PEOPLE Visiting Scholars
International Centre for Theoretical Sciences, Bengaluru
Area of Research:  Gravitational-wave physics, analytical relativity
  +91 80 6730 6360, +91 80 4653 6360    
G-304
  balaiyer  ictsresin

Research Interests:
My principal research interest over the last two decades relate to the computation of high accuracy gravitational waveforms for inspiralling compact binaries (ICB) of neutron stars and black holes  using multipolar post Minkowskian methods. These high accuracy  waveforms  underlie the construction of gravitational wave templates used in the  gravitational wave (GW) data analysis pipelines  of detectors like  LIGO and Virgo. They also lead to a more accurate parameter estimation accuracy which would be crucial in extracting astrophysical information from terrestrial GW detectors like LIGO and  cosmological information from space based detectors like LISA. They are also imperative to validate  the numerical relativity waveforms for  plunge, merger and ring-down and to assess their accuracy and interpretation. Other allied research interests include application of resummation methods to extend the regime of validity of the PN approximants and to bridge the analytical relativity numerical relativity interface, phasing of binaries in quasi-elliptical orbits, development of tools to critically characterize  template banks and quantify them, studies on effects  of phasing and  amplitude corrections for parameter estimation of ICB, astrophysical and cosmological implications of higher harmonics of GW for the science case of LISA and finally, the extent to which LISA observations of supermassive black hole binaries can test general relativity.

Over the last two years, as Chair of its Council, I have been involved in leading the activities of the Indian Initiative in Gravitational-wave Observations (IndIGO) Consortium. The IndIGO Consortium is the proposer of LIGO-India and I am one of its principal leads.

I am the Editor-in-Chief and Subject Editor for Gravitational Waves for Living Reviews in Relativity. Over the last fifteen years, I have been involved in the Research Education Advancement Program (REAP)  for undergraduate teaching in Physics at the Jawaharlal Nehru Planetarium, Bangalore.

CV