prikaz prve stranice dokumenta The XXL Survey. XXX. Characterisation of the XLSSsC N01 supercluster and analysis of the galaxy stellar populations
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Scientific paper - Original scientific paper
The XXL Survey. XXX. Characterisation of the XLSSsC N01 supercluster and analysis of the galaxy stellar populations
Astronomy and Astrophysics, 620 (2018); A15. https://doi.org/10.1051/0004-6361/201732507
Guglielmo, V.; Poggianti, B. M.; Vulcani, B.; Moretti, A.; Fritz, J.; Gastaldello, F.; Adami, C.; Caretta, C. A.; Willis, J.; Koulouridis, E.; Ramos Ceja, M. E.; Giles, P.; Baldry, I.; Birkinshaw, M.; Bongiorno, A.; Brown, M.; Chiappetti, L.; Driver, S.; Elyiv, A.; Evrard, A.; Grootes, M.; Guennou, L.; Hopkins, A.; Horellou, C.; Iovino, A.; Maurogordato, S.; Owers, M.; Pacaud, F.; Paltani, S.; Pierre, M.; Plionis, M.; Ponman, T.; Robotham, A.; Sadibekova, T.; Smolčić, Vernesa; Tuffs, R.; Vignali, C More authors...

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Guglielmo, V., Poggianti, B. M., Vulcani, B., Moretti, A., Fritz, J., Gastaldello, F. ... Vignali, C. (2018). The XXL Survey. XXX. Characterisation of the XLSSsC N01 supercluster and analysis of the galaxy stellar populations. Astronomy and Astrophysics, 620.. doi: 10.1051/0004-6361/201732507

Guglielmo, V., et al. "The XXL Survey. XXX. Characterisation of the XLSSsC N01 supercluster and analysis of the galaxy stellar populations." Astronomy and Astrophysics, vol. 620, 2018. https://doi.org/10.1051/0004-6361/201732507

Guglielmo, V., B. M. Poggianti, B. Vulcani, A. Moretti, J. Fritz, F. Gastaldello, C. Adami, et al. "The XXL Survey. XXX. Characterisation of the XLSSsC N01 supercluster and analysis of the galaxy stellar populations." Astronomy and Astrophysics 620 (2018). https://doi.org/10.1051/0004-6361/201732507

Guglielmo, V., et al. (2018) 'The XXL Survey. XXX. Characterisation of the XLSSsC N01 supercluster and analysis of the galaxy stellar populations', Astronomy and Astrophysics, 620. doi: 10.1051/0004-6361/201732507

Guglielmo V, Poggianti BM, Vulcani B, Moretti A, Fritz J, Gastaldello F, and sur.. The XXL Survey. XXX. Characterisation of the XLSSsC N01 supercluster and analysis of the galaxy stellar populations. Astronomy and Astrophysics [Internet]. 2018 [cited 2025 January 24];620. doi: 10.1051/0004-6361/201732507

V. Guglielmo, et al., "The XXL Survey. XXX. Characterisation of the XLSSsC N01 supercluster and analysis of the galaxy stellar populations", Astronomy and Astrophysics, vol. 620, 2018. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:892772. [Accessed: 24 January 2025]

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Metadata
Title (english)The XXL Survey. XXX. Characterisation of the XLSSsC N01 supercluster and analysis of the galaxy stellar populations
AuthorV. Guglielmo
AuthorB. M. Poggianti
AuthorB. Vulcani
AuthorA. Moretti
AuthorJ. Fritz
AuthorF. Gastaldello
AuthorC. Adami
AuthorC. A. Caretta
AuthorJ. Willis
AuthorE. Koulouridis
AuthorM. E. Ramos Ceja
AuthorP. Giles
AuthorI. Baldry
AuthorM. Birkinshaw
AuthorA. Bongiorno
AuthorM. Brown
AuthorL. Chiappetti
AuthorS. Driver
AuthorA. Elyiv
AuthorA. Evrard
AuthorM. Grootes
AuthorL. Guennou
AuthorA. Hopkins
AuthorC. Horellou
AuthorA. Iovino
AuthorS. Maurogordato
AuthorM. Owers
AuthorF. Pacaud
AuthorS. Paltani
AuthorM. Pierre
AuthorM. Plionis
AuthorT. Ponman
AuthorA. Robotham
AuthorT. Sadibekova
AuthorVernesa Smolčić
MBZ: 336180
AuthorR. Tuffs
AuthorC Vignali
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Astronomy and Astrophysics
Abstract (english)
Context. Superclusters form from the largest enhancements in the primordial density perturbation field and extend for tens of Mpc, tracing the large-scale structure of the Universe. X-ray detections and systematic characterisations of superclusters and the properties of their galaxies have only been possible in the last few years. Aims. We characterise XLSSsC N01, a rich supercluster at z ~ 0.3 detected in the XXL Survey, composed of X-ray clusters of different virial masses and X-ray luminosities. As one of the first studies on this topic, we investigate the stellar populations of galaxies in different environments in the supercluster region. Methods. We study a magnitude-limited (r ≤ 20) and a mass-limited sample (log(M_∗/M_⊙) ≥ 10.8) of galaxies in the virialised region and in the outskirts of 11 XLSSsC N01 clusters, in high-density field regions, and in the low-density field. We compute the stellar population properties of galaxies using spectral energy distribution (SED) and spectral fitting techniques, and study the dependence of star formation rates (SFR), colours, and stellar ages on environment. Results. For r ≤ 20, the fraction of star-forming/blue galaxies, computed either from the specific-SFR (sSFR) or rest-frame colour, shows depletion within the cluster virial radii, where the number of galaxies with log(sSFR/yr^-1) > -12 and with (g - r)_restframe < 0.6 is lower than in the field. For log(M =M) 10:8, no trends with environment emerge, as massive galaxies are mostly already passive in all environments. No differences among low- and high- density field members and cluster members emerge in the sSFR-mass relation in the mass-complete regime. Finally, the luminosity- weighted age–mass relation of the passive populations within cluster virial radii show signatures of recent environmental quenching. Conclusions. The study of luminous and massive galaxies in this supercluster shows that while environment has a prominent role in determining the fractions of star-forming/blue galaxies, its effects on the star formation activity in star-forming galaxies are negligible.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleAstronomy and Astrophysics
Numberingvol. 620, A15
p-ISSN0004-6361
e-ISSN1432-0746
DOIhttps://doi.org/10.1051/0004-6361/201732507
URN:NBNurn:nbn:hr:217:892772
Publication2018
Document URLhttps://www.aanda.org/articles/aa/abs/2018/12/aa32507-17/aa32507-17.html
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public note© ESO 2018. Received 20 December 2017; Accepted 18 April 2018; Published online 20 November 2018.
Created on2020-03-01 18:23:53