A galaxy cluster in the innermost Zone of Avoidance, close to the radio phoenix VLSSJ2217.5+594

Abstract

The steep spectrum radio source VLSSJ2217.5+5943 shows a complex, filamentary morphology and a curved spectrum. Therefore, the source has previously been classified as a radio phoenix. However, no galaxy cluster associated with this radio source has been confidently detected so far because the source is located in the direction of the innermost zone of the Galactic Plane at b = +2.4 degr (innermost Zone of Avoidance, ZoA). We analysed archival observations in the near infrared (UKIDSS) and mid infrared (Spitzer) to select the galaxies in the immediate neighbourhood of the radio source. A sample of 23 galaxies was selected as candidate cluster members. Furthermore, we carried out deep integral field spectroscopy covering 6450 to 10500 AA with the red unit of the Hobby-Eberly Telescope second generation low resolution spectrograph (LRS2-R). We also reanalysed archival GMRT observations at 325 and 610 MHz. We selected 23 galaxies within a radius of 2.5 arcmin, centered on RA=22:17.5, DEC=+59:43 (J2000). Spectra were obtained for three of the brightest galaxies. For two galaxies we derived redshifts of z = 0.165 and z = 0.161, based on NaD absorption and TiO band heads. Their spectra correspond to E-type galaxies. Both galaxies are spatially associated with VLSSJ2217.5+5943. The spectrum of the third galaxy, which is slightly more distant from the radio source, indicates a LINER at z = 0.042. It is apparently a foreground galaxy with respect to the cluster we identified. VLSSJ2217.5+5943 is associated with a massive galaxy cluster at redshift z = 0.163 +- .003, supporting its classification as radio phoenix.

arXiv comment12 pages, 11 figures, Astronomy & Astrophysics in press

References in corpus (46)

• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• The Host Galaxies of AGN
• The Infrared Array Camera (IRAC) for the Spitzer Space Telescope
• The Spitzer Space Telescope Mission
• Theoretical Modeling of Starburst Galaxies
• The UKIRT Infrared Deep Sky Survey (UKIDSS)
• Spectroscopic Target Selection in the Sloan Digital Sky Survey: The Main Galaxy Sample
• Mid-Infrared Selection of Active Galaxies
• Spectral Energy Distributions of Hard X-ray selected AGNs in the XMDS Survey
• The GMRT 150 MHz All-sky Radio Survey: First Alternative Data Release TGSS ADR1
• The Wavelength Dependence of Interstellar Extinction from 1.25 to 8.0 microns Using GLIMPSE Data
• The Connection between Galaxies and their Dark Matter Halos
• The UKIRT Infrared Deep Sky Survey ZYJHK Photometric System: Passbands and Synthetic Colours
• The Luminosity Function of Galaxies in SDSS Commissioning Data
• A concise reference to (projected) Sersic R^{1/n} quantities, including Concentration, Profile Slopes, Petrosian indices, and Kron Magnitudes
• The Pan-STARRS1 Database and Data Products
• Identifying Luminous AGN in Deep Surveys: Revised IRAC Selection Criteria
• The UKIDSS Galactic Plane Survey
• The WFCAM Science Archive
• Ionospheric Calibration of Low Frequency Radio Interferometric Observations using the Peeling Scheme: I. Method Description and First Results
• ZAP -- Enhanced PCA Sky Subtraction for Integral Field Spectroscopy
• Near-IR Properties of Galaxy Clusters: Luminosity as a Binding Mass Predictor and the State of Cluster Baryons
• The Very Large Array Low-frequency Sky Survey Redux (VLSSr)
• The (black hole mass)-(host spheroid luminosity) relation at high and low masses, the quadratic growth of black holes, and intermediate-mass black hole candidates
• The UKIRT Infrared Deep Sky Survey Early Data Release
• A universal ultraviolet-optical colour-colour-magnitude relation of galaxies
• The Mid-Infrared Extinction Law in the Ophiuchus, Perseus, and Serpens Molecular Clouds
• The Second Data Release of the INT Photometric H-Alpha Survey of the Northern Galactic Plane (IPHAS DR2)
• Substructure and dynamical state of 2092 rich clusters of galaxies derived from photometric data
• Mapping Large-Scale Structures Behind the Galactic Plane: The Second CIZA Subsample
• The Local Hole in the Galaxy Distribution: Evidence from 2MASS
• Search and modelling of remnant radio galaxies in the LOFAR Lockman Hole field
• A search for steep spectrum radio relics and halos with the GMRT
• Stellar mass as a galaxy cluster mass proxy: application to the Dark Energy Survey redMaPPer clusters
• A low-scatter survey-based mass proxy for clusters of galaxies
• Diffuse steep-spectrum sources from the 74 MHz VLSS survey
• The 2MASS Redshift Survey in the Zone of Avoidance
• The 2MASS redshift survey galaxy group catalogue derived from a graph-theory based friends-of-friends algorithm
• The Nancay HI Zone of Avoidance survey of 2MASS bright galaxies
• Cosmological Structures behind the Milky Way
• The K-band luminosity functions of cluster galaxies
• The XXL Survey X: K-band luminosity - weak-lensing mass relation for groups and clusters of galaxies
• EZOA -- A catalogue of EBHIS HI detected galaxies in the northern Zone of Avoidance
• Relative distribution of dark matter and stellar mass in three massive galaxy clusters
• A Zone of Avoidance catalogue of 2MASS bright galaxies. I. Sample description and analysis
• Radio and near-infrared observations of the steep spectrum Galactic plane radio source WKB 0314+57.8

Cited by in corpus (1)

• Multi-wavelength insights into the pulsar wind nebula candidate near 1LHAASO J0343+5254u: an obscured merging galaxy cluster?