5 papers
Hint of dark matter-dark energy interaction in DESI DR2 and current cosmological dataset?
Amlan Chakraborty, Tulip Ray, Subinoy Das +2
We present new constraints on an interacting dark matter-dark energy scenario motivated by string compactification, where a scalar field adiabatically tracks the minimum of an effe…
Neutrino mass constraints in the context of 4-parameter dark energy equation of state and DESI DR2 observations
Gowri S Nair, Amlan Chakraborty, Luca Amendola +1
Cosmological constraints on the total neutrino mass, , are strongly shaped by assumptions about the dark-energy equation of state due to the well-known degeneracy betwee…
DESI results: Hint towards coupled dark matter and dark energy
Amlan Chakraborty, Prolay K. Chanda, Subinoy Das +1
We investigate a scenario where a dark energy quintessence field with positive kinetic energy is coupled with dark matter. With two different self-interaction potentials for t…
Cosmological constraints on mass-varying dark matter
Amlan Chakraborty, Anirban Das, Subinoy Das +1
As one of the fundamental unknowns of our Universe, the mass of dark matter remains to be a topic of great interest. We consider the possibility of a time-variation of the dark mat…
The prior dependence of the DESI results
Vrund Patel, Amlan Chakraborty, Luca Amendola
In this short contribution, we explore the prior dependence of the recent DESI results, according to which a Bayesian comparison of CDM with CDM cosmologies favors dyna…