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Testing the Large-scale Environments of Cool-core and Non-cool-core Clusters with Clustering Bias

Author(s): Medezinski, Elinor; Battaglia, Nicholas; Coupon, Jean; Cen, Renyue; Gaspari, Massimo; et al

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dc.contributor.authorMedezinski, Elinor-
dc.contributor.authorBattaglia, Nicholas-
dc.contributor.authorCoupon, Jean-
dc.contributor.authorCen, Renyue-
dc.contributor.authorGaspari, Massimo-
dc.contributor.authorStrauss, Michael A-
dc.contributor.authorSpergel, David N-
dc.date.accessioned2022-01-25T15:05:03Z-
dc.date.available2022-01-25T15:05:03Z-
dc.date.issued2017-02-08en_US
dc.identifier.citationMedezinski, Elinor, Battaglia, Nicholas, Coupon, Jean, Cen, Renyue, Gaspari, Massimo, Strauss, Michael A, Spergel, David N. (2017). Testing the Large-scale Environments of Cool-core and Non-cool-core Clusters with Clustering Bias. \apj, 836 (54 - 54. doi:10.3847/1538-4357/836/1/54en_US
dc.identifier.urihttp://arks.princeton.edu/ark:/88435/pr1g44hq4n-
dc.description.abstractThere are well-observed differences between cool-core (CC)and non-cool-core (NCC)clusters, but the origin of this distinction is still largely unknown. Competing theories can be divided into internal (inside-out), in which internal physical processes transform or maintain the NCC phase, and external (outside-in), in which the cluster type is determined by its initial conditions, which in turn leads to different formation histories (i.e., assembly bias). We propose a new method that uses the relative assembly bias of CC to NCC clusters, as determined via the two- point cluster-galaxy cross-correlation function (CCF), to test whether formation history plays a role in determining their nature. We apply our method to 48 ACCEPT clusters, which have well resolved central entropies, and cross- correlate with the SDSS-III/BOSS LOWZ galaxy catalog. We find that the relative bias of NCC over CC clusters is b=1.42±0.35 (1.6σdifferent from unity). Our measurement is limited by the small number of clusters with core entropy information within the BOSS footprint, 14 CC and 34 NCC clusters. Future compilations of X-ray cluster samples, combined with deep all-sky redshift surveys, will be able to better constrain the relative assembly bias of CC and NCC clusters and determine the origin of the bimodality.en_US
dc.language.isoen_USen_US
dc.relationhttps://ui.adsabs.harvard.edu/abs/2017ApJ...836...54M/abstracten_US
dc.relation.ispartofAstrophysical Journalen_US
dc.rightsFinal published version. Article is made available in OAR by the publisher's permission or policy.en_US
dc.titleTesting the Large-scale Environments of Cool-core and Non-cool-core Clusters with Clustering Biasen_US
dc.typeJournal Articleen_US
dc.identifier.doidoi:10.3847/1538-4357/836/1/54-
dc.date.eissued2017-02-10en_US
pu.type.symplectichttp://www.symplectic.co.uk/publications/atom-terms/1.0/journal-articleen_US

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