28 August 2022 to 1 September 2022
Politecnico di Milano - Polo territoriale di Lecco
Europe/Rome timezone

GRB prompt emission polarimetry with proposed Indian high-energy transient monitor – Daksha

Not scheduled
20m
Politecnico di Milano - Polo territoriale di Lecco

Politecnico di Milano - Polo territoriale di Lecco

Politecnico di Milano - Polo territoriale di Lecco Via Previati 1/c – 23900 Lecco, Italy
Poster only Poster Session

Speaker

Dr SUMAN BALA (IIT Bombay)

Description

Daksha is an ambitious mission, expected to be the most sensitive high energy time-domain telescope. It will detect the highest number of GRBs and other high energy transients than any other mission. In addition to the interesting science with fainter and more distant sources, Daksha will also significantly impact the study of bright transients by measuring rapid spectral and temporal variations. A key feature is Daksha's ability to measure X-ray polarisation by utilizing multi-pixel events caused by Compton scattering of incoming photons. The large effective area, open CZT detectors, and the all-sky coverage make Daksha at least an order of magnitude more sensitive than the current generation satellites measuring GRB polarisation. The spectral and temporal analysis of GRB data allows us to identify models that are consistent with data; however, there are degeneracies among the various models. Different models give rise to a different degree of polarisation. A statistical analysis of GRBs' polarisation properties can help us constrain the models. In this work, we will present how Daksha and its capability of polarisation measurement will help us probe the physical processes related to GRBs and put constraints on the existing models related to GRBs.

Author

Dr SUMAN BALA (IIT Bombay)

Co-authors

Mr Parth Sastry (IIT Bombay) Sujay Mate (Tata Institute of Fundamental Research, Mumbai, India) Ms Divita Saraogi (IIT Bombay) Mr Mithun NPS (PRL) Prof. Varun Bhalerao (IIT Bombay) Prof. Sourav Palit (Indian Centre for Space Physics) Prof. Shriharsh Tendulkar (TIFR) Prof. Santosh Vadawale (PRL) Mr Advait Mehla (IIT Bombay) Mr Mehul Chanda (IIT Bombay) Mr Gaurav Waratkar (IIT Bombay)

Presentation materials

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