Results 41 to 50 of about 685,122 (335)

Observational evidence for self-interacting cold dark matter [PDF]

open access: yes, 2000
Cosmological models with cold dark matter composed of weakly interacting particles predict overly dense cores in the centers of galaxies and clusters and an overly large number of halos within the Local Group compared to actual observations.
A. A. de Laix   +40 more
core   +2 more sources

Holographic interacting dark energy in the braneworld cosmology

open access: yes, 2007
We investigate a model of brane cosmology to find a unified description of the radiation-matter-dark energy universe. It is of the interacting holographic dark energy with a bulk-holographic matter $\chi$.
Cai R. G.   +7 more
core   +1 more source

The Impact Of Cold Dark Matter Variants On The Halos Of The First Stars And Galaxies: Angular Momentum And Vortex Creation In BEC Dark Matter [PDF]

open access: yes, 2010
If cold dark matter elementary particles form a Bose-Einstein condensate, their superfluidity may distinguish them from other forms of cold dark matter, including the creation of quantum vortices.
Rindler-Daller, T., Shapiro, P. R.
core   +1 more source

Early Supersymmetric Cold Dark Matter Substructure [PDF]

open access: yesThe Astrophysical Journal, 2006
Earth-mass ``microhalos'' may be the first objects to virialize in the early universe. Their ability to survive the hierarchical clustering process as substructure in the larger halos that form subsequently has implications for dark matter detection experiments.
Diemand, J, Kuhlen, M, Madau, P
openaire   +3 more sources

Observational constraints on variable equation of state parameters of dark matter and dark energy after Planck

open access: yesPhysics Letters B, 2014
In this paper, we study a cosmological model in general relativity within the framework of spatially flat Friedmann–Robertson–Walker space–time filled with ordinary matter (baryonic), radiation, dark matter and dark energy, where the latter two ...
Suresh Kumar, Lixin Xu
doaj   +1 more source

Closed-form Expressions for Multiscatter Dark Matter Capture Rates

open access: yesThe Astrophysical Journal
Any astrophysical object can, in principle, serve as a probe of the interaction between dark matter (DM) and regular baryonic matter. This method is based on the potential observable consequences annihilations of captured DM have on the surface ...
Cosmin Ilie
doaj   +1 more source

Bose-Einstein Condensation of Dark Matter Axions [PDF]

open access: yes, 2009
We show that cold dark matter axions thermalize and form a Bose-Einstein condensate. We obtain the axion state in a homogeneous and isotropic universe, and derive the equations governing small axion perturbations.
Sikivie, P., Yang, Q.
core   +1 more source

Class IIa HDACs forced degradation allows resensitization of oxaliplatin‐resistant FBXW7‐mutated colorectal cancer

open access: yesMolecular Oncology, EarlyView.
HDAC4 is degraded by the E3 ligase FBXW7. In colorectal cancer, FBXW7 mutations prevent HDAC4 degradation, leading to oxaliplatin resistance. Forced degradation of HDAC4 using a PROTAC compound restores drug sensitivity by resetting the super‐enhancer landscape, reprogramming the epigenetic state of FBXW7‐mutated cells to resemble oxaliplatin ...
Vanessa Tolotto   +13 more
wiley   +1 more source

Strongly-interacting ultralight millicharged particles

open access: yesPhysics Letters B, 2021
We consider the implications of an ultra-light fermionic dark matter candidate that carries baryon number. This naturally arises if dark matter has a small charge under standard model baryon number whilst having an asymmetry equal and opposite to that in
Stephon Alexander   +2 more
doaj   +1 more source

Particle Physics Approach to Dark Matter

open access: yes, 2006
We review the main proposals of particle physics for the composition of the cold dark matter in the universe. Strong axion contribution to cold dark matter is not favored if the Peccei-Quinn field emerges with non-zero value at the end of inflation and ...
A. Djouadi   +64 more
core   +4 more sources

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