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dc.contributor.authorCorsini, E.M.
dc.contributor.authorPizzella, A.
dc.contributor.authorSarzi, M.
dc.contributor.authorCinzano, P.
dc.contributor.authorVega Beltran, J.
dc.contributor.authorFunes, J.
dc.contributor.authorBertola, F.
dc.contributor.authorPersic, M.
dc.contributor.authorSalucci, P.
dc.date.accessioned2007-12-06T14:42:25Z
dc.date.available2007-12-06T14:42:25Z
dc.date.issued1999
dc.identifier.citationCorsini , E M , Pizzella , A , Sarzi , M , Cinzano , P , Vega Beltran , J , Funes , J , Bertola , F , Persic , M & Salucci , P 1999 , ' Dark matter in early-type spiral galaxies: the case of NGC 2179 and of NGC 2775 ' , Astronomy and Astrophysics , vol. 342 , pp. 671-686 .
dc.identifier.issn1432-0746
dc.identifier.otherPURE: 180461
dc.identifier.otherPURE UUID: cf330dc6-c92c-4e2a-9df2-8c6db1eddaab
dc.identifier.otherdspace: 2299/1163
dc.identifier.otherScopus: 3943102813
dc.identifier.urihttp://hdl.handle.net/2299/1163
dc.description.abstractWe present the stellar and ionized-gas velocity curves and velocity-dispersion profiles along the major axis for six early-type spiral galaxies. Two of these galaxies, namely NGC 2179 and NGC 2775, are particularly suited for the study of dark matter halos. Using their luminosity profiles and modeling their stellar and gaseous kinematics, we derive the mass contributions of the luminous and the dark matter to the total potential. In NGC 2179 we find that the data (measured out to about the optical radius Ropt) unambiguously require the presence of a massive dark halo. For the brighter and bigger object NGC 2775, we can rule out a significant halo contribution at radii R < 0:6Ropt. Although preliminary, these results agree with the familiar mass distribution trend known for late-type spirals of comparable mass.en
dc.language.isoeng
dc.relation.ispartofAstronomy and Astrophysics
dc.rightsOpen
dc.titleDark matter in early-type spiral galaxies: the case of NGC 2179 and of NGC 2775en
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dcterms.dateAccepted1999
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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