Search for Hypervelocity Stars in the Gaia Catalog

Key Points

• The aim is to identify K- and early M-type dwarf stars with velocities exceeding Galactic escape velocity.
• Analyzed Gaia DR3 data for proper motion and distance estimates.
• Focused on K- and early M-type dwarf stars in the broad solar neighborhood.
• Calculated velocities relative to the Galactic center using both trigonometric and photometric distances.
• Identified 11 bona fide hypervelocity star candidates.
• All candidates have total velocities greater than or equal to 500 km/s.

Abstract