Element Abundances at High Redshifts: The N/O Ratio at Low Metallicity

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dc.creatorLipman, K
dc.creatorPettini, M
dc.creatorHunstead, R
dc.date1995-01-30
dc.date.accessioned2026-07-07T02:19:40Z
dc.date.available2026-07-07T02:19:40Z
dc.descriptionOur knowledge of galactic chemical evolution is currently limited to observations of Milky Way stars and H II regions of nearby galaxies. Damped Lyman~$α$ systems offer a new approach for tracking the evolution of normal galaxies from early epochs to the present day. Here we report the first measurements of nitrogen abundances in galaxies with less than 1/100 of solar metallicity, a range unexplored by previous observations.
dc.description7 pages, 3 figures. Uuencoded compressed PS file. Also available at http://www.ast.cam.ac.uk/preprint/PrePrint.html
dc.identifierhttps://arxiv.org/abs/astro-ph/9501105
dc.identifierhttp://arxiv.org/abs/astro-ph/9501105
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/9954
dc.subjectAstrophysics
dc.titleElement Abundances at High Redshifts: The N/O Ratio at Low Metallicity
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