Results 41 to 50 of about 106,851 (294)
Disk Galaxies Are Self-similar: The Universality of the H i-to-Halo Mass Ratio for Isolated Disks
The Astrophysical Journal Letters, 2023 Observed scaling relations in galaxies between baryons and dark matter global properties are key to shed light on the process of galaxy formation and on the nature of dark matter.
Marie Korsaga +9 more
doaj +1 more source
Rotation Curve of the Milky Way from Classical Cepheids [PDF]
Astrophysical Journal, 2018 Flat rotation curves of spiral galaxies are considered as an evidence for dark matter, but the rotation curve of the Milky Way is difficult to measure.
P. Mróz +9 more
semanticscholar +1 more source
Kinematics and dynamics of the M51-type galaxy pair NGC 3893/96 (KPG 302) [PDF]
, 2007 We study the kinematics and dynamics of the M51-type interacting galaxy pair KPG 302 (NGC 3893/96). We analyse the distribution of the dark matter (DM) halo of the main galaxy in order to explore possible differences between DM halos of "isolated ...
Amram, Philippe +4 more
core +4 more sources
CONSTRAINTS ON THE DECOMPOSITION OF THE ROTATION CURVES OF SPIRAL GALAXIES [PDF]
The Identification of Dark Matter, 2003 I discuss anew how arguments about the internal dynamics of galactic disks set constraints on the otherwise ambiguous decomposition of the rotation curves of spiral galaxies into the contributions by the various constituents of the galaxies. Analyzing the two sample galaxies NGC 3198 and NGC 2985 I conclude from the multiplicities of the spiral arms ...
B. Fuchs
openalex +4 more sources
Galaxy rotation curves in modified gravity models [PDF]
Journal of Cosmology and Astroparticle Physics, 2018 In this work, we investigate the possibility that the galaxy rotation curves can be explained in the framework of modified gravity models that introduce a Yukawa term in the gravitational potential.
Álefe de Almeida, L. Amendola, V. Niro
semanticscholar +1 more source
Reports in Advances of Physical Sciences, 2023 Birkhoff’s theorem (1923) states that in the framework of General Relativity the only solution to the central symmetric gravitational field in vacuum is the Schwarzschild metric.
Michel Canac
doaj +1 more source
Rotation Curves of High-Luminosity Spiral Galaxies and the Rotation Curve of our Galaxy [PDF]
Symposium - International Astronomical Union, 1979 Rotation curves of high luminosity spiral galaxies are flat, to distances as great as r=49 kpc. This implies a significant mass at large r. Rotational velocities increase about 20 km/s across a spiral arm, as predicted by the density wave theory. By analogy, it is suggested that our Galaxy has a flat rotation curve out to r∼60 kpc, with V ∼ constant at
openaire +1 more source
Hickson 62.I. Kinematics of NGC4778 [PDF]
, 2006 Detailed studies of the photometric and kinematical properties of compact groups of galaxies are crucial to understand the physics of galaxy interactions and to shed light on some aspects of galaxy formation and evolution.
Balcells +50 more
core +3 more sources
Rotation Curve and Mass Distribution in the Galactic Center - From Black Hole to Entire Galaxy [PDF]
, 2013 Analyzing high-resolution longitude-velocity (LV) diagrams of the Galactic Center observed with the Nobeyama 45-m telescope in the CO and CS line emissions, we obtain a central rotation curve of the Milky Way.
Y. Sofue
semanticscholar +1 more source
PROBES. I. A Compendium of Deep Rotation Curves and Matched Multiband Photometry
The Astrophysical Journal Supplement Series, 2022 We present the Photometry and Rotation Curve Observations from Extragalactic Surveys (PROBES) compendium of extended rotation curves for 3163 late-type spirals, with matching homogeneous multiband photometry for 1677 of them.
Connor Stone +4 more
doaj +1 more source