Searches for Gamma Ray sources with GRAPES-3
The GRAPES-3 experiment, located at an altitude of 2200 metres in, Ooty, Tamil Nadu, India (11.4°N, 76.7°E, 2200 m a.s.l.), records extensive air showers in the TeV–PeV energy range using an array of 400 plastic scintillator detectors arranged in a hexagonal grid over an area of 25,000 m², along with a 560 m² muon detector made of proportional counters. The latter allows showers initiated by $\gamma$-rays to be distinguished from those originating in Cosmic Rays. In this work, we compare the performance of different classes of deep learning algorithms against standard cut-based selection techniques in isolating a sample of $\gamma$-ray initiated showers from data gathered between 2017 and 2022. We report on a search for steady emission from the Crab Nebula.
Authors
- K. Ramesh
- P. K. Mohanty
- S. Shibata
- M. Chakraborty (ORCID: https://orcid.org/0000-0002-9736-9538)
- Y. Muraki (ORCID: https://orcid.org/0000-0003-0097-5185)
- Fahim Varsi (ORCID: https://orcid.org/0000-0001-7795-0467)
- Sandeep Rout (ORCID: https://orcid.org/0000-0002-8508-8229)
- S. K. Gupta (ORCID: https://orcid.org/0000-0001-8210-2825)
- Anuj Jain (ORCID: https://orcid.org/0000-0002-0036-9663)
- B. Hariharan (ORCID: https://orcid.org/0000-0002-4496-7163)
- D. Pattanaik (ORCID: https://orcid.org/0000-0002-1380-1187)
- M. Rameez (ORCID: https://orcid.org/0000-0001-5023-5631)
- M. Karthik
- P. K. Nayak (ORCID: https://orcid.org/0000-0001-9243-2318)
- T. Nonaka (ORCID: https://orcid.org/0000-0003-4795-500X)
- Kenji Tanaka (ORCID: https://orcid.org/0000-0003-2320-4535)
- Satoshi Kawakami (ORCID: https://orcid.org/0000-0001-5044-744X)
- Manish Talwar (ORCID: https://orcid.org/0000-0002-7266-3300)
- Sayan Paul (ORCID: https://orcid.org/0000-0001-9885-233X)
- Y. Hayashi (ORCID: https://orcid.org/0000-0002-2877-2788)
- H. Kojima
- A. Oshima
- S. Sarkar
- P. Jagadeesan
- S. Chatterjee (ORCID: https://orcid.org/0000-0003-2660-0349)
Publication Details
- Published
- 2025-09-23
- DOI
- https://doi.org/10.22323/1.501.0706
- Primary Topic
- Gamma-ray bursts and supernovae
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Tata Institute of Fundamental Research
- Department of Atomic Energy, Government of India