2 papers
astro-ph.CO2020
Non-linear spherical collapse in tachyon models, and a comparison of collapse in tachyon and quintessence models of dark energy
Manvendra Pratap Rajvanshi, J. S. Bagla
We study evolution of perturbations in dark matter and dark energy for spherical collapse. We study Tachyon models of dark energy using the approach outlined in Rajvanshi and Bagla…
astro-ph.CO2019
Reconstruction of Dynamical Dark Energy Potentials: Quintessence, Tachyon and interacting models
Manvendra Pratap Rajvanshi, J. S. Bagla
Dynamical models for dark energy are an alternative to the cosmological constant. It is important to investigate properties of perturbations in these models and go beyond the smoot…