Traci L. Johnson

TL;DR: In this article, strong-lensing models as well as mass and magnification maps for the cores of the six Hubble Space Telescope (HST) Frontier Fields galaxy clusters are presented, constrained by the locations and redshifts of multiple image systems of lensed background galaxies.

TL;DR: The results of the submitted reconstructions with the un-blinded true mass profile of these two clusters are presented in this article, where the strengths and trade-offs in accuracy and systematics that arise for each methodology are compared.

TL;DR: In this paper, optical and near-IR imaging and spectroscopy of SGAS fixmeJ105039.6252 magnified by a strongly lensed galaxy is presented.

TL;DR: In this article, a blind test of model predictions in extragalactic astronomy, on a timescale that is short compared to a human lifetime, was made, where seven gravitational lens models with five independent methods, based on Hubble Space Telescope (HST) Hubble Frontier Field images, along with extensive spectroscopic follow-up observations by HST, the Very Large and the Keck Telescopes.

TL;DR: In this paper, the authors measured C III Lambda Lambda 1907, 1909 Angstrom emission lines in eleven gravitationally-lensed star-forming galaxies at zeta at approximately 1.6-3, finding much lower equivalent widths than previously reported for fainter lensed galaxies.