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Probing the kinematics of early-type galaxy halos using planetary nebulae

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dc.contributor.authorCoccato, L
dc.contributor.authorGerhard, Ortwin
dc.contributor.authorArnaboldi, Magda
dc.contributor.authorDas, P
dc.contributor.authorDouglas, Nigel G
dc.contributor.authorKuijken, Konrad
dc.contributor.authorMerrifield, M R
dc.contributor.authorNapolitano, N. R.
dc.contributor.authorNoordermeer, E
dc.contributor.authorRomanowsky, A J
dc.contributor.authorCapaccioli, M
dc.contributor.authorFreeman, Kenneth
dc.date.accessioned2015-12-08T22:42:02Z
dc.date.issued2008
dc.date.updated2016-02-24T11:06:03Z
dc.description.abstractWe present first results of a study of the halo kinematics for a sample of early type galaxies using planetary nebulae (PNe) as kinematical tracers. PNe allow to extend up to several effective radii (Re) the information from absorption line kinematics (confined to within 1 or 2Re), providing valuable information and constraints for merger simulations and galaxy formation models. We find that the specific angular momentum per unit mass has a more complex radial dependence when the halo region is taken into account and that the halo velocity dispersion is related to the total galaxy luminosity, isophotal shape, and number of PNe per unit of luminosity .
dc.identifier.issn0004-6337
dc.identifier.urihttp://hdl.handle.net/1885/36911
dc.publisherWiley-VCH Verlag GMBH
dc.sourceAstronomische Nachrichten
dc.subjectKeywords: cD; Galaxies: elliptical and lenticular; Galaxies: general; Galaxies: haloes; Galaxies: kinematics and dynamics; Planetary nebulae: general
dc.titleProbing the kinematics of early-type galaxy halos using planetary nebulae
dc.typeJournal article
local.bibliographicCitation.lastpage915
local.bibliographicCitation.startpage912
local.contributor.affiliationCoccato, L, Max Plank Institute for Extraterrestial Physics
local.contributor.affiliationGerhard, Ortwin, Max Planck Institut for Extraterrestrial Physics
local.contributor.affiliationArnaboldi, Magda, European Southern Observatory
local.contributor.affiliationDas, P, Max Plank Institute for Extraterrestial Physics
local.contributor.affiliationDouglas, Nigel G, University of Groningen
local.contributor.affiliationKuijken, Konrad, University of Leiden
local.contributor.affiliationMerrifield, M R, University of Nottingham
local.contributor.affiliationNapolitano, N. R., Osservatorio Astronomico di Capodimonte
local.contributor.affiliationNoordermeer, E, University of Nottingham
local.contributor.affiliationRomanowsky, A J, University of Nottingham
local.contributor.affiliationCapaccioli, M, University of Naples Federico II
local.contributor.affiliationFreeman, Kenneth, College of Physical and Mathematical Sciences, ANU
local.contributor.authoruidFreeman, Kenneth, u7000399
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.identifier.absfor020104 - Galactic Astronomy
local.identifier.ariespublicationu4362859xPUB142
local.identifier.citationvolume329
local.identifier.doi10.1002/asna.200811051
local.identifier.scopusID2-s2.0-57149142103
local.identifier.thomsonID000262794800010
local.type.statusPublished Version

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