Stirred, not shaken: star cluster survival in the slingshot scenario

We investigate the effects of an oscillating gas filament on the dynamics of its embedded stellar clusters. Motivated by recent observational constraints, we model the host gas filament as a cylindrically symmetrical potential, and the star cluster as a Plummer sphere. In the model, the motion of th...

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Main Authors: Carrillo, DRM, Fellhauer, M, Boekholt, TCN, Stutz, A, Inostroza, MCBM
Format: Journal article
Language:English
Published: Oxford University Press 2023
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author Carrillo, DRM
Fellhauer, M
Boekholt, TCN
Stutz, A
Inostroza, MCBM
author_facet Carrillo, DRM
Fellhauer, M
Boekholt, TCN
Stutz, A
Inostroza, MCBM
author_sort Carrillo, DRM
collection OXFORD
description We investigate the effects of an oscillating gas filament on the dynamics of its embedded stellar clusters. Motivated by recent observational constraints, we model the host gas filament as a cylindrically symmetrical potential, and the star cluster as a Plummer sphere. In the model, the motion of the filament will produce star ejections from the cluster, leaving star cluster remnants that can be classified into four categories: (a) filament-associated clusters, which retain most of their particles (stars) inside the cluster and inside the filament; (b) destroyed clusters, where almost no stars are left inside the filament, and there is no surviving bound cluster; (c) ejected clusters, that leave almost no particles in the filament, since the cluster leaves the gas filament; and (d) transition clusters, corresponding to those clusters that remain in the filament, but that lose a significant fraction of particles due to ejections induced by filament oscillation. Our numerical investigation predicts that the Orion Nebula cluster is in the process of being ejected, after which it will most likely disperse into the field. This scenario is consistent with observations which indicate that the Orion Nebula cluster is expanding, and somewhat displaced from the integral-shaped filament ridgeline.
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spelling oxford-uuid:10b23b4d-dfbd-4c6d-bb8b-0dee66d642652023-06-27T11:15:16ZStirred, not shaken: star cluster survival in the slingshot scenarioJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:10b23b4d-dfbd-4c6d-bb8b-0dee66d64265EnglishSymplectic ElementsOxford University Press2023Carrillo, DRMFellhauer, MBoekholt, TCNStutz, AInostroza, MCBMWe investigate the effects of an oscillating gas filament on the dynamics of its embedded stellar clusters. Motivated by recent observational constraints, we model the host gas filament as a cylindrically symmetrical potential, and the star cluster as a Plummer sphere. In the model, the motion of the filament will produce star ejections from the cluster, leaving star cluster remnants that can be classified into four categories: (a) filament-associated clusters, which retain most of their particles (stars) inside the cluster and inside the filament; (b) destroyed clusters, where almost no stars are left inside the filament, and there is no surviving bound cluster; (c) ejected clusters, that leave almost no particles in the filament, since the cluster leaves the gas filament; and (d) transition clusters, corresponding to those clusters that remain in the filament, but that lose a significant fraction of particles due to ejections induced by filament oscillation. Our numerical investigation predicts that the Orion Nebula cluster is in the process of being ejected, after which it will most likely disperse into the field. This scenario is consistent with observations which indicate that the Orion Nebula cluster is expanding, and somewhat displaced from the integral-shaped filament ridgeline.
spellingShingle Carrillo, DRM
Fellhauer, M
Boekholt, TCN
Stutz, A
Inostroza, MCBM
Stirred, not shaken: star cluster survival in the slingshot scenario
title Stirred, not shaken: star cluster survival in the slingshot scenario
title_full Stirred, not shaken: star cluster survival in the slingshot scenario
title_fullStr Stirred, not shaken: star cluster survival in the slingshot scenario
title_full_unstemmed Stirred, not shaken: star cluster survival in the slingshot scenario
title_short Stirred, not shaken: star cluster survival in the slingshot scenario
title_sort stirred not shaken star cluster survival in the slingshot scenario
work_keys_str_mv AT carrillodrm stirrednotshakenstarclustersurvivalintheslingshotscenario
AT fellhauerm stirrednotshakenstarclustersurvivalintheslingshotscenario
AT boekholttcn stirrednotshakenstarclustersurvivalintheslingshotscenario
AT stutza stirrednotshakenstarclustersurvivalintheslingshotscenario
AT inostrozamcbm stirrednotshakenstarclustersurvivalintheslingshotscenario