Affiliation: Indian Institute of Technology Roorkee
Conference ID : ASI2022_355
Title : Study of Irregularities in Pulsars
Authors : Himanshu Grover (IITR), Jaikhomba Singha (IITR), Bhal Chandra Joshi (NCRA), P. Arumugam (IITR), Shantanu Desai (IITH), Debades Bandyopadhyay (SINP), Sarmistha Banik (BITS-Pilani)
Abstract Type: Poster
Abstract Category : Stars, ISM and Galaxy
Abstract : The slow-down law of pulsars is generally perturbed by two-timing irregularities: glitches and timing noise. Glitches are the sudden increase in the rotational frequency of pulsars, and timing noise is a slow, long term, discernible, stochastic deviation in the periods of pulsars. Glitches are rare. To this date, only 640 glitches in 205 pulsars have been observed. Glitches are usually observed in young pulsars where timing noise is also very prominent. Glitches and timing noise are great tools to study a wide variety of physics in our universe, e.g., the dynamics of superfluidity inside the star, behaviour regarding the participation of the stellar core, interior structure of the neutron star and many more. We present the status of our monitoring program to study irregularities in pulsars using the upgraded Giant Meterwave Radio Telescope (uGMRT) and Ooty Radio Telescope (ORT). We will also highlight how our current knowledge and experience in the glitch monitoring programme can be useful when Square Kilometer Array becomes operational.