We present results of a comprehensive analysis of the polarization characteristics of GRB 200503A and GRB 201009A observed with the Cadmium Zinc Telluride Imager (CZTI) on board AstroSat. Despite these GRBs being reasonably bright, they were missed by several spacecraft and had thus far not been localized well, hindering polarization analysis. We present positions of these bursts obtained from the Inter-Planetary Network (IPN) and the newly developed CZTI localization pipeline. We then undertook polarization analyses using the standard CZTI pipeline. We cannot constrain the polarization properties for GRB 200503A, but find that GRB 201009A has a high degree of polarization.
@article{arxiv.2411.00410,
title = {Investigating Polarization characteristics of GRB200503A and GRB201009A},
author = {Divita Saraogi and Suman Bala and Jitendra Joshi and Shabnam Iyyani and Varun Bhalerao and J Venkata Aditya and D. S. Svinkin and D. D. Frederiks and A. L. Lysenko and A. V. Ridnaia and A. S. Kozyrev and D. V. Golovin and I. G. Mitrofanov and M. L. Litvak and A. B. Sanin and Tanmoy Chattopadyay and Soumya Gupta and Gaurav Waratkar and Dipankar Bhattacharya and Santosh Vadawal and Gulab Dewangan},
journal= {arXiv preprint arXiv:2411.00410},
year = {2024}
}