Results 161 to 170 of about 33,724 (268)

Probing late-time annihilations of oscillating asymmetric dark matter via rotation curves of galaxies

European Physical Journal C: Particles and Fields
In this paper, we explore the Oscillating Asymmetric Dark Matter (OADM) model to address the core-cusp problem, aiming to resolve the discrepancy between the predictions of the $$\Lambda \textrm{CDM}$$ Λ CDM cosmological model and the observed dark ...
Júlia G. Mamprim, Guillermo Gambini, Luan B. Arbeletche, Marcos Olegario, Vitor de Souza   +4 more
doaj   +1 more source

Absolute Proper Motions of the Dwarf Spheroidal Galaxies in Draco and Ursa Minor [PDF]

, 1994
R.‐D. Scholz, M. J. Irwin
openalex   +1 more source

Assessing the Association between the Globular Cluster NGC 4147 and the Sagittarius Dwarf Galaxy

The Astronomical Journal
The potential association of the globular cluster (GC) NGC 4147 with the Sagittarius (Sgr) dwarf spheroidal galaxy has been proposed due to their comparable locations and radial velocities. However, there are still debates about this connection.
Ying-Hua Zhang, Jundan Nie, Hao Tian, Chao Liu   +3 more
doaj   +1 more source

A dynamical study of the Sextans dwarf spheroidal galaxy [PDF]

, 1994
J. C. Hargreaves, G. Gilmore, M. J. Irwin, D. Carter   +3 more
openalex   +1 more source

Tidal Disruption and Tails from the Carina Dwarf Spheroidal Galaxy [PDF]

, 1996
J. R. Kuhn, H. A. Smith, Suzanne L. Hawley   +2 more
openalex   +1 more source

Dynamical Friction by Coupled Dark Energy

The Astrophysical Journal
In this paper, we examine dynamical friction at galactic scales within the framework of coupled dark energy (CDE). This model posits dark energy as coupled quintessence, which maintains a minimal coupling to gravity but interacts nonminimally with both ...
Nasrin Nari, Mahmood Roshan
doaj   +1 more source

WFPC2 Observations of the Ursa Minor Dwarf Spheroidal Galaxy [PDF]

, 1999
Kenneth J. Mighell, Christopher J. Burke
openalex   +1 more source

The globular cluster system of the Sagittarius dwarf spheroidal galaxy: the age of Terzan 8 [PDF]

, 1998
Montegriffo, M. Bellazzini, Ferraro, Martins, Sarajedini, Fusi Pecci   +5 more
openalex   +1 more source

Abundances of Red Giants in the Andromeda II Dwarf Spheroidal Galaxy [PDF]

, 1999
Patrick Côté, J. B. Oke, Judith G. Cohen   +2 more
openalex   +1 more source

HSTPROMO Internal Proper-motion Kinematics of Dwarf Spheroidal Galaxies. I. Velocity Anisotropy and Dark Matter Cusp Slope of Draco

The Astrophysical Journal
We analyze four epochs of Hubble Space Telescope imaging over 18 yr for the Draco dwarf spheroidal galaxy. We measure precise proper motions for hundreds of stars and combine these with existing line-of-sight (LOS) velocities.
Eduardo Vitral, Roeland P. van der Marel, Sangmo Tony Sohn, Mattia Libralato, Andrés del Pino, Laura L. Watkins, Andrea Bellini, Matthew G. Walker, Gurtina Besla, Marcel S. Pawlowski, Gary A. Mamon   +10 more
doaj   +1 more source