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Spatially resolved spectroscopy of lensed galaxies in the Frontier Fields

Published online by Cambridge University Press:  27 October 2016

Tucker Jones  and
the GLASS collaboration
Tucker Jones
Affiliation:
Institute for Astronomy, University of Hawaii at Manoa Honolulu, HI 96822, USA email: tucker.jones@hawaii.edu Department of Physics, University of California, Santa Barbara Santa Barbara, CA 93106, USA Hubble Fellow
the GLASS collaboration
Affiliation:
http://glass.physics.ucsb.edu/
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Abstract

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The Grism Lens-Amplified Survey from Space (GLASS) has obtained slitless near-infrared spectroscopy of 10 galaxy clusters selected for their strong lensing properties, including all six Hubble Frontier Fields. Slitless grism spectra are ideal for mapping emission lines such as [O ii], [O iii], and Hα at z=1–3. The combination of strong gravitational lensing and Hubble's diffraction limit provides excellent sensitivity with spatial resolution as fine as 100 pc for highly magnified sources, and ~500 pc for less magnified sources near the edge of the field of view. The GLASS survey represents the largest spectroscopic sample with such high resolution at z > 1. GLASS and Hubble Frontier Field data provide the distribution of stellar mass, star formation, gas-phase metallicity, and other aspects of the physical structure of high redshift galaxies, reaching stellar masses as low as ~107 M⊙ at z=2. I discuss precise measurements of these physical properties and implications for galaxy evolution.

Keywords

gravitational lensinggalaxies: abundancesgalaxies: evolutiongalaxies: high-redshift
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , General Assembly A29B: Astronomy in Focus , August 2015 , pp. 772 - 775
Copyright
Copyright © International Astronomical Union 2016 

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