Results 11 to 20 of about 147,087 (317)
10 pages, 1 ...
M. KARIM, TARTAGLIA, Angelo, A. BOKHARI
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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
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The mass of our Milky Way [PDF]
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
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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
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The Rapid Onset of Stellar Bars in the Baryon-dominated Centers of Disk Galaxies
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
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Antimatter in the Milky Way [PDF]
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
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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
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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
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The Tilt of the Velocity Ellipsoid of Different Galactic Disk Populations
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
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