Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/3969
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dc.contributor.authorTiwari, Juhi-
dc.contributor.authorSingh, Kulinder Pal-
dc.date.accessioned2021-12-14T11:06:10Z-
dc.date.available2021-12-14T11:06:10Z-
dc.date.issued2020-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 500(4):5524–5542.en_US
dc.identifier.urihttps://academic.oup.com/mnras/article/500/4/5524/5998244?login=true-
dc.identifier.urihttps://doi.org/10.1093/mnras/staa3619-
dc.identifier.urihttp://hdl.handle.net/123456789/3969-
dc.description.abstractWe present a detailed X-ray study of the central subcluster of the nearby (⁠z∼0.0368) Hercules cluster (Abell 2151) identified as A2151C that shows a bimodal structure. A bright clump of hot gas with X-ray emission extending to radius r∼304 kpc and LX=3.03+0.02−0.04×1043 erg s−1 in the 0.4–7.0 keV energy range is seen as a fairly regular subclump towards the west (A2151C(B)). An irregular, fainter and cooler subclump with radius r∼364 kpc is seen towards the east (A2151C(F)) and has LX = 1.13 ± 0.02 × 1043 erg s−1 in the 0.4–7.0 keV energy band. The average temperature and elemental abundance of A2151C(B) are 2.01 ± 0.05 keV and 0.43 ± 0.05 Z⊙, respectively, while these values are 1.17 ± 0.04 keV and 0.13 ± 0.02 Z⊙ for A2151C(F). Low temperature (1.55 ± 0.07 keV) and a short cooling time (∼0.81 Gyr) within the central 15 arcsec region confirm the presence of a cool core in A2151C(B). We identify several compact groups of galaxies within A2151C(F). We find that A2151C(F) is a distinct galaxy group in the process of formation and likely not a ram-pressure stripped part of the eastern subcluster in Hercules (A2151E). X-ray emission from A2151C shows a region of overlap between A2151C(B) and A2151C(F) but without any enhancement of temperature or entropy in the two-dimensional (2D) projected thermodynamic maps that could have indicated an interaction due to a merger between the two subclumps.en_US
dc.language.isoenen_US
dc.publisherOxford Academicen_US
dc.subjectHercules clusteren_US
dc.subjectX-raysen_US
dc.subjectXMM-Newtonen_US
dc.titleThe Hercules cluster in X-rays with XMM-Newton and Chandraen_US
dc.typeArticleen_US
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