Slant, Fan, and Narrow: the Response of Stellar Streams to a Tilting Galactic Disk

• Published in: arXiv.org
• Main Authors: Nibauer, Jacob, Bonaca, Ana, Lisanti, Mariangela, Erkal, Denis, Hastings, Zoe
• Format: Paper
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 15.12.2023
• Subjects: Bias; Dark matter; Enceladus; Galactic disk; Stellar kinematics

Stellar streams are sensitive tracers of the gravitational potential, which is typically assumed to be static in the inner Galaxy. However, massive mergers like Gaia-Sausage-Enceladus can impart torques on the stellar disk of the Milky Way that result in the disk tilting at rates of up to 10-20 deg/...