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Proceedings Paper

Simulated observations of high-redshift galaxies with the HARMONI spectrograph for the European Extremely Large Telescope
Author(s): Sarah Kendrew; Simon Zieleniewski; Ryan C. W. Houghton; Niranjan Thatte; Julien Devriendt; Matthias Tecza; Fraser Clarke; Kieran O'Brien; Boris Häußler
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Paper Abstract

We show the results of a study into the performance of the E-ELT integral field spectrograph HARMONI for observations of galaxies at 2 < z < 4. Using the instrument simulation pipeline HSIM, we performed mock observations of galaxies in this redshift range using two different methods: (i) passive galaxies modeled with simple analytical spatial profiles and star formation histories; and (ii) a single z = 3 galaxy extracted from a high-resolution cosmological simulation, with a more complex and physically representative morphology and star formation history. We describe the software tools developed to convert the simulation data into a spectral cube containing the spatial and spectral properties of the galaxy’s light. From the mock observations we estimate how well the intrinsic properties of the galaxy can be recovered using commonly used analysis tools. The HSIM pipeline also allows us to study observational biases and their likely impact on the data. We discuss the implications of the project for the future science with HARMONI in the critical redshift regime for mass assembly in galaxies.

Paper Details

Date Published: 9 August 2016
PDF: 9 pages
Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99089Y (9 August 2016); doi: 10.1117/12.2232794
Show Author Affiliations
Sarah Kendrew, European Space Agency, Space Sciences Lab. (United Kingdom)
Univ. of Oxford (United Kingdom)
Simon Zieleniewski, Univ. of Oxford (United Kingdom)
Ryan C. W. Houghton, Univ. of Oxford (United Kingdom)
Niranjan Thatte, Univ. of Oxford (United Kingdom)
Julien Devriendt, Univ. of Oxford (United Kingdom)
Matthias Tecza, Univ. of Oxford (United Kingdom)
Fraser Clarke, Univ. of Oxford (United Kingdom)
Kieran O'Brien, Univ. of Oxford (United Kingdom)
Boris Häußler, Univ. of Oxford (United Kingdom)
European Southern Observatory (Chile)
Univ. of Hertfordshire (United Kingdom)

Published in SPIE Proceedings Vol. 9908:
Ground-based and Airborne Instrumentation for Astronomy VI
Christopher J. Evans; Luc Simard; Hideki Takami, Editor(s)

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