Detection of the Stellar Intracluster Medium in Perseus (Abell 426)

Abstract

Hubble Space Telescope photometry from the ACS/WFC and WFPC2 cameras is used to detect and measure globular clusters (GCs) in the central region of the rich Perseus cluster of galaxies. A detectable population of Intragalactic GCs is found extending out to at least 500 kpc from the cluster center. These objects display luminosity and color (metallicity) distributions that are entirely normal for GC populations. Extrapolating from the limited spatial coverage of the HST fields, we estimate very roughly that the entire Perseus cluster should contain ~50000 or more IGCs, but a targetted wide-field survey will be needed for a more definitive answer. Separate brief results are presented for the rich GC systems in NGC 1272 and NGC 1275, the two largest Perseus ellipticals. For NGC 1272 we find a specific frequency S_N = 8, while for the central giant NGC 1275, S_N ~ 12. In both these giant galaxies, the GC colors are well matched by bimodal distributions, with the majority in the blue (metal-poor) component. This preliminary study suggests that Perseus is a prime target for a more comprehensive deep imaging survey of Intragalactic GCs.

In press for Astrophysical Journal

References in corpus (24)

• The ACS Virgo Cluster Survey. XII. The Luminosity Function of Globular Clusters in Early Type Galaxies
• Baryons at the Edge of the X-ray Brightest Galaxy Cluster
• The SAGES Legacy Unifying Globulars and GalaxieS Survey (SLUGGS): Sample definition, methods, and initial results
• The Fornax Deep Survey with VST. I. The extended and diffuse stellar halo of NGC~1399 out to 192 kpc
• Galactic Dark Matter Halos and Globular Cluster Populations. III: Extension to Extreme Environments
• Intracluster light and the extended stellar envelopes of cD galaxies: An analytical description
• Globular Cluster Systems in Giant Ellipticals: the Mass/Metallicity Relation
• Dark Matter Halos in Galaxies and Globular Cluster Populations
• Dark Matter Halos in Galaxies and Globular Cluster Populations. II: Metallicity and Morphology
• Globular Cluster Systems in Brightest Cluster Galaxies: A Near-Universal Luminosity Function?
• The Cluster Velocity Dispersion of the Abell 2199 cD Halo of NGC 6166
• Intra Cluster Light properties in the CLASH-VLT cluster MACS J1206.2-0847
• On the Origin of Intracluster Light in Massive Galaxy Clusters
• The Extended Spatial Distribution of Globular Clusters in the Core of the Fornax Cluster
• The Globular Cluster Systems around NGC 3311 and NGC 3309
• Virgo's Intracluster Globular Clusters as Seen by the Advanced Camera for Surveys
• Globular Cluster Systems in Brightest Cluster Galaxies. II: NGC 6166
• Disentangling the ICL with the CHEFs: Abell 2744 as a case study
• Intra Cluster Globular Clusters around NGC 1399 in Fornax?
• Stellar Populations of BCGs, Close Companions and Intracluster Light in Abell 85, Abell 2457 and IIZw108
• The SLUGGS survey: Exploring the globular cluster systems of the Leo II group and their global relationships
• Globular Clusters, Ultracompact Dwarfs, and Dwarf Galaxies in Abell 2744 at the Redshift of 0.308
• Confirmation of Hostless Type Ia Supernovae Using Hubble Space Telescope Imaging
• The Hydra I cluster core. I. Stellar populations in the cD galaxy NGC 3311

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