The shape of dark matter haloes - IV. The structure of stellar discs in edge-on galaxies

S. P.C. Peters, G. de Geyter, P. C. van der Kruit*, K. C. Freeman

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    10 Citations (SciVal)

    Abstract

    We present optical and near-infrared archival observations of eight edge-on galaxies. These observations are used to model the stellar content of each galaxy using the FITSKIRT software package. Using FITSKIRT, we can self-consistently model a galaxy in each band simultaneously while treating for dust. This allows us to measure accurately both the scalelength and scaleheight of the stellar disc, plus the shape parameters of the bulge. By combining these data with the previously reported integrated magnitudes of each galaxy, we can infer their true luminosities.We have successfully modelled seven out of the eight galaxies in our sample.We find that stellar discs can be modelled correctly, but we have not been able to model the stellar bulge reliably. Our sample consists for the most part of slowly rotating galaxies and we find that the average dust layer is much thicker than is reported for faster rotating galaxies.

    Original languageEnglish
    Pages (from-to)48-64
    Number of pages17
    JournalMonthly Notices of the Royal Astronomical Society
    Volume464
    Issue number1
    DOIs
    Publication statusPublished - 1 Jan 2017

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