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Publication - Dr Rhys Morris

    VizieR Online Data Catalog: VPHAS+ survey synthetic colours (Drew+, 2014)


    Drew, JE, Gonzalez-Solares, E, Greimel, R, Irwin, MJ, Yoldas, AK, Lewis, J, Barentsen, G, Eisloffel, J, Farnhill, HJ, Martin, WE, Walsh, JR, Walton, NA, Mohr-Smith, M, Raddi, R, Sale, SE, Wright, NJ, Groot, P, Barlow, MJ, Corradi, RLM, Drake, JJ, Fabregat, J, Frew, DJ, Gansicke, BT, Knigge, C, Mampaso, A, Morris, RAH, Naylor, T, Parker, QA, Phillipps, S, Ruhland, C, Steeghs, D, Unruh, YC, Vink, JS, Wesson, R & Zijlstra, AA, 2015, ‘VizieR Online Data Catalog: VPHAS+ survey synthetic colours (Drew+, 2014)’.


    Synthetic colours for main sequence stars, computed as described in
    Section 4 from model atmospheres, are here tabulated in full for three
    representative reddening laws (RV = 2.5, 3.1 and 3.8) and a
    range of reddenings (A0 = 0, 2, 4, 6, 8, 10). The form of the reddening
    laws used is due to Fitzpatrick & Massa (2007ApJ...663..320F, Cat.
    J/ApJ/663/320). When using the blue-filter tables, it should be borne in
    mind that beyond g-r~3, the red leak in the u filter signif- icantly
    alters u-g. In this domain we expect the synthetic colours to
    progressively become less reliable as they increas- ingly depend on
    hard-to-measure very low levels of red trans- mission. Objects that
    appear to have these extreme, peculiar colours are likely to be reddened
    red giants or supergiants, since reddened K-M main sequence stars are
    too faint to be detected in VPHAS+ exposures. Beyond g-r~3.5 these table
    entries are italicised. Two further tables of synthetic colours are
    included for K-M giants that have been computed using P98 library
    spectra. Data are provided for the RV=3.1 mean Galactic law
    only, for the limited purposes of (a) giving an impres- sion of how
    these luminous red objects may contaminate (u-g, g-r) diagrams at redder
    (g-r) through u red leak (b) enabling comparisons with the M-giant spur
    commonly seen in (r-Hα, r-i) colour-colour diagrams.

    (8 data files).

    Full details in the University publications repository