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Matches in SemOpenAlex for { <https://semopenalex.org/work/W4200470237> ?p ?o ?g. }

• W4200470237 abstract "We present an approach to measure the Milky Way (MW) potential using the angular accelerations of stars in aggregate as measured by astrometric surveys like Gaia. Accelerations directly probe the gradient of the MW potential, as opposed to indirect methods using, e.g., stellar velocities. We show that end-of-mission Gaia stellar acceleration data may be used to measure the potential of the MW disk at approximately 3σ significance and, if recent measurements of the solar acceleration are included, the local dark matter density at ∼2σ significance. Since the significance of detection scales steeply as t^{5/2} for observing time t, future surveys that include angular accelerations in the astrometric solutions may be combined with Gaia to precisely measure the local dark matter density and shape of the density profile." @default.
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• W4200470237 date "2021-12-10" @default.
• W4200470237 modified "2023-10-17" @default.
• W4200470237 title "Galactic Potential and Dark Matter Density from Angular Stellar Accelerations" @default.
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• W4200470237 doi "https://doi.org/10.1103/physrevlett.127.241104" @default.
• W4200470237 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34951772" @default.
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