Results 141 to 150 of about 1,922 (181)

Stellar dynamics and dark matter in Local Group dwarf galaxies

Nature Astronomy, 2022
When interpreted within the standard framework of Newtonian gravity and dynamics, the kinematics of stars and gas in dwarf galaxies reveals that most of these systems are completely dominated by their dark matter halos.
G. Battaglia, C. Nipoti
semanticscholar   +1 more source

Gas dynamics in dwarf galaxies as testbeds for dark matter and galaxy evolution

Nature Astronomy, 2022
Dwarf galaxies are ideal laboratories to test dark matter models and alternative theories because their dynamical mass (from observed kinematics) largely outweighs their baryonic mass (from gas and stars).
F. Lelli
semanticscholar   +1 more source

Stellar Kinematics and Dynamical Modeling of Two Seyfert Galaxies

2023
A crucial breakthrough in the study of galaxy evolution occurred with the discovery that black holes are ubiquitous in galaxy nuclei, and the masses of supermassive black holes scale with several properties of the host galaxies. The interpretation is that central black holes and their host galaxies co-evolve and regulate one anothers growth.
openaire   +1 more source

Kinematics and dynamics of the central region in the barred galaxy NGC 1365

Monthly Notices of the Royal Astronomical Society, 1986
On rapporte l'observation interferometrique des raies d'emission Hα de NGC 1365. On note la presence de mouvements d'ecoulement non circulaires.
Teuben, P.J., Sanders, R.H., Atherton, P.D., van Albada, G.D.   +3 more
openaire   +1 more source

Kinematical And Dynamical Properties Of Galaxy Clusters And Substructures Within The Wings Project

2008
233 ...
openaire   +1 more source

Mergers all the way down: stellar collisions and kinematics of a dense hierarchically forming massive star cluster in a dwarf starburst

Recent observations indicate that the progenitors of globular clusters (GCs) at high redshifts had high average stellar surface densities above $10^5\, \mathrm{M}_\odot\, \mathrm{pc}^{-2}$.
Natalia Lah'en, T. Naab, A. Rantala, Christian Partmann   +3 more
semanticscholar   +1 more source

Globular clusters kinematics and dynamical models of the massive early-type galaxy NGC 1399

Astrophysics and Space Science, 2016
We analyze the dynamical models of the massive early-type galaxy NGC 1399, the central galaxy of the Fornax cluster. We use the sample of 790 globular clusters as tracers of gravitational potential and we first extract the kinematics, which is then dynamically modeled.
openaire   +1 more source

Planetary Nebulae as kinematic and dynamical tracers of galaxy halos

2015
The kinematics and dynamical properties of galaxy halos are difficult to measure, given the faint stellar surface brightness that characterizes those regions. Gas-rich systems such as spiral galaxies can be probed using the radio emission of their gas component.
Coccato, Lodovico, Napolitano, Nicola, Arnaboldi, Magda, Cortesi, Arianna, Romanowsky, Aaron, Gerhard, Ortwin, Merrifield, Michael, Kuijken, Konrad, Freeman, Ken, Douglas, Nigel   +9 more
openaire   +1 more source

The Dynamics and kinematics of galaxies in the Universe's Middle Ages

The evolutionary pathways a galaxy can follow are many and varied. Across billions of years of cosmic history, galaxies can experience numerous in situ and ex situ processes, each of which can leave a mark on their internal mass distribution and stellar kinematics.
openaire   +1 more source

Velocity fields in late-type galaxies from H-alpha Fabry-Perot interferometry. IV - Kinematics and dynamics of the SAB(s) spiral NGC 5236 (M83)

, 1983
G. Vaucouleurs, W. Pence, E. Davoust
semanticscholar   +1 more source