J/A+A/694/A216 Catalog of Coma cluster members (Jimenez-Teja+, 2025)
Deep view of the intracluster light in the Coma cluster of galaxies.
Jimenez-Teja Y., Roman J., HyeongHan K., Vilchez J.M., Dupke R.A.,
Lopes P.A.A., Rich R.M., Caceres O., Li C.
<Astron. Astrophys. 694, A216 (2025)>
=2025A&A...694A.216J 2025A&A...694A.216J (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Redshifts
Keywords: galaxies: clusters: general - galaxies: interactions -
galaxies: kinematics and dynamics
Abstract:
Detection and study of the intracluster light in rich clusters of
galaxies has been a problem of long standing challenge and interest.
Using the lowest surface brightness images of the Coma cluster of
galaxies in the g and r bands, from the Halos and Environment of
Nearby Galaxies (HERON) Coma Cluster Project, we obtained the most
extensive image of intracluster light (ICL) in a single cluster to
date, spreading over 1.5Mpc from the cluster core. The unprecedented
wealth of spectroscopic data made publicly available by the Dark
Energy Spectroscopic Instrument (DESI) Early Data Release,
complemented with a compilation from the NASA/IPAC Extragalactic
Database and the literature, enabled the identification of 2157
galaxy members within Coma, from which 42 distinct groups were
identified. The synergy between these high-quality data allowed us
to: 1) calculate ICL fractions of 19.9±0.5% and 19.6±0.6% in the
g and r bands, respectively, consistent with a dynamically active
cluster, 2) unveil Coma's faintest tidal features, and 3) provide a
comprehensive picture of the dynamics and interactions within this
complex system. Our findings indicate that the ICL connects several of
these groups in a filamentous network, from which we infer the ongoing
dynamical processes. In particular, we identified a faint stellar
bridge linking the core of Coma with the galaxy NGC 4839, providing
compelling evidence that this galaxy has already traversed the central
region of the cluster.
Description:
Catalog with 2157 galaxy members of the Coma cluster of galaxies,
identified within a radius of ∼3.8Mpc around the cluster center. Members
were identified by applying the caustic technique to a set of spectroscopic
redshifts compiled from the Dark Energy Spectroscopic Instrument (DESI)
Early Data Release, the NASA/IPAC Extragalactic Database, the Sloan Digital
Sky Survey Data Release 13 and Healy et al. (2021A&A...650A..76H 2021A&A...650A..76H,
Cat. J/A+A/650/A76).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 28 2157 Catalog of Coma galaxies within a radius of
∼3.8Mpc around the cluster center,
galaxy coordinates and spectroscopic redshifts
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See also:
J/A+A/650/A76 : HI content in Coma cluster substructure (Healy+, 2021)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 10 F10.6 deg RAdeg Right ascension (J2000.0)
12- 20 F9.6 deg DEdeg Declination (J2000.0)
22- 28 F7.5 --- z Spectroscopic redshift
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Acknowledgements:
Yolanda Jimenez-Teja, yojite(at)iaa.es
(End) Patricia Vannier [CDS] 25-Dec-2024