Name: Piyush Marmat
Affiliation: Indian Institute of Technology Roorkee
Conference ID : ASI2022_333
Title : A python based pipeline to analyse Interstellar scintillation of radio pulsars observed with ORT and uGMRT
Authors : Piyush Marmat, Jaikhomba Singha, Bhal Chandra Joshi
Abstract Type: Poster
Abstract Category : Stars, ISM and Galaxy
Abstract : Radio pulsars are marvel probes for studying several high-energy astrophysics phenomena due to their extreme properties and for studying the non-thermal plasma of the Interstellar medium of our Milky-way galaxy. Scintillation, or informally called "twinkling," is the observational characteristic of the scattering of light due to the irregularities present in any turbulent medium through which light traverses. Observations of radio pulsars have shown intensity variations due to the presence of turbulence and irregularities present in the ionized interstellar medium, which is called "Pulsar Scintillation". This observed scintillation in the intensity of these radio pulsars has been proved helpful in determining the structure of the interstellar medium present along the line of sight that connects us and any pulsar. We have observed PSR J0837+0610 that exhibits this scintillation phenomenon, and we have developed a Python and PSRCHIVE based pipeline to analyze scintillation spectra of pulsar observed with ORT and uGMRT. We present in this poster: (1) The working principle of this pipeline and methods employed for noise calibration specifically for ORT and uGMRT. (2) The scintillation parameters obtained for PSR J0837+0610 and (3) a detailed review and theoretical derivation of the Thin-screen model of cold-plasma in the ISM.