Investigation of Off-Pulse Emission from the Crab Pulsar using uGMRT Data

Research Intern | National Centre for Radio Astrophysics - TIFR | September 2022 - July 2023

Mentor: Dr Yashwant Gupta, Center Director and Professor

• Developed Python scripts for folding and binning time-series data to generate pulsar profiles from uGMRT observations of the Crab Pulsar.

• Implemented C routines to define on/off gates, enabling precise separation of pulsar on-pulse and off-pulse emission intervals.

• Applied pulsar timing, dedispersion techniques, and correlator analysis, utilizing software tools such as TEMPO2 and GMRT Pulsar Tool (gptool).

• Gained hands-on experience with radio telescope instrumentation, including antenna systems, back-end electronics, and control room operations through regular visits to the GMRT facility.

• Explored advanced pulsar analysis topics including folding, dedispersion, and time-domain signal processing, bridging computational methods with observational radio astronomy.

Results:

The figure displays the folded pulse profile of the Crab Pulsar derived from time-series observations.