Spatially resolved mock observations of stellar kinematics: full radiative transfer treatment of simulated galaxies
ABSTRACT We present a framework to build realistic mock spectroscopic observations for state-of-the-art hydrodynamical simulations, using high spectral resolution stellar population models and full radiative transfer treatment with skirt. As a first application, we generate stellar continuum mock ob...
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Online Access: | http://dx.doi.org/10.1093/mnras/stad1771 https://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stad1771/50607742/stad1771.pdf https://academic.oup.com/mnras/article-pdf/524/1/907/50842265/stad1771.pdf |
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croxfordunivpr:10.1093/mnras/stad1771 2024-01-07T09:46:24+01:00 Spatially resolved mock observations of stellar kinematics: full radiative transfer treatment of simulated galaxies Barrientos Acevedo, Daniela van der Wel, Arjen Baes, Maarten Grand, Robert J J Kapoor, Anand Utsav Camps, Peter de Graaff, Anna Straatman, Caroline M S Bezanson, Rachel European Research Council 2023 http://dx.doi.org/10.1093/mnras/stad1771 https://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stad1771/50607742/stad1771.pdf https://academic.oup.com/mnras/article-pdf/524/1/907/50842265/stad1771.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model Monthly Notices of the Royal Astronomical Society volume 524, issue 1, page 907-922 ISSN 0035-8711 1365-2966 Space and Planetary Science Astronomy and Astrophysics journal-article 2023 croxfordunivpr https://doi.org/10.1093/mnras/stad1771 2023-12-08T09:21:07Z ABSTRACT We present a framework to build realistic mock spectroscopic observations for state-of-the-art hydrodynamical simulations, using high spectral resolution stellar population models and full radiative transfer treatment with skirt. As a first application, we generate stellar continuum mock observations for the Auriga cosmological zoom simulations emulating integral-field observations from the Sydney–AOO Multi-object Integral Field Spectrograph (SAMI) Galaxy Survey. We perform spectral fitting on our synthetic cubes and compute the resulting rotation velocity (Vrot) and velocity dispersion within 1Re (σe) for a subset of the Auriga sample. We find that the kinematics produced by Auriga are in good agreement with the observations from the SAMI galaxy survey after taking into account the effects of dust and the systematics produced by the observation limitations. We also explore the effects of seeing convolution, inclination, and attenuation on the line-of-sight velocity distribution. For highly inclined galaxies, these effects can lead to an artificial decrease in the measured V/σ by nearly a factor of two (after inclination correction). We also demonstrate the utility of our method for high-redshift galaxies by emulating spatially resolved continuum spectra from the Large Early Galaxy Census (LEGA-C) survey and, looking forward, the European Extremely Large Telescope (E-ELT) High Angular Resolution Monolithic Optical and Near-infrared Integral field spectrograph (HARMONI). Our framework represents a crucial link between the ground truth for stellar populations and kinematics in simulations and the observed stellar continuum observations at low and high redshift. Article in Journal/Newspaper sami Oxford University Press (via Crossref) Monthly Notices of the Royal Astronomical Society 524 1 907 922 |
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Oxford University Press (via Crossref) |
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Space and Planetary Science Astronomy and Astrophysics |
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Space and Planetary Science Astronomy and Astrophysics Barrientos Acevedo, Daniela van der Wel, Arjen Baes, Maarten Grand, Robert J J Kapoor, Anand Utsav Camps, Peter de Graaff, Anna Straatman, Caroline M S Bezanson, Rachel Spatially resolved mock observations of stellar kinematics: full radiative transfer treatment of simulated galaxies |
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Space and Planetary Science Astronomy and Astrophysics |
description |
ABSTRACT We present a framework to build realistic mock spectroscopic observations for state-of-the-art hydrodynamical simulations, using high spectral resolution stellar population models and full radiative transfer treatment with skirt. As a first application, we generate stellar continuum mock observations for the Auriga cosmological zoom simulations emulating integral-field observations from the Sydney–AOO Multi-object Integral Field Spectrograph (SAMI) Galaxy Survey. We perform spectral fitting on our synthetic cubes and compute the resulting rotation velocity (Vrot) and velocity dispersion within 1Re (σe) for a subset of the Auriga sample. We find that the kinematics produced by Auriga are in good agreement with the observations from the SAMI galaxy survey after taking into account the effects of dust and the systematics produced by the observation limitations. We also explore the effects of seeing convolution, inclination, and attenuation on the line-of-sight velocity distribution. For highly inclined galaxies, these effects can lead to an artificial decrease in the measured V/σ by nearly a factor of two (after inclination correction). We also demonstrate the utility of our method for high-redshift galaxies by emulating spatially resolved continuum spectra from the Large Early Galaxy Census (LEGA-C) survey and, looking forward, the European Extremely Large Telescope (E-ELT) High Angular Resolution Monolithic Optical and Near-infrared Integral field spectrograph (HARMONI). Our framework represents a crucial link between the ground truth for stellar populations and kinematics in simulations and the observed stellar continuum observations at low and high redshift. |
author2 |
European Research Council |
format |
Article in Journal/Newspaper |
author |
Barrientos Acevedo, Daniela van der Wel, Arjen Baes, Maarten Grand, Robert J J Kapoor, Anand Utsav Camps, Peter de Graaff, Anna Straatman, Caroline M S Bezanson, Rachel |
author_facet |
Barrientos Acevedo, Daniela van der Wel, Arjen Baes, Maarten Grand, Robert J J Kapoor, Anand Utsav Camps, Peter de Graaff, Anna Straatman, Caroline M S Bezanson, Rachel |
author_sort |
Barrientos Acevedo, Daniela |
title |
Spatially resolved mock observations of stellar kinematics: full radiative transfer treatment of simulated galaxies |
title_short |
Spatially resolved mock observations of stellar kinematics: full radiative transfer treatment of simulated galaxies |
title_full |
Spatially resolved mock observations of stellar kinematics: full radiative transfer treatment of simulated galaxies |
title_fullStr |
Spatially resolved mock observations of stellar kinematics: full radiative transfer treatment of simulated galaxies |
title_full_unstemmed |
Spatially resolved mock observations of stellar kinematics: full radiative transfer treatment of simulated galaxies |
title_sort |
spatially resolved mock observations of stellar kinematics: full radiative transfer treatment of simulated galaxies |
publisher |
Oxford University Press (OUP) |
publishDate |
2023 |
url |
http://dx.doi.org/10.1093/mnras/stad1771 https://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stad1771/50607742/stad1771.pdf https://academic.oup.com/mnras/article-pdf/524/1/907/50842265/stad1771.pdf |
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sami |
genre_facet |
sami |
op_source |
Monthly Notices of the Royal Astronomical Society volume 524, issue 1, page 907-922 ISSN 0035-8711 1365-2966 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/mnras/stad1771 |
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Monthly Notices of the Royal Astronomical Society |
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524 |
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1 |
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907 |
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922 |
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1787428176304013312 |