2025A&A...701A..40G

Query : 2025A&A...701A..40G

2025A&A...701A..40G - Astronomy and Astrophysics, volume 701A40 (2025/9-1)

Euclid: Early Release Observations of ram-pressure stripping in the Perseus cluster Detection of parsec-scale star formation within the low surface brightness stripped tails of UGC 2665 and MCG +07-07-070.

GEORGE K., BOSELLI A., CUILLANDRE J.-C., KUMMEL M., LANCON A., BELLHOUSE C., SAIFOLLAHI T., MONDELIN M., BOLZONELLA M., JOSEPH P., ROBERTS I.D., VAN WEEREN R.J., LIU Q., SOLA E., URBANO M., BAES M., PELETIER R.F., KLEIN M., DAVIES C.T., ZINCHENKO I.A., SORCE J.G., POULAIN M., AGHANIM N., ALTIERI B., AMARA A., ANDREON S., AURICCHIO N., BACCIGALUPI C., BALDI M., BALESTRA A., BARDELLI S., BATTAGLIA P., BIVIANO A., BONINO D., BRANCHINI E., BRESCIA M., BRINCHMANN J., CAMERA S., CANAS-HERRERA G., CAPOBIANCO V., CARBONE C., CARRETERO J., CASAS S., CASTELLANO M., CASTIGNANI G., CAVUOTI S., CHAMBERS K.C., CIMATTI A., COLODRO-CONDE C., CONGEDO G., CONSELICE C.J., CONVERSI L., COPIN Y., COURBIN F., COURTOIS H.M., CROPPER M., DA SILVA A., DEGAUDENZI H., DE LUCIA G., DI GIORGIO A.M., DOLE H., DOUSPIS M., DUBATH F., DUPAC X., DUSINI S., ESCOFFIER S., FARINA M., FAUSTINI F., FERRIOL S., FOTOPOULOU S., FRAILIS M., FRANCESCHI E., GALEOTTA S., GILLIS B., GIOCOLI C., GRACIA-CARPIO J., GRAZIAN A., GRUPP F., HAUGAN S.V.H., HOLMES W., HOOK I.M., HORMUTH F., HORNSTRUP A., HUDELOT P., JAHNKE K., JHABVALA M., KEIHANEN E., KERMICHE S., KIESSLING A., KUBIK B., KUNZ M., KURKI-SUONIO H., LE BRUN A.M.C., 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., MAUROGORDATO S., MEDINACELI E., MEI S., MELLIER Y., MENEGHETTI M., MERLIN E., MEYLAN G., MOHR J.J., MORA A., MORESCO M., MOSCARDINI L., NAKAJIMA R., NEISSNER C., NICHOL R.C., NIEMI S.-M., NIGHTINGALE J.W., 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., SCHEWTSCHENKO J.A., SCHIRMER M., SCHNEIDER P., SECROUN A., SEIDEL G., SEIFFERT M., SERRANO S., SIRIGNANO C., SIRRI G., STANCO L., STEINWAGNER J., TALLADA-CRESPI P., TAYLOR A.N., TERENO I., TOFT S., TOLEDO-MOREO R., TORRADEFLOT F., TUTUSAUS I., VALENTIJN E.A., VALENZIANO L., VALIVIITA J., VASSALLO T., VERDOES KLEIJN G., VEROPALUMBO A., WANG Y., WELLER J., ZAMORANI G., ZERBI F.M., ZUCCA E., BURIGANA C., GABARRA L., MARTIN-FLEITAS J. and SCOTTEZ V.

Abstract (from CDS):

Euclid is delivering optical and near-infrared imaging data over 14 000 deg2 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, UGC 2665 and MCG +07-07-070, with no extended diffuse emission expected from tidal interactions at surface brightness levels of ∼30 mag arcsec–2. The detected features exhibit a good correspondence in morphology between optical and near-infrared wavelengths, with a surface brightness of ∼25 mag arcsec–2, and the knots within the features have sizes of ∼ 100 pc, as observed through IE imaging. Using the Euclid, CFHT, UVIT, and LOFAR 144 MHz radio continuum observations, we conducted a detailed analysis to understand the origin of the detected features. We constructed the EuclidIE-YE, YE-HE, and CFHT u - r, g - i colour-colour plane and show that these features contain recent star formation events, which are also indicated by their Hα 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. There are features with red colours that can be explained by dust being stripped along with the gas in these regions. 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 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.

Abstract Copyright: © The Authors 2025

Journal keyword(s): galaxies: clusters: intracluster medium - galaxies: evolution - galaxies: spiral - galaxies: star formation

Simbad objects: 18

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Number of rows : 18
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 51 GiG 00 14 34.9106443080 +48 15 19.864154520   14.6       ~ 29 0
2 Z 500-67 GiG 00 41 03.647 +31 43 57.63   14.6       ~ 57 0
3 2MASX J03163390+4201325 GiC 03 16 33.994 +42 01 32.94           ~ 12 0
4 PUDG R24 LSB 03 18 35.59 +41 48 32.0           ~ 6 0
5 Z 540-90 GiC 03 18 43.0903668552 +42 18 02.454074712   14.6       ~ 40 0
6 WISEA J031848.10+412622.8 G 03 18 48.1074 +41 26 22.877           ~ 1 0
7 2MASS J03191776+4138396 GiG 03 19 17.7589796040 +41 38 39.596867844   13.6 13.6     ~ 35 0
8 Z 540-100 GiG 03 19 27.3827188680 +41 38 06.965180664   15.5   13.58   ~ 39 0
9 2MASX J03193743+4137580 GiC 03 19 37.4675587248 +41 37 58.319132232   16.0       ~ 23 0
10 LEDA 2181376 GiC 03 19 43.8180907536 +41 27 25.144042356           ~ 21 0
11 ACO 426 ClG 03 19 47.6 +41 30 54           ~ 2508 1
12 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
13 NGC 1281 GiG 03 20 06.1143914448 +41 37 47.945857692   15.0       ~ 65 0
14 MCG+07-07-070 GiC 03 20 22.025 +41 38 26.48   15       ~ 23 0
15 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
16 NGC 4522 GiG 12 33 39.657 +09 10 29.54   13.6       ~ 396 0
17 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
18 NGC 4921 Sy2 13 01 26.1222244152 +27 53 09.629006748   13.7       ~ 225 0

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