Deep Imaging of the HCG 95 Field.I.Ultra-diffuse Galaxies

Abstract

We present a detection of 89 candidates of ultra-diffuse galaxies (UDGs) in a 4.9 degree${}^2$ field centered on the Hickson Compact Group 95 (HCG 95) using deep $g$- and $r$-band images taken with the Chinese Near Object Survey Telescope. This field contains one rich galaxy cluster (Abell 2588 at $z$=0.199) and two poor clusters (Pegasus I at $z$=0.013 and Pegasus II at $z$=0.040). The 89 candidates are likely associated with the two poor clusters, giving about 50 $-$ 60 true UDGs with a half-light radius $r_{\mathrm{e}}>1.5$ kpc and a central surface brightness $\mu (g,0)>24.0$ mag arcsec${}^{-2}$. Deep $z$'-band images are available for 84 of the 89 galaxies from the Dark Energy Camera Legacy Survey (DECaLS), confirming that these galaxies have an extremely low central surface brightness. Moreover, our UDG candidates are spread over a wide range in $g-r$ color, and $\sim$26% are as blue as normal star-forming galaxies, which is suggestive of young UDGs that are still in formation. Interestingly, we find that one UDG linked with HCG 95 is a gas-rich galaxy with H I mass $1.1\times 10^9{M}_{\odot }$ detected by the Very Large Array, and has a stellar mass of $M_{\star }\sim 1.8\times 10^8$ $M_{\odot }$. This indicates that UDGs at least partially overlap with the population of nearly dark galaxies found in deep H I surveys. Our results show that the high abundance of blue UDGs in the HCG 95 field is favored by the environment of poor galaxy clusters residing in H I-rich large-scale structures.

arXiv commentPublished in ApJ

References in corpus (52)

• Stellar population synthesis at the resolution of 2003
• Detailed Structural Decomposition of Galaxy Images
• The Optical and Near-Infrared Properties of Galaxies: I. Luminosity and Stellar Mass Functions
• The epochs of early-type galaxy formation as a function of environment
• The Arecibo Legacy Fast ALFA Survey: I. Science Goals, Survey Design and Strategy
• The Arecibo Legacy Fast ALFA Survey: The alpha.40 HI Source Catalog, its Characteristics and their Impact on the Derivation of the HI Mass Function
• Galaxy And Mass Assembly: Stellar Mass Estimates
• A concise reference to (projected) Sersic R^{1/n} quantities, including Concentration, Profile Slopes, Petrosian indices, and Kron Magnitudes
• Forty-Seven Milky Way-Sized, Extremely Diffuse Galaxies in the Coma Cluster
• The Updated Zwicky Catalog (UZC)
• Optical Mass Estimates of Galaxy Clusters
• A ROSAT survey of Hickson's compact galaxy groups
• NIHAO XI: Formation of Ultra-Diffuse Galaxies by outflows
• Ultra-diffuse galaxies: the high-spin tail of the abundant dwarf galaxy population
• A High Stellar Velocity Dispersion and ~100 Globular Clusters for the Ultra Diffuse Galaxy Dragonfly 44
• Ultra Low Surface Brightness Imaging with the Dragonfly Telephoto Array
• (Almost) Dark Galaxies in the ALFALFA Survey: Isolated HI Bearing Ultra Diffuse Galaxies
• Galaxies at the extremes: Ultra-diffuse galaxies in the Virgo Cluster
• Ultra diffuse galaxies outside clusters: clues to their formation and evolution
• The Relationships Among Compact Stellar Systems: A Fresh View of Ultra Compact Dwarfs
• Unveiling a Rich System of Faint Dwarf Galaxies in the Next Generation Fornax Survey
• An overmassive Dark Halo around an Ultra-diffuse Galaxy in the Virgo Cluster
• The abundance and spatial distribution of ultra-diffuse galaxies in nearby galaxy clusters
• Geometry of Star-Forming Galaxies from SDSS, 3D-HST and CANDELS
• Spatial distribution of ultra-diffuse galaxies within large-scale structures
• Extensive Globular Cluster Systems Associated with Ultra Diffuse Galaxies in the Coma Cluster
• GalPak3D: A Bayesian parametric tool for extracting morpho-kinematics of galaxies from 3D data
• The IAC Stripe 82 Legacy Project: a wide-area survey for faint surface brightness astronomy
• Discovery of an ultra-diffuse galaxy in the Pisces-Perseus supercluster
• Spectroscopic Confirmation of the Existence of Large, Diffuse Galaxies in the Coma Cluster
• The Dragonfly Nearby Galaxies Survey. II. Ultra diffuse galaxies near the elliptical galaxy NGC 5485
• The quenching and survival of ultra-diffuse galaxies in the Coma cluster
• Globular clusters indicate ultra diffuse galaxies are dwarfs
• A Rich Globular Cluster System in Dragonfly 17: Are Ultra-Diffuse Galaxies Pure Stellar Halos?
• The nearest ultra diffuse galaxy: UGC2162
• Intra-group diffuse light in compact groups of galaxies. HCG 79, HCG 88 and HCG 95
• The scale-dependence of relative galaxy bias: encouragement for the halo model description
• The structure of elliptical galaxies in the Virgo cluster. Results from the INT Wide Field Survey
• (Almost) Dark HI Sources in the ALFALFA Survey: The Intriguing Case of HI1232+20
• Ultra-diffuse and Ultra-compact Galaxies in the Frontier Fields Cluster Abell 2744
• Star Forming Objects in the Tidal Tails of Compact Groups
• A large sample of low surface brightness disk galaxies from the SDSS. I: The sample and the stellar populations
• Redshift, metallicity and size of two extended dwarf Irregular galaxies. A link between dwarf Irregulars and Ultra Diffuse Galaxies?
• Merging Cold Fronts in the Galaxy Pair NGC 7619 and NGC 7626
• The Faint End of the Luminosity Function and Low Surface Brightness Galaxies
• The Effect of Cluster Environment on Galaxy Evolution in the Pegasus I Cluster
• Atmospheric Extinction Coefficients and Night Sky Brightness At the Xuyi Observational Station
• Low and High Surface Brightness Galaxies at Void Walls
• Pattern recognition in the ALFALFA.70 and Sloan Digital Sky Surveys: A catalog of $\sim$ 500,000 HI gas fraction estimates based on artificial neural networks
• Stellar Systems in the direction of the Hickson Compact Group 44 - I. Low Surface Brightness Galaxies
• Faint Dwarf Galaxies in Hickson Compact Group 90
• Another look at the size of the low-surface brightness galaxy VCC 1661 in the Virgo Cluster

