| Abstract : | Galaxies are surrounded by Circumgalactic medium (CGM) that plays an important role in galaxy
evolution by supplying fresh fuel for star formation, regulating the stellar feedback etc. Various parametric and non parametric models of the CGM have been developed in order to explain the emission and absorption from CGM using different observable like Emission Measure (EM), Dispersion Measure (DM), Column Density etc. These models have different parameters which are to be constrainted using different observable diagnostics. In order to do so, we have built a library of these models where one can generate various profiles like Density, Pressure, Temperature, Entropy, EM maps, DM maps, Column Density and compare them with observations. Doing so, one can thus compare different models and take the best CGM model out of all the existing models. The best model can be chosen with the help of many observations of the CGM which are going to be available in the near future with the advent of new sensitive probes like eROSITA, HaloSat, Athena etc and existing facilities like XMM Newton, Suzaku, Chandra etc. The other observations
include the Dispersion Measure and Rotation Measure (RM) of newly discovered FRBs which are distributed in the entire sky and thus we can map the entire sky. The ultimate motive is to have an utility where model prediction can be done quickly with various adjustments like changing the parameters, adding models together, adding a new model etc. In this regard our library of models is modular, quick, flexible and thus can be utilized widely and efficiently. |
