ViCTORIA project : The LOFAR HBA Virgo cluster survey

2023
journal article
article
9
dc.abstract.enContext. The Virgo cluster is the nearest (d = 16.5 Mpc) massive (M ≥ 10$^{14}$ M$_{⊙}$) galaxy cluster and is therefore a prime target for studying astrophysical processes in dense large-scale environments. In the radio band, we can probe the nonthermal components of the interstellar medium, the intracluster medium (ICM), and of active galactic nuclei (AGN). This allows an investigation of the impact of the environment on the evolution of galaxies and the contribution of AGN to ICM heating. With the ViCTORIA (VIrgo Cluster multi-Telescope Observations in Radio of Interacting galaxies and AGN) project, we are carrying out multiple wide-field surveys of the Virgo cluster at different frequencies. Aims. We aim to investigate the impact of the environment on the evolution of galaxies and the contribution of AGN to ICM heating – from the inner cluster regions out to beyond the virial radius. Methods. We performed a survey of the cluster at 120–168 MHz using the LOw-Frequency ARray (LOFAR). We imaged a 132 deg$^{2}$ region of the cluster, reaching an order-of-magnitude greater sensitivity than existing wide-field radio surveys of this field at three times higher spatial resolution compared to other low-frequency observations. We developed a tailored data processing strategy to subtract the bright central radio galaxy M 87 from the data. This allowed us to correct for systematic effects due to ionospheric variation as a function of time and direction. Results. In the final mosaic, which has a resolution of 9'' $\times$ 5'', we reach a median noise level of 140 μJy beam$^{-1}$ inside the virial radius and 280 μJy beam$^{-1}$ for the full area. We detect 112 Virgo member galaxies and 114 background galaxies. In at least 18 cases, the radio morphology of the cluster member galaxies shows clear signs of ram-pressure stripping. This includes three previously unreported candidates. In addition, we reveal previously undiscovered tails of 150 kpc in length from a previous epoch of AGN activity for NGC 4472 (M 49). While no cluster-scale diffuse radio sources are discovered, we find the presence of an extended radio signature of the W′ group. This feature is coincident with an X-ray filament detected with SRG/eROSITA in the outskirts of the cluster. We speculate that this emission is synchrotron radiation, which could be related to shocks or turbulence from accretion processes. Conclusions. The data published in this paper serve as a valuable resource for future studies. In the follow-up work of the ViCTORIA project, we will use these data for an analysis of environmental effects on the radio properties of star-forming galaxies in Virgo.pl
dc.affiliationWydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut – Obserwatorium Astronomicznepl
dc.contributor.authorEdler, H. W.pl
dc.contributor.authorde Gasperin, F.pl
dc.contributor.authorShimwell, T. W.pl
dc.contributor.authorHardcastle, M. J.pl
dc.contributor.authorBoselli, A.pl
dc.contributor.authorHeesen, V.pl
dc.contributor.authorMcCall, H.pl
dc.contributor.authorBomans, D. J.pl
dc.contributor.authorBrüggen, M.pl
dc.contributor.authorBulbul, E.pl
dc.contributor.authorChyży, Krzysztof - 100034 pl
dc.contributor.authorIgnesti, A.pl
dc.contributor.authorMerloni, A.pl
dc.contributor.authorPacaud, F.pl
dc.contributor.authorReiprich, T. H.pl
dc.contributor.authorRoberts, I. D.pl
dc.contributor.authorRottgering, H. J. A.pl
dc.contributor.authorvan Weeren, R. J.pl
dc.date.accessioned2023-11-21T17:46:23Z
dc.date.available2023-11-21T17:46:23Z
dc.date.issued2023pl
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.versionostateczna wersja wydawcy
dc.description.volume676pl
dc.identifier.articleidA24pl
dc.identifier.doi10.1051/0004-6361/202346458pl
dc.identifier.eissn1432-0746pl
dc.identifier.issn0004-6361pl
dc.identifier.urihttps://ruj.uj.edu.pl/xmlui/handle/item/323519
dc.languageengpl
dc.language.containerengpl
dc.rightsUdzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa*
dc.rights.licenceCC-BY
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/legalcode.pl*
dc.share.typeotwarte czasopismo
dc.source.integratorfalse
dc.subject.engalaxies: clusters: individual: Virgo Clusterpl
dc.subject.enradio continuum: generalpl
dc.subject.ensurveyspl
dc.subject.encatalogspl
dc.subtypeArticlepl
dc.titleViCTORIA project : The LOFAR HBA Virgo cluster surveypl
dc.title.journalAstronomy & Astrophysicspl
dc.typeJournalArticlepl
dspace.entity.typePublication
