The nature of near-infrared emission from spiral galaxies

dc.creatorJames, P. A.
dc.creatorSeigar, M. S.
dc.date1999-09-13
dc.date.accessioned2026-07-07T02:33:13Z
dc.date.available2026-07-07T02:33:13Z
dc.descriptionWe present K-band spectroscopy for several regions of three nearby spiral galaxies, NGC 613, NGC 628 and NGC 7741. Analysis of the depth of the 2.293 micron CO absorption feature in these spectra reveals that some regions have deep absorptions, indicative of recent star formation, while others have anomalously shallow absorptions. We interpret the latter as evidence for a significant but localised contribution to the 2.3 micron light from hot dust with an effective temperature of about 1000 K, which could have a significant effect on the K-band morphologies of star-forming galaxies.
dc.description7 pages, 6 figures, accepted for publication in Astronomy and Astrophysics
dc.identifierhttps://arxiv.org/abs/astro-ph/9909200
dc.identifierhttp://arxiv.org/abs/astro-ph/9909200
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/14758
dc.subjectAstrophysics
dc.titleThe nature of near-infrared emission from spiral galaxies
dc.typetext

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