Hypervelocity Stars Track Back to the Galactic Center in Gaia DR3

• Published in: Astrophysical journal. Letters Vol. 944; no. 2; p. L39
• Main Authors: Liao, Jiwei, Du, Cuihua, Li, Hefan, Ma, Jun, Shi, Jianrong
• Format: Journal Article
• Language: English
• Published: Austin The American Astronomical Society 01.02.2023; IOP Publishing
• Subjects: Astronomical models; Ejection; Galactic center; Hypervelocity; Hypervelocity stars; Magellanic clouds; Perturbation; Stars; Stellar dynamics; Stellar kinematics; Supermassive black holes

Based on the proper motions and radial velocities from Gaia Data Release 3, we identify two hypervelocity stars (HVSs) that may originate from the Galactic center (GC). We select the candidates by first filtering for all Gaia stars with Galactocentric radial velocities >500 km s −1 . We also requ...