Abstract Details

Name: Bhal Chandra Joshi
Affiliation: NCRA-TIFR
Conference ID: ASI2017_611
Title : Radio Pulsars, gravity and an Indian Pulsar Timing Array
Authors and Co-Authors : Bhal Chandra Joshi (National Centre for Radio Astrophysics), A. Gopakumar (Tata Institute for Fundamental Research), M Bagchi (Institute for Mathematical Sciences), Dhruv Pathak (Institute for Mathematical Sciences), M A Krishnakumar (Radio Astronomy Centre, National Centre for Radio Astrophysics), Arun Kumar Naidu (National Centre for Radio Astrophysics), Mayuresh P Surnis (Radio Astronomy Centre, National Centre for Radio Astrophysics), P K Manoharan (Radio Astronomy Centre, National Centre for Radio Astrophysics), Prakash Arumugasamy (National Centre for Radio Astrophysics), Yogesh Maan (ASTRON)
Abstract Type : Oral
Abstract Category : General Relativity and Cosmology
Abstract : Radio pulsars have traditionally played an important role in tests of gravity theories and the first indirect detection of gravitational waves. The current state of art in these two spheres is briefly reviewed, with the current level of constraints from double neutron star systems and asymetric mass systems, current and to be discovered in future using new telescopes like Square Kilometer Array. An Indian effort for constraining gravitational waves using radio millisecond pulsars from an ensemble of super massive black hole binaries, using the Ooty Radio Telescope and the Giant Meterwave Radio Telescope, called InPTA, is described alongwith new results on Dispersion Measure variations obtained from this experiment. The scope of this experiment in the context of International Pulsar Timing Array is examined alongwith possible development of dedicated pulsar timing array facilities in India.