Star Formation Histories of Nearby Elliptical Galaxies. II. Merger Remnant Sample

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dc.creatorHowell, Justin H.
dc.date2006-02-14
dc.date.accessioned2026-07-07T11:25:16Z
dc.date.available2026-07-07T11:25:16Z
dc.descriptionThis work presents high $S/N$ spectroscopic observations of a sample of six suspected merger remnants, selected primarily on the basis of H{\sc i} tidal debris detections. Single stellar population analysis of these galaxies indicates that their ages, metallicities, and $α$-enhancement ratios are consistent with those of a representative sample of nearby elliptical galaxies. The expected stellar population of a recent merger remnant, young age combined with low [$α$/Fe], is not seen in any H{\sc i}-selected galaxy. However, one galaxy (NGC~2534), is found to deviate from the $Z$-plane in the sense expected for a merger remnant. Another galaxy (NGC~7332), selected by other criteria, best matches the merger remnant expectations.
dc.description12 pages, 10 figures, accepted by AJ
dc.identifierhttps://arxiv.org/abs/astro-ph/0602322
dc.identifierhttp://arxiv.org/abs/astro-ph/0602322
dc.identifierAstron.J.131:2469-2477,2006
dc.identifierdoi:10.1086/503103
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195458
dc.subjectAstrophysics
dc.titleStar Formation Histories of Nearby Elliptical Galaxies. II. Merger Remnant Sample
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