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


JSON-LD (schema.org) Export

{
  "inLanguage": {
    "alternateName": "eng", 
    "@type": "Language", 
    "name": "English"
  }, 
  "description": "<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>", 
  "license": "https://creativecommons.org/licenses/by/4.0/legalcode", 
  "creator": [
    {
      "affiliation": "Universit\u00e4t Hamburg", 
      "@type": "Person", 
      "name": "Casura, Sarah"
    }, 
    {
      "affiliation": "Universit\u00e4t Hamburg", 
      "@type": "Person", 
      "name": "Liske, Jochen"
    }, 
    {
      "affiliation": "ICRAR University of Western Australia", 
      "@type": "Person", 
      "name": "Robotham, Aaron S. G."
    }, 
    {
      "affiliation": "Princeton University", 
      "@type": "Person", 
      "name": "Taranu, Dan S."
    }, 
    {
      "affiliation": "Universit\u00e4t Hamburg", 
      "@type": "Person", 
      "name": "Laine, Jarkko"
    }
  ], 
  "url": "https://zenodo.org/record/3556629", 
  "datePublished": "2019-11-18", 
  "keywords": [
    "galaxies: structure", 
    "galaxies: fundamental parameters", 
    "dust, extinction", 
    "catalogues", 
    "methods: statistical", 
    "techniques: photometric"
  ], 
  "@context": "https://schema.org/", 
  "identifier": "https://doi.org/10.5281/zenodo.3556629", 
  "@id": "https://doi.org/10.5281/zenodo.3556629", 
  "@type": "CreativeWork", 
  "name": "Galaxy And Mass Assembly (GAMA): Bulge-disk decomposition of KiDS and VIKING data in the nearby universe"
}
61
69
views
downloads
All versions This version
Views 6161
Downloads 6969
Data volume 413.3 MB413.3 MB
Unique views 5555
Unique downloads 5757

Share

Cite as