2025A&A...703A.184S

Query : 2025A&A...703A.184S

2025A&A...703A.184S - Astronomy and Astrophysics, volume 703A184 (2025/11-1)

Euclid: Early Release Observations - Interplay between dwarf galaxies and their globular clusters in the Perseus galaxy cluster.

SAIFOLLAHI T., LANCON A., CANTIELLO M., CUILLANDRE J.-C., BETHERMIN M., CAROLLO D., DUC P.-A., FERRE-MATEU A., HATCH N.A., HILKER M., HUNT L.K., MARLEAU F.R., ROMAN J., SANCHEZ-JANSSEN R., TORTORA C., URBANO M., VOGGEL K., BOLZONELLA M., BOUY H., KLUGE M., SCHIRMER M., STONE C., GIOCOLI C., KNAPEN J.H., LE M.N., MONDELIN M., POULAIN M., AGHANIM N., ALTIERI B., ANDREON S., AURICCHIO N., BACCIGALUPI C., BAGOT D., BALDI M., BALESTRA A., BARDELLI S., BASSET A., BATTAGLIA P., BIVIANO A., BONCHI A., BONINO D., BON W., BRANCHINI E., BRESCIA M., BRINCHMANN J., CAMERA S., 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., DOLE H., DOUSPIS M., DUBATH F., DUNCAN C.A.J., DUPAC X., DUSINI S., ESCOFFIER S., FARINA M., FARINELLI R., FAUSTINI F., FERRIOL S., FOTOPOULOU S., FRAILIS M., FRANCESCHI E., FUMANA M., GALEOTTA S., GEORGE K., GILLIS B., GRACIA-CARPIO J., GRAZIAN A., GRUPP F., HAUGAN S.V.H., HOAR J., HOEKSTRA H., HOLMES W., HOOK I.M., HORMUTH F., HORNSTRUP A., JAHNKE K., JHABVALA M., KEIHANEN E., KERMICHE S., KIESSLING A., KUBIK B., KUMMEL M., KUNZ M., KURKI-SUONIO H., LAHAV O., LAUREIJS R., LE BRUN A.M.C., LE MIGNANT D., LIGORI S., LILJE P.B., LINDHOLM V., LLORO I., MAINO D., MAIORANO E., MANSUTTI O., MARGGRAF O., MARTINELLI M., MARTINET N., MARULLI F., MASSEY R., MAUROGORDATO S., MEDINACELI E., MEI S., MELLIER Y., MENEGHETTI M., MERLIN E., MEYLAN G., MORA A., MORESCO M., MOSCARDINI L., NAKAJIMA R., NEISSNER 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., SAGLIA R., SAKR Z., SANCHEZ A.G., SAPONE D., SARTORIS B., SCHEWTSCHENKO J.A., SCHNEIDER P., SCHRABBACK T., 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., TSYGANOV A., 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., MARTIN-FLEITAS J. and SCOTTEZ V.

Abstract (from CDS):

We present an analysis of globular clusters (GCs) of dwarf galaxies in the Perseus galaxy cluster that explores the relationship between dwarf galaxy properties and their GCs. Our focus is on GC numbers (NGC) and GC half-number radii (RGC) around dwarf galaxies, and their relations with host galaxy stellar masses (M*), central surface brightnesses (μ0), and effective radii (Re). This work is unique due to its large sample size and the absence of pre-selection based on μ0 and RGC for dwarf galaxies. Interestingly, we find that at a given stellar mass, RGC is almost independent of the host galaxy μ0 and Re, while RGC/Re depends on μ0 and Re. Lower surface brightness and diffuse dwarf galaxies show RGC/Re ≈ 1, while higher surface brightness and compact dwarf galaxies show RGC/Re ≈ 1.5-2. This means that for dwarf galaxies of similar stellar mass, the GCs have a similar median extent; however, their distribution is different from the field stars of their host. Additionally, low surface brightness and diffuse dwarf galaxies on average have a higher NGC than high surface brightness and compact dwarf galaxies at any given stellar mass. We also find that ultra-diffuse galaxies (UDGs) and non-UDGs in the sample have a similar RGC, while UDGs have a smaller RGC/Re (typically less than one) and a three to four times higher NGC than non-UDGs. Furthermore, when examining nucleated versus non-nucleated dwarf galaxies, we found that for M* > 108 M⊙, nucleated dwarf galaxies seem to have a smaller RGC and RGC/Re, with no significant differences seen between their NGC except at M* < 108 M⊙, where the nucleated dwarf galaxies tend to have a higher NGC. Lastly, we explored the stellar-to-halo mass ratio (SHMR) of dwarf galaxies (halo mass based on NGC) and conclude that the Perseus cluster dwarf galaxies follow the expected SHMR at z = 0 extrapolated down to M* = 106 M⊙.

Abstract Copyright: © The Authors 2025

Journal keyword(s): methods: observational - techniques: photometric - galaxies: dwarf - galaxies: clusters: individual: Perseus - galaxies: star clusters: general

VizieR on-line data: <Available at CDS (J/A+A/703/A184): tablea2.dat>

Status at CDS : Tables of objects will be appraised for possible ingestion in SIMBAD.

Simbad objects: 10

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Number of rows : 10
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 PUDG R84 LSB 03 17 24.90 +41 44 21.4           ~ 13 0
2 ACO 426 ClG 03 19 47.6 +41 30 54           ~ 2508 1
3 NAME Fornax-Eridanus Supercluster SCG 03 31 -32.3           ~ 16 0
4 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 2029 0
5 NAME HYA SUPERCL SCG 08 57.9 +03 10           ~ 204 0
6 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
7 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
8 SMDG J1300580+265835 LSB 13 00 57.996 +26 58 34.72     19.37 18.43   ~ 145 0
9 GMP 2175 LSB 13 01 15.845 +27 12 38.62     19.41 18.58   ~ 47 0
10 SDSS J150520.28+014846.6 LSB 15 05 20.28768 +01 48 46.6111       17.81   ~ 46 0

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