prikaz prve stranice dokumenta The XXL survey. XXI. The environment and clustering of X-ray AGN in the XXL-South field
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Scientific paper - Original scientific paper
The XXL survey. XXI. The environment and clustering of X-ray AGN in the XXL-South field
Astronomy and Astrophysics, 620 (2018); A6. https://doi.org/10.1051/0004-6361/201730479
Melnyk, O.; Elyiv, A.; Smolčić, Vernesa; Plionis, M.; Koulouridis, E.; Fotopoulou, S.; Chiappetti, L.; Adami, C.; Baran, N.; Butler, A.; Delhaize, J.; Delvecchio, I.; Finet, F.; Huynh, M.; Lidman, C.; Pierre, M.; Pompei, E.; Vignali, C.; Surdej, J More authors...

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Melnyk, O., Elyiv, A., Smolčić, V., Plionis, M., Koulouridis, E., Fotopoulou, S. ... Surdej, J. (2018). The XXL survey. XXI. The environment and clustering of X-ray AGN in the XXL-South field. Astronomy and Astrophysics, 620.. doi: 10.1051/0004-6361/201730479

Melnyk, O., et al. "The XXL survey. XXI. The environment and clustering of X-ray AGN in the XXL-South field." Astronomy and Astrophysics, vol. 620, 2018. https://doi.org/10.1051/0004-6361/201730479

Melnyk, O., A. Elyiv, Vernesa Smolčić, M. Plionis, E. Koulouridis, S. Fotopoulou, L. Chiappetti, et al. "The XXL survey. XXI. The environment and clustering of X-ray AGN in the XXL-South field." Astronomy and Astrophysics 620 (2018). https://doi.org/10.1051/0004-6361/201730479

Melnyk, O., et al. (2018) 'The XXL survey. XXI. The environment and clustering of X-ray AGN in the XXL-South field', Astronomy and Astrophysics, 620. doi: 10.1051/0004-6361/201730479

Melnyk O, Elyiv A, Smolčić V, Plionis M, Koulouridis E, Fotopoulou S, and sur.. The XXL survey. XXI. The environment and clustering of X-ray AGN in the XXL-South field. Astronomy and Astrophysics [Internet]. 2018 [cited 2024 December 08];620. doi: 10.1051/0004-6361/201730479

O. Melnyk, et al., "The XXL survey. XXI. The environment and clustering of X-ray AGN in the XXL-South field", Astronomy and Astrophysics, vol. 620, 2018. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:465958. [Accessed: 08 December 2024]

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Metadata
Title (english)The XXL survey. XXI. The environment and clustering of X-ray AGN in the XXL-South field
AuthorO. Melnyk
AuthorA. Elyiv
AuthorVernesa Smolčić
MBZ: 336180
AuthorM. Plionis
AuthorE. Koulouridis
AuthorS. Fotopoulou
AuthorL. Chiappetti
AuthorC. Adami
AuthorN. Baran
AuthorA. Butler
AuthorJ. Delhaize
AuthorI. Delvecchio
AuthorF. Finet
AuthorM. Huynh
AuthorC. Lidman
AuthorM. Pierre
AuthorE. Pompei
AuthorC. Vignali
AuthorJ Surdej
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. This work is part of a series of studies focusing on the environment and the properties of the X-ray selected active galactic nuclei (AGN) population from the XXL survey. The present survey, given its large area, continuity, extensive multiwavelength coverage, and large-scale structure information, is ideal for this kind of study. Here, we focus on the XXL-South (XXL-S) field. Aims. Our main aim is to study the environment of the various types of X-ray selected AGN and investigate its possible role in AGN triggering and evolution. Methods. We studied the large- scale (>1 Mpc) environment up to redshift z = 1 using the nearest neighbour distance method to compare various pairs of AGN types.We also investigated the small-scale environment (<0.4 Mpc) by calculating the local overdensities of optical galaxies. In addition, we built a catalogue of AGN concentrations with two or more members using the hierarchical clustering method and we correlated them with the X-ray galaxy clusters detected in the XXL survey. Results. It is found that radio detected X-ray sources are more obscured than non-radio ones, though not all radio sources are obscured AGN. We did not find any significant differences in the large-scale clustering between luminous and faint X-ray AGN, or between obscured and unobscured ones, or between radio and non-radio sources. At local scales (<0.4 Mpc), AGN typically reside in overdense regions, compared to non-AGN ; however, no differences were found between the various types of AGN. A majority of AGN concentrations with two or more members are found in the neighbourhood of X-ray galaxy clusters within <25–45 Mpc. Our results suggest that X-ray AGN are typically located in supercluster filaments, but they are also found in over- and underdense regions.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleAstronomy and Astrophysics
Numberingvol. 620, A6
p-ISSN0004-6361
e-ISSN1432-0746
DOIhttps://doi.org/10.1051/0004-6361/201730479
URN:NBNurn:nbn:hr:217:465958
Publication2018
Document URLhttps://www.aanda.org/articles/aa/abs/2018/12/aa30479-17/aa30479-17.html
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public note© ESO 2017. Received 21 January 2017. Accepted 22 November 2017. Published online 20 November 2018.
Created on2020-03-01 18:46:41