Chennai Mathematical Institute


3:30 pm, Seminar Hall
CMI Silver Jubilee Colloquium
What Physics and Astrophysics of Compact Objects will Gravitational Wave Observations Teach Us?

Sukanta Bose
IUCAA, Pune.


The two detectors of the Laser Interferometer Gravitational-wave Observatory (LIGO) are set to begin their first observation run later this year following hardware upgrades during the past few years. A few other detectors in the world, possibly including one in India, called LIGO-India, are expected to join them in the coming years to usher in the era of gravitational wave (GW) astronomy. Such a multi-baseline network will be able to localize GW transients, e.g., the merger of neutron star binaries, that it detects to within a few to tens of square-degrees. In this talk I will discuss both opportunities and challenges that arise from such a prospect. One opportunity is the possibility of developing a more complete understanding of these sources. To wit, are short duration gamma-ray bursts and kilonovae indeed associated with the merger of binaries involving neutron stars? Or, how well can we constrain the equation of state of a neutron star? Apart from discussing these aspects of what is clearly a multi-messenger endeavour, I will also mention how Indian telescopes can contribute to this effort.