Observations of the 21 cm HI Line from the Milky Way galaxy using Pyramidal Horn Radio Telescope
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| Format: | Preprint |
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2025
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| _version_ | 1866918259048054784 |
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| author | Bhattacharjee, Kaustav Grover, Himanshu Arumugam, P. |
| author_facet | Bhattacharjee, Kaustav Grover, Himanshu Arumugam, P. |
| contents | We present the design, implementation, and operation of a pyramidal horn radio telescope built for detecting the Galactic 21 cm neutral hydrogen line emission. The system employs an SDR-based pipeline to obtain drift-scan observations, which were calibrated and processed to generate HI sky maps, a Galactic rotation curve and spiral arm features. This demonstrates that this low-cost system is effective both for educational purposes and scientific exploration of Galactic structure at radio frequencies. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2512_19262 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Observations of the 21 cm HI Line from the Milky Way galaxy using Pyramidal Horn Radio Telescope Bhattacharjee, Kaustav Grover, Himanshu Arumugam, P. Instrumentation and Methods for Astrophysics Astrophysics of Galaxies We present the design, implementation, and operation of a pyramidal horn radio telescope built for detecting the Galactic 21 cm neutral hydrogen line emission. The system employs an SDR-based pipeline to obtain drift-scan observations, which were calibrated and processed to generate HI sky maps, a Galactic rotation curve and spiral arm features. This demonstrates that this low-cost system is effective both for educational purposes and scientific exploration of Galactic structure at radio frequencies. |
| title | Observations of the 21 cm HI Line from the Milky Way galaxy using Pyramidal Horn Radio Telescope |
| topic | Instrumentation and Methods for Astrophysics Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2512.19262 |