Poster Open Access

Galaxy And Mass Assembly (GAMA): Bulge-disk decomposition of KiDS and VIKING data in the nearby universe

Casura, Sarah; Liske, Jochen; Robotham, Aaron S. G.; Taranu, Dan S.; Laine, Jarkko


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{
  "publisher": "Zenodo", 
  "DOI": "10.5281/zenodo.3556629", 
  "language": "eng", 
  "title": "Galaxy And Mass Assembly (GAMA): Bulge-disk decomposition of KiDS and VIKING data in the nearby universe", 
  "issued": {
    "date-parts": [
      [
        2019, 
        11, 
        18
      ]
    ]
  }, 
  "abstract": "<p>Obtaining reliable structural parameters for the different components of galaxies is important for a wide variety of studies of galaxy properties and evolution. I will present our current work on the bulge-disk decomposition of approximately 13000 GAMA galaxies in the nearby universe (z smaller than 0.08) in all 9 optical and near-infrared bands covered by KiDS and VIKING. The galaxy profiling itself uses the 2-dimensional Bayesian profile fitting code ProFit (Robotham et al. 2016) while the preparatory work (image segmentation/source identification, sky subtraction, initial parameter estimates) is carried out using the sister package ProFound (Robotham et al. 2018). The local PSF is estimated using a combination of ProFound and ProFit to identify stars near the galaxy of interest and fit them with a Moffat function. These decompositions will be used to derive the stellar mass functions of bulges and disks and study the nature and distribution of dust in galaxy disks.</p>", 
  "author": [
    {
      "family": "Casura, Sarah"
    }, 
    {
      "family": "Liske, Jochen"
    }, 
    {
      "family": "Robotham, Aaron S. G."
    }, 
    {
      "family": "Taranu, Dan S."
    }, 
    {
      "family": "Laine, Jarkko"
    }
  ], 
  "type": "graphic", 
  "id": "3556629"
}
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