Astronomy and Astrophysics Seminars

Theoretical Modeling: an essential tool for confronting Neutron Star observations

by Dr. Debarati Chatterjee (University of Normandie and CNRS, France)

Tuesday, June 11, 2019 from to (Asia/Kolkata)
One of the most exciting and revolutionary scientific discoveries
  in recent times has been the detection of gravitational waves, opening a new
  window to the universe to massive cosmic objects that may not be visible in
  electromagnetic spectra. The detection of the neutron star merger event is
  particularly unique because it opened up a new era of multi messenger
  astronomy. With the new generation of X-ray and gamma-ray observatories (e.g.
  Fermi, Chandra, Astrosat) as well as the improvement of radio telescopes
  (e.g. VLA), there are simultaneous astrophysical observations of neutron
  stars, providing a wealth of information about these objects. However, a
  correct interpretation of multi-messenger astrophysical data from neutron
  stars is a very complex task, as it requires multidisciplinary information to
  describe its complex structure and composition, which creates uncertainties
  in numerical modelling leading to errors. In order to interpret correctly
  astrophysical observations of neutron stars, it is essential to construct
  consistent models, taking into account both microscopic and macroscopic
  aspects within the same formalism. I will describe my experience in
  developing the necessary tools for analytical description as well as in
  constructing consistent global numerical models of neutron stars relevant for
  confronting the abundant astrophysical data at our disposal.