Faint LSB galaxy cand. in Perseus cluster

DOI

We present the detection of 89 low surface brightness (LSB), and thus low stellar density galaxy candidates in the Perseus cluster core, of the kind named 'ultra-diffuse galaxies', with mean effective V-band surface brightnesses 24.8-27.1mag/arcsec^2^, total V-band magnitudes -11.8 to -15.5mag, and half-light radii 0.7-4.1kpc. The candidates have been identified in a deep mosaic covering 0.3deg^2^, based on wide-field imaging data obtained with the William Herschel Telescope. We find that the LSB galaxy population is depleted in the cluster centre and only very few LSB candidates have half-light radii larger than 3kpc. This appears consistent with an estimate of their tidal radius, which does not reach beyond the stellar extent even if we assume a high dark matter content (M/L=100). In fact, three of our candidates seem to be associated with tidal streams, which points to their current disruption. Given that published data on faint LSB candidates in the Coma cluster --with its comparable central density to Perseus-- show the same dearth of large objects in the core region, we conclude that these cannot survive the strong tides in the centres of massive clusters.

Cone search capability for table J/MNRAS/470/1512/table1 (*Coordinates and structure parameters of faint low surface brightness (LSB) galaxy candidates in the Perseus cluster core)

Identifier
DOI http://doi.org/10.26093/cds/vizier.74701512
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/MNRAS/470/1512
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/470/1512
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/470/1512
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/MNRAS/470/1512
Provenance
Creator Wittmann C.; Lisker T.; Ambachew Tilahun L.; Grebel E.K.; Conselice C.J.,Penny S.; Janz J.; Gallagher J.S.; Kotulla R.; Mccormac J.
Publisher CDS
Publication Year 2020
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Galactic and extragalactic Astronomy; Natural Sciences; Observational Astronomy; Physics