Spectro-photometric Evolution of Elliptical Galaxies. II. Models with infall

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dc.creatorTantalo, R.
dc.creatorChiosi, C.
dc.creatorBressan, A.
dc.creatorFagotto, F.
dc.date1996-02-01
dc.date.accessioned2026-07-07T02:20:51Z
dc.date.available2026-07-07T02:20:51Z
dc.descriptionIn this paper we present new chemo-spectro-photometric models of elliptical galaxies in which infall of primordial gas is allowed to occur. They aim to simulate the collapse of a galaxy made of two components, i.e. luminous material and dark matter. The mass of the dark component is assumed to be constant in time, whereas that of the luminous material is supposed to accrete at a suitable rate. They also include the effect of galactic winds powered by supernova explosions and stellar winds from massive, early-type stars. The models are constrained to match a number of properties of elliptical galaxies, i.e. the slope and mean colours of the colour-magnitude relation (CMR), V versus (V--K), the UV excess as measured by the colour (1550--V) together with the overall shape of the integrated spectral energy distribution (ISED) in the ultraviolet, the relation between the Mg2 index and (1550--V), the mass to blue luminosity ratio M/Lb as a function of the B luminosity, and finally the broad-band colours (U--B), (B--V), (V--I), (V--K), etc.
dc.descriptionpages 22, 20 postscript figures, 2 external table (tab2_infall using supertabular.sty and tab5_infall using supertabular1.sty)
dc.identifierhttps://arxiv.org/abs/astro-ph/9602003
dc.identifierhttp://arxiv.org/abs/astro-ph/9602003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/10350
dc.subjectAstrophysics
dc.titleSpectro-photometric Evolution of Elliptical Galaxies. II. Models with infall
dc.typetext

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