26–28 May 2025
Fletcher Landgoed Hotel Holthurnsche Hof
Europe/Amsterdam timezone

Disruptions of systems on chaotic orbits in axisymmetric galactic centers

28 May 2025, 10:00
15m
Fletcher Landgoed Hotel Holthurnsche Hof

Fletcher Landgoed Hotel Holthurnsche Hof

Zevenheuvelenweg 48A, 6571 CK Berg en Dal

Speaker

zephyr penoyre

Description

If a system comes very close to a massive black hole it will be disrupted. The rate and type of these disruptions depends on the mechanism by which such a close passage occurs. We present new results showing that the axisymmetry of the potential of a galaxy (using the Milky way as an example) allows for chaotic orbits, a substantial fraction of which can dive arbitrarily close to the galactic center and be disrupted. We show that the rates of these collisionless disruptions may be significantly higher than the more conventionally studied collisional rate, caused by two body scatterings between systems. This has strong implcations for the ubiquity of exotic events like the flares from tidally disrupted stars and the production of hyper-velocity stars, in our galaxy and others.

Talk category NOVA Network 1
Preference for a talk or poster Talk

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