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STScI Webcast

2017 JWST Proposal Planning Workshop

Observing galaxies in and behind massive lensing clusters with NIRISS slitless spectroscopy and NIRCam imaging

Presented by: Chris Willott (STScI)
Category: Science Workshops   Duration: 30 minutes   Broadcast date: May 15, 2017
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Observing galaxies in and behind massive lensing clusters with NIRISS slitless spectroscopy and NIRCam imaging Chris Willott (Dominion Astrophysical Observatory, Canada) I will describe a JWST spectroscopy and imaging survey of five massive galaxy cluster and ten parallel fields using the NIRISS low-resolution grisms, NIRCam imaging and NIRSpec multi-object spectroscopy. The primary goal is to understand the evolution of low mass galaxies across cosmic time. The resolved emission line maps and line ratios for many galaxies, some at resolution of 100pc, will enable determining the spatial distribution of star formation, dust and metals. Other science goals include the detection and characterization of galaxies within the reionization epoch, using multiply-imaged lensed galaxies to constrain cluster mass distributions and dark matter substructure, and understanding star-formation suppression and morphological transformation in the most massive galaxy clusters.

Related Documents

Chris Willott's slides PDF document (.pdf)