540 citations · 4k across the 92 of their papers we have counts for
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Constraining Thawing Dark Energy using Galaxy Cluster Number Counts
N. Chandrachani Devi, T. Roy Choudhury, Anjan A. Sen
We study the formation of galaxy clusters in the presence of thawing class of scalar field dark energy. We consider cases where the scalar field has canonical as well non canonical…
GCG Parametrization for Growth Function and Current Constraints
Gaveshna Gupta, Somasri Sen, Anjan A. Sen
We study the linear growth function for large scale structures in a cosmological scenario where Generalised Chaplygin Gas (GCG) serves as dark energy candidate. We parametrize…
Constraining Thawing Quintessence
Gaveshna Gupta, Subhabrata Majumdar, Anjan A Sen
We look at observational constraints on the thawing class of scalar field models proposed to explain the late time acceleration of the universe. Using the recently introduced `Stat…
Observational Constraints on Axions as Quintessence in String Theory
Gaveshna Gupta, Sudhakar Panda, Anjan A Sen
We study the observational constraints for the axion models in string theory which can successfully act as quintessence. The evolution of the universe in this model is sensitive to…
Cosmology of Horava-Lifshitz f(R) Gravity
Sayan K. Chakrabarti, Koushik Dutta, Anjan A. Sen
We discuss the cosmology of recently proposed Horava-Lifshitz f(R) gravity. In particular, we derive the modified Hubble equation that reduces to the standard HL gravity case in ap…
WMAP Constraints On K-Inflation
N. Chandrachani Devi, Akhilesh Nautiyal, Anjan A Sen
We study the K-Inflation models where the inflaton field has non-canonical kinetic term. In particular, we consider the Dirac-Born-Infeld (DBI) form for the kinetic energy of the i…