Show simple item record

dc.contributor.authorJogee, S.
dc.contributor.authorShlosman, I.
dc.contributor.authorLaine, S.
dc.contributor.authorEnglmaier, P.
dc.contributor.authorKnapen, J.
dc.contributor.authorScoville, N.Z.
dc.contributor.authorWilson, C.D.
dc.contributor.editorCollin, S
dc.contributor.editorCombes, F
dc.contributor.editorShlosman, I
dc.date.accessioned2011-11-28T16:01:11Z
dc.date.available2011-11-28T16:01:11Z
dc.date.issued2003
dc.identifier.citationJogee , S , Shlosman , I , Laine , S , Englmaier , P , Knapen , J , Scoville , N Z & Wilson , C D 2003 , Bar-Driven Disk Evolution: Grand Design Nuclear Spirals . in S Collin , F Combes & I Shlosman (eds) , Active Galactic Nuclei : From Central Engine to Host Galaxy . vol. 290 , ASP Conf Series , vol. 290 , Astronomical Society of the Pacific , pp. 437- .
dc.identifier.otherPURE: 462271
dc.identifier.otherPURE UUID: f2ae070d-66c1-458e-b6ef-b1bf13c94b25
dc.identifier.otherdspace: 2299/1453
dc.identifier.urihttp://hdl.handle.net/2299/7161
dc.descriptionOriginal paper can be found at: http://www.astrosociety.org/pubs/cs/286.html--Copyright Astronomical Society of the Pacific
dc.description.abstractOur study of the grand-design spiral galaxy NGC 5248 reveals that the feature previously thought to be an inclined disk is in fact an extended bar or semi-major axis 7.1 kpc, embedded within a fainter outer disk which is visible out to a radius of 17.2 kpc. NGC 5248 provides a classic demonstration of how an extended large-scale stellar bar embedded within a faint outer disk can be missed if imaging studies lack the sensitivity detect the outer disk. This effect may well lead high redshift studies to underestimate the fraction of barred galaxies. Through multi-wavelength observations and hydrodynamical modeling, we also demonstrate that the grand-design nuclear spiral on scales of 75-225 pc in NGC 5248 forms part of an exyended grand-design spiral which can be traced from 8 kpc down to 80 pc and appears to be driven by the large-scale stellar bar. This study suggests that grand-design spirals on scales of several 10-100 pc, which are increasingly common in HST images of galaxies, can be generated by bar-driven gaseous spiral density waves which propagate inside the OILR. This propagation is particularly effective when the central mass concentration is low. Conversely, an existing large central mass concentration favors other bar-driven gas transport mechanisms such as dynamically decoupled secondary nuclear bars.en
dc.language.isoeng
dc.publisherAstronomical Society of the Pacific
dc.relation.ispartofActive Galactic Nuclei
dc.relation.ispartofseriesASP Conf Series
dc.rightsOpen
dc.titleBar-Driven Disk Evolution: Grand Design Nuclear Spiralsen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dc.description.versiontypeFinal Published version
dcterms.dateAccepted2003
rioxxterms.versionVoR
rioxxterms.typeOther
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record