A ~1 solar-mass main-sequence star with supersolar metallicity has been traced back to the galactic center as a hypervelocity star ejected by the Hills mechanism.
Title resolution pending
7 Pith papers cite this work. Polarity classification is still indexing.
representative citing papers
Chemical tagging via Gaussian Mixture Model on multiple abundances shows that halo substructures Sequoia, Heracles, Thamnos, and Helmi Stream are contaminated mixtures dominated by GSE and disc stars, with additional contributions from Sagittarius and omega Cen.
A phase-coherent 20-year timing solution for PSR J1905+0154A yields precise spin, orbital and astrometric parameters, identifies a helium white dwarf companion of 0.17-0.19 solar masses, and indicates the system may be unbound from NGC 6749.
The MGCS releases official catalogs, completeness tests, and improved absolute proper motions (~3x better than Gaia) for 34 Galactic globular clusters, updating associations with galaxy progenitors for several systems.
RR Lyrae stars yield metallicity measurements for Milky Way halo substructures including Gaia Sausage/Enceladus at [Fe/H] = -1.57 dex, with some features like ED-1 showing disk contamination and others like Shiva and Shakti suggested as in-situ.
Using 8D chemical clustering on APOGEE DR17 and kinematic matching to e-TidalGCs simulations, the authors report 470 ω Cen-like stars including 6 kinematically consistent with its stream and additional links to streams from five other clusters, supporting a common disrupted progenitor.
Simulations project that the Lunar Gravitational Wave Antenna could detect roughly 30 Galactic monochromatic double white dwarf sources and 10 extragalactic mergers in 10 years using population synthesis and Fisher matrix methods.
citing papers explorer
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Discovery of Galactic center ejected star in DESI DR1
A ~1 solar-mass main-sequence star with supersolar metallicity has been traced back to the galactic center as a hypervelocity star ejected by the Hills mechanism.
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Chemical decoding of kinematic substructures in the Galactic halo
Chemical tagging via Gaussian Mixture Model on multiple abundances shows that halo substructures Sequoia, Heracles, Thamnos, and Helmi Stream are contaminated mixtures dominated by GSE and disc stars, with additional contributions from Sagittarius and omega Cen.
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The one and the only: the pulsar - white dwarf system in NGC 6749
A phase-coherent 20-year timing solution for PSR J1905+0154A yields precise spin, orbital and astrometric parameters, identifies a helium white dwarf companion of 0.17-0.19 solar masses, and indicates the system may be unbound from NGC 6749.
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The Hubble Missing Globular Cluster Survey. III. Astro-photometric catalogs, artificial-star tests, and improved absolute proper motions
The MGCS releases official catalogs, completeness tests, and improved absolute proper motions (~3x better than Gaia) for 34 Galactic globular clusters, updating associations with galaxy progenitors for several systems.
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Probing the Milky Way Halo with RR Lyrae Stars from Gaia Data Release 3
RR Lyrae stars yield metallicity measurements for Milky Way halo substructures including Gaia Sausage/Enceladus at [Fe/H] = -1.57 dex, with some features like ED-1 showing disk contamination and others like Shiva and Shakti suggested as in-situ.
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The Nephele ecosystem: stars, globular clusters, and stellar streams associated with the progenitor galaxy of $\omega$ Centauri
Using 8D chemical clustering on APOGEE DR17 and kinematic matching to e-TidalGCs simulations, the authors report 470 ω Cen-like stars including 6 kinematically consistent with its stream and additional links to streams from five other clusters, supporting a common disrupted progenitor.
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Observing Double White Dwarfs with the Lunar GW Antenna
Simulations project that the Lunar Gravitational Wave Antenna could detect roughly 30 Galactic monochromatic double white dwarf sources and 10 extragalactic mergers in 10 years using population synthesis and Fisher matrix methods.