Revealing the assembly history of discs in galaxies through high-order stellar kinematics with SAMI

Fast-rotating galaxies which host stellar discs show a strong anti-correlation between the higher-order Gauss-Hermite spectral moment h3 (skewness of the line) and the anisotropy parameter v/sigma. Recent cosmological hydrodynamical simulations suggest that these discs could only have formed through...

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Bibliographic Details
Main Author: van de Sande, Jesse
Format: Lecture
Language:unknown
Published: Zenodo 2016
Subjects:
Discs in galaxies
Naab
sami
Online Access:https://doi.org/10.5281/zenodo.61539
id ftzenodo:oai:zenodo.org:61539
record_format openpolar
spelling ftzenodo:oai:zenodo.org:61539 2024-09-09T20:06:02+00:00 Revealing the assembly history of discs in galaxies through high-order stellar kinematics with SAMI van de Sande, Jesse 2016-09-05 https://doi.org/10.5281/zenodo.61539 unknown Zenodo https://zenodo.org/communities/discs2016 https://doi.org/ https://doi.org/10.5281/zenodo.61539 oai:zenodo.org:61539 info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode Discs 2016, Discs in galaxies, ESO, Garching bei München, Germany, July 11-15, 2016 Discs in galaxies info:eu-repo/semantics/lecture 2016 ftzenodo https://doi.org/10.5281/zenodo.61539 2024-07-26T09:53:05Z Fast-rotating galaxies which host stellar discs show a strong anti-correlation between the higher-order Gauss-Hermite spectral moment h3 (skewness of the line) and the anisotropy parameter v/sigma. Recent cosmological hydrodynamical simulations suggest that these discs could only have formed through gas-rich mergers (Naab et al. 2014); in gas-poor mergers no discs are formed due to the absence of a dissipative gas component. With integral field spectrographs such as SAMI it is now possible to assess these results by classifying galaxies based on their higher-order stellar kinematics signatures alone. In this talk, I will present the stellar kinematic measurements from the SAMI galaxy survey and a first observational attempt to connect the higher-order stellar kinematic moments in galaxies to their cosmological assembly history. I will show the higher-order kinematic classes that we find within the SAMI galaxy survey, and compare how our new classes correlate with other global galaxy properties. Finally, I will show that our new way of classifying galaxies from their higher-order stellar kinematics signatures shows great potential for revealing possible hidden discs and bars in galaxies. Lecture sami Zenodo Naab ENVELOPE(160.933,160.933,-76.600,-76.600)
institution Open Polar
collection Zenodo
op_collection_id ftzenodo
language unknown
topic Discs in galaxies
spellingShingle Discs in galaxies
van de Sande, Jesse
Revealing the assembly history of discs in galaxies through high-order stellar kinematics with SAMI
topic_facet Discs in galaxies
description Fast-rotating galaxies which host stellar discs show a strong anti-correlation between the higher-order Gauss-Hermite spectral moment h3 (skewness of the line) and the anisotropy parameter v/sigma. Recent cosmological hydrodynamical simulations suggest that these discs could only have formed through gas-rich mergers (Naab et al. 2014); in gas-poor mergers no discs are formed due to the absence of a dissipative gas component. With integral field spectrographs such as SAMI it is now possible to assess these results by classifying galaxies based on their higher-order stellar kinematics signatures alone. In this talk, I will present the stellar kinematic measurements from the SAMI galaxy survey and a first observational attempt to connect the higher-order stellar kinematic moments in galaxies to their cosmological assembly history. I will show the higher-order kinematic classes that we find within the SAMI galaxy survey, and compare how our new classes correlate with other global galaxy properties. Finally, I will show that our new way of classifying galaxies from their higher-order stellar kinematics signatures shows great potential for revealing possible hidden discs and bars in galaxies.
format Lecture
author van de Sande, Jesse
author_facet van de Sande, Jesse
author_sort van de Sande, Jesse
title Revealing the assembly history of discs in galaxies through high-order stellar kinematics with SAMI
title_short Revealing the assembly history of discs in galaxies through high-order stellar kinematics with SAMI
title_full Revealing the assembly history of discs in galaxies through high-order stellar kinematics with SAMI
title_fullStr Revealing the assembly history of discs in galaxies through high-order stellar kinematics with SAMI
title_full_unstemmed Revealing the assembly history of discs in galaxies through high-order stellar kinematics with SAMI
title_sort revealing the assembly history of discs in galaxies through high-order stellar kinematics with sami
publisher Zenodo
publishDate 2016
url https://doi.org/10.5281/zenodo.61539
long_lat ENVELOPE(160.933,160.933,-76.600,-76.600)
geographic Naab
geographic_facet Naab
genre sami
genre_facet sami
op_source Discs 2016, Discs in galaxies, ESO, Garching bei München, Germany, July 11-15, 2016
op_relation https://zenodo.org/communities/discs2016
https://doi.org/
https://doi.org/10.5281/zenodo.61539
oai:zenodo.org:61539
op_rights info:eu-repo/semantics/openAccess
Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
op_doi https://doi.org/10.5281/zenodo.61539
_version_ 1809938421574008832

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