Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/26244
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Farina, E. P. | en_US |
dc.contributor.author | Fumagalli, M. | en_US |
dc.contributor.author | DECARLI, ROBERTO | en_US |
dc.contributor.author | Fanidakis, N. | en_US |
dc.date.accessioned | 2020-06-29T07:11:24Z | - |
dc.date.available | 2020-06-29T07:11:24Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/26244 | - |
dc.description.abstract | PKS 2155-304 is one of the brightest extragalactic source in the X-ray and EUV bands, and is a prototype for the BL Lac class of objects. In this paper, we investigate the large-scale environment of this source using new multi-object as well as long-slit spectroscopy, together with archival spectra and optical images. We find clear evidence of a modest overdensity of galaxies at z = 0.116 10 ± 0.000 06, consistent with previous determinations of the BL Lac redshift. The galaxy group has a radial velocity dispersion of 250^{+80}_{-40} km s<SUP>-1</SUP> and a virial radius of 0.22 Mpc, yielding a role-of-thumb estimate of the virial mass of M<SUB>vir</SUB> ∼ 1.5 × 10<SUP>13</SUP> M<SUB>☉</SUB>, I.e. one order of magnitude less than that observed in similar objects. This result hints towards a relatively wide diversity in the environmental properties of BL Lac objects. | en_US |
dc.language.iso | eng | en_US |
dc.title | The cluster-scale environment of PKS 2155-304 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stv2277 | en_US |
dc.identifier.scopus | 2-s2.0-84958260867 | en_US |
dc.identifier.isi | 000368005900073 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/455/1/618/984306 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 455 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | 618 | en_US |
dc.type.referee | REF_1 | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2016MNRAS.455..618F | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.orcid | 0000-0002-2662-8803 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
stv2277.pdf | Pdf editoriale | 1.8 MB | Adobe PDF | View/Open |
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