SBF: multi-wavelength data and models

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dc.creatorCantiello, M.
dc.creatorRaimondo, G.
dc.creatorBlakeslee, J. P.
dc.creatorBrocato, E.
dc.creatorCapaccioli, M.
dc.date2007-04-07
dc.date.accessioned2026-07-07T07:55:40Z
dc.date.available2026-07-07T07:55:40Z
dc.descriptionRecent applications have proved that the Surface Brightness Fluctuations (SBF) technique is a reliable distance indicator in a wide range of distances, and a promising tool to analyze the physical and chemical properties of unresolved stellar systems, in terms of their metallicity and age. We present the preliminary results of a project aimed at studying the evolutionary properties and distance of the stellar populations in external galaxies based on the SBF method. On the observational side, we have succeeded in detecting I-band SBF gradients in six bright ellipticals imaged with the ACS, for these same objects we are now presenting also B-band SBF data. These B-band data are the first fluctuations magnitude measurements for galaxies beyond 10 Mpc. To analyze the properties of stellar populations from the data, accurate SBF models are essential. As a part of this project, we have evaluated SBF magnitudes from Simple Stellar Population (SSP) models specifically optimized for the purpose. A wide range of chemical compositions and ages, as well as different choices of the photometric system have been investigated. All models are available at the Teramo-Stellar Populations Tools web site: www.oa-teramo.inaf.it/SPoT.
dc.descriptionPresented at From Stars to Galaxies: Building the Pieces to Build up the Universe (StarGal 2006), Venice, Italy, 16-20 Oct 2006
dc.identifierhttps://arxiv.org/abs/0704.1002
dc.identifierhttp://arxiv.org/abs/0704.1002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/127048
dc.subjectAstrophysics
dc.titleSBF: multi-wavelength data and models
dc.typetext

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