Galaxy Evolution in Hot Dense Plasma of Abell 3581 and Abell 400

Abstract

In this work we have selected two clusters of galaxies Abell 400 and Abell 3581 clusters of galaxies with moderate distant (z$<$0.025$\sim$105 Mpc) in order to understand possible mutual interactions of extend intra cluster medium and galaxies within the clusters itself. Since each galaxy has different physical properties, we have applied a multi-band source detection technique to identify all types of point like sources within the field of view. We detect 80 X-ray point sources by EPIC-PN camera of XMM-Newton satellite of ESA. The detected sources are compared with Lockman-Hole field galaxies. The luminosity range is faint (39.3$<$log($L_X$)$<$41.7 ergs s${-1}$), which is probably polluted by low-mass X-ray binaries (LMXBs), hot halo, and low luminous active nuclei. X-ray to optical luminosity relations studied to understand distribution of galaxies. Based on our results, we observe an enhanced X-ray emission from galaxies from the cluster fields; in other words they are significantly brighter in X-rays.

Keywords

• X-rays: galaxies
• galaxies: clusters
• compact objects

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