Astronomy & Astrophysics, 2023 Strong gravitational lensing is a powerful tool to provide constraints on galaxy mass distributions and cosmological parameters, such as the Hubble constant, H0. Nevertheless, inference of such parameters from images of lensing systems is not trivial as parameter degeneracies can limit the precision in the measured lens mass and cosmological results ...
Gomer, Matthew +8 more
openaire +5 more sources
The Star Formation History and Dynamics of the Ultra-diffuse Galaxy Dragonfly 44 in MOND and MOG [PDF]
Astrophysical Journal, 2019 The observed line-of-sight velocity dispersion σlos of the ultra-diffuse galaxy Dragonfly 44 (DF44) requires a Newtonian dynamical mass-to-light ratio of solar units.
H. Haghi +5 more
semanticscholar +1 more source
Structure and kinematics of edge-on galaxy discs - V. The dynamics of stellar discs [PDF]
Monthly Notices of the Royal Astronomical Society, 2005 Accepted for publication by Mon. Not.
Kregel, M +2 more
openaire +5 more sources
Data-driven Dynamics with Orbital Torus Imaging: A Flexible Model of the Vertical Phase Space of the Galaxy [PDF]
Astrophysical JournalThe vertical kinematics of stars near the Sun can be used to measure the total mass distribution near the Galactic disk and to study out-of-equilibrium dynamics.
A. Price-Whelan +6 more
semanticscholar +1 more source
Spatially Resolved Stellar Kinematics of the Ultra-diffuse Galaxy Dragonfly 44. II. Constraints on Fuzzy Dark Matter [PDF]
Astrophysical Journal, 2019 Given the absence of directly detected dark matter (DM) as weakly interacting massive particles, there is strong interest in the possibility that DM is an ultralight scalar field, here denoted as “fuzzy” DM.
A. Wasserman +11 more
semanticscholar +1 more source
Three contributions to Galaxy Dynamics: distant galaxy kinematics, mass, and M/L
, 1998 1) Rotation Curves and M/L Evolution for Galaxies to z=0.4, (Bershady, Haynes, Giovanelli, & Andersen) 2) Mass Estimates of Starbursting Galaxies: Line Widths versus Near-IR Luminosities (Jangren, Bershady, & Gronwall) 3) Galaxy Kinematics with Integral Field Spectroscopy (Andersen, Bershady)
Bershady, M. A. +5 more
openaire +2 more sources
The Dynamics of the Dwarf Elliptical Galaxy FS 76: Bridging the Kinematic Dichotomy between Elliptical and Dwarf Elliptical Galaxies [PDF]
The Astrophysical Journal, 2001 We present major- and minor-axis kinematics out to ˜2 half-light radii for the bright (MB = -16.7) dwarf elliptical galaxy (dE) FS 76, a member of the NGC 5044 group. Its velocity dispersion is 46 ‘ 2 km s-1 in the center and rises to 70 ‘ 10 km s-1 at half-light radius. Beyond 1Re, the dispersion starts to fall again.
De Rijcke, S +3 more
openaire +2 more sources
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT We present the measurement of total and stellar/dark matter decomposed mass density profile around a sample of galaxy groups and clusters with dynamical masses derived from integral-field stellar kinematics from the MaNGA survey in Paper I and weak lensing derived from the DECaLS imaging survey.
Chunxiang Wang +11 more
openaire +2 more sources
SHIELD: NEUTRAL GAS KINEMATICS AND DYNAMICS [PDF]
, 2016 We present kinematic analyses of the 12 galaxies in the “Survey of H i in Extremely Low-mass Dwarfs” (SHIELD). We use multi-configuration interferometric observations of the H i 21 cm emission line from the Karl G.
A. McNichols +28 more
semanticscholar +1 more source
Internal kinematics and dynamical models of dwarf spheroidal galaxies around the Milky Way [PDF]
New Astronomy Reviews, 2013 89 pages, 12 figures.
Battaglia +3 more
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