Stellar Kinematics in the Cosmic Web: Lessons from the SAMI Survey and the Horizon-AGN Simulation
We reconstruct the 3D network of cosmic filaments on Mpc scales across GAMA fields and assign SAMI field galaxies to their nearest filament to estimate the degree of alignment between SAMI galaxies' kinematic axes and their nearest filament in projection. We present the first detection of diffe...
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ftzenodo:oai:zenodo.org:1481550 2024-09-15T18:33:13+00:00 Stellar Kinematics in the Cosmic Web: Lessons from the SAMI Survey and the Horizon-AGN Simulation Welker, Charlotte 2018-11-09 https://doi.org/10.5281/zenodo.1481550 unknown Zenodo https://zenodo.org/communities/astronomy-general https://doi.org/10.5281/zenodo.1481549 https://doi.org/10.5281/zenodo.1481550 oai:zenodo.org:1481550 info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode info:eu-repo/semantics/conferencePaper 2018 ftzenodo https://doi.org/10.5281/zenodo.148155010.5281/zenodo.1481549 2024-07-25T14:34:06Z We reconstruct the 3D network of cosmic filaments on Mpc scales across GAMA fields and assign SAMI field galaxies to their nearest filament to estimate the degree of alignment between SAMI galaxies' kinematic axes and their nearest filament in projection. We present the first detection of differential galactic spin alignment trends with local cosmic filaments using IFS kinematics. Low-mass galaxies show a tendency to align their spin with their nearest filament while higher mass counterparts are more likely to display an orthogonal orientation. The stellar transition mass is confidently bracketed between 10^(10.1) Msunand 10^(10.7) Msun. In addition, we find that on average, v/sigmapeaks at a physical distance d=2.4(+-0.5) Mpc from the centre of the filaments. A similar trend is recovered in the Horizon-AGN simulation. We also find this trend to be consistent with the build-up of galaxies in rich vorticity quadrants dispatched around filaments identified in the Horizon-AGN simulation. Conference Object sami Zenodo |
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We reconstruct the 3D network of cosmic filaments on Mpc scales across GAMA fields and assign SAMI field galaxies to their nearest filament to estimate the degree of alignment between SAMI galaxies' kinematic axes and their nearest filament in projection. We present the first detection of differential galactic spin alignment trends with local cosmic filaments using IFS kinematics. Low-mass galaxies show a tendency to align their spin with their nearest filament while higher mass counterparts are more likely to display an orthogonal orientation. The stellar transition mass is confidently bracketed between 10^(10.1) Msunand 10^(10.7) Msun. In addition, we find that on average, v/sigmapeaks at a physical distance d=2.4(+-0.5) Mpc from the centre of the filaments. A similar trend is recovered in the Horizon-AGN simulation. We also find this trend to be consistent with the build-up of galaxies in rich vorticity quadrants dispatched around filaments identified in the Horizon-AGN simulation. |
format |
Conference Object |
author |
Welker, Charlotte |
spellingShingle |
Welker, Charlotte Stellar Kinematics in the Cosmic Web: Lessons from the SAMI Survey and the Horizon-AGN Simulation |
author_facet |
Welker, Charlotte |
author_sort |
Welker, Charlotte |
title |
Stellar Kinematics in the Cosmic Web: Lessons from the SAMI Survey and the Horizon-AGN Simulation |
title_short |
Stellar Kinematics in the Cosmic Web: Lessons from the SAMI Survey and the Horizon-AGN Simulation |
title_full |
Stellar Kinematics in the Cosmic Web: Lessons from the SAMI Survey and the Horizon-AGN Simulation |
title_fullStr |
Stellar Kinematics in the Cosmic Web: Lessons from the SAMI Survey and the Horizon-AGN Simulation |
title_full_unstemmed |
Stellar Kinematics in the Cosmic Web: Lessons from the SAMI Survey and the Horizon-AGN Simulation |
title_sort |
stellar kinematics in the cosmic web: lessons from the sami survey and the horizon-agn simulation |
publisher |
Zenodo |
publishDate |
2018 |
url |
https://doi.org/10.5281/zenodo.1481550 |
genre |
sami |
genre_facet |
sami |
op_relation |
https://zenodo.org/communities/astronomy-general https://doi.org/10.5281/zenodo.1481549 https://doi.org/10.5281/zenodo.1481550 oai:zenodo.org:1481550 |
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.148155010.5281/zenodo.1481549 |
_version_ |
1810474939235434496 |