Euclid: Early Release Observations of ram-pressure stripping in the Perseus cluster. Detection of parsec scale star formation with in the low surface brightness stripped tails of UGC 2665 and MCG +07-07-070
Euclid: Early Release Observations of ram-pressure stripping in the Perseus cluster. Detection of parsec scale star formation with in the low surface brightness stripped tails of UGC 2665 and MCG +07-07-070
Euclid is delivering optical and near-infrared imaging data over 14,000 deg$^2$ on the sky at spatial resolution and surface brightness levels that can be used to understand the morphological transformation of galaxies within groups and clusters. Using the Early Release Observations (ERO) of the Perseus cluster, we demonstrate the capability offered by Euclid in studying the nature of perturbations for galaxies in clusters. Filamentary structures are observed along the discs of two spiral galaxies with no extended diffuse emission expected from tidal interactions at surface brightness levels of $\sim$ $30\,{\rm mag}\,{\rm arcsec}^{-2}$. The detected features exhibit a good correspondence in morphology between optical and near-infrared wavelengths, with a surface brightness of $\sim$ $25\,{\rm mag}\,{\rm arcsec}^{-2}$, and the knots within the features have sizes of $\sim$ 100 pc, as observed through $I_E$ imaging. Using the Euclid, CFHT, UVIT, and LOFAR $144\,{\rm MHz}$ radio continuum observations, we conduct a detailed analysis to understand the origin of the detected features. We constructed the \textit{Euclid} $I_E-Y_E$, $Y_E-H_E$, and CFHT $u - r$, $g - i$ colour-colour plane and showed that these features contain recent star formation events, which are also indicated by their H$\alpha$ and NUV emissions. Euclid colours alone are insufficient for studying stellar population ages in unresolved star-forming regions, which require multi-wavelength optical imaging data. The morphological shape, orientation, and mean age of the stellar population, combined with the presence of extended radio continuum cometary tails can be consistently explained if these features have been formed during a recent ram-pressure stripping event. This result further confirms the exceptional qualities of Euclid in the study of galaxy evolution in dense environments.
P. Schneider、G. Seidel、G. Sirri、L. Stanco、M. Seiffert、S. Serrano、C. Sirignano、J. Steinwagner、P. Tallada-Crespí、G. Verdoes Kleijn、A. Veropalumbo、Y. Wang、J. Weller、G. Zamorani、F. M. Zerbi、E. Zucca、C. Burigana、L. Gabarra、J. Martín-Fleitas、V. Scottez、D. Maino、E. Maiorano、O. Mansutti、O. Marggraf、K. Markovic、M. Martinelli、N. Martinet、F. Marulli、R. Massey、S. Maurogordato、E. Medinaceli、S. Mei、Y. Mellier、M. Meneghetti、E. Merlin、G. Meylan、J. J. Mohr、A. Mora、M. Moresco、L. Moscardini、R. Nakajima、C. Neissner、R. C. Nichol、S. -M. Niemi、J. W. Nightingale、C. Padilla、Koshy George、A. Boselli、J. -C. Cuillandre、M. Kümmel、A. Lan?on、C. Bellhouse、T. Saifollahi、M. Mondelin、M. Bolzonella、P. Joseph、I. D. Roberts、R. J. van Weeren、Q. Liu、E. Sola、M. Urbano、M. Baes、R. F. Peletier、M. Klein、C. T. Davies、I. A. Zinchenko、J. G. Sorce、M. Poulain、N. Aghanim、B. Altieri、A. Amara、S. Andreon、N. Auricchio、C. Baccigalupi、M. Baldi、A. Balestra、S. Bardelli、P. Battaglia、A. Biviano、D. Bonino、E. Branchini、M. Brescia、J. Brinchmann、S. Camera、G. Ca?as-Herrera、V. Capobianco、C. Carbone、J. Carretero、S. Casas、M. Castellano、S. Ligori、G. Castignani、S. Cavuoti、K. C. Chambers、A. Cimatti、C. Colodro-Conde、G. Congedo、C. J. Conselice、L. Conversi、Y. Copin、F. Courbin、H. M. Courtois、M. Cropper、A. Da Silva、H. Degaudenzi、G. De Lucia、A. M. Di