
doaj   +1 more source

Antimatter in the Milky Way [PDF]

open access: yesNuclear Physics B, 2007
Observational signatures of existence of antimatter objects in the Galaxy are discussed. We focus on point-like sources of gamma radiation, diffuse galactic gamma ray background and anti-nuclei in cosmic rays.
A.D. Dolgov   +3 more
openaire   +3 more sources

The Observable Properties of Galaxy Accretion Events in Milky Way–like Galaxies in the FIRE-2 Cosmological Simulations

open access: yesThe Astrophysical Journal, 2023
In the Λ-Cold Dark Matter model of the universe, galaxies form in part through accreting satellite systems. Previous works have built an understanding of the signatures of these processes contained within galactic stellar halos.
Danny Horta   +9 more
doaj   +1 more source

The R-Process Alliance: Chemodynamically Tagged Groups. II. An Extended Sample of Halo r-process-enhanced Stars

open access: yesThe Astrophysical Journal, 2023
Orbital characteristics based on Gaia Early Data Release 3 astrometric parameters are analyzed for ∼1700 r -process-enhanced (RPE; [Eu/Fe] > +0.3) metal-poor stars ([Fe/H] ≤ −0.8) compiled from the R -Process Alliance, the GALactic Archaeology with ...
Derek Shank   +10 more
doaj   +1 more source

The Tilt of the Velocity Ellipsoid of Different Galactic Disk Populations

open access: yesThe Astrophysical Journal, 2023
The tilt of the velocity ellipsoid is a helpful tracer of the gravitational potential of the Milky Way. In this paper, we use nearly 140,000 red clump (RC) stars selected from LAMOST and Gaia to make a detailed analysis of the tilt of the velocity ...
Weixiang Sun, Han Shen, Xiaowei Liu
doaj   +1 more source

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