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The Absence of X-ray Luminous Sources in the Galaxy Cluster: AS0296

Hakan Sert, Turgay Caglar, Hasan Ilker Kaya
Keywords: galaxies: active – galaxies: clusters: general – X-rays: galaxies: clusters: intracluster medium – galaxies: clusters: Abell S0296
In this work, we performed X-ray data analysis to understand possible interactions between inter-cluster medium and member galaxies within Abell S0296 cluster environment. X-ray point-like sources are detected using source detection algorithms. We performed log N - log S in the energy range of 2-10 keV to measure X-ray source number density. The mean intra-cluster medium temperature, abundance, gas density, pressure and X-ray luminosity are found kT = 2.26 ± 0.15 keV, Z = 0.18 ± 0.03 solar, ρ = 2.52 ± 0.23 × 10−3 cm−3, P = 5.70 ± 0.64 × 10−3 keV cm−3 and LX = 1.23±0.1 × 1043 erg s−1, respectively. We find a slightly higher X-ray source over density for Abell S0296 relative to non-clustered fields. Our result reveals that X-ray sources are fainter than expected. Due to lack of high luminous X-ray sources within Abell S0296’s cluster potential well, we find evidence that X-ray sources are quenched due to the influence of high cluster mass. We conclude that the main X-ray emissions from point-like sources are produced by X-ray binaries and/or low-luminous active galactic nuclei.


Tamap Journal of Physical Sciences



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