Giorgio、H. Dole、M. Douspis、F. Dubath、X. Dupac、S. Dusini、S. Escoffier、M. Farina、F. Faustini、S. Ferriol、S. Fotopoulou、M. Frailis、E. Franceschi、S. Galeotta、B. Gillis、C. Giocoli、J. Gracia-Carpio、A. Grazian、F. Grupp、S. V. H. Haugan、W. Holmes、I. M. Hook、F. Hormuth、A. Hornstrup、P. Hudelot、K. Jahnke、M. Jhabvala、E. Keih?nen、S. Kermiche、A. Kiessling、B. Kubik、M. Kunz、H. Kurki-Suonio、A. M. C. Le Brun、D. Le Mignant、P. B. Lilje、V. Lindholm、I. Lloro、G. Mainetti、S. Paltani、F. Pasian、K. Pedersen、W. J. Percival、V. Pettorino、S. Pires、G. Polenta、M. Poncet、L. A. Popa、L. Pozzetti、F. Raison、R. Rebolo、A. Renzi、J. Rhodes、G. Riccio、E. Romelli、M. Roncarelli、E. Rossetti、R. Saglia、Z. Sakr、D. Sapone、B. Sartoris、J. A. Schewtschenko、M. Schirmer、A. Secroun、A. N. Taylor、I. Tereno、S. Toft、R. Toledo-Moreo、F. Torradeflot、I. Tutusaus、E. A. Valentijn、L. Valenziano、J. Valiviita、T. Vassallo
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Albareda s/n, 08193 BellaterraInstitut de Recherche en Astrophysique et PlanétologieKapteyn Astronomical Institute, University of Groningen, PO Box 800, 9700 AV Groningen, The NetherlandsINAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Via Piero Gobetti 93/3, 40129 Bologna, ItalyDepartment of Physics, P.O. Box 64, 00014 University of Helsinki, FinlandUniversit?ts-Sternwarte München, Fakult?t für Physik, Ludwig-Maximilians-Universit?t München, Scheinerstrasse 1, 81679 München, Germany
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P. Schneider,G. Seidel,G. Sirri,L. Stanco,M. Seiffert,S. Serrano,C. Sirignano,J. Steinwagner,P. Tallada-Crespí,G. Verdoes Kleijn,A. Veropalumbo,Y. Wang,J. Weller,G. Zamorani,F. M. Zerbi,E. Zucca,C. Burigana,L. Gabarra,J. Martín-Fleitas,V. Scottez,D. Maino,E. Maiorano,O. Mansutti,O. Marggraf,K. Markovic,M. Martinelli,N. Martinet,F. Marulli,R. Massey,S. Maurogordato,E. Medinaceli,S. Mei,Y. Mellier,M. Meneghetti,E. Merlin,G. Meylan,J. J. Mohr,A. Mora,M. Moresco,L. Moscardini,R. Nakajima,C. Neissner,R. C. Nichol,S. -M. Niemi,J. W. Nightingale,C. Padilla,Koshy George,A. Boselli,J. -C. Cuillandre,M. Kümmel,A. Lan?on,C. Bellhouse,T. Saifollahi,M. Mondelin,M. Bolzonella,P. Joseph,I. D. Roberts,R. J. van Weeren,Q. Liu,E. Sola,M. Urbano,M. Baes,R. F. Peletier,M. Klein,C. T. Davies,I. A. Zinchenko,J. G. Sorce,M. Poulain,N. Aghanim,B. Altieri,A. Amara,S. Andreon,N. Auricchio,C. Baccigalupi,M. Baldi,A. Balestra,S. Bardelli,P. Battaglia,A. Biviano,D. Bonino,E. Branchini,M. Brescia,J. Brinchmann,S. Camera,G. Ca?as-Herrera,V. Capobianco,C. Carbone,J. Carretero,S. Casas,M. Castellano,S. Ligori,G. Castignani,S. Cavuoti,K. C. Chambers,A. Cimatti,C. Colodro-Conde,G. Congedo,C. J. Conselice,L. Conversi,Y. Copin,F. Courbin,H. M. Courtois,M. Cropper,A. Da Silva,H. Degaudenzi,G. De Lucia,A. M. Di Giorgio,H. Dole,M. Douspis,F. Dubath,X. Dupac,S. Dusini,S. Escoffier,M. Farina,F. Faustini,S. Ferriol,S. Fotopoulou,M. Frailis,E. Franceschi,S. Galeotta,B. Gillis,C. Giocoli,J. Gracia-Carpio,A. Grazian,F. Grupp,S. V. H. Haugan,W. Holmes,I. M. Hook,F. Hormuth,A. Hornstrup,P. Hudelot,K. Jahnke,M. Jhabvala,E. Keih?nen,S. Kermiche,A. Kiessling,B. Kubik,M. Kunz,H. Kurki-Suonio,A. M. C. Le Brun,D. Le Mignant,P. B. Lilje,V. Lindholm,I. Lloro,G. Mainetti,S. Paltani,F. Pasian,K. Pedersen,W. J. Percival,V. Pettorino,S. Pires,G. Polenta,M. Poncet,L. A. Popa,L. Pozzetti,F. Raison,R. Rebolo,A. Renzi,J. Rhodes,G. Riccio,E. Romelli,M. Roncarelli,E. Rossetti,R. Saglia,Z. Sakr,D. Sapone,B. Sartoris,J. A. Schewtschenko,M. Schirmer,A. Secroun,A. N. Taylor,I. Tereno,S. Toft,R. Toledo-Moreo,F. Torradeflot,I. Tutusaus,E. A. Valentijn,L. Valenziano,J. Valiviita,T. Vassallo.Euclid: Early Release Observations of ram-pressure stripping in the Perseus cluster. Detection of parsec scale star formation with in the low surface brightness stripped tails of UGC 2665 and MCG +07-07-070[EB/OL].(2025-05-28)[2025-06-26].https://arxiv.org/abs/2505.23342.点此复制
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