Stellar Distributions and NIR Colours of Normal Galaxies

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dc.creatorPeletier, R. F.
dc.creatorde Grijs, R.
dc.date1997-06-19
dc.date.accessioned2026-07-07T02:23:39Z
dc.date.available2026-07-07T02:23:39Z
dc.descriptionWe discuss some results of a morphological study of edge-on galaxies, based on optical and especially near-infrared surface photometry. We find that the vertical surface brightness distributions of galaxies are fitted very well by exponential profiles, much better than by isothermal distributions. We find that in general the vertical scale height increases when going outward. This increase is strong for early-type spiral galaxies and very small for late types. We argue that it can be due to the presence of thick discs with scale lengths larger than the galaxy's main disc. Finally we discuss the colour-magnitude relation in I-K for spiral galaxies. We find that it is a tight relation, for which the scatter is similar to the observational uncertainties, with a steeper slope than for elliptical galaxies.
dc.descriptionInvited review, to appear in "Extragalactic Astronomy in the Infrared", eds. G.A. Mamon, Trinh Xuan Thuan, and J. Tran Thanh Van, Editions Frontieres, Gif-sur-Yvette. LaTeX2e, 10 pages, 6 postscript figures and moriond.sty included. See also ftp://kapteyn.astro.rug.nl/peletier/lesarcs.ps.gz
dc.identifierhttps://arxiv.org/abs/astro-ph/9706202
dc.identifierhttp://arxiv.org/abs/astro-ph/9706202
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/11325
dc.subjectAstrophysics
dc.titleStellar Distributions and NIR Colours of Normal Galaxies
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