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November 21, 2025The Astrophysical JournalOpen Access

Search for Distant Hypervelocity Star Candidates Using RR Lyrae Stars

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Authors

HFHaozhu FuYHYang HuangHZHuawei Zhang

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Overview

Observational analysis found 165 hypervelocity RR Lyrae candidates in the Milky Way, indicating distinct origins near the Galactic center.

Key Points

  • 165 hypervelocity RR Lyrae candidates were identified through analysis of distances and velocities.
  • Data on radial velocities were derived from the Sloan Digital Sky Survey.
  • Search utilized precise measurements from Gaia to enhance star velocity estimations.
  • Results highlight potential origins of hypervelocity stars, warranting further investigations into their sources.

Cite This Study

Fu et al. (2025) studied this question.

synapsesocial.com/papers/6924e3f2c0ce034ddc34efc9https://doi.org/10.3847/1538-4357/ae0c09
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Also Consider

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  1. 1Search for Hypervelocity Stars in the Gaia Catalog2025
  2. 2Improved constraints on Galactic Centre ejection of hypervelocity stars based on novel search method2024 · 1 citations
  3. 3The Next Generation Virgo Cluster Survey. XXXVII. Distant RR Lyrae Stars and the Milky Way Stellar Halo Out to 300 kpc2024 · 10 citations
  4. 4Hypervelocity star candidates from <i>Gaia</i> DR2 and DR3 proper motions and parallaxes2024 · 5 citations
  5. 5Forty Hypervelocity Stars from Gaia DR32024