Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/31012
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Longobardi, A. | en_US |
dc.contributor.author | Boselli, A. | en_US |
dc.contributor.author | Boissier, S. | en_US |
dc.contributor.author | BIANCHI, SIMONE | en_US |
dc.contributor.author | Andreani, P. | en_US |
dc.contributor.author | Sarpa, E. | en_US |
dc.contributor.author | Nanni, A. | en_US |
dc.contributor.author | Miville-Deschênes, M. | en_US |
dc.date.accessioned | 2021-09-01T12:07:37Z | - |
dc.date.available | 2021-09-01T12:07:37Z | - |
dc.date.issued | 2020 | en_US |
dc.identifier.issn | 0004-6361 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/31012 | - |
dc.description.abstract | Aims: We present the first detection of diffuse dust in the intra-cluster medium of the Virgo cluster out to ∼0.4 virial radii, and study the radial variation of its properties on a radial scale of the virial radius. <BR /> Methods: Analysing near-UV - i colours for a sample of ∼12 000 background galaxies with redshifts 0.02 < z < 0.8, we find significant colour reddening and relate it to variation in E(B - V) values. <BR /> Results: The E(B - V) mean profile shows a dust component characterised by an average reddening E(B - V) ∼ 0.042 ± 0.004 mag within 1.5 degrees (∼0.3 r<SUB>vir</SUB>) from the cluster centre. Assuming a Large Magellanic Cloud extinction law, we derive an average visual extinction A<SUB>V</SUB> = 0.14 ± 0.01 for a total dust mass, M<SUB>d</SUB> = 2.5 ± 0.2 × 10<SUP>9</SUP> M<SUB>⊙</SUB>, hence a dust-to-gas mass ratio M<SUB>d</SUB>/M<SUB>g</SUB> = 3.0 ± 0.3 × 10<SUP>-4</SUP>. Based on the upper limits on the flux density I<SUB>250μm = 0.1 MJy sr<SUP>-1</SUP></SUB> derived from Herschel data, we estimate an upper limit for the dust temperature of T<SUB>d</SUB> ∼ 10 K. However, similar densities can be obtained with dust at higher temperatures with lower emissivities. Conclusions: The Virgo cluster has diffuse dust in its intra-cluster medium characterised by different physical properties as those characterising the Milky Way dust. The diffuse dust in Virgo is transported into the cluster space through similar phenomena (stripping) as those building up the optical intra-cluster light, and it constitutes an additional cooling agent of the cluster gas. | en_US |
dc.language.iso | eng | en_US |
dc.title | The GALEX Ultraviolet Virgo Cluster Survey (GUViCS). VIII. Diffuse dust in the Virgo intra-cluster space | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1051/0004-6361/201937024 | en_US |
dc.identifier.scopus | 2-s2.0-85088015681 | en_US |
dc.identifier.isi | WOS:000507301900001 | en_US |
dc.identifier.url | https://www.aanda.org/articles/aa/full_html/2020/01/aa37024-19/aa37024-19.html | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 633 | en_US |
dc.relation.firstpage | L7 | en_US |
dc.type.referee | REF_1 | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | ASTRONOMY & ASTROPHYSICS | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2020A&A...633L...7L | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation | 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 | O.A. Arcetri | - |
crisitem.author.orcid | 0000-0002-9384-846X | - |
crisitem.journal.journalissn | 0004-6361 | - |
crisitem.journal.ance | E016240 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
aa37024-19.pdf | Pdf editoriale | 681.12 kB | Adobe PDF | View/Open |
Page view(s)
35
checked on Mar 29, 2024
Download(s)
17
checked on Mar 29, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.