2026-07-30T21:17:10Zivo://CDS.VizieR/J/A+A/710/A2772026-06-29T00:10:34ZJ.A_AIVOAEuclid. ERO. Galaxy morphology and photometryThe background galaxies in Euclid Early Release Observations images of the Perseus cluster make up a remarkable sample in its combination of 0.57deg^2^ area, 25.3 and 23.2 AB mag depth, as well as 0.1" and 0.3" angular resolutions, in optical and near-IR bands, respectively. Towards characterising the history of the Hubble sequence, we perform a morphological analysis of 2445 and 12786 galaxies with I_E_<=21 and I_E_<23, respectively. We use single-Sersic profiles and the sums of a Sersic bulge and an exponential disc to model these galaxies with SourceXtractor++ and analyse their parameters in order to assess their consistencies and discrepancies. The fitted galaxies to I_E_<=21 span the various Hubble types with ubiquitous bulge and disc components, and a bulge-to-total light ratio B/T taking all values from 0 to 1. This analysis demonstrates the usefulness and limitations of single-Sersic profile modelling, and the power of bulge-disc decomposition for reliably characterising the morphology of lenticulars and spirals in Euclid images. We make available the catalogues of best-fit parameters for the morphological and SED fits.galaxiesvisible-astronomyinfrared-sourcesgalaxy-classification-systemsphotometrygalactic-and-extragalactic-astronomyobservational-astronomycosmologyhttps://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/A+A/710/A277https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/710/A2772026A&A...710A.277Qhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/710/A277Cone search capability for table J/A+A/710/A277/catser (Single-Sersic best-fit parameters (table A2))Cone search capability for table J/A+A/710/A277/catbd (SED best-fit parameters for the total (+bulge+disk) model magnitudes (table A1))Quilley L.de Lapparent V.Bolzonella M.Baes M.Damjanov I.,Haeussler B.Marleau F.R.Nersesian A.Saifollahi T.Scott D.,Sorce J.G.Tortora C.Urbano M.Aghanim N.Altieri B.Amara A.,Andreon S.Auricchio N.Baccigalupi C.Baldi M.Balestra A.,Bardelli S.Basset A.Battaglia P.Biviano A.Bonchi A.Bonino D.,Branchini E.Brescia M.Brinchmann J.Caillat A.Camera S.,Capobianco V.Carbone C.Carretero J.Casas S.Castellano M.,Castignani G.Cavuoti S.Cimatti A.Colodro-Conde C.Congedo G.,Conselice C.J.Conversi L.Copin Y.Courbin F.Courtois H.M.,Cropper M.Cuillandre J.-C.Da Silva A.Degaudenzi H.De Lucia G.,Di Giorgio A.M.Dinis J.Dubath F.Duncan C.A.J.Dupac X.Dusini S.,Ealet A.Farina M.Farrens S.Faustini F.Ferriol S.Fotopoulou S.,Frailis M.Franceschi E.Fumana M.Galeotta S.George K.Gillis B.,Giocoli C.Gomez-Alvarez P.Grazian A.Grupp F.Haugan S.V.H.Hoar J.,Holmes W.Hormuth F.Hornstrup A.Hudelot P.Jahnke K.Jhabvala M.,Keihaenen E.Kermiche S.Kiessling A.Kilbinger M.Kubik B.Kuijken K.,Kuemmel M.Kunz M.Kurki-Suonio H.Laureijs R.Le Mignant D.Ligori S.,Lilje P.B.Lindholm V.Lloro I.Mainetti G.Maino D.Maiorano E.,Mansutti O.Marggraf O.Markovic K.Martinelli M.Martinet N.,Marulli F.Massey R.Medinaceli E.Mei S.Melchior M.Mellier Y.,Meneghetti M.Merlin E.Meylan G.Mora A.Moresco M.Moscardini L.,Nakajima R.Neissner C.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.Renzi A.,Rhodes J.Riccio G.Romelli E.Roncarelli M.Rossetti E.Saglia R.,Sakr Z.Sapone D.Sartoris B.Schirmer M.Schneider P.Schrabback T.,Secroun A.Sefusatti E.Seidel G.Serrano S.Sirignano C.Sirri G.,Stanco L.Steinwagner J.Tallada-Crespi P.Taylor A.N.Tereno I.,Toledo-Moreo R.Torradeflot F.Tutusaus I.Valenziano L.Vassallo T.,Verdoes Kleijn G.Veropalumbo A.Wang Y.Weller J.Zamorani G.,Zucca E.Burigana C.Scottez V.CDS2026https://cds.unistra.fr/vizier-org/licences_vizier.htmlCDS support team <cds-question@unistra.fr>DatasetAstroObjectsastronomy