The XXL Survey: XXII. The XXL-North spectrophotometric sample and galaxy stellar mass function in X-ray detected groups and clusters
- Guglielmo, V.
- Poggianti, B. M.
- Vulcani, B.
- Adami, C.
- Gastaldello, F.
- Ettori, S.
- Fotoupoulou, S.
- Koulouridis, E.
- Ramos Ceja, M. E.
- Giles, P.
- Mcgee, S.
- Altieri, B.
- Baldry, I.
- Birkinshaw, M.
- Bolzonella, M.
- Bongiorno, A.
- Brown, M.
- Chiappetti, L.
- Driver, S.
- Elyiv, A.
- Evrard, A.
- Garilli, B.
- Grootes, M.
- Guennou, L.
- Hopkins, A.
- Horellou, C.
- Iovino, A.
- Lidman, C.
- Liske, J.
- Maurogordato, S.
- Owers, M.
- Pacaud, F.
- Paltani, S.
- Pierre, M.
- Plionis, M.
- Ponman, T.
- Robotham, A.
- Sadibekova, T.
- Scodeggio, M.
- Sereno, M.
- Smolčić, V.
- Tuffs, R.
- Valtchanov, I.
- Vignali, C.
- Willis, J.
DOIAbstract
International audienceContext. The fraction of galaxies bound in groups in the nearby Universe is high (50% at z 0). Systematic studies of galaxy properties in groups are important in order to improve our understanding of the evolution of galaxies and of the physical phenomena occurring within this environment. Aims: We have built a complete spectrophotometric sample of galaxies within X-ray detected, optically spectroscopically confirmed groups and clusters (G&C), covering a wide range of halo masses at z ≤ 0.6. Methods: In the context of the XXL survey, we analyse a sample of 164 G&C in the XXL-North region (XXL-N), at z ≤ 0.6, with a wide range of virial masses (1.24 × 1013 ≤ M500,scal(M⊙) ≤ 6.63 × 1014) and X-ray luminosities ((2.27 ×...
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