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Title: A search for strong gravitational lenses in early-type galaxies using UKIDSS
Author: Husnindriani, Prahesti
ISNI:       0000 0004 5358 0459
Awarding Body: University of Manchester
Current Institution: University of Manchester
Date of Award: 2015
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This work is focused on a search for strong gravitational lenses in early-type galaxies (ETGs). The total number of samples is 4,706 galaxies encompassing a magnitude range 15.0 < i < 18.0 and colour 3.5 < (u-r) < 5.0. Two databases were employed as the source of K-band images (UKIDSS Large Area Survey) and g, r, i images (SDSS). All samples were fitted to a Sersic component and automatically processed using GALFIT (Peng et al. 2002; Peng et al. 2010) inside a Python script (Appendix A). The first classification generated 259 galaxies which are seen as single galaxies in their K-band images. These galaxies were then reclassified based on image contouring in g, r, i, and K filters and therefore resulted in three categories of samples: Sample A (99 galaxies), Sample B (96 galaxies), and Sample C (64 galaxies).
Supervisor: Not available Sponsor: Indonesia Endowment Fund for Education (LPDP)
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Strong gravitational lensing ; Early-type galaxy (ETG) ; UKIDSS ; SDSS