6 papers
Probing the Distribution and Nature of Dark Matter Around Supermassive Black Holes from EMRI and IMRI Gravitational Waves
Jared Fier, Farah Abdelshahed, Lilly Kowalczyk +2
The distribution of dark matter in the immediate vicinity of supermassive black holes remains poorly understood despite its importance for galaxy evolution and precision tests of g…
Interacting Scalar Fields as Dark Energy and Dark Matter in Einstein scalar Gauss Bonnet Gravity
Saddam Hussain, Simran Arora, Yamuna Rana +2
A Gauss-Bonnet (GB) coupled scalar field , responsible for the late-time cosmic acceleration and interacting with a coherent scalar field through an interaction potential…
Interacting bosonic dark energy and fermionic dark matter in Einstein scalar Gauss-Bonnet gravity
Simran Arora, Saddam Hussain, Benjamin Rose +1
We explore a cosmological framework in which a Gauss-Bonnet (GB) coupled scalar field, acting as dark energy, interacts with a fermionic dark matter field through a coupling obtain…
Probing the Dynamics of Gaussian Dark Energy Equation of State Using DESI BAO
Saddam Hussain, Simran Arora, Anzhong Wang +1
We present an updated reconstruction of the DE equation of state (EoS), , employing the newly released DESI DR2 Baryon Acoustic Oscillation data. This analysis constrains the…
Gravitational wave cosmology in Einstein-scalar-Gauss-Bonnet gravity
Jared Fier, Henry Han, Bowen Li +3
In the framework of Einstein-scalar-Gauss-Bonnet (EsGB) gravity, we systematically study gravitational waves (GWs), first produced by remote compact astrophysical sources and then…
Interacting Models of Dark Energy and Dark Matter in Einstein scalar Gauss Bonnet Gravity
Saddam Hussain, Simran Arora, Yamuna Rana +2
We study the dynamics of the interacting models between the Gauss-Bonnet (GB) coupled scalar field and the dark matter fluid in a homogeneous and isotropic background. A key featur…