10 citations · 18 across the 5 of their papers we have counts for
5 papers
The stellar bar - dark matter halo connection in the TNG50 simulations
Sioree Ansar, Mousumi Das
Stellar bars in disk galaxies grow as stars in near circular orbits lose angular momentum to their environments, including their Dark Matter (DM) halo, and transform into elongated…
Bar formation and destruction in the FIRE-2 simulations
Sioree Ansar, Sarah Pearson, Robyn E. Sanderson +5
The physical mechanisms responsible for bar formation and destruction in galaxies remain a subject of debate. While we have gained valuable insight into how bars form and evolve fr…
Dark Matter Halo Spin of the Dwarf Galaxy UGC 5288: Insights from Observations, N-body and Cosmological Simulations
Sioree Ansar, Sandeep K Kataria, Mousumi Das
Dark matter (DM) halo angular momentum is very challenging to determine from observations of galaxies. In this study, we present a new hybrid method of estimating the dimensionless…
Modelling Dark Matter Halo Spin using Observations and Simulations: application to UGC 5288
Sioree Ansar, Sandeep Kumar Kataria, Mousumi Das
Dark matter (DM) halo properties are extensively studied in cosmological simulations but are very challenging to estimate from observations. The DM halo density profile of observed…
Impact of inhomogeneous CMB heating of gas on the HI 21-cm signal during dark ages
Sioree Ansar, Kanan K. Datta, Dhruba Dutta Chowdhury
Observations of redshifted 21-cm signal from neutral hydrogen (HI) appear to be the most promising probe of the cosmic dark ages. The signal carries information about the thermal s…