Results 101 to 110 of about 7,204,887 (298)

The dark matter distribution in disc galaxies [PDF]

open access: yes, 2000
We use high-quality optical rotation curves of nine low-luminosity disc galaxies to obtain the velocity profiles of the surrounding dark matter haloes. We find that they increase linearly with radius at least out to the edge of the stellar disc, implying
G. Gentile   +5 more
semanticscholar   +1 more source

Imprints of dark matter on black hole shadows using spherical accretions

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We study the possibility of identifying dark matter in the galactic center from the physical properties of the electromagnetic radiation emitted from an optically-thin disk region around a static and spherically symmetric black hole.
K. Saurabh, Kimet Jusufi
doaj   +1 more source

Brazilian Community Report on Dark Matter

open access: yes, 2019
Brazilian Community Report on Dark Matter This white paper summarizes the activities of the Brazilian community concerning dark matter physics and highlights the importance of financial support to Brazilian groups that are deeply involved in ...
Brazilian Community Report on Dark Matter
core   +1 more source

Oncogenic DMTF1β promotes cancer cell motility by regulating autophagy through ULK1 stabilization

open access: yesMolecular Oncology, EarlyView.
In the current study, we demonstrate that the oncogene DMTF1β regulates ULK1 stability by reducing its proteasomal degradation in cancer cells. This stabilization enables ULK1 to induce autophagy, which in turn facilitates cancer cell migration. Consequently, reduced DMTF1β levels lead to decreased autophagy and impaired cancer cell migration.
Jun Xu   +13 more
wiley   +1 more source

Implications of the Intriguing Constant Inner Mass Surface Density Observed in Dark Matter Halos

open access: yesGalaxies
It has long been known that the observed mass surface density of cored dark matter (DM) halos is approximately constant, independently of the galaxy mass (i.e., ρcrc≃constant, with ρc and rc being the central volume density and the radius of the core ...
Jorge Sánchez Almeida
doaj   +1 more source

Simulating Atomic Dark Matter in Milky Way Analogs

open access: yesThe Astrophysical Journal Letters, 2023
Dark sector theories naturally lead to multicomponent scenarios for dark matter where a subcomponent can dissipate energy through self-interactions, allowing it to efficiently cool inside galaxies.
Sandip Roy   +5 more
doaj   +1 more source

Modelling the IGM and the Lyα forest at high redshift from the dark matter distribution [PDF]

open access: yes, 2002
A variety of approximate schemes for modelling the low-density intergalactic medium (IGM) in the high-redshift Universe are compared with the results of a large high-resolution hydrodynamical simulation. These schemes use either an analytical description
M. Viel   +4 more
semanticscholar   +1 more source

DarkSUSY - A numerical package for dark matter calculations in the MSSM

open access: yes, 2001
The question of the nature of the dark matter in the Universe remains one of the most outstanding unsolved problems in basic science. One of the best motivated particle physics candidates is the lightest supersymmetric particle, assumed to be the ...
Gondolo, P   +14 more
core   +1 more source

In vitro and in silico modelling of ROS1‐positive non‐small cell lung cancer reveals fusion‐dependent tyrosine kinase inhibitor responses

open access: yesMolecular Oncology, EarlyView.
Drug resistance limits treatment success in a subset of lung cancers driven by ROS1 gene alterations. Using patient‐derived cells and computer simulations, we studied three key mutations and how they affect five targeted drugs. The mutations reduced drug effectiveness in different ways by altering protein structure and behavior.
Farhan Ul Haq   +8 more
wiley   +1 more source

Strong lensing in Abell 1703: constraints on the slope of the inner dark matter distribution [PDF]

open access: yes, 2008
Properties of dark matter haloes can be probed observationally and numerically, and comparing both approaches provides ways to constrain cosmological models. When it comes to the inner part of galaxy cluster scale haloes, interaction between the baryonic
M. Limousin   +11 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy