Formation of wormholes by dark matter in the galaxy Dragonfly 44
@article{Islam2018FormationOW, title={Formation of wormholes by dark matter in the galaxy Dragonfly 44}, author={Sayeedul Islam and Farook Rahaman and Ali Ovgun and Mustafa Halilsoy}, journal={Canadian Journal of Physics}, year={2018} }
Recently, the ultra-diffuse galaxy (UDG) Dragonfly 44 in the Coma Cluster was observed and observations of the rotational speed suggest that its mass is almost the same as the mass of the Milky Way...
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References
SHOWING 1-10 OF 35 REFERENCES
Possible existence of wormholes in the galactic halo region
- Physics
- 2014
Two observational results, the density profile from simulations performed in the $$\Lambda $$ΛCDM scenario and the observed flat galactic rotation curves, are taken as input with the aim of showing…
A HIGH STELLAR VELOCITY DISPERSION AND ∼100 GLOBULAR CLUSTERS FOR THE ULTRA-DIFFUSE GALAXY DRAGONFLY 44
- Physics
- 2016
Recently a population of large, very low surface brightness, spheroidal galaxies was identified in the Coma cluster. The apparent survival of these ultra-diffuse galaxies (UDGs) in a rich cluster…
The Structure of cold dark matter halos
- Physics
- 1996
High resolution N-body simulations show that the density profiles of dark matter halos formed in the standard CDM cosmogony can be fit accurately by scaling a simple “universal” profile. Regardless…
Existence of traversable wormholes in the spherical stellar systems
- Physics
- 2015
Potentiality of the presence of traversable wormholes in the outer/inner regions of the halos of galaxies, situated on the Navarro-Frenk-White (NFW) density profile and Universal Rotation Curve (URC)…
The Optical Properties of Gravitational Lens Galaxies as a Probe of Galaxy Structure and Evolution
- Physics
- 1997
We combine photometry and lens modeling to study the properties of 17 gravitational lens galaxies between z = 0.1 and ~1. Most of the lens galaxies are passively evolving early-type galaxies, with a…
Rotating thin-shell wormhole
- Physics
- 2016
We construct a rotating thin-shell wormhole using a Myers-Perry black hole in five dimensions, using the Darmois-Israel junction conditions. The stability of the wormhole is analyzed under…
Light deflection by charged wormholes in Einstein-Maxwell-dilaton theory
- Physics
- 2017
In this paper, we study the deflection of light by a class of charged wormholes within the context of the Einstein-Maxwell-dilaton theory. The primordial wormholes are predicted to exist in the early…
Extended theories of gravity and their cosmological and astrophysical applications
- Physics
- 2007
Astrophysical observations are pointing out huge amounts of “dark matter” and “dark energy” needed to explain the observed large scale structure and cosmic dynamics. The emerging picture is a…
Tunnelling of vector particles from Lorentzian wormholes in 3+1 dimensions
- Physics
- 2015
In this article, we consider the Hawking radiation (HR) of vector (massive spin-1) particles from the traversable Lorentzian wormholes (TLWH) in 3+1 dimensions. We start by providing the Proca…