Euclid ERO Perseus cluster dwarfs

We make use of the unprecedented depth, spatial resolution, and field of view of the Euclid Early Release Observations (EROs) of the Perseus galaxy cluster to detect and characterise the dwarf galaxy population in this massive system. Using a dedicated annotation tool, the Euclid high resolution VIS and combined VIS+NIR colour images were visually inspected and dwarf galaxy candidates were identified. Their morphologies, the presence of nuclei, and their globular cluster (GC) richness were visually assessed, complementing an automatic detection of the GC candidates. Structural and photometric parameters, including Euclid filter colours, were extracted from 2-dimensional fitting. Based on this analysis, a total of 1100 dwarf candidates were found across the image, with 606 appearing to be new identifications. The majority (96%) are classified as dwarf ellipticals, 53% are nucleated, 26% are GC-rich, and 6% show disturbed morphologies. A relatively high fraction of galaxies, 8%, are categorised as ultra diffuse galaxies. The majority of the dwarfs follow the expected scaling relations of galaxies. Globally, the GC specific frequency, S_N_, of the Perseus dwarf candidates is intermediate between those measured in the Virgo and Coma clusters. While the dwarf candidates with the largest GC counts are found throughout the Euclid field of view, the dwarfs located around the east-west strip, where most of the brightest cluster members are found, exhibit larger S_N_ values, on average. The spatial distribution of the dwarfs, GCs, and intracluster light show a main iso-density/isophotal centre displaced to the west of the bright galaxy light distribution. The ERO imaging of the Perseus cluster demonstrates the unique capability of Euclid to concurrently detect and characterise large samples of dwarf galaxies, their nuclei, and their GC systems, allowing us to construct a detailed picture of the formation and evolution of galaxies over a wide range of mass scales and environments.

Cone search capability for table J/A+A/697/A12/tablea1 (Visual properties of the of dwarf galaxies candidates)

Cone search capability for table J/A+A/697/A12/tableb1 (Visual properties of the galaxies from our initial list of sources with a score below the threshold of 0.7 (corresponding to 5/7 classifiers))

Identifier
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/A+A/697/A12
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/697/A12
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/697/A12
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/A+A/697/A12
Provenance
Creator Marleau F.R.; Cuillandre J.-C.; Cantiello M.; Carollo D.; Duc P.-A.,Habas R.; Hunt L.K.; Jablonka P.; Mirabile M.; Mondelin M.; Poulain M.,Saifollahi T.; Sanchez-Janssen R.; Sola E.; Urbano M.; Zoller R.,Bolzonella M.; Lancon A.; Laureijs R.; Marchal O.; Schirmer M.; Stone C.,Boselli A.; Ferre-Mateu A.; Hatch N.A.; Kluge M.; Montes M.; Sorce J.G.,Venhola A.; Golden-Marx J.B.; Aghanim N.; Amara A.; Andreon S.,Auricchio N.; Baldi M.; Balestra A.; Bardelli S.; Bender R.; Bodendorf C.,Branchini E.; Brescia M.; Brinchmann J.; Camera S.; Candini G.P.,Capobianco V.; Carbone C.; Carretero J.; Casas S.; Castellano M.,Cavuoti S.; Cimatti A.; Congedo G.; Conselice C.J.; Conversi L.; Copin Y.,Courbin F.; Courtois H.M.; Cropper M.; Da Silva A.; Degaudenzi H.,Di Giorgio A.M.; Dinis J.; Douspis M.; Dupac X.; Dusini S.; Ealet A.,Farina M.; Farrens S.; Ferriol S.; Fosalba P.; Fotopoulou S.; Frailis M.,Franceschi E.; Fumana M.; Galeotta S.; Garilli B.; Gillard W.; Gillis B.,Giocoli C.; Gomez-Alvarez P.; Grazian A.; Grupp F.; Guzzo L.; Hailey M.,Haugan S.V.H.; Hoar J.; Hoekstra H.; Holmes W.; Hook I.; Hormuth F.,Hornstrup A.; Hu D.; Hudelot P.; Jahnke K.; Jhabvala M.; Keihanen E.,Kermiche S.; Kiessling A.; Kitching T.; Kohley R.; Kubik B.; Kummel M.,Kunz M.; Kurki-Suonio H.; Lahav O.; Le Mignant D.; Ligori S.; Lilje P.B.,Lindholm V.; Lloro I.; Maino D.; Maiorano E.; Mansutti O.; Marggraf O.,Markovic K.; Martinet N.; Marulli F.; Massey R.; Maurogordato S.,Medinaceli E.; Mei S.; Mellier Y.; Meneghetti M.; Merlin E.; Meylan G.,Moresco M.; Moscardini L.; Munari E.; Nakajima R.; Nichol R.C.; Niemi S.-M.,Padilla C.; Paltani S.; Pasian F.; Pedersen K.; Percival W.J.; Pettorino V.,Pires S.; Polenta G.; Poncet M.; Popa L.A.; Pozzetti L.; Raison F.,Rebolo R.; Refregier A.; Renzi A.; Rhodes J.; Riccio G.; Rix H.-W. ,Romelli E.; Roncarelli M.; Rossetti E.; Saglia R.; Sapone D.; Scaramella R.,Schneider P.; Secroun A.; Seidel G.; Seiffert M.; Serrano S.; Sirignano C.,Sirri G.; Stanco L.; Tallada-Crespi P.; Taylor A.N.; Teplitz H.I.,Tereno I.; Toledo-Moreo R.; Tsyganov A.; Tutusaus I.; Valentijn E.A.,Valenziano L.; Vassallo T.; Verdoes Kleijn G.; Veropalumbo A.; Wang Y.,Weller J.; Williams O.R.; Zamorani G.; Zucca E.; Baccigalupi C.; Biviano A.,Burigana C.; De Lucia G.; George K.; Scottez V.; Viel M.; Simon P.; Mora A.,Scott D.
Publisher CDS
Publication Year 2025
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