Seminars : Documents

Pulsar Glitches: A typical timing irregularity to probe superfluid inside the neutron stars.
A. Basu (University of Manchester)

Pulsars are rapidly rotating neutron stars, observed to emit beamed radio emission along the open magnetic field lines. Their extremely stable rotation rate along with pulsed emission makes them perfect cosmic clocks. Though they are known to have stable rotation, often the younger population exhibits sudden deviation in such properties. Such irregularities are called as glitches and timing noise. Such variations are studied via the technique of pulsar timing. Pulsar glitches are excellent probes on the superfluid inside the neutron star. In particular, the post glitch evolution of the rotation rate is closely connected to the inhomogeneous matter inside the neutron star crust and the properties of the superfluids. In this talk, I will present a pedagogical introduction to the physics of pulsar glitches and pulsar timing. I will also talk about our recent results obtained from the theoretical and observational studies using the Ooty Radio Telescope (ORT) and Upgraded Giant Metrewave Radio Telescope (uGMRT)