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Abstract <p>We search broad solar neighborhood for K- and early M-type dwarf stars with greater than Galactic escape velocities based on Gaia DR3 proper-motion and distance data exclusively. We find 11 bona fide hypervelocity star candidates, which have total velocities <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\({\geq}500\)</EquationSource> <!--BPhysMGU2570110Zhuiko-m1--> </InlineEquation> km/s relative to the Galactic center computed both with trigonometric-parallax based and photometric distances.</p>

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Search for Hypervelocity Stars in the Gaia Catalog

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • S. V. Zhuiko,
  • V. N. Sementsov,
  • A. K. Dambis

摘要

Abstract

We search broad solar neighborhood for K- and early M-type dwarf stars with greater than Galactic escape velocities based on Gaia DR3 proper-motion and distance data exclusively. We find 11 bona fide hypervelocity star candidates, which have total velocities \({\geq}500\) km/s relative to the Galactic center computed both with trigonometric-parallax based and photometric distances.