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• The distribution of dark matter in galaxies
• The origin of ultra diffuse galaxies: stellar feedback and quenching
• The Formation of Ultra Diffuse Galaxies in Cored Dark Matter Halos Through Tidal Stripping and Heating
• Formation of ultra-diffuse galaxies in the field and in galaxy groups
• The Next Generation Fornax Survey (NGFS): II. The Central Dwarf Galaxy Population
• The globular cluster systems of 54 Coma ultra-diffuse galaxies: statistical constraints from HST data
• Systematically Measuring Ultra Diffuse Galaxies (SMUDGes). I. Survey Description and First Results in the Coma Galaxy Cluster and Environs
• Origins of ultra-diffuse galaxies in the Coma cluster II. Constraints from their stellar populations
• The ultra-diffuse galaxy NGC 1052-DF2 with MUSE: II. The population of DF2: stars, clusters and planetary nebulae
• Ultra-diffuse galaxies in the Auriga simulations
• A model for core formation in dark matter haloes and ultra diffuse galaxies by outflow episodes
• Ultra diffuse galaxies in the MATLAS low-to-moderate density fields
• Origins of ultra-diffuse galaxies in the Coma cluster - I. Constraints from velocity phase-space
• The Stellar Populations of Two Ultra-Diffuse Galaxies from Optical and Near-infrared Photometry
• Atomic Gas in Blue Ultra Diffuse Galaxies around Hickson Compact Groups
• The first detection of ultra-diffuse galaxies in the Hydra I cluster from VEGAS survey
• Origin and evolution of ultra-diffuse galaxies in different environments
• One hundred SMUDGes in S-PLUS: ultra-diffuse galaxies flourish in the field
• The Halos and Environments of Nearby Galaxies (HERON) I: Imaging, Sample Characteristics, and Envelope Diameters
• Systematically Measuring Ultra-Diffuse Galaxies (SMUDGes). II. Expanded Survey Description and the Stripe 82 Catalog
• Systematically Measuring Ultra Diffuse Galaxies in HI: Results from the Pilot Survey
• The environment of HI-bearing ultra diffuse galaxies in the ALFALFA survey
• The Third Data Release of the Beijing-Arizona Sky Survey
• The Nature of Ultra-diffuse Galaxies in Distant Massive Galaxy Clusters: Abell 370 in the Hubble Frontier Fields
• Probing the radial acceleration relation and the strong equivalence principle with the Coma cluster ultra-diffuse galaxies
• Disturbed, diffuse, or just missing? A global study of the HI content of Hickson Compact Groups
• Edge-on HI-bearing ultra diffuse galaxy candidates in the 40% ALFALFA catalog
• Long Tidal Tails in Merging Galaxies and Their Implications
• MHD study of planetary magnetospheric response during extreme solar wind conditions: Earth and exoplanet magnetospheres applications
• HI observations of the MATLAS dwarf and ultra-diffuse galaxies
• Formation of an ultra-diffuse galaxy in the stellar filaments of NGC3314A: caught in act?
• Discussing the first velocity dispersion profile of an ultra-diffuse galaxy in MOND
• Cosmic Pathways for Compact Groups in the Milli-Millennium Simulation
• HIPASS study of southern ultradiffuse galaxies and low surface brightness galaxies
• Stellar systems in the direction of Pegasus I - I. Low surface brightness galaxies
• The dynamical lineage of field ultra-diffuse galaxies
• A Tale of NGC 3785: The Formation of an Ultra-Diffuse Galaxy at the end of the Longest Tidal Tail
• Ultra Diffuse Galaxies in clusters : the peculiar gas loss of VCC 1964
• The dynamical lineage of ultra-diffuse galaxies from TNG50-1