Publications by Aprajita Verma

Lensing galaxies in the CFHT Legacy Survey

14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, Proceedings (2018) 2997-3002

R Küng, P Saha, J Coles, I Ferreras, P Marshall, A More, S More, A Verma, E Baeten, C Cornen, C Macmillan, JK Wilcox

Copyright © 2018 by the Editors.All rights reserved. In Space Warps, a community of over 30 000 volunteers searched for lensed candidates in the Canada-France-Hawaii Telescope Legacy Survey (CFHTLS). 59 new lens candidates have been identified, along with rediscovery of 60% of the previously-known candidates.1 We propose that volunteers should play an integral part in the modeling of lens candidates as well. We implemented SpaghettiLens, a method allowing non-professionals to create mass models for those discovered lens candidates and to be usable in a citizen-science environment. Tests with simulated lenses show that models by experienced volunteers are comparable to those by experts.2 We present models of most of the Space Warps lens candidates that were produced collaboratively by a small community of lens enthusiasts from the volunteer community. These models allow for further analysis.

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