In this thesis, I talk about calibration system in L-BASS telescope and difficulties in calibrating L-BASS telescope, even though a radio telescope, its main aim is to produce an absolutely calibrated map of sky without focusing on a single source, which makes the calibration system a bit tedious. I will talk about various allsky surveys and their significance that led to the motivation for L-BASS. I will also talk about theoretical aspect of linear regression of HI signal calibration from which I have produced HI calibration software that includes convolution of HI4PI survey to L-BASS resolution and selection of frequency limits for line integration based on HI4PI profiles, also involves applying correction for temperature effects and then converting the L-BASS data into a map of the relative brightness of northern sky by calibrating it with the HI4PI data.
| Date of Award | 20 Mar 2025 |
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| Original language | English |
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| Awarding Institution | - The University of Manchester
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| Supervisor | Paddy Leahy (Main Supervisor) & Neal Jackson (Co Supervisor) |
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- Galactic astronomy
- Radio astronomy
- L-Band all sky survey
- ARCADE-2 experiment
- radio instrumentation
- calibration challenges
- all-sky survey methodology
- HI (neutral hydrogen) line analysis
- data processing
- Cosmic microwave background.
L-BASS: HI Calibration System
Rastogi, A. (Author). 20 Mar 2025
Student thesis: Master of Science by Research