An integral-field spectroscopic strong lens survey

Abstract

We present the observational results of a survey for strong gravitational lens systems consisting of extended emission-line galaxies lensed by intervening early-type galaxies, conducted using integral field units (IFUs) of the Magellan IMACS and Gemini GMOS-N spectrographs. These data are highly valuable for corroborating the lensing interpretation of Hubble Space Telescope imaging data. We show that in many cases, ground-based IFU spectroscopy is in fact competitive with space-based imaging for the measurement of the mass model parameters of the lensing galaxy. We demonstrate a novel technique of three-dimensional gravitational lens modeling for a single lens system with a resolved lensed rotation curve. We also describe the details of our custom IFU data analysis software, which performs optimal multi-fiber extraction, relative and absolute wavelength calibration to a few hundredths of a pixel RMS, and nearly Poisson-limited sky subtraction.

Invited contribution to "Gravitational Lensing" Focus Issue of the New Journal of Physics. Some figures at reduced resolution

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Cited by in corpus (12)

• The DEEP2 Galaxy Redshift Survey: Design, Observations, Data Reduction, and Redshifts
• The Sloan Lens ACS Survey. V. The Full ACS Strong-Lens Sample
• The Data Reduction Pipeline for the SDSS-IV MaNGA IFU Galaxy Survey
• Flat-relative optimal extraction. A quick and efficient algorithm for stabilised spectrographs
• p3d: a general data-reduction tool for fiber-fed integral-field spectrographs
• A fully automated data reduction pipeline for the FRODOSpec integral field spectrograph
• Sky subtraction at the Poisson limit with fibre-optic multi-object spectroscopy
• Deep Learning for Strong Lensing Search: Tests of the Convolutional Neural Networks and New Candidates from KiDS DR3
• Sky Subtraction for LAMOST
• A search for disk-galaxy lenses in the Sloan Digital Sky Survey
• A Magellan-IMACS-IFU Search for Dynamical Drivers of Nuclear Activity. I. Reduction Pipeline and Galaxy Catalog
• Search for strong galaxy-galaxy lensing in SDSS-III BOSS