7 papers
Optical Signatures of Sgr A* and M87* with Dark Matter Halos
Noraiz Tahir, Muhammad Ali Paracha, Mubasher Jamil
The event horizon telescope (EHT) has opened a new window onto the strong-field regime by imaging the shadows of the supermassive black holes (SMBHs) Sgr A* and M87*. These observa…
Black hole shadow parameters and quasi-normal modes for Weyl-incorporated gravity
Noraiz Tahir, Mubasher Jamil, Kaynat Fatima +1
An additional term of the form in the Einstein-Hilbert Lagrangian was introduced to explain the interaction between matter and pure…
Dark Matter and Dark Energy in Three-Higgs Doublet Model
Mohid Farhan, Ibtehaj Hassan, Muhammad Usman +1
This article discusses the incorporation of dark matter and dark energy into a new physics model called the Three-Higgs Doublet Model. Dark matter and dark energy are accommodated…
The Galactic Halo Rotation by Weyl Incorporated Gravity
Asghar Qadir, Ashmal Shahid, Noraiz Tahir
A modification of the Einstein-Hilbert Lagrangian by introducing a coupling between the Weyl tensor and the stress-energy tensor was proposed to explain flat galactic rotation curv…
Accounting for the absence of anomalous microwave emission in the M 31 halo
Francesco De Paolis, Faryal Naseem, Noraiz Tahir
The discovery of a temperature asymmetry in the cosmic microwave background (CMB) data towards various galaxies has opened a window for a deeper comprehension of galactic halos. A…
Messier 90 galactic halo rotation in the microwaves
F. De Paolis, V. G. Gurzadyan, A. L. Kashin +4
We used Planck data to study the Virgo Cluster's galaxy M 90 and its surroundings. We find, as in the case of certain galaxies of the Local Group and its vicinity, a substantial te…