dc.abstract.enpl
Context. The Virgo cluster is the nearest (d = 16.5 Mpc) massive (M ≥ 10$^{14}$ M$_{⊙}$) galaxy cluster and is therefore a prime target for studying astrophysical processes in dense large-scale environments. In the radio band, we can probe the nonthermal components of the interstellar medium, the intracluster medium (ICM), and of active galactic nuclei (AGN). This allows an investigation of the impact of the environment on the evolution of galaxies and the contribution of AGN to ICM heating. With the ViCTORIA (VIrgo Cluster multi-Telescope Observations in Radio of Interacting galaxies and AGN) project, we are carrying out multiple wide-field surveys of the Virgo cluster at different frequencies. Aims. We aim to investigate the impact of the environment on the evolution of galaxies and the contribution of AGN to ICM heating – from the inner cluster regions out to beyond the virial radius. Methods. We performed a survey of the cluster at 120–168 MHz using the LOw-Frequency ARray (LOFAR). We imaged a 132 deg$^{2}$ region of the cluster, reaching an order-of-magnitude greater sensitivity than existing wide-field radio surveys of this field at three times higher spatial resolution compared to other low-frequency observations. We developed a tailored data processing strategy to subtract the bright central radio galaxy M 87 from the data. This allowed us to correct for systematic effects due to ionospheric variation as a function of time and direction. Results. In the final mosaic, which has a resolution of 9'' $\times$ 5'', we reach a median noise level of 140 μJy beam$^{-1}$ inside the virial radius and 280 μJy beam$^{-1}$ for the full area. We detect 112 Virgo member galaxies and 114 background galaxies. In at least 18 cases, the radio morphology of the cluster member galaxies shows clear signs of ram-pressure stripping. This includes three previously unreported candidates. In addition, we reveal previously undiscovered tails of 150 kpc in length from a previous epoch of AGN activity for NGC 4472 (M 49). While no cluster-scale diffuse radio sources are discovered, we find the presence of an extended radio signature of the W′ group. This feature is coincident with an X-ray filament detected with SRG/eROSITA in the outskirts of the cluster. We speculate that this emission is synchrotron radiation, which could be related to shocks or turbulence from accretion processes. Conclusions. The data published in this paper serve as a valuable resource for future studies. In the follow-up work of the ViCTORIA project, we will use these data for an analysis of environmental effects on the radio properties of star-forming galaxies in Virgo.
dc.affiliationpl
Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut – Obserwatorium Astronomiczne
dc.contributor.authorpl
Edler, H. W.
dc.contributor.authorpl
de Gasperin, F.
dc.contributor.authorpl
Shimwell, T. W.
dc.contributor.authorpl
Hardcastle, M. J.
dc.contributor.authorpl
Boselli, A.
dc.contributor.authorpl
Heesen, V.
dc.contributor.authorpl
McCall, H.
dc.contributor.authorpl
Bomans, D. J.
dc.contributor.authorpl
Brüggen, M.
dc.contributor.authorpl
Bulbul, E.
dc.contributor.authorpl
Chyży, Krzysztof - 100034
dc.contributor.authorpl
Ignesti, A.
dc.contributor.authorpl
Merloni, A.
dc.contributor.authorpl
Pacaud, F.
dc.contributor.authorpl
Reiprich, T. H.
dc.contributor.authorpl
Roberts, I. D.
dc.contributor.authorpl
Rottgering, H. J. A.
dc.contributor.authorpl
van Weeren, R. J.
dc.date.accessioned
2023-11-21T17:46:23Z
dc.date.available
2023-11-21T17:46:23Z
dc.date.issuedpl
2023
dc.date.openaccess
0
dc.description.accesstime
w momencie opublikowania
dc.description.version
ostateczna wersja wydawcy
dc.description.volumepl
676
dc.identifier.articleidpl
A24
dc.identifier.doipl
10.1051/0004-6361/202346458
dc.identifier.eissnpl
1432-0746
dc.identifier.issnpl
0004-6361
dc.identifier.uri
https://ruj.uj.edu.pl/xmlui/handle/item/323519
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa
dc.rights.licence
CC-BY
dc.rights.uri*
http://creativecommons.org/licenses/by/4.0/legalcode.pl
dc.share.type
otwarte czasopismo
dc.source.integrator
false
dc.subject.enpl
galaxies: clusters: individual: Virgo Cluster
dc.subject.enpl
radio continuum: general
dc.subject.enpl
surveys
dc.subject.enpl
catalogs
dc.subtypepl
Article
dc.titlepl
ViCTORIA project : The LOFAR HBA Virgo cluster survey
dc.title.journalpl
Astronomy & Astrophysics
dc.typepl
JournalArticle
dspace.entity.type
Publication
Affiliations

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