Poster Open Access
Casura, Sarah; Liske, Jochen; Robotham, Aaron S. G.; Taranu, Dan S.; Laine, Jarkko
{ "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", "@type": "CreativeWork", "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", "workFeatured": { "url": "http://app.iasf-milano.inaf.it/", "alternateName": "APP", "location": "Milan, Italy", "@type": "Event", "name": "The Art of Measuring Galaxy Physical Properties" }, "name": "Galaxy And Mass Assembly (GAMA): Bulge-disk decomposition of KiDS and VIKING data in the nearby universe" }
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