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This is a Quantitative Study study.

September 24, 2025Open Access

Detection of Supernova Remnants in the Large Magellanic Cloud at GeV Energies by Means of Cluster Analysis

Key Points

Eight new clusters indicative of supernova remnants were detected, expanding the total to sixteen sources.
The study utilized a 15-year Fermi-LAT data set, concentrating on energies over 4 GeV for improved results.
Clustering methods like Minimum Spanning Tree and DBSCAN were employed to enhance detection efficacy in non-uniform fields.
This research offers insights into the connection between X-ray and gamma-ray emissions from supernova remnants.

Abstract

We report the results of a new search using a 15-year long (up to August, 4 2023) Fermi-LAT data set at energies higher than 4 GeV for SNRs in the Large Magellanic Cloud, applying two clustering methods: the Minimum Spanning Tree (MST), and the combination of Density-Based Spatial Clustering of Applications with Noise (DBSCAN) and DENsity-based CLUstEring (DENCLUE). We found positive indications for 8 new clusters with a spatial correspondence with SNRs, and increase the number of detected or candidate remnants in the high energy rays to 16 sources. These findings confirm the capability of clustering algorithms to extract local photon concentrations even in not uniform fields like the LMC and extend our knowledge on the relation between the X-ray and gamma-ray SNRs at low luminosities.

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Cite This Study

Campana et al. (Tue,) studied this question.

synapsesocial.com/papers/68d6e1248b2b6861e4c3fa52 https://doi.org/https://doi.org/10.22323/1.501.0591

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