Search for extended sources in the images from Chandra X-ray Observatory Advanced CCD Imaging Spectrometer

TL;DR

ChaSES is a publicly available tool that uses DBSCAN clustering to identify extended X-ray sources in Chandra ACIS images, facilitating astrophysical research.

Contribution

This paper introduces ChaSES, a new software tool leveraging DBSCAN for detecting extended structures in X-ray images, with practical online examples.

Findings

Effective detection of extended X-ray sources demonstrated.

Tool is publicly accessible on GitHub for community use.

Provides extensive real-data application examples.

Abstract

We present a convenient tool (ChaSES) which allows to search for extended structures in Chandra X-ray Observatory Advanced CCD Imaging Spectrometer (ACIS) images. The tool relies on DBSCAN clustering algorithm to detect regions with overdensity of photons compared to the background. Here we describe the design and functionality of the tool which we make publicly available on GitHub. We also provide online extensive examples of its applications to the real data.