Results 71 to 80 of about 200,659 (240)
Turbulence statistics of H i clouds entrained in the Milky Way’s nuclear wind [PDF]
Monthly notices of the Royal Astronomical SocietyThe interstellar medium (ISM) is ubiquitously turbulent across many physically distinct environments within the Galaxy. Turbulence is key in controlling the structure and dynamics of the ISM, regulating star formation, and transporting metals within ...
I. Gerrard +5 more
semanticscholar +1 more source
A census of the expected properties of classical Milky Way dwarfs in Milgromian dynamics
, 2014 Prompted by the recent successful predictions of the internal dynamics of Andromeda's satellite galaxies (McGaugh & Milgrom 2013a,b), we revisit the classical Milky Way dwarf spheroidal satellites Draco, Sculptor, Sextans, Carina, and Fornax in the ...
Famaey, Benoit +2 more
core +2 more sources
The Three-phase Evolution of the Milky Way
The Astrophysical JournalWe illustrate the formation and evolution of the Milky Way over cosmic time, utilizing a sample of 10 million red giant stars with full chemodynamical information, including metallicities and α -abundances from low-resolution Gaia XP spectra.
Vedant Chandra +8 more
doaj +1 more source
Galactic kinematics with modified Newtonian dynamics
, 2009 We look for observational signatures that could discriminate between Newtonian and modified Newtonian (MOND) dynamics in the Milky Way, in view of the advent of large astrometric and spectroscopic surveys.
Angus +56 more
core +2 more sources
Stellar streams as gravitational experiments I. The case of Sagittarius [PDF]
, 2017 Tidal streams of disrupting dwarf galaxies orbiting around their host galaxy offer a unique way to constrain the shape of galactic gravitational potentials. Such streams can be used as leaning tower gravitational experiments on galactic scales.
Famaey, Benoit +4 more
core +1 more source
Deciphering the Kinematic Substructure of Local Dark Matter with LAMOST K Giants
The Astrophysical JournalNumerical simulations indicate that correlations exist between the velocity distributions of stars and dark matter (DM). We study the local DM velocity distribution based on these correlations.
Hai Zhu +7 more
doaj +1 more source
Dark Matter distribution in the Milky Way: microlensing and dynamical constraints [PDF]
Journal of Cosmology and Astroparticle Physics, 2011 We show that current microlensing and dynamical observations of the Galaxy permit to set interesting constraints on the Dark Matter local density and profile slope towards the galactic centre. Assuming state-of-the-art models for the distribution of baryons in the Galaxy, we find that the most commonly discussed Dark Matter profiles (viz. Navarro-Frenk-
Gianfranco Bertone +4 more
openaire +5 more sources
Stream Fanning and Bifurcations: Observable Signatures of Resonances in Stellar Stream Morphology
The Astrophysical Journal, 2023 Recent observations have revealed a trove of unexpected morphological features in many of the Milky Way’s stellar streams. Explanations for such features include time-dependent deformations of the Galactic gravitational potential, local disruptions ...
Tomer D. Yavetz +4 more
doaj +1 more source
Locally Cold Flows from Large-Scale Structure
, 2011 We show that the "cold" Hubble flow observed for galaxies around the Milky Way does not represent a problem in cosmology but is due to the particular geometry and dynamics of our local wall.
A. S. Szalay +40 more
core +1 more source
Candidate Members of the VMP/EMP Disk System of the Galaxy from the SkyMapper and SAGES Surveys
The Astrophysical Journal Supplement SeriesPhotometric stellar surveys now cover a large fraction of the sky, probe to fainter magnitudes than large-scale spectroscopic surveys, and are relatively free from the target selection biases often associated with such studies.
Jihye Hong +17 more
doaj +1 more source