Secular Evolution of Bulges Induced by Satellite Accretion

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dc.book.titleFormation and evolution of galaxy disks
dc.contributor.authorEliche Moral, María del Carmen
dc.contributor.authorGonzález García, A. C.
dc.contributor.authorBalcells, M.
dc.contributor.authorAguerri, J. A. L.
dc.contributor.authorGallego Maestro, Jesús
dc.contributor.authorZamorano Calvo, Jaime
dc.date.accessioned2023-06-20T13:42:51Z
dc.date.available2023-06-20T13:42:51Z
dc.date.issued2008
dc.description© Astronomical Society of the Pacific. International Conference on Formation and Evolution of Galaxy Disks (2007. Rome, Italy).
dc.description.abstractSatellite accretion events have been invoked for mimicking the internal secular evolutionary processes of bulge growth (Kormendy & Kennicutt 2004). In order to investigate this question, we perform N-body models of the accretion of satellites onto disk galaxies. A scaling between the primary and the satellite based on the Tully-Fisher relation ensures that the density ratios, critical to the outcome of the accretion; are realistic. Both the bulge-to-disk ratio and the Sersic index of the remnant bulge increase as a result of the accretion. The dominant mechanism for bulge growth is the inward flow of material from the primary disk to the bulge region during the satellite decay. The models confirm that the growth of the bulge out of disk material, a central ingredient of secular evolution models, may be triggered externally through satellite accretion. This work is described in more detail in Eliche-Moral et al. (2006).
dc.description.departmentDepto. de Física de la Tierra y Astrofísica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/34244
dc.identifier.citationAguerri, J. A. L., Balcells, M., & Peletier, R.F. 2001, A&A, 367, 428 (A01) Andredakis, Y. C., Peletier, R. F. & Balcells, M. 1995, MNRAS, 275, 874 Balcells, M., Graham, A. W., & Peletier, R. F. 2007, ApJ, 665, 1104 Eliche Moral, M. C., et al. 2006, A&A, 457, 91 Graham, A. 2001, AJ, 121, 820 Hernquist, L. 1990, J. Computat. Phys., 87, 137 Kormendy, J., & Kennicutt, R. C. 2004, ARA&A, 42, 603 Kuijken, K., & Dubinski, J. 1995, MNRAS, 277, 1341
dc.identifier.isbn978-1-58381-662-2
dc.identifier.officialurlhttp://adsabs.harvard.edu/abs/2008ASPC..396..359E
dc.identifier.urihttps://hdl.handle.net/20.500.14352/53475
dc.issue.number396
dc.language.isoeng
dc.page.final360
dc.page.initial359
dc.publisherAstronomical Society of the Pacific
dc.relation.ispartofseriesASP Conference Series
dc.rights.accessRightsopen access
dc.subject.cdu52
dc.subject.keywordGalactic bulges
dc.subject.keywordGalaxies
dc.subject.keywordMergers
dc.subject.keywordGrowth
dc.subject.ucmAstrofísica
dc.subject.ucmAstronomía (Física)
dc.titleSecular Evolution of Bulges Induced by Satellite Accretion
dc.typebook part
dspace.entity.typePublication
relation.isAuthorOfPublication303794a4-e4bf-4262-9a94-11bc46167d8e
relation.isAuthorOfPublication949589a4-3398-4ac6-805c-5dcf70d066f2
relation.isAuthorOfPublication.latestForDiscovery303794a4-e4bf-4262-9a94-11bc46167d8e
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