The elliptical galaxy NGC 5044: Stellar population and ionized gas

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dc.creatorRickes, M. G.
dc.creatorPastoriza, M. G.
dc.creatorBonatto, Ch
dc.date2007-11-27
dc.date.accessioned2026-07-07T08:45:45Z
dc.date.available2026-07-07T08:45:45Z
dc.descriptionIn this work we investigate the stellar population, metallicity distribution and ionized gas in the elliptical galaxy NGC 5044, using long-slit spectroscopy and a stellar population synthesis method. We found differences in the slope of metal-line profiles along the galaxy which suggests an enhancement of alpha elements, particularly towards the central region. The presence of a non-thermal ionization source, such as a low-luminosity AGN and/or shock ionization, is implied by the large values of the ratio (N II])Ha observed in all sampled regions. However, the emission lines observed in the external regions indicate the presence of an additional ionization source, probably hot, post-AGB stars.
dc.descriptionAccepted by A&A
dc.identifierhttps://arxiv.org/abs/0711.4372
dc.identifierhttp://arxiv.org/abs/0711.4372
dc.identifierdoi:10.1051/0004-6361:20034302
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/143061
dc.subjectAstrophysics
dc.titleThe elliptical galaxy NGC 5044: Stellar population and ionized gas
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