NASA's James Webb Space Telescope

ERS Program 1355

TEMPLATES: Targeting Extremely Magnified Panchromatic Lensed Arcs and Their Extended Star Formation

PI: Jane R. Rigby (NASA Goddard Space Flight Center)
Co-PIs: Joaquin Daniel Vieira (University of Illinois at Urbana - Champaign)

Science Category Galaxies and Intergalactic Medium icon
Keywords Dust, Emission-Line Galaxies, Galaxy Formation and Evolution, IR-Luminous Galaxies, Starburst Galaxies
Investigators Matthew Bayliss (Massachusetts Institute of Technology)
Travis C. Fischer (NASA Goddard Space Flight Center)
Michael Florian (University of Chicago)
Michael D. Gladders (University of Chicago)
Anthony Hernan Gonzalez (University of Florida)
David R. Law (Space Telescope Science Institute)
Daniel Marrone (University of Arizona)
Kedar A. Phadke (University of Illinois at Urbana - Champaign)
Keren Sharon (University of Michigan)
Justin Scott Spilker (University of Texas at Austin)
Abstract We propose high signal-to-noise NIRSpec and MIRI IFU spectroscopy, with accompanying imaging, for 4 gravitationally lensed galaxies at 1<z<4.  This program will spatially resolve the star formation in galaxies across the peak of cosmic star formation, in an extinction-robust manner.  Lensing magnification pushes JWST
to the highest spatial resolutions possible at these redshifts, to map the key spectral diagnostics of star formation and dust extinction: H-alpha, Pa-alpha, and 3.3um PAH within individual distant galaxies.  Our targets are among the brightest, best-characterized lensed systems known, and span a wide range of specific star formation rate, extinction, and luminosity. They have extensive ancillary datasets. Our science goals are to: 
  1. Demonstrate extinction-robust star formation rate diagnostics for distant galaxies;
  2. Determine the physical scales of star formation in distant galaxies, in an extinction-robust way;
  3. Measure specific star formation rates and compare the spatial distribution of the young and old stars; and
  4. Measure the physical conditions of star formation and their spatial variation.
This program uses key instrument modes, heavily  exercising the NIRSpec and MIRI IFUs. The resulting science-enabling data products will demonstrate JWST’s capabilities and provide the extragalactic science community with rich datasets. In four deliveries, we will provide high-quality Level 3 data cubes and mosaics,
empirical star formation diagnostics, maps of star formation, extinction, and physical properties, a tool for comparing NIRSpec and MIRI data cubes, and cookbooks on data reduction, analysis, and calibration strategy.
Instrument and Mode MIRI: Medium Resolution Spectroscopy; Imaging
NIRCam: Imaging
NIRSpec: IFU Spectroscopy
What does the program enable for the user community?
  • Map the rest-frame optical emission lines, particularly H α
  • Map Paschen α
  • Map 3.3um PAH feature (2/4 targets)
  • Map spectral energy distribution
  • Map PAH features
  • Map spectral energy distribution
How will you engage the user community? Share extensive cookbooks as Jupyter notebooks.
Team website URL