Table B.2.
Structural parameters for Sérsic LeMMINGs galaxies.
I0239 (1D) | HST Instrument = WFPC2 | Filter = F814W | # of comp = 4 | Quality = 1 | ||
Bulge | Sérsic | 21.37 ± 0.23 | 17.2 ± 1.4 | 0.83 ± 0.07 | 1.21 ± 0.05 | |
Disc | exponential | 22.95 | 80.8 | |||
Spiral Arm | Sérsic | 22.77 | 67.6 | 0.7 | ||
Nucleus | 2-parameter Gaussian function | 16.3 | 19.9 | |||
Notes.— Best-fitting model parameters for LeMMINGs galaxies from our 1D (major-axis) and 2D decompositions (see Figs. D.1 and E.1). Unless labelled otherwise, we present 1D best-fitting parameters. Shown are the galaxy name, the HST instrument and filter, the goodness of the fit, the number and nature of the fitted components, and the ground-based data at large radii for galaxies with composite profiles, that is inner HST plus outer ground-based data. Bulgeless galaxies are indicated by the superscript ‘†’. Quality flag ‘1’ indicates fits with good or higher quality levels whereas those labelled ‘2’ are questionable primarily as a result of the difficulty in modelling highly inclined (i ≳ 75°) galaxies, see the text for further detail. For each 2D galaxy component, we present the best-fitting IMFIT ellipticity (ϵ) and position angle (P.A.). The IMFIT ‘boxy’ and ‘discy’ parameter c0 is shown for 2D fits that were performed using generalised ellipses (Erwin 2015). We do not show the errors on the best-fitting 2D parameters from IMFIT as they are unrealistically low, see Erwin (2015). The fitted models (see Section 3.1) are: Sérsic Bulge (μe, Re [arcsec], Re [kiloparsec], n), Sérsic model for galaxy components other than the bulge (μe, Re [arcsec], n), exponential model (μdisc, 0, h [arcsec]), and 2-parameter Gaussian function (μGauss, 0, mGauss). μdisc, 0 and h are central surface brightness and scale length of the large-scale exponential disc. μGauss, 0 and mGauss are central surface brightness and apparent magnitude of nuclear components modelled with a 2-parameter Gaussian function. The surface brightnesses (μ) are in units of mag arcsec−2, where the magnitudes are given in the Vega magnitude system. Unless specified otherwise, the errors associated with μe, Re, n, μdisc, 0, h, μGauss, 0, and mGauss are 0.24, 15%, 15%, 0.28, 20%, 0.2, and 0.3, respectively. Sources: (a) Dullo et al. (2016); (b) Dullo & Graham (2014); (c) Dullo et al. (2018). The full table is available at the CDS.
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