THE NEXT GENERATION VIRGO CLUSTER SURVEY. XXII. SHELL FEATURE EARLY-TYPE DWARF GALAXIES IN THE VIRGO CLUSTER

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dc.contributor.authorPaudel, Sanjaya
dc.contributor.authorSmith, Rory
dc.contributor.authorDuc, Pierre Alain
dc.contributor.authorCote, Patrick
dc.contributor.authorCuillandre, Jean Charles
dc.contributor.authorFerrarese, Laura
dc.contributor.authorBlakeslee, John P.
dc.contributor.authorBoselli, Alessandro
dc.contributor.authorCantiello, Michele
dc.contributor.authorGwyn, S. D. J.
dc.contributor.authorGuhathakurta, Puragra
dc.contributor.authorMei, Simona
dc.contributor.authorMihos, J. Christopher
dc.contributor.authorPeng, Eric W.
dc.contributor.authorPowalka, Mathieu
dc.contributor.authorSanchez Janssen, Ruben
dc.contributor.authorToloba, Elisa
dc.contributor.authorZhang, Hongxin
dc.date.accessioned2024-01-10T12:09:45Z
dc.date.available2024-01-10T12:09:45Z
dc.date.issued2017
dc.description.abstractThe Next Generation Virgo Cluster Survey is a deep (with a 2 sigma detection limit mu g = 29 mag arcsec(-2) in the g-band) optical panchromatic survey targeting the Virgo cluster from its core to virial radius, for a total areal coverage of 104 square degrees. As such, the survey is well suited for the study of galaxies' outskirts, haloes, and low surface brightness features that arise from dynamical interactions within the cluster environment. We report the discovery of extremely faint (mu g > 25 mag arcsec(-2)) shells in three Virgo cluster early-type dwarf galaxies: VCC. 1361, VCC. 1447, and VCC. 1668. Among them, VCC. 1447 has an absolute magnitude Mg = -11.71 mag and is the least massive galaxy with a shell system discovered to date. We present a detailed study of these low surface brightness features. We detect between three and four shells in each of our galaxies. Within the uncertainties, we find no evidence of a color difference between the galaxy main body and shell features. The observed arcs of the shells are located up to several effective radii of the galaxies. We further explore the origin of these low surface brightness features with the help of idealized numerical simulations. We find that a near equal mass merger is best able to reproduce the main properties of the shells, including their quite symmetric appearance and their alignment along the major axis of the galaxy. The simulations provide support for a formation scenario in which a recent merger, between two near-equal mass, gas-free dwarf galaxies, forms the observed shell systems.
dc.description.funderFrench Agence Nationale de la Recherche (ANR) Grant Programme Blanc VIRAGE
dc.description.funderBrain Korea 21 Plus Program
dc.description.funderDoyak Grant
dc.description.funderNational Natural Science Foundation of China
dc.description.funderStrategic Priority Research Program, "The Emergence of Cosmological Structures," of the Chinese Academy of Sciences
dc.description.funderNSF
dc.description.funderCanadian Space Agency
dc.fechaingreso.objetodigital2024-05-30
dc.format.extent13 páginas
dc.fuente.origenWOS
dc.identifier.doi10.3847/1538-4357/834/1/66
dc.identifier.eissn1538-4357
dc.identifier.issn0004-637X
dc.identifier.urihttps://doi.org/10.3847/1538-4357/834/1/66
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/76519
dc.identifier.wosidWOS:000400136300004
dc.information.autorucFísica;Zhang H;S/I;1015729
dc.issue.numero1
dc.language.isoen
dc.nota.accesoContenido parcial
dc.publisherIOP PUBLISHING LTD
dc.revistaASTROPHYSICAL JOURNAL
dc.rightsacceso restringido
dc.subjectgalaxies: dwarf
dc.subjectgalaxies: formation
dc.subjectgalaxies: interactions
dc.subjectgalaxies: peculiar
dc.subjectgalaxies: structure
dc.subjectglobular clusters: individual (Virgo)
dc.subjectSTAR-FORMATION
dc.subjectTIDAL INTERACTION
dc.subjectMERGING GALAXIES
dc.subjectMASS
dc.subjectLUMINOSITY
dc.subjectMERGERS
dc.subjectCORE
dc.subjectCATALOG
dc.subjectEVOLUTION
dc.subjectREMNANT
dc.titleTHE NEXT GENERATION VIRGO CLUSTER SURVEY. XXII. SHELL FEATURE EARLY-TYPE DWARF GALAXIES IN THE VIRGO CLUSTER
dc.typeartículo
dc.volumen834
sipa.codpersvinculados1015729